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// 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;
/**
* The full set of metadata associated with each SST file.
*/
public class LiveFileMetaData extends SstFileMetaData {
private final byte[] columnFamilyName;
private final int level;
/**
* Called from JNI C++
*/
private LiveFileMetaData(final byte[] columnFamilyName, final int level, final String fileName,
final String path, final long size, final long smallestSeqno, final long largestSeqno,
final byte[] smallestKey, final byte[] largestKey, final long numReadsSampled,
final boolean beingCompacted, final long numEntries, final long numDeletions,
final byte[] fileChecksum) {
super(fileName, path, size, smallestSeqno, largestSeqno, smallestKey, largestKey,
numReadsSampled, beingCompacted, numEntries, numDeletions, fileChecksum);
this.columnFamilyName = columnFamilyName;
this.level = level;
}
/**
* Get the name of the column family.
*
* @return the name of the column family
*/
public byte[] columnFamilyName() {
return columnFamilyName;
}
/**
* Get the level at which this file resides.
*
* @return the level at which the file resides.
*/
public int level() {
return level;
}
public long newLiveFileMetaDataHandle() {
return newLiveFileMetaDataHandle(columnFamilyName(), columnFamilyName().length, level(),
fileName(), path(), size(), smallestSeqno(), largestSeqno(), smallestKey(),
smallestKey().length, largestKey(), largestKey().length, numReadsSampled(),
beingCompacted(), numEntries(), numDeletions());
}
private native long newLiveFileMetaDataHandle(final byte[] columnFamilyName,
final int columnFamilyNameLength, final int level, final String fileName, final String path,
final long size, final long smallestSeqno, final long largestSeqno, final byte[] smallestKey,
final int smallestKeyLength, final byte[] largestKey, final int largestKeyLength,
final long numReadsSampled, final boolean beingCompacted, final long numEntries,
final long numDeletions);
}
