// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.

// This source code is licensed under both the GPLv2 (found in the

// COPYING file in the root directory) and Apache 2.0 License

// (found in the LICENSE.Apache file in the root directory).

package org.rocksdb;

/**

* RocksDB {@link ReadOptions} read tiers.

*/

public enum ReadTier {

READ_ALL_TIER((byte)0),

BLOCK_CACHE_TIER((byte)1),

PERSISTED_TIER((byte)2);

private final byte value;

ReadTier(final byte value) {

this.value = value;

}

/**

* Returns the byte value of the enumerations value

*

* @return byte representation

*/

public byte getValue() {

return value;

}

/**

* Get ReadTier by byte value.

*

* @param value byte representation of ReadTier.

*

* @return {@link org.rocksdb.ReadTier} instance or null.

* @throws java.lang.IllegalArgumentException if an invalid

* value is provided.

*/

public static ReadTier getReadTier(final byte value) {

for (final ReadTier readTier : ReadTier.values()) {

if (readTier.getValue() == value){

return readTier;

}

}

throw new IllegalArgumentException("Illegal value provided for ReadTier.");

}

}