/*
 * Copyright 2026 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
// Generated by the protocol buffer compiler.  DO NOT EDIT!
// NO CHECKED-IN PROTOBUF GENCODE
// source: google/pubsub/v1/pubsub.proto
// Protobuf Java Version: 4.33.2

package com.google.pubsub.v1;

/**
 *
 *
 * <pre>
 * Request for the `StreamingPull` streaming RPC method. This request is used to
 * establish the initial stream as well as to stream acknowledgments and ack
 * deadline modifications from the client to the server.
 * </pre>
 *
 * Protobuf type {@code google.pubsub.v1.StreamingPullRequest}
 */
@com.google.protobuf.Generated
public final class StreamingPullRequest extends com.google.protobuf.GeneratedMessage
    implements
    // @@protoc_insertion_point(message_implements:google.pubsub.v1.StreamingPullRequest)
    StreamingPullRequestOrBuilder {
  private static final long serialVersionUID = 0L;

  static {
    com.google.protobuf.RuntimeVersion.validateProtobufGencodeVersion(
        com.google.protobuf.RuntimeVersion.RuntimeDomain.PUBLIC,
        /* major= */ 4,
        /* minor= */ 33,
        /* patch= */ 2,
        /* suffix= */ "",
        "StreamingPullRequest");
  }

  // Use StreamingPullRequest.newBuilder() to construct.
  private StreamingPullRequest(com.google.protobuf.GeneratedMessage.Builder<?> builder) {
    super(builder);
  }

  private StreamingPullRequest() {
    subscription_ = "";
    ackIds_ = com.google.protobuf.LazyStringArrayList.emptyList();
    modifyDeadlineSeconds_ = emptyIntList();
    modifyDeadlineAckIds_ = com.google.protobuf.LazyStringArrayList.emptyList();
    clientId_ = "";
  }

  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    return com.google.pubsub.v1.PubsubProto
        .internal_static_google_pubsub_v1_StreamingPullRequest_descriptor;
  }

  @java.lang.Override
  protected com.google.protobuf.GeneratedMessage.FieldAccessorTable
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        .internal_static_google_pubsub_v1_StreamingPullRequest_fieldAccessorTable
        .ensureFieldAccessorsInitialized(
            com.google.pubsub.v1.StreamingPullRequest.class,
            com.google.pubsub.v1.StreamingPullRequest.Builder.class);
  }

  public static final int SUBSCRIPTION_FIELD_NUMBER = 1;

  @SuppressWarnings("serial")
  private volatile java.lang.Object subscription_ = "";

  /**
   *
   *
   * <pre>
   * Required. The subscription for which to initialize the new stream. This
   * must be provided in the first request on the stream, and must not be set in
   * subsequent requests from client to server.
   * Format is `projects/{project}/subscriptions/{sub}`.
   * </pre>
   *
   * <code>
   * string subscription = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
   * </code>
   *
   * @return The subscription.
   */
  @java.lang.Override
  public java.lang.String getSubscription() {
    java.lang.Object ref = subscription_;
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      return (java.lang.String) ref;
    } else {
      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
      java.lang.String s = bs.toStringUtf8();
      subscription_ = s;
      return s;
    }
  }

  /**
   *
   *
   * <pre>
   * Required. The subscription for which to initialize the new stream. This
   * must be provided in the first request on the stream, and must not be set in
   * subsequent requests from client to server.
   * Format is `projects/{project}/subscriptions/{sub}`.
   * </pre>
   *
   * <code>
   * string subscription = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
   * </code>
   *
   * @return The bytes for subscription.
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  @java.lang.Override
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      subscription_ = b;
      return b;
    } else {
      return (com.google.protobuf.ByteString) ref;
    }
  }

  public static final int ACK_IDS_FIELD_NUMBER = 2;

  @SuppressWarnings("serial")
  private com.google.protobuf.LazyStringArrayList ackIds_ =
      com.google.protobuf.LazyStringArrayList.emptyList();

  /**
   *
   *
   * <pre>
   * Optional. List of acknowledgment IDs for acknowledging previously received
   * messages (received on this stream or a different stream). If an ack ID has
   * expired, the corresponding message may be redelivered later. Acknowledging
   * a message more than once will not result in an error. If the acknowledgment
   * ID is malformed, the stream will be aborted with status `INVALID_ARGUMENT`.
   * </pre>
   *
   * <code>repeated string ack_ids = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
   *
   * @return A list containing the ackIds.
   */
  public com.google.protobuf.ProtocolStringList getAckIdsList() {
    return ackIds_;
  }

  /**
   *
   *
   * <pre>
   * Optional. List of acknowledgment IDs for acknowledging previously received
   * messages (received on this stream or a different stream). If an ack ID has
   * expired, the corresponding message may be redelivered later. Acknowledging
   * a message more than once will not result in an error. If the acknowledgment
   * ID is malformed, the stream will be aborted with status `INVALID_ARGUMENT`.
   * </pre>
   *
   * <code>repeated string ack_ids = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
   *
   * @return The count of ackIds.
   */
  public int getAckIdsCount() {
    return ackIds_.size();
  }

  /**
   *
   *
   * <pre>
   * Optional. List of acknowledgment IDs for acknowledging previously received
   * messages (received on this stream or a different stream). If an ack ID has
   * expired, the corresponding message may be redelivered later. Acknowledging
   * a message more than once will not result in an error. If the acknowledgment
   * ID is malformed, the stream will be aborted with status `INVALID_ARGUMENT`.
   * </pre>
   *
   * <code>repeated string ack_ids = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
   *
   * @param index The index of the element to return.
   * @return The ackIds at the given index.
   */
  public java.lang.String getAckIds(int index) {
    return ackIds_.get(index);
  }

  /**
   *
   *
   * <pre>
   * Optional. List of acknowledgment IDs for acknowledging previously received
   * messages (received on this stream or a different stream). If an ack ID has
   * expired, the corresponding message may be redelivered later. Acknowledging
   * a message more than once will not result in an error. If the acknowledgment
   * ID is malformed, the stream will be aborted with status `INVALID_ARGUMENT`.
   * </pre>
   *
   * <code>repeated string ack_ids = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
   *
   * @param index The index of the value to return.
   * @return The bytes of the ackIds at the given index.
   */
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  public static final int MODIFY_DEADLINE_SECONDS_FIELD_NUMBER = 3;

  @SuppressWarnings("serial")
  private com.google.protobuf.Internal.IntList modifyDeadlineSeconds_ = emptyIntList();

  /**
   *
   *
   * <pre>
   * Optional. The list of new ack deadlines for the IDs listed in
   * `modify_deadline_ack_ids`. The size of this list must be the same as the
   * size of `modify_deadline_ack_ids`. If it differs the stream will be aborted
   * with `INVALID_ARGUMENT`. Each element in this list is applied to the
   * element in the same position in `modify_deadline_ack_ids`. The new ack
   * deadline is with respect to the time this request was sent to the Pub/Sub
   * system. Must be &gt;= 0. For example, if the value is 10, the new ack deadline
   * will expire 10 seconds after this request is received. If the value is 0,
   * the message is immediately made available for another streaming or
   * non-streaming pull request. If the value is &lt; 0 (an error), the stream will
   * be aborted with status `INVALID_ARGUMENT`.
   * </pre>
   *
   * <code>repeated int32 modify_deadline_seconds = 3 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   *
   * @return A list containing the modifyDeadlineSeconds.
   */
  @java.lang.Override
  public java.util.List<java.lang.Integer> getModifyDeadlineSecondsList() {
    return modifyDeadlineSeconds_;
  }

  /**
   *
   *
   * <pre>
   * Optional. The list of new ack deadlines for the IDs listed in
   * `modify_deadline_ack_ids`. The size of this list must be the same as the
   * size of `modify_deadline_ack_ids`. If it differs the stream will be aborted
   * with `INVALID_ARGUMENT`. Each element in this list is applied to the
   * element in the same position in `modify_deadline_ack_ids`. The new ack
   * deadline is with respect to the time this request was sent to the Pub/Sub
   * system. Must be &gt;= 0. For example, if the value is 10, the new ack deadline
   * will expire 10 seconds after this request is received. If the value is 0,
   * the message is immediately made available for another streaming or
   * non-streaming pull request. If the value is &lt; 0 (an error), the stream will
   * be aborted with status `INVALID_ARGUMENT`.
   * </pre>
   *
   * <code>repeated int32 modify_deadline_seconds = 3 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   *
   * @return The count of modifyDeadlineSeconds.
   */
  public int getModifyDeadlineSecondsCount() {
    return modifyDeadlineSeconds_.size();
  }

  /**
   *
   *
   * <pre>
   * Optional. The list of new ack deadlines for the IDs listed in
   * `modify_deadline_ack_ids`. The size of this list must be the same as the
   * size of `modify_deadline_ack_ids`. If it differs the stream will be aborted
   * with `INVALID_ARGUMENT`. Each element in this list is applied to the
   * element in the same position in `modify_deadline_ack_ids`. The new ack
   * deadline is with respect to the time this request was sent to the Pub/Sub
   * system. Must be &gt;= 0. For example, if the value is 10, the new ack deadline
   * will expire 10 seconds after this request is received. If the value is 0,
   * the message is immediately made available for another streaming or
   * non-streaming pull request. If the value is &lt; 0 (an error), the stream will
   * be aborted with status `INVALID_ARGUMENT`.
   * </pre>
   *
   * <code>repeated int32 modify_deadline_seconds = 3 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   *
   * @param index The index of the element to return.
   * @return The modifyDeadlineSeconds at the given index.
   */
  public int getModifyDeadlineSeconds(int index) {
    return modifyDeadlineSeconds_.getInt(index);
  }

  private int modifyDeadlineSecondsMemoizedSerializedSize = -1;

  public static final int MODIFY_DEADLINE_ACK_IDS_FIELD_NUMBER = 4;

  @SuppressWarnings("serial")
  private com.google.protobuf.LazyStringArrayList modifyDeadlineAckIds_ =
      com.google.protobuf.LazyStringArrayList.emptyList();

  /**
   *
   *
   * <pre>
   * Optional. List of acknowledgment IDs whose deadline will be modified based
   * on the corresponding element in `modify_deadline_seconds`. This field can
   * be used to indicate that more time is needed to process a message by the
   * subscriber, or to make the message available for redelivery if the
   * processing was interrupted.
   * </pre>
   *
   * <code>repeated string modify_deadline_ack_ids = 4 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   *
   * @return A list containing the modifyDeadlineAckIds.
   */
  public com.google.protobuf.ProtocolStringList getModifyDeadlineAckIdsList() {
    return modifyDeadlineAckIds_;
  }

  /**
   *
   *
   * <pre>
   * Optional. List of acknowledgment IDs whose deadline will be modified based
   * on the corresponding element in `modify_deadline_seconds`. This field can
   * be used to indicate that more time is needed to process a message by the
   * subscriber, or to make the message available for redelivery if the
   * processing was interrupted.
   * </pre>
   *
   * <code>repeated string modify_deadline_ack_ids = 4 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   *
   * @return The count of modifyDeadlineAckIds.
   */
  public int getModifyDeadlineAckIdsCount() {
    return modifyDeadlineAckIds_.size();
  }

  /**
   *
   *
   * <pre>
   * Optional. List of acknowledgment IDs whose deadline will be modified based
   * on the corresponding element in `modify_deadline_seconds`. This field can
   * be used to indicate that more time is needed to process a message by the
   * subscriber, or to make the message available for redelivery if the
   * processing was interrupted.
   * </pre>
   *
   * <code>repeated string modify_deadline_ack_ids = 4 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   *
   * @param index The index of the element to return.
   * @return The modifyDeadlineAckIds at the given index.
   */
  public java.lang.String getModifyDeadlineAckIds(int index) {
    return modifyDeadlineAckIds_.get(index);
  }

  /**
   *
   *
   * <pre>
   * Optional. List of acknowledgment IDs whose deadline will be modified based
   * on the corresponding element in `modify_deadline_seconds`. This field can
   * be used to indicate that more time is needed to process a message by the
   * subscriber, or to make the message available for redelivery if the
   * processing was interrupted.
   * </pre>
   *
   * <code>repeated string modify_deadline_ack_ids = 4 [(.google.api.field_behavior) = OPTIONAL];
   * </code>
   *
   * @param index The index of the value to return.
   * @return The bytes of the modifyDeadlineAckIds at the given index.
   */
  public com.google.protobuf.ByteString getModifyDeadlineAckIdsBytes(int index) {
    return modifyDeadlineAckIds_.getByteString(index);
  }

  public static final int STREAM_ACK_DEADLINE_SECONDS_FIELD_NUMBER = 5;
  private int streamAckDeadlineSeconds_ = 0;

  /**
   *
   *
   * <pre>
   * Required. The ack deadline to use for the stream. This must be provided in
   * the first request on the stream, but it can also be updated on subsequent
   * requests from client to server. The minimum deadline you can specify is 10
   * seconds. The maximum deadline you can specify is 600 seconds (10 minutes).
   * </pre>
   *
   * <code>int32 stream_ack_deadline_seconds = 5 [(.google.api.field_behavior) = REQUIRED];</code>
   *
   * @return The streamAckDeadlineSeconds.
   */
  @java.lang.Override
  public int getStreamAckDeadlineSeconds() {
    return streamAckDeadlineSeconds_;
  }

  public static final int CLIENT_ID_FIELD_NUMBER = 6;

  @SuppressWarnings("serial")
  private volatile java.lang.Object clientId_ = "";

  /**
   *
   *
   * <pre>
   * Optional. A unique identifier that is used to distinguish client instances
   * from each other. Only needs to be provided on the initial request. When a
   * stream disconnects and reconnects for the same stream, the client_id should
   * be set to the same value so that state associated with the old stream can
   * be transferred to the new stream. The same client_id should not be used for
   * different client instances.
   * </pre>
   *
   * <code>string client_id = 6 [(.google.api.field_behavior) = OPTIONAL];</code>
   *
   * @return The clientId.
   */
  @java.lang.Override
  public java.lang.String getClientId() {
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      clientId_ = s;
      return s;
    }
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  /**
   *
   *
   * <pre>
   * Optional. A unique identifier that is used to distinguish client instances
   * from each other. Only needs to be provided on the initial request. When a
   * stream disconnects and reconnects for the same stream, the client_id should
   * be set to the same value so that state associated with the old stream can
   * be transferred to the new stream. The same client_id should not be used for
   * different client instances.
   * </pre>
   *
   * <code>string client_id = 6 [(.google.api.field_behavior) = OPTIONAL];</code>
   *
   * @return The bytes for clientId.
   */
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  public static final int MAX_OUTSTANDING_MESSAGES_FIELD_NUMBER = 7;
  private long maxOutstandingMessages_ = 0L;

  /**
   *
   *
   * <pre>
   * Optional. Flow control settings for the maximum number of outstanding
   * messages. When there are `max_outstanding_messages` currently sent to the
   * streaming pull client that have not yet been acked or nacked, the server
   * stops sending more messages. The sending of messages resumes once the
   * number of outstanding messages is less than this value. If the value is
   * &lt;= 0, there is no limit to the number of outstanding messages. This
   * property can only be set on the initial StreamingPullRequest. If it is set
   * on a subsequent request, the stream will be aborted with status
   * `INVALID_ARGUMENT`.
   * </pre>
   *
   * <code>int64 max_outstanding_messages = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
   *
   * @return The maxOutstandingMessages.
   */
  @java.lang.Override
  public long getMaxOutstandingMessages() {
    return maxOutstandingMessages_;
  }

  public static final int MAX_OUTSTANDING_BYTES_FIELD_NUMBER = 8;
  private long maxOutstandingBytes_ = 0L;

  /**
   *
   *
   * <pre>
   * Optional. Flow control settings for the maximum number of outstanding
   * bytes. When there are `max_outstanding_bytes` or more worth of messages
   * currently sent to the streaming pull client that have not yet been acked or
   * nacked, the server will stop sending more messages. The sending of messages
   * resumes once the number of outstanding bytes is less than this value. If
   * the value is &lt;= 0, there is no limit to the number of outstanding bytes.
   * This property can only be set on the initial StreamingPullRequest. If it is
   * set on a subsequent request, the stream will be aborted with status
   * `INVALID_ARGUMENT`.
   * </pre>
   *
   * <code>int64 max_outstanding_bytes = 8 [(.google.api.field_behavior) = OPTIONAL];</code>
   *
   * @return The maxOutstandingBytes.
   */
  @java.lang.Override
  public long getMaxOutstandingBytes() {
    return maxOutstandingBytes_;
  }

  public static final int PROTOCOL_VERSION_FIELD_NUMBER = 10;
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  /**
   *
   *
   * <pre>
   * Optional. The protocol version used by the client. This property can only
   * be set on the initial StreamingPullRequest. If it is set on a subsequent
   * request, the stream will be aborted with status `INVALID_ARGUMENT`.
   * </pre>
   *
   * <code>int64 protocol_version = 10 [(.google.api.field_behavior) = OPTIONAL];</code>
   *
   * @return The protocolVersion.
   */
  @java.lang.Override
  public long getProtocolVersion() {
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  }

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    byte isInitialized = memoizedIsInitialized;
    if (isInitialized == 1) return true;
    if (isInitialized == 0) return false;

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  @java.lang.Override
  public boolean equals(final java.lang.Object obj) {
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      return true;
    }
    if (!(obj instanceof com.google.pubsub.v1.StreamingPullRequest)) {
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    if (!getModifyDeadlineSecondsList().equals(other.getModifyDeadlineSecondsList())) return false;
    if (!getModifyDeadlineAckIdsList().equals(other.getModifyDeadlineAckIdsList())) return false;
    if (getStreamAckDeadlineSeconds() != other.getStreamAckDeadlineSeconds()) return false;
    if (!getClientId().equals(other.getClientId())) return false;
    if (getMaxOutstandingMessages() != other.getMaxOutstandingMessages()) return false;
    if (getMaxOutstandingBytes() != other.getMaxOutstandingBytes()) return false;
    if (getProtocolVersion() != other.getProtocolVersion()) return false;
    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
    return true;
  }

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    }
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    public Builder clearAckIds() {
      ackIds_ = com.google.protobuf.LazyStringArrayList.emptyList();
      bitField0_ = (bitField0_ & ~0x00000002);
      ;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. List of acknowledgment IDs for acknowledging previously received
     * messages (received on this stream or a different stream). If an ack ID has
     * expired, the corresponding message may be redelivered later. Acknowledging
     * a message more than once will not result in an error. If the acknowledgment
     * ID is malformed, the stream will be aborted with status `INVALID_ARGUMENT`.
     * </pre>
     *
     * <code>repeated string ack_ids = 2 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @param value The bytes of the ackIds to add.
     * @return This builder for chaining.
     */
    public Builder addAckIdsBytes(com.google.protobuf.ByteString value) {
      if (value == null) {
        throw new NullPointerException();
      }
      checkByteStringIsUtf8(value);
      ensureAckIdsIsMutable();
      ackIds_.add(value);
      bitField0_ |= 0x00000002;
      onChanged();
      return this;
    }

    private com.google.protobuf.Internal.IntList modifyDeadlineSeconds_ = emptyIntList();

    private void ensureModifyDeadlineSecondsIsMutable() {
      if (!modifyDeadlineSeconds_.isModifiable()) {
        modifyDeadlineSeconds_ = makeMutableCopy(modifyDeadlineSeconds_);
      }
      bitField0_ |= 0x00000004;
    }

    /**
     *
     *
     * <pre>
     * Optional. The list of new ack deadlines for the IDs listed in
     * `modify_deadline_ack_ids`. The size of this list must be the same as the
     * size of `modify_deadline_ack_ids`. If it differs the stream will be aborted
     * with `INVALID_ARGUMENT`. Each element in this list is applied to the
     * element in the same position in `modify_deadline_ack_ids`. The new ack
     * deadline is with respect to the time this request was sent to the Pub/Sub
     * system. Must be &gt;= 0. For example, if the value is 10, the new ack deadline
     * will expire 10 seconds after this request is received. If the value is 0,
     * the message is immediately made available for another streaming or
     * non-streaming pull request. If the value is &lt; 0 (an error), the stream will
     * be aborted with status `INVALID_ARGUMENT`.
     * </pre>
     *
     * <code>repeated int32 modify_deadline_seconds = 3 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @return A list containing the modifyDeadlineSeconds.
     */
    public java.util.List<java.lang.Integer> getModifyDeadlineSecondsList() {
      modifyDeadlineSeconds_.makeImmutable();
      return modifyDeadlineSeconds_;
    }

    /**
     *
     *
     * <pre>
     * Optional. The list of new ack deadlines for the IDs listed in
     * `modify_deadline_ack_ids`. The size of this list must be the same as the
     * size of `modify_deadline_ack_ids`. If it differs the stream will be aborted
     * with `INVALID_ARGUMENT`. Each element in this list is applied to the
     * element in the same position in `modify_deadline_ack_ids`. The new ack
     * deadline is with respect to the time this request was sent to the Pub/Sub
     * system. Must be &gt;= 0. For example, if the value is 10, the new ack deadline
     * will expire 10 seconds after this request is received. If the value is 0,
     * the message is immediately made available for another streaming or
     * non-streaming pull request. If the value is &lt; 0 (an error), the stream will
     * be aborted with status `INVALID_ARGUMENT`.
     * </pre>
     *
     * <code>repeated int32 modify_deadline_seconds = 3 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @return The count of modifyDeadlineSeconds.
     */
    public int getModifyDeadlineSecondsCount() {
      return modifyDeadlineSeconds_.size();
    }

    /**
     *
     *
     * <pre>
     * Optional. The list of new ack deadlines for the IDs listed in
     * `modify_deadline_ack_ids`. The size of this list must be the same as the
     * size of `modify_deadline_ack_ids`. If it differs the stream will be aborted
     * with `INVALID_ARGUMENT`. Each element in this list is applied to the
     * element in the same position in `modify_deadline_ack_ids`. The new ack
     * deadline is with respect to the time this request was sent to the Pub/Sub
     * system. Must be &gt;= 0. For example, if the value is 10, the new ack deadline
     * will expire 10 seconds after this request is received. If the value is 0,
     * the message is immediately made available for another streaming or
     * non-streaming pull request. If the value is &lt; 0 (an error), the stream will
     * be aborted with status `INVALID_ARGUMENT`.
     * </pre>
     *
     * <code>repeated int32 modify_deadline_seconds = 3 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @param index The index of the element to return.
     * @return The modifyDeadlineSeconds at the given index.
     */
    public int getModifyDeadlineSeconds(int index) {
      return modifyDeadlineSeconds_.getInt(index);
    }

    /**
     *
     *
     * <pre>
     * Optional. The list of new ack deadlines for the IDs listed in
     * `modify_deadline_ack_ids`. The size of this list must be the same as the
     * size of `modify_deadline_ack_ids`. If it differs the stream will be aborted
     * with `INVALID_ARGUMENT`. Each element in this list is applied to the
     * element in the same position in `modify_deadline_ack_ids`. The new ack
     * deadline is with respect to the time this request was sent to the Pub/Sub
     * system. Must be &gt;= 0. For example, if the value is 10, the new ack deadline
     * will expire 10 seconds after this request is received. If the value is 0,
     * the message is immediately made available for another streaming or
     * non-streaming pull request. If the value is &lt; 0 (an error), the stream will
     * be aborted with status `INVALID_ARGUMENT`.
     * </pre>
     *
     * <code>repeated int32 modify_deadline_seconds = 3 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @param index The index to set the value at.
     * @param value The modifyDeadlineSeconds to set.
     * @return This builder for chaining.
     */
    public Builder setModifyDeadlineSeconds(int index, int value) {

      ensureModifyDeadlineSecondsIsMutable();
      modifyDeadlineSeconds_.setInt(index, value);
      bitField0_ |= 0x00000004;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. The list of new ack deadlines for the IDs listed in
     * `modify_deadline_ack_ids`. The size of this list must be the same as the
     * size of `modify_deadline_ack_ids`. If it differs the stream will be aborted
     * with `INVALID_ARGUMENT`. Each element in this list is applied to the
     * element in the same position in `modify_deadline_ack_ids`. The new ack
     * deadline is with respect to the time this request was sent to the Pub/Sub
     * system. Must be &gt;= 0. For example, if the value is 10, the new ack deadline
     * will expire 10 seconds after this request is received. If the value is 0,
     * the message is immediately made available for another streaming or
     * non-streaming pull request. If the value is &lt; 0 (an error), the stream will
     * be aborted with status `INVALID_ARGUMENT`.
     * </pre>
     *
     * <code>repeated int32 modify_deadline_seconds = 3 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @param value The modifyDeadlineSeconds to add.
     * @return This builder for chaining.
     */
    public Builder addModifyDeadlineSeconds(int value) {

      ensureModifyDeadlineSecondsIsMutable();
      modifyDeadlineSeconds_.addInt(value);
      bitField0_ |= 0x00000004;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. The list of new ack deadlines for the IDs listed in
     * `modify_deadline_ack_ids`. The size of this list must be the same as the
     * size of `modify_deadline_ack_ids`. If it differs the stream will be aborted
     * with `INVALID_ARGUMENT`. Each element in this list is applied to the
     * element in the same position in `modify_deadline_ack_ids`. The new ack
     * deadline is with respect to the time this request was sent to the Pub/Sub
     * system. Must be &gt;= 0. For example, if the value is 10, the new ack deadline
     * will expire 10 seconds after this request is received. If the value is 0,
     * the message is immediately made available for another streaming or
     * non-streaming pull request. If the value is &lt; 0 (an error), the stream will
     * be aborted with status `INVALID_ARGUMENT`.
     * </pre>
     *
     * <code>repeated int32 modify_deadline_seconds = 3 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @param values The modifyDeadlineSeconds to add.
     * @return This builder for chaining.
     */
    public Builder addAllModifyDeadlineSeconds(
        java.lang.Iterable<? extends java.lang.Integer> values) {
      ensureModifyDeadlineSecondsIsMutable();
      com.google.protobuf.AbstractMessageLite.Builder.addAll(values, modifyDeadlineSeconds_);
      bitField0_ |= 0x00000004;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. The list of new ack deadlines for the IDs listed in
     * `modify_deadline_ack_ids`. The size of this list must be the same as the
     * size of `modify_deadline_ack_ids`. If it differs the stream will be aborted
     * with `INVALID_ARGUMENT`. Each element in this list is applied to the
     * element in the same position in `modify_deadline_ack_ids`. The new ack
     * deadline is with respect to the time this request was sent to the Pub/Sub
     * system. Must be &gt;= 0. For example, if the value is 10, the new ack deadline
     * will expire 10 seconds after this request is received. If the value is 0,
     * the message is immediately made available for another streaming or
     * non-streaming pull request. If the value is &lt; 0 (an error), the stream will
     * be aborted with status `INVALID_ARGUMENT`.
     * </pre>
     *
     * <code>repeated int32 modify_deadline_seconds = 3 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @return This builder for chaining.
     */
    public Builder clearModifyDeadlineSeconds() {
      modifyDeadlineSeconds_ = emptyIntList();
      bitField0_ = (bitField0_ & ~0x00000004);
      onChanged();
      return this;
    }

    private com.google.protobuf.LazyStringArrayList modifyDeadlineAckIds_ =
        com.google.protobuf.LazyStringArrayList.emptyList();

    private void ensureModifyDeadlineAckIdsIsMutable() {
      if (!modifyDeadlineAckIds_.isModifiable()) {
        modifyDeadlineAckIds_ = new com.google.protobuf.LazyStringArrayList(modifyDeadlineAckIds_);
      }
      bitField0_ |= 0x00000008;
    }

    /**
     *
     *
     * <pre>
     * Optional. List of acknowledgment IDs whose deadline will be modified based
     * on the corresponding element in `modify_deadline_seconds`. This field can
     * be used to indicate that more time is needed to process a message by the
     * subscriber, or to make the message available for redelivery if the
     * processing was interrupted.
     * </pre>
     *
     * <code>repeated string modify_deadline_ack_ids = 4 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @return A list containing the modifyDeadlineAckIds.
     */
    public com.google.protobuf.ProtocolStringList getModifyDeadlineAckIdsList() {
      modifyDeadlineAckIds_.makeImmutable();
      return modifyDeadlineAckIds_;
    }

    /**
     *
     *
     * <pre>
     * Optional. List of acknowledgment IDs whose deadline will be modified based
     * on the corresponding element in `modify_deadline_seconds`. This field can
     * be used to indicate that more time is needed to process a message by the
     * subscriber, or to make the message available for redelivery if the
     * processing was interrupted.
     * </pre>
     *
     * <code>repeated string modify_deadline_ack_ids = 4 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @return The count of modifyDeadlineAckIds.
     */
    public int getModifyDeadlineAckIdsCount() {
      return modifyDeadlineAckIds_.size();
    }

    /**
     *
     *
     * <pre>
     * Optional. List of acknowledgment IDs whose deadline will be modified based
     * on the corresponding element in `modify_deadline_seconds`. This field can
     * be used to indicate that more time is needed to process a message by the
     * subscriber, or to make the message available for redelivery if the
     * processing was interrupted.
     * </pre>
     *
     * <code>repeated string modify_deadline_ack_ids = 4 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @param index The index of the element to return.
     * @return The modifyDeadlineAckIds at the given index.
     */
    public java.lang.String getModifyDeadlineAckIds(int index) {
      return modifyDeadlineAckIds_.get(index);
    }

    /**
     *
     *
     * <pre>
     * Optional. List of acknowledgment IDs whose deadline will be modified based
     * on the corresponding element in `modify_deadline_seconds`. This field can
     * be used to indicate that more time is needed to process a message by the
     * subscriber, or to make the message available for redelivery if the
     * processing was interrupted.
     * </pre>
     *
     * <code>repeated string modify_deadline_ack_ids = 4 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @param index The index of the value to return.
     * @return The bytes of the modifyDeadlineAckIds at the given index.
     */
    public com.google.protobuf.ByteString getModifyDeadlineAckIdsBytes(int index) {
      return modifyDeadlineAckIds_.getByteString(index);
    }

    /**
     *
     *
     * <pre>
     * Optional. List of acknowledgment IDs whose deadline will be modified based
     * on the corresponding element in `modify_deadline_seconds`. This field can
     * be used to indicate that more time is needed to process a message by the
     * subscriber, or to make the message available for redelivery if the
     * processing was interrupted.
     * </pre>
     *
     * <code>repeated string modify_deadline_ack_ids = 4 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @param index The index to set the value at.
     * @param value The modifyDeadlineAckIds to set.
     * @return This builder for chaining.
     */
    public Builder setModifyDeadlineAckIds(int index, java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      ensureModifyDeadlineAckIdsIsMutable();
      modifyDeadlineAckIds_.set(index, value);
      bitField0_ |= 0x00000008;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. List of acknowledgment IDs whose deadline will be modified based
     * on the corresponding element in `modify_deadline_seconds`. This field can
     * be used to indicate that more time is needed to process a message by the
     * subscriber, or to make the message available for redelivery if the
     * processing was interrupted.
     * </pre>
     *
     * <code>repeated string modify_deadline_ack_ids = 4 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @param value The modifyDeadlineAckIds to add.
     * @return This builder for chaining.
     */
    public Builder addModifyDeadlineAckIds(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      ensureModifyDeadlineAckIdsIsMutable();
      modifyDeadlineAckIds_.add(value);
      bitField0_ |= 0x00000008;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. List of acknowledgment IDs whose deadline will be modified based
     * on the corresponding element in `modify_deadline_seconds`. This field can
     * be used to indicate that more time is needed to process a message by the
     * subscriber, or to make the message available for redelivery if the
     * processing was interrupted.
     * </pre>
     *
     * <code>repeated string modify_deadline_ack_ids = 4 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @param values The modifyDeadlineAckIds to add.
     * @return This builder for chaining.
     */
    public Builder addAllModifyDeadlineAckIds(java.lang.Iterable<java.lang.String> values) {
      ensureModifyDeadlineAckIdsIsMutable();
      com.google.protobuf.AbstractMessageLite.Builder.addAll(values, modifyDeadlineAckIds_);
      bitField0_ |= 0x00000008;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. List of acknowledgment IDs whose deadline will be modified based
     * on the corresponding element in `modify_deadline_seconds`. This field can
     * be used to indicate that more time is needed to process a message by the
     * subscriber, or to make the message available for redelivery if the
     * processing was interrupted.
     * </pre>
     *
     * <code>repeated string modify_deadline_ack_ids = 4 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @return This builder for chaining.
     */
    public Builder clearModifyDeadlineAckIds() {
      modifyDeadlineAckIds_ = com.google.protobuf.LazyStringArrayList.emptyList();
      bitField0_ = (bitField0_ & ~0x00000008);
      ;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. List of acknowledgment IDs whose deadline will be modified based
     * on the corresponding element in `modify_deadline_seconds`. This field can
     * be used to indicate that more time is needed to process a message by the
     * subscriber, or to make the message available for redelivery if the
     * processing was interrupted.
     * </pre>
     *
     * <code>repeated string modify_deadline_ack_ids = 4 [(.google.api.field_behavior) = OPTIONAL];
     * </code>
     *
     * @param value The bytes of the modifyDeadlineAckIds to add.
     * @return This builder for chaining.
     */
    public Builder addModifyDeadlineAckIdsBytes(com.google.protobuf.ByteString value) {
      if (value == null) {
        throw new NullPointerException();
      }
      checkByteStringIsUtf8(value);
      ensureModifyDeadlineAckIdsIsMutable();
      modifyDeadlineAckIds_.add(value);
      bitField0_ |= 0x00000008;
      onChanged();
      return this;
    }

    private int streamAckDeadlineSeconds_;

    /**
     *
     *
     * <pre>
     * Required. The ack deadline to use for the stream. This must be provided in
     * the first request on the stream, but it can also be updated on subsequent
     * requests from client to server. The minimum deadline you can specify is 10
     * seconds. The maximum deadline you can specify is 600 seconds (10 minutes).
     * </pre>
     *
     * <code>int32 stream_ack_deadline_seconds = 5 [(.google.api.field_behavior) = REQUIRED];</code>
     *
     * @return The streamAckDeadlineSeconds.
     */
    @java.lang.Override
    public int getStreamAckDeadlineSeconds() {
      return streamAckDeadlineSeconds_;
    }

    /**
     *
     *
     * <pre>
     * Required. The ack deadline to use for the stream. This must be provided in
     * the first request on the stream, but it can also be updated on subsequent
     * requests from client to server. The minimum deadline you can specify is 10
     * seconds. The maximum deadline you can specify is 600 seconds (10 minutes).
     * </pre>
     *
     * <code>int32 stream_ack_deadline_seconds = 5 [(.google.api.field_behavior) = REQUIRED];</code>
     *
     * @param value The streamAckDeadlineSeconds to set.
     * @return This builder for chaining.
     */
    public Builder setStreamAckDeadlineSeconds(int value) {

      streamAckDeadlineSeconds_ = value;
      bitField0_ |= 0x00000010;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Required. The ack deadline to use for the stream. This must be provided in
     * the first request on the stream, but it can also be updated on subsequent
     * requests from client to server. The minimum deadline you can specify is 10
     * seconds. The maximum deadline you can specify is 600 seconds (10 minutes).
     * </pre>
     *
     * <code>int32 stream_ack_deadline_seconds = 5 [(.google.api.field_behavior) = REQUIRED];</code>
     *
     * @return This builder for chaining.
     */
    public Builder clearStreamAckDeadlineSeconds() {
      bitField0_ = (bitField0_ & ~0x00000010);
      streamAckDeadlineSeconds_ = 0;
      onChanged();
      return this;
    }

    private java.lang.Object clientId_ = "";

    /**
     *
     *
     * <pre>
     * Optional. A unique identifier that is used to distinguish client instances
     * from each other. Only needs to be provided on the initial request. When a
     * stream disconnects and reconnects for the same stream, the client_id should
     * be set to the same value so that state associated with the old stream can
     * be transferred to the new stream. The same client_id should not be used for
     * different client instances.
     * </pre>
     *
     * <code>string client_id = 6 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @return The clientId.
     */
    public java.lang.String getClientId() {
      java.lang.Object ref = clientId_;
      if (!(ref instanceof java.lang.String)) {
        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
        java.lang.String s = bs.toStringUtf8();
        clientId_ = s;
        return s;
      } else {
        return (java.lang.String) ref;
      }
    }

    /**
     *
     *
     * <pre>
     * Optional. A unique identifier that is used to distinguish client instances
     * from each other. Only needs to be provided on the initial request. When a
     * stream disconnects and reconnects for the same stream, the client_id should
     * be set to the same value so that state associated with the old stream can
     * be transferred to the new stream. The same client_id should not be used for
     * different client instances.
     * </pre>
     *
     * <code>string client_id = 6 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @return The bytes for clientId.
     */
    public com.google.protobuf.ByteString getClientIdBytes() {
      java.lang.Object ref = clientId_;
      if (ref instanceof String) {
        com.google.protobuf.ByteString b =
            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
        clientId_ = b;
        return b;
      } else {
        return (com.google.protobuf.ByteString) ref;
      }
    }

    /**
     *
     *
     * <pre>
     * Optional. A unique identifier that is used to distinguish client instances
     * from each other. Only needs to be provided on the initial request. When a
     * stream disconnects and reconnects for the same stream, the client_id should
     * be set to the same value so that state associated with the old stream can
     * be transferred to the new stream. The same client_id should not be used for
     * different client instances.
     * </pre>
     *
     * <code>string client_id = 6 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @param value The clientId to set.
     * @return This builder for chaining.
     */
    public Builder setClientId(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      clientId_ = value;
      bitField0_ |= 0x00000020;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. A unique identifier that is used to distinguish client instances
     * from each other. Only needs to be provided on the initial request. When a
     * stream disconnects and reconnects for the same stream, the client_id should
     * be set to the same value so that state associated with the old stream can
     * be transferred to the new stream. The same client_id should not be used for
     * different client instances.
     * </pre>
     *
     * <code>string client_id = 6 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @return This builder for chaining.
     */
    public Builder clearClientId() {
      clientId_ = getDefaultInstance().getClientId();
      bitField0_ = (bitField0_ & ~0x00000020);
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. A unique identifier that is used to distinguish client instances
     * from each other. Only needs to be provided on the initial request. When a
     * stream disconnects and reconnects for the same stream, the client_id should
     * be set to the same value so that state associated with the old stream can
     * be transferred to the new stream. The same client_id should not be used for
     * different client instances.
     * </pre>
     *
     * <code>string client_id = 6 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @param value The bytes for clientId to set.
     * @return This builder for chaining.
     */
    public Builder setClientIdBytes(com.google.protobuf.ByteString value) {
      if (value == null) {
        throw new NullPointerException();
      }
      checkByteStringIsUtf8(value);
      clientId_ = value;
      bitField0_ |= 0x00000020;
      onChanged();
      return this;
    }

    private long maxOutstandingMessages_;

    /**
     *
     *
     * <pre>
     * Optional. Flow control settings for the maximum number of outstanding
     * messages. When there are `max_outstanding_messages` currently sent to the
     * streaming pull client that have not yet been acked or nacked, the server
     * stops sending more messages. The sending of messages resumes once the
     * number of outstanding messages is less than this value. If the value is
     * &lt;= 0, there is no limit to the number of outstanding messages. This
     * property can only be set on the initial StreamingPullRequest. If it is set
     * on a subsequent request, the stream will be aborted with status
     * `INVALID_ARGUMENT`.
     * </pre>
     *
     * <code>int64 max_outstanding_messages = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @return The maxOutstandingMessages.
     */
    @java.lang.Override
    public long getMaxOutstandingMessages() {
      return maxOutstandingMessages_;
    }

    /**
     *
     *
     * <pre>
     * Optional. Flow control settings for the maximum number of outstanding
     * messages. When there are `max_outstanding_messages` currently sent to the
     * streaming pull client that have not yet been acked or nacked, the server
     * stops sending more messages. The sending of messages resumes once the
     * number of outstanding messages is less than this value. If the value is
     * &lt;= 0, there is no limit to the number of outstanding messages. This
     * property can only be set on the initial StreamingPullRequest. If it is set
     * on a subsequent request, the stream will be aborted with status
     * `INVALID_ARGUMENT`.
     * </pre>
     *
     * <code>int64 max_outstanding_messages = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @param value The maxOutstandingMessages to set.
     * @return This builder for chaining.
     */
    public Builder setMaxOutstandingMessages(long value) {

      maxOutstandingMessages_ = value;
      bitField0_ |= 0x00000040;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. Flow control settings for the maximum number of outstanding
     * messages. When there are `max_outstanding_messages` currently sent to the
     * streaming pull client that have not yet been acked or nacked, the server
     * stops sending more messages. The sending of messages resumes once the
     * number of outstanding messages is less than this value. If the value is
     * &lt;= 0, there is no limit to the number of outstanding messages. This
     * property can only be set on the initial StreamingPullRequest. If it is set
     * on a subsequent request, the stream will be aborted with status
     * `INVALID_ARGUMENT`.
     * </pre>
     *
     * <code>int64 max_outstanding_messages = 7 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @return This builder for chaining.
     */
    public Builder clearMaxOutstandingMessages() {
      bitField0_ = (bitField0_ & ~0x00000040);
      maxOutstandingMessages_ = 0L;
      onChanged();
      return this;
    }

    private long maxOutstandingBytes_;

    /**
     *
     *
     * <pre>
     * Optional. Flow control settings for the maximum number of outstanding
     * bytes. When there are `max_outstanding_bytes` or more worth of messages
     * currently sent to the streaming pull client that have not yet been acked or
     * nacked, the server will stop sending more messages. The sending of messages
     * resumes once the number of outstanding bytes is less than this value. If
     * the value is &lt;= 0, there is no limit to the number of outstanding bytes.
     * This property can only be set on the initial StreamingPullRequest. If it is
     * set on a subsequent request, the stream will be aborted with status
     * `INVALID_ARGUMENT`.
     * </pre>
     *
     * <code>int64 max_outstanding_bytes = 8 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @return The maxOutstandingBytes.
     */
    @java.lang.Override
    public long getMaxOutstandingBytes() {
      return maxOutstandingBytes_;
    }

    /**
     *
     *
     * <pre>
     * Optional. Flow control settings for the maximum number of outstanding
     * bytes. When there are `max_outstanding_bytes` or more worth of messages
     * currently sent to the streaming pull client that have not yet been acked or
     * nacked, the server will stop sending more messages. The sending of messages
     * resumes once the number of outstanding bytes is less than this value. If
     * the value is &lt;= 0, there is no limit to the number of outstanding bytes.
     * This property can only be set on the initial StreamingPullRequest. If it is
     * set on a subsequent request, the stream will be aborted with status
     * `INVALID_ARGUMENT`.
     * </pre>
     *
     * <code>int64 max_outstanding_bytes = 8 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @param value The maxOutstandingBytes to set.
     * @return This builder for chaining.
     */
    public Builder setMaxOutstandingBytes(long value) {

      maxOutstandingBytes_ = value;
      bitField0_ |= 0x00000080;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. Flow control settings for the maximum number of outstanding
     * bytes. When there are `max_outstanding_bytes` or more worth of messages
     * currently sent to the streaming pull client that have not yet been acked or
     * nacked, the server will stop sending more messages. The sending of messages
     * resumes once the number of outstanding bytes is less than this value. If
     * the value is &lt;= 0, there is no limit to the number of outstanding bytes.
     * This property can only be set on the initial StreamingPullRequest. If it is
     * set on a subsequent request, the stream will be aborted with status
     * `INVALID_ARGUMENT`.
     * </pre>
     *
     * <code>int64 max_outstanding_bytes = 8 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @return This builder for chaining.
     */
    public Builder clearMaxOutstandingBytes() {
      bitField0_ = (bitField0_ & ~0x00000080);
      maxOutstandingBytes_ = 0L;
      onChanged();
      return this;
    }

    private long protocolVersion_;

    /**
     *
     *
     * <pre>
     * Optional. The protocol version used by the client. This property can only
     * be set on the initial StreamingPullRequest. If it is set on a subsequent
     * request, the stream will be aborted with status `INVALID_ARGUMENT`.
     * </pre>
     *
     * <code>int64 protocol_version = 10 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @return The protocolVersion.
     */
    @java.lang.Override
    public long getProtocolVersion() {
      return protocolVersion_;
    }

    /**
     *
     *
     * <pre>
     * Optional. The protocol version used by the client. This property can only
     * be set on the initial StreamingPullRequest. If it is set on a subsequent
     * request, the stream will be aborted with status `INVALID_ARGUMENT`.
     * </pre>
     *
     * <code>int64 protocol_version = 10 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @param value The protocolVersion to set.
     * @return This builder for chaining.
     */
    public Builder setProtocolVersion(long value) {

      protocolVersion_ = value;
      bitField0_ |= 0x00000100;
      onChanged();
      return this;
    }

    /**
     *
     *
     * <pre>
     * Optional. The protocol version used by the client. This property can only
     * be set on the initial StreamingPullRequest. If it is set on a subsequent
     * request, the stream will be aborted with status `INVALID_ARGUMENT`.
     * </pre>
     *
     * <code>int64 protocol_version = 10 [(.google.api.field_behavior) = OPTIONAL];</code>
     *
     * @return This builder for chaining.
     */
    public Builder clearProtocolVersion() {
      bitField0_ = (bitField0_ & ~0x00000100);
      protocolVersion_ = 0L;
      onChanged();
      return this;
    }

    // @@protoc_insertion_point(builder_scope:google.pubsub.v1.StreamingPullRequest)
  }

  // @@protoc_insertion_point(class_scope:google.pubsub.v1.StreamingPullRequest)
  private static final com.google.pubsub.v1.StreamingPullRequest DEFAULT_INSTANCE;

  static {
    DEFAULT_INSTANCE = new com.google.pubsub.v1.StreamingPullRequest();
  }

  public static com.google.pubsub.v1.StreamingPullRequest getDefaultInstance() {
    return DEFAULT_INSTANCE;
  }

  private static final com.google.protobuf.Parser<StreamingPullRequest> PARSER =
      new com.google.protobuf.AbstractParser<StreamingPullRequest>() {
        @java.lang.Override
        public StreamingPullRequest parsePartialFrom(
            com.google.protobuf.CodedInputStream input,
            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
            throws com.google.protobuf.InvalidProtocolBufferException {
          Builder builder = newBuilder();
          try {
            builder.mergeFrom(input, extensionRegistry);
          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
            throw e.setUnfinishedMessage(builder.buildPartial());
          } catch (com.google.protobuf.UninitializedMessageException e) {
            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
          } catch (java.io.IOException e) {
            throw new com.google.protobuf.InvalidProtocolBufferException(e)
                .setUnfinishedMessage(builder.buildPartial());
          }
          return builder.buildPartial();
        }
      };

  public static com.google.protobuf.Parser<StreamingPullRequest> parser() {
    return PARSER;
  }

  @java.lang.Override
  public com.google.protobuf.Parser<StreamingPullRequest> getParserForType() {
    return PARSER;
  }

  @java.lang.Override
  public com.google.pubsub.v1.StreamingPullRequest getDefaultInstanceForType() {
    return DEFAULT_INSTANCE;
  }
}
