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SeekOp.java
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115 lines (108 loc) · 2.68 KB
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/*-
* #%L
* LmdbJava
* %%
* Copyright (C) 2016 - 2019 The LmdbJava Open Source Project
* %%
* 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
*
* http://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.
* #L%
*/
package org.lmdbjava;
/**
* Flags for use when performing a {@link Cursor#seek(org.lmdbjava.SeekOp)}.
*
* <p>
* Unlike most other LMDB enums, this enum is not bit masked.
*/
public enum SeekOp {
/**
* Position at first key/data item.
*/
MDB_FIRST(0),
/**
* Position at first data item of current key. Only for
* {@link DbiFlags#MDB_DUPSORT}.
*/
MDB_FIRST_DUP(1),
/**
* Position at key/data pair. Only for {@link DbiFlags#MDB_DUPSORT}.
*/
MDB_GET_BOTH(2),
/**
* position at key, nearest data. Only for {@link DbiFlags#MDB_DUPSORT}.
*/
MDB_GET_BOTH_RANGE(3),
/**
* Return key/data at current cursor position.
*/
MDB_GET_CURRENT(4),
/**
* Return key and up to a page of duplicate data items from current cursor
* position. Move cursor to prepare for {@link #MDB_NEXT_MULTIPLE}. Only for
* {@link DbiFlags#MDB_DUPSORT}.
*/
MDB_GET_MULTIPLE(5),
/**
* Position at last key/data item.
*/
MDB_LAST(6),
/**
* Position at last data item of current key. Only for
* {@link DbiFlags#MDB_DUPSORT}.
*/
MDB_LAST_DUP(7),
/**
* Position at next data item.
*/
MDB_NEXT(8),
/**
* Position at next data item of current key. Only for
* {@link DbiFlags#MDB_DUPSORT}.
*/
MDB_NEXT_DUP(9),
/**
* Return key and up to a page of duplicate data items from next cursor
* position. Move cursor to prepare for {@link #MDB_NEXT_MULTIPLE}. Only for
* {@link DbiFlags#MDB_DUPSORT}.
*/
MDB_NEXT_MULTIPLE(10),
/**
* Position at first data item of next key.
*/
MDB_NEXT_NODUP(11),
/**
* Position at previous data item.
*/
MDB_PREV(12),
/**
* Position at previous data item of current key.
* {@link DbiFlags#MDB_DUPSORT}.
*/
MDB_PREV_DUP(13),
/**
* Position at last data item of previous key.
*/
MDB_PREV_NODUP(14);
private final int code;
SeekOp(final int code) {
this.code = code;
}
/**
* Obtain the integer code for use by LMDB C API.
*
* @return the code
*/
public int getCode() {
return code;
}
}