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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;
import java.nio.file.Paths;
import java.util.*;
/**
* ColumnFamilyOptions to control the behavior of a database. It will be used
* during the creation of a {@link org.rocksdb.RocksDB} (i.e., RocksDB.open()).
*
* As a descendant of {@link AbstractNativeReference}, this class is {@link AutoCloseable}
* and will be automatically released if opened in the preamble of a try with resources block.
*/
public class ColumnFamilyOptions
extends RocksObject implements ColumnFamilyOptionsInterface,
MutableColumnFamilyOptionsInterface {
/**
* Construct ColumnFamilyOptions.
*
* This constructor will create (by allocating a block of memory)
* an {@code rocksdb::ColumnFamilyOptions} in the c++ side.
*/
public ColumnFamilyOptions() {
super(newColumnFamilyOptionsInstance());
}
/**
* Copy constructor for ColumnFamilyOptions.
*
* NOTE: This does a shallow copy, which means comparator, merge_operator, compaction_filter,
* compaction_filter_factory and other pointers will be cloned!
*
* @param other The ColumnFamilyOptions to copy.
*/
public ColumnFamilyOptions(final ColumnFamilyOptions other) {
super(copyColumnFamilyOptions(other.nativeHandle_));
this.memTableConfig_ = other.memTableConfig_;
this.tableFormatConfig_ = other.tableFormatConfig_;
this.comparator_ = other.comparator_;
this.compactionFilter_ = other.compactionFilter_;
this.compactionFilterFactory_ = other.compactionFilterFactory_;
this.compactionOptionsUniversal_ = other.compactionOptionsUniversal_;
this.compactionOptionsFIFO_ = other.compactionOptionsFIFO_;
this.bottommostCompressionOptions_ = other.bottommostCompressionOptions_;
this.compressionOptions_ = other.compressionOptions_;
this.compactionThreadLimiter_ = other.compactionThreadLimiter_;
this.sstPartitionerFactory_ = other.sstPartitionerFactory_;
}
/**
* Constructor from Options
*
* @param options The options.
*/
public ColumnFamilyOptions(final Options options) {
super(newColumnFamilyOptionsFromOptions(options.nativeHandle_));
}
/**
*
Constructor to be used by
* {@link #getColumnFamilyOptionsFromProps(java.util.Properties)},
* {@link ColumnFamilyDescriptor#getOptions()}
* and also called via JNI.
*
* @param handle native handle to ColumnFamilyOptions instance.
*/
ColumnFamilyOptions(final long handle) {
super(handle);
}
/**
* Method to get a options instance by using pre-configured
* property values. If one or many values are undefined in
* the context of RocksDB the method will return a null
* value.
*
* Note: Property keys can be derived from
* getter methods within the options class. Example: the method
* {@code writeBufferSize()} has a property key:
* {@code write_buffer_size}.
*
* @param properties {@link java.util.Properties} instance.
*
* @return {@link org.rocksdb.ColumnFamilyOptions instance}
* or null.
*
* @throws java.lang.IllegalArgumentException if null or empty
* {@link Properties} instance is passed to the method call.
*/
public static ColumnFamilyOptions getColumnFamilyOptionsFromProps(
final Properties properties) {
ColumnFamilyOptions columnFamilyOptions = null;
final long handle =
getColumnFamilyOptionsFromProps(Options.getOptionStringFromProps(properties));
if (handle != 0) {
columnFamilyOptions = new ColumnFamilyOptions(handle);
}
return columnFamilyOptions;
}
/**
* Method to get a options instance by using pre-configured
* property values. If one or many values are undefined in
* the context of RocksDB the method will return a null
* value.
*
* Note: Property keys can be derived from
* getter methods within the options class. Example: the method
* {@code writeBufferSize()} has a property key:
* {@code write_buffer_size}.
*
* @param cfgOpts ConfigOptions controlling how the properties are parsed.
* @param properties {@link java.util.Properties} instance.
*
* @return {@link org.rocksdb.ColumnFamilyOptions instance}
* or null.
*
* @throws java.lang.IllegalArgumentException if null or empty
* {@link Properties} instance is passed to the method call.
*/
public static ColumnFamilyOptions getColumnFamilyOptionsFromProps(
final ConfigOptions cfgOpts, final Properties properties) {
ColumnFamilyOptions columnFamilyOptions = null;
final long handle = getColumnFamilyOptionsFromProps(
cfgOpts.nativeHandle_, Options.getOptionStringFromProps(properties));
if (handle != 0){
columnFamilyOptions = new ColumnFamilyOptions(handle);
}
return columnFamilyOptions;
}
@Override
public ColumnFamilyOptions oldDefaults(final int majorVersion, final int minorVersion) {
oldDefaults(nativeHandle_, majorVersion, minorVersion);
return this;
}
@Override
public ColumnFamilyOptions optimizeForSmallDb() {
optimizeForSmallDb(nativeHandle_);
return this;
}
@Override
public ColumnFamilyOptions optimizeForSmallDb(final Cache cache) {
optimizeForSmallDb(nativeHandle_, cache.getNativeHandle());
return this;
}
@Override
public ColumnFamilyOptions optimizeForPointLookup(
final long blockCacheSizeMb) {
optimizeForPointLookup(nativeHandle_,
blockCacheSizeMb);
return this;
}
@Override
public ColumnFamilyOptions optimizeLevelStyleCompaction() {
optimizeLevelStyleCompaction(nativeHandle_,
DEFAULT_COMPACTION_MEMTABLE_MEMORY_BUDGET);
return this;
}
@Override
public ColumnFamilyOptions optimizeLevelStyleCompaction(
final long memtableMemoryBudget) {
optimizeLevelStyleCompaction(nativeHandle_,
memtableMemoryBudget);
return this;
}
@Override
public ColumnFamilyOptions optimizeUniversalStyleCompaction() {
optimizeUniversalStyleCompaction(nativeHandle_,
DEFAULT_COMPACTION_MEMTABLE_MEMORY_BUDGET);
return this;
}
@Override
public ColumnFamilyOptions optimizeUniversalStyleCompaction(
final long memtableMemoryBudget) {
optimizeUniversalStyleCompaction(nativeHandle_,
memtableMemoryBudget);
return this;
}
@Override
public ColumnFamilyOptions setComparator(
final BuiltinComparator builtinComparator) {
assert(isOwningHandle());
setComparatorHandle(nativeHandle_, builtinComparator.ordinal());
return this;
}
@Override
public ColumnFamilyOptions setComparator(
final AbstractComparator comparator) {
assert (isOwningHandle());
setComparatorHandle(nativeHandle_, comparator.nativeHandle_,
comparator.getComparatorType().getValue());
comparator_ = comparator;
return this;
}
@Override
public ColumnFamilyOptions setMergeOperatorName(final String name) {
assert (isOwningHandle());
if (name == null) {
throw new IllegalArgumentException(
"Merge operator name must not be null.");
}
setMergeOperatorName(nativeHandle_, name);
return this;
}
@Override
public ColumnFamilyOptions setMergeOperator(
final MergeOperator mergeOperator) {
setMergeOperator(nativeHandle_, mergeOperator.nativeHandle_);
return this;
}
@Override
public ColumnFamilyOptions setCompactionFilter(
final AbstractCompactionFilter>
compactionFilter) {
setCompactionFilterHandle(nativeHandle_, compactionFilter.nativeHandle_);
compactionFilter_ = compactionFilter;
return this;
}
@Override
public AbstractCompactionFilter> compactionFilter() {
assert (isOwningHandle());
return compactionFilter_;
}
@Override
public ColumnFamilyOptions setCompactionFilterFactory(final AbstractCompactionFilterFactory> compactionFilterFactory) {
assert (isOwningHandle());
setCompactionFilterFactoryHandle(nativeHandle_, compactionFilterFactory.nativeHandle_);
compactionFilterFactory_ = compactionFilterFactory;
return this;
}
@Override
public AbstractCompactionFilterFactory> compactionFilterFactory() {
assert (isOwningHandle());
return compactionFilterFactory_;
}
@Override
public ColumnFamilyOptions setWriteBufferSize(final long writeBufferSize) {
assert(isOwningHandle());
setWriteBufferSize(nativeHandle_, writeBufferSize);
return this;
}
@Override
public long writeBufferSize() {
assert(isOwningHandle());
return writeBufferSize(nativeHandle_);
}
@Override
public ColumnFamilyOptions setMaxWriteBufferNumber(
final int maxWriteBufferNumber) {
assert(isOwningHandle());
setMaxWriteBufferNumber(nativeHandle_, maxWriteBufferNumber);
return this;
}
@Override
public int maxWriteBufferNumber() {
assert(isOwningHandle());
return maxWriteBufferNumber(nativeHandle_);
}
@Override
public ColumnFamilyOptions setMinWriteBufferNumberToMerge(
final int minWriteBufferNumberToMerge) {
setMinWriteBufferNumberToMerge(nativeHandle_, minWriteBufferNumberToMerge);
return this;
}
@Override
public int minWriteBufferNumberToMerge() {
return minWriteBufferNumberToMerge(nativeHandle_);
}
@Override
public ColumnFamilyOptions useFixedLengthPrefixExtractor(final int n) {
assert(isOwningHandle());
useFixedLengthPrefixExtractor(nativeHandle_, n);
return this;
}
@Override
public ColumnFamilyOptions useCappedPrefixExtractor(final int n) {
assert(isOwningHandle());
useCappedPrefixExtractor(nativeHandle_, n);
return this;
}
@Override
public ColumnFamilyOptions setCompressionType(
final CompressionType compressionType) {
setCompressionType(nativeHandle_, compressionType.getValue());
return this;
}
@Override
public CompressionType compressionType() {
return CompressionType.getCompressionType(compressionType(nativeHandle_));
}
@Override
public ColumnFamilyOptions setCompressionPerLevel(
final List compressionLevels) {
final byte[] byteCompressionTypes = new byte[
compressionLevels.size()];
for (int i = 0; i < compressionLevels.size(); i++) {
byteCompressionTypes[i] = compressionLevels.get(i).getValue();
}
setCompressionPerLevel(nativeHandle_, byteCompressionTypes);
return this;
}
@Override
public List compressionPerLevel() {
final byte[] byteCompressionTypes =
compressionPerLevel(nativeHandle_);
final List compressionLevels = new ArrayList<>();
for (final byte byteCompressionType : byteCompressionTypes) {
compressionLevels.add(CompressionType.getCompressionType(
byteCompressionType));
}
return compressionLevels;
}
@Override
public ColumnFamilyOptions setBottommostCompressionType(
final CompressionType bottommostCompressionType) {
setBottommostCompressionType(nativeHandle_,
bottommostCompressionType.getValue());
return this;
}
@Override
public CompressionType bottommostCompressionType() {
return CompressionType.getCompressionType(
bottommostCompressionType(nativeHandle_));
}
@Override
public ColumnFamilyOptions setBottommostCompressionOptions(
final CompressionOptions bottommostCompressionOptions) {
setBottommostCompressionOptions(nativeHandle_,
bottommostCompressionOptions.nativeHandle_);
this.bottommostCompressionOptions_ = bottommostCompressionOptions;
return this;
}
@Override
public CompressionOptions bottommostCompressionOptions() {
return this.bottommostCompressionOptions_;
}
@Override
public ColumnFamilyOptions setCompressionOptions(
final CompressionOptions compressionOptions) {
setCompressionOptions(nativeHandle_, compressionOptions.nativeHandle_);
this.compressionOptions_ = compressionOptions;
return this;
}
@Override
public CompressionOptions compressionOptions() {
return this.compressionOptions_;
}
@Override
public ColumnFamilyOptions setNumLevels(final int numLevels) {
setNumLevels(nativeHandle_, numLevels);
return this;
}
@Override
public int numLevels() {
return numLevels(nativeHandle_);
}
@Override
public ColumnFamilyOptions setLevelZeroFileNumCompactionTrigger(
final int numFiles) {
setLevelZeroFileNumCompactionTrigger(
nativeHandle_, numFiles);
return this;
}
@Override
public int levelZeroFileNumCompactionTrigger() {
return levelZeroFileNumCompactionTrigger(nativeHandle_);
}
@Override
public ColumnFamilyOptions setLevelZeroSlowdownWritesTrigger(
final int numFiles) {
setLevelZeroSlowdownWritesTrigger(nativeHandle_, numFiles);
return this;
}
@Override
public int levelZeroSlowdownWritesTrigger() {
return levelZeroSlowdownWritesTrigger(nativeHandle_);
}
@Override
public ColumnFamilyOptions setLevelZeroStopWritesTrigger(final int numFiles) {
setLevelZeroStopWritesTrigger(nativeHandle_, numFiles);
return this;
}
@Override
public int levelZeroStopWritesTrigger() {
return levelZeroStopWritesTrigger(nativeHandle_);
}
@Override
public ColumnFamilyOptions setTargetFileSizeBase(
final long targetFileSizeBase) {
setTargetFileSizeBase(nativeHandle_, targetFileSizeBase);
return this;
}
@Override
public long targetFileSizeBase() {
return targetFileSizeBase(nativeHandle_);
}
@Override
public ColumnFamilyOptions setTargetFileSizeMultiplier(
final int multiplier) {
setTargetFileSizeMultiplier(nativeHandle_, multiplier);
return this;
}
@Override
public int targetFileSizeMultiplier() {
return targetFileSizeMultiplier(nativeHandle_);
}
@Override
public ColumnFamilyOptions setMaxBytesForLevelBase(
final long maxBytesForLevelBase) {
setMaxBytesForLevelBase(nativeHandle_, maxBytesForLevelBase);
return this;
}
@Override
public long maxBytesForLevelBase() {
return maxBytesForLevelBase(nativeHandle_);
}
@Override
public ColumnFamilyOptions setLevelCompactionDynamicLevelBytes(
final boolean enableLevelCompactionDynamicLevelBytes) {
setLevelCompactionDynamicLevelBytes(nativeHandle_,
enableLevelCompactionDynamicLevelBytes);
return this;
}
@Override
public boolean levelCompactionDynamicLevelBytes() {
return levelCompactionDynamicLevelBytes(nativeHandle_);
}
@Override
public ColumnFamilyOptions setMaxBytesForLevelMultiplier(final double multiplier) {
setMaxBytesForLevelMultiplier(nativeHandle_, multiplier);
return this;
}
@Override
public double maxBytesForLevelMultiplier() {
return maxBytesForLevelMultiplier(nativeHandle_);
}
@Override
public ColumnFamilyOptions setMaxCompactionBytes(final long maxCompactionBytes) {
setMaxCompactionBytes(nativeHandle_, maxCompactionBytes);
return this;
}
@Override
public long maxCompactionBytes() {
return maxCompactionBytes(nativeHandle_);
}
@Override
public ColumnFamilyOptions setArenaBlockSize(
final long arenaBlockSize) {
setArenaBlockSize(nativeHandle_, arenaBlockSize);
return this;
}
@Override
public long arenaBlockSize() {
return arenaBlockSize(nativeHandle_);
}
@Override
public ColumnFamilyOptions setDisableAutoCompactions(
final boolean disableAutoCompactions) {
setDisableAutoCompactions(nativeHandle_, disableAutoCompactions);
return this;
}
@Override
public boolean disableAutoCompactions() {
return disableAutoCompactions(nativeHandle_);
}
@Override
public ColumnFamilyOptions setCompactionStyle(
final CompactionStyle compactionStyle) {
setCompactionStyle(nativeHandle_, compactionStyle.getValue());
return this;
}
@Override
public CompactionStyle compactionStyle() {
return CompactionStyle.fromValue(compactionStyle(nativeHandle_));
}
@Override
public ColumnFamilyOptions setMaxTableFilesSizeFIFO(
final long maxTableFilesSize) {
assert(maxTableFilesSize > 0); // unsigned native type
assert(isOwningHandle());
setMaxTableFilesSizeFIFO(nativeHandle_, maxTableFilesSize);
return this;
}
@Override
public long maxTableFilesSizeFIFO() {
return maxTableFilesSizeFIFO(nativeHandle_);
}
@Override
public ColumnFamilyOptions setMaxSequentialSkipInIterations(
final long maxSequentialSkipInIterations) {
setMaxSequentialSkipInIterations(nativeHandle_,
maxSequentialSkipInIterations);
return this;
}
@Override
public long maxSequentialSkipInIterations() {
return maxSequentialSkipInIterations(nativeHandle_);
}
@Override
public MemTableConfig memTableConfig() {
return this.memTableConfig_;
}
@Override
public ColumnFamilyOptions setMemTableConfig(
final MemTableConfig memTableConfig) {
setMemTableFactory(
nativeHandle_, memTableConfig.newMemTableFactoryHandle());
this.memTableConfig_ = memTableConfig;
return this;
}
@Override
public String memTableFactoryName() {
assert(isOwningHandle());
return memTableFactoryName(nativeHandle_);
}
@Override
public TableFormatConfig tableFormatConfig() {
return this.tableFormatConfig_;
}
@Override
public ColumnFamilyOptions setTableFormatConfig(
final TableFormatConfig tableFormatConfig) {
setTableFactory(nativeHandle_, tableFormatConfig.newTableFactoryHandle());
this.tableFormatConfig_ = tableFormatConfig;
return this;
}
void setFetchedTableFormatConfig(final TableFormatConfig tableFormatConfig) {
this.tableFormatConfig_ = tableFormatConfig;
}
@Override
public String tableFactoryName() {
assert(isOwningHandle());
return tableFactoryName(nativeHandle_);
}
@Override
public ColumnFamilyOptions setCfPaths(final Collection cfPaths) {
assert (isOwningHandle());
final int len = cfPaths.size();
final String[] paths = new String[len];
final long[] targetSizes = new long[len];
int i = 0;
for (final DbPath dbPath : cfPaths) {
paths[i] = dbPath.path.toString();
targetSizes[i] = dbPath.targetSize;
i++;
}
setCfPaths(nativeHandle_, paths, targetSizes);
return this;
}
@Override
public List cfPaths() {
final int len = (int) cfPathsLen(nativeHandle_);
if (len == 0) {
return Collections.emptyList();
}
final String[] paths = new String[len];
final long[] targetSizes = new long[len];
cfPaths(nativeHandle_, paths, targetSizes);
final List cfPaths = new ArrayList<>();
for (int i = 0; i < len; i++) {
cfPaths.add(new DbPath(Paths.get(paths[i]), targetSizes[i]));
}
return cfPaths;
}
@Override
public ColumnFamilyOptions setInplaceUpdateSupport(
final boolean inplaceUpdateSupport) {
setInplaceUpdateSupport(nativeHandle_, inplaceUpdateSupport);
return this;
}
@Override
public boolean inplaceUpdateSupport() {
return inplaceUpdateSupport(nativeHandle_);
}
@Override
public ColumnFamilyOptions setInplaceUpdateNumLocks(
final long inplaceUpdateNumLocks) {
setInplaceUpdateNumLocks(nativeHandle_, inplaceUpdateNumLocks);
return this;
}
@Override
public long inplaceUpdateNumLocks() {
return inplaceUpdateNumLocks(nativeHandle_);
}
@Override
public ColumnFamilyOptions setMemtablePrefixBloomSizeRatio(
final double memtablePrefixBloomSizeRatio) {
setMemtablePrefixBloomSizeRatio(nativeHandle_, memtablePrefixBloomSizeRatio);
return this;
}
@Override
public double memtablePrefixBloomSizeRatio() {
return memtablePrefixBloomSizeRatio(nativeHandle_);
}
@Override
public ColumnFamilyOptions setExperimentalMempurgeThreshold(
final double experimentalMempurgeThreshold) {
setExperimentalMempurgeThreshold(nativeHandle_, experimentalMempurgeThreshold);
return this;
}
@Override
public double experimentalMempurgeThreshold() {
return experimentalMempurgeThreshold(nativeHandle_);
}
@Override
public ColumnFamilyOptions setMemtableWholeKeyFiltering(final boolean memtableWholeKeyFiltering) {
setMemtableWholeKeyFiltering(nativeHandle_, memtableWholeKeyFiltering);
return this;
}
@Override
public boolean memtableWholeKeyFiltering() {
return memtableWholeKeyFiltering(nativeHandle_);
}
@Override
public ColumnFamilyOptions setBloomLocality(final int bloomLocality) {
setBloomLocality(nativeHandle_, bloomLocality);
return this;
}
@Override
public int bloomLocality() {
return bloomLocality(nativeHandle_);
}
@Override
public ColumnFamilyOptions setMaxSuccessiveMerges(
final long maxSuccessiveMerges) {
setMaxSuccessiveMerges(nativeHandle_, maxSuccessiveMerges);
return this;
}
@Override
public long maxSuccessiveMerges() {
return maxSuccessiveMerges(nativeHandle_);
}
@Override
public ColumnFamilyOptions setOptimizeFiltersForHits(
final boolean optimizeFiltersForHits) {
setOptimizeFiltersForHits(nativeHandle_, optimizeFiltersForHits);
return this;
}
@Override
public boolean optimizeFiltersForHits() {
return optimizeFiltersForHits(nativeHandle_);
}
@Override
public ColumnFamilyOptions setMemtableHugePageSize(final long memtableHugePageSize) {
setMemtableHugePageSize(nativeHandle_,
memtableHugePageSize);
return this;
}
@Override
public long memtableHugePageSize() {
return memtableHugePageSize(nativeHandle_);
}
@Override
public ColumnFamilyOptions setSoftPendingCompactionBytesLimit(
final long softPendingCompactionBytesLimit) {
setSoftPendingCompactionBytesLimit(nativeHandle_,
softPendingCompactionBytesLimit);
return this;
}
@Override
public long softPendingCompactionBytesLimit() {
return softPendingCompactionBytesLimit(nativeHandle_);
}
@Override
public ColumnFamilyOptions setHardPendingCompactionBytesLimit(
final long hardPendingCompactionBytesLimit) {
setHardPendingCompactionBytesLimit(nativeHandle_, hardPendingCompactionBytesLimit);
return this;
}
@Override
public long hardPendingCompactionBytesLimit() {
return hardPendingCompactionBytesLimit(nativeHandle_);
}
@Override
public ColumnFamilyOptions setLevel0FileNumCompactionTrigger(
final int level0FileNumCompactionTrigger) {
setLevel0FileNumCompactionTrigger(nativeHandle_, level0FileNumCompactionTrigger);
return this;
}
@Override
public int level0FileNumCompactionTrigger() {
return level0FileNumCompactionTrigger(nativeHandle_);
}
@Override
public ColumnFamilyOptions setLevel0SlowdownWritesTrigger(final int level0SlowdownWritesTrigger) {
setLevel0SlowdownWritesTrigger(nativeHandle_, level0SlowdownWritesTrigger);
return this;
}
@Override
public int level0SlowdownWritesTrigger() {
return level0SlowdownWritesTrigger(nativeHandle_);
}
@Override
public ColumnFamilyOptions setLevel0StopWritesTrigger(final int level0StopWritesTrigger) {
setLevel0StopWritesTrigger(nativeHandle_, level0StopWritesTrigger);
return this;
}
@Override
public int level0StopWritesTrigger() {
return level0StopWritesTrigger(nativeHandle_);
}
@Override
public ColumnFamilyOptions setMaxBytesForLevelMultiplierAdditional(
final int[] maxBytesForLevelMultiplierAdditional) {
setMaxBytesForLevelMultiplierAdditional(nativeHandle_, maxBytesForLevelMultiplierAdditional);
return this;
}
@Override
public int[] maxBytesForLevelMultiplierAdditional() {
return maxBytesForLevelMultiplierAdditional(nativeHandle_);
}
@Override
public ColumnFamilyOptions setParanoidFileChecks(final boolean paranoidFileChecks) {
setParanoidFileChecks(nativeHandle_, paranoidFileChecks);
return this;
}
@Override
public boolean paranoidFileChecks() {
return paranoidFileChecks(nativeHandle_);
}
@Override
public ColumnFamilyOptions setMaxWriteBufferNumberToMaintain(
final int maxWriteBufferNumberToMaintain) {
setMaxWriteBufferNumberToMaintain(
nativeHandle_, maxWriteBufferNumberToMaintain);
return this;
}
@Override
public int maxWriteBufferNumberToMaintain() {
return maxWriteBufferNumberToMaintain(nativeHandle_);
}
@Override
public ColumnFamilyOptions setCompactionPriority(
final CompactionPriority compactionPriority) {
setCompactionPriority(nativeHandle_, compactionPriority.getValue());
return this;
}
@Override
public CompactionPriority compactionPriority() {
return CompactionPriority.getCompactionPriority(
compactionPriority(nativeHandle_));
}
@Override
public ColumnFamilyOptions setReportBgIoStats(final boolean reportBgIoStats) {
setReportBgIoStats(nativeHandle_, reportBgIoStats);
return this;
}
@Override
public boolean reportBgIoStats() {
return reportBgIoStats(nativeHandle_);
}
@Override
public ColumnFamilyOptions setTtl(final long ttl) {
setTtl(nativeHandle_, ttl);
return this;
}
@Override
public long ttl() {
return ttl(nativeHandle_);
}
@Override
public ColumnFamilyOptions setPeriodicCompactionSeconds(final long periodicCompactionSeconds) {
setPeriodicCompactionSeconds(nativeHandle_, periodicCompactionSeconds);
return this;
}
@Override
public long periodicCompactionSeconds() {
return periodicCompactionSeconds(nativeHandle_);
}
@Override
public ColumnFamilyOptions setCompactionOptionsUniversal(
final CompactionOptionsUniversal compactionOptionsUniversal) {
setCompactionOptionsUniversal(nativeHandle_,
compactionOptionsUniversal.nativeHandle_);
this.compactionOptionsUniversal_ = compactionOptionsUniversal;
return this;
}
@Override
public CompactionOptionsUniversal compactionOptionsUniversal() {
return this.compactionOptionsUniversal_;
}
@Override
public ColumnFamilyOptions setCompactionOptionsFIFO(final CompactionOptionsFIFO compactionOptionsFIFO) {
setCompactionOptionsFIFO(nativeHandle_,
compactionOptionsFIFO.nativeHandle_);
this.compactionOptionsFIFO_ = compactionOptionsFIFO;
return this;
}
@Override
public CompactionOptionsFIFO compactionOptionsFIFO() {
return this.compactionOptionsFIFO_;
}
@Override
public ColumnFamilyOptions setForceConsistencyChecks(final boolean forceConsistencyChecks) {
setForceConsistencyChecks(nativeHandle_, forceConsistencyChecks);
return this;
}
@Override
public boolean forceConsistencyChecks() {
return forceConsistencyChecks(nativeHandle_);
}
@Override
public ColumnFamilyOptions setSstPartitionerFactory(
final SstPartitionerFactory sstPartitionerFactory) {
setSstPartitionerFactory(nativeHandle_, sstPartitionerFactory.nativeHandle_);
this.sstPartitionerFactory_ = sstPartitionerFactory;
return this;
}
@Override
public ColumnFamilyOptions setCompactionThreadLimiter(
final ConcurrentTaskLimiter compactionThreadLimiter) {
setCompactionThreadLimiter(nativeHandle_, compactionThreadLimiter.nativeHandle_);
this.compactionThreadLimiter_ = compactionThreadLimiter;
return this;
}
@Override
public ConcurrentTaskLimiter compactionThreadLimiter() {
assert (isOwningHandle());
return this.compactionThreadLimiter_;
}
@Override
public SstPartitionerFactory sstPartitionerFactory() {
return sstPartitionerFactory_;
}
@Override
public ColumnFamilyOptions setMemtableMaxRangeDeletions(final int count) {
setMemtableMaxRangeDeletions(nativeHandle_, count);
return this;
}
@Override
public int memtableMaxRangeDeletions() {
return memtableMaxRangeDeletions(nativeHandle_);
}
//
// BEGIN options for blobs (integrated BlobDB)
//
/**
* When set, large values (blobs) are written to separate blob files, and only
* pointers to them are stored in SST files. This can reduce write amplification
* for large-value use cases at the cost of introducing a level of indirection
* for reads. See also the options min_blob_size, blob_file_size,
* blob_compression_type, enable_blob_garbage_collection, and
* blob_garbage_collection_age_cutoff below.
*
* Default: false
*
* Dynamically changeable through
* {@link RocksDB#setOptions(ColumnFamilyHandle, MutableColumnFamilyOptions)}.
*
* @param enableBlobFiles true iff blob files should be enabled
*
* @return the reference to the current options.
*/
@Override
public ColumnFamilyOptions setEnableBlobFiles(final boolean enableBlobFiles) {
setEnableBlobFiles(nativeHandle_, enableBlobFiles);
return this;
}
/**
* When set, large values (blobs) are written to separate blob files, and only
* pointers to them are stored in SST files. This can reduce write amplification
* for large-value use cases at the cost of introducing a level of indirection
* for reads. See also the options min_blob_size, blob_file_size,
* blob_compression_type, enable_blob_garbage_collection, and
* blob_garbage_collection_age_cutoff below.
*
* Default: false
*
* Dynamically changeable through
* {@link RocksDB#setOptions(ColumnFamilyHandle, MutableColumnFamilyOptions)}.
*
* @return true iff blob files are currently enabled
*/
@Override
public boolean enableBlobFiles() {
return enableBlobFiles(nativeHandle_);
}
/**
* Set the size of the smallest value to be stored separately in a blob file. Values
* which have an uncompressed size smaller than this threshold are stored
* alongside the keys in SST files in the usual fashion. A value of zero for
* this option means that all values are stored in blob files. Note that
* enable_blob_files has to be set in order for this option to have any effect.
*
* Default: 0
*
* Dynamically changeable through
* {@link RocksDB#setOptions(ColumnFamilyHandle, MutableColumnFamilyOptions)}.
*
* @param minBlobSize the size of the smallest value to be stored separately in a blob file
* @return these options, updated with the supplied minimum blob size value
*/
@Override
public ColumnFamilyOptions setMinBlobSize(final long minBlobSize) {
setMinBlobSize(nativeHandle_, minBlobSize);
return this;
}
/**
* Get the size of the smallest value to be stored separately in a blob file. Values
* which have an uncompressed size smaller than this threshold are stored
* alongside the keys in SST files in the usual fashion. A value of zero for
* this option means that all values are stored in blob files. Note that
* enable_blob_files has to be set in order for this option to have any effect.
*
* Default: 0
*
* Dynamically changeable through
* {@link RocksDB#setOptions(ColumnFamilyHandle, MutableColumnFamilyOptions)}.
*
* @return the current minimum blob size
*/
@Override
public long minBlobSize() {
return minBlobSize(nativeHandle_);
}
/**
* Set the size limit for blob files. When writing blob files, a new file is opened
* once this limit is reached. Note that enable_blob_files has to be set in
* order for this option to have any effect.
*
* Default: 256 MB
*
* Dynamically changeable through
* {@link RocksDB#setOptions(ColumnFamilyHandle, MutableColumnFamilyOptions)}.
*
* @param blobFileSize the new size limit for blob files
*
* @return the reference to the current options.
*/
@Override
public ColumnFamilyOptions setBlobFileSize(final long blobFileSize) {
setBlobFileSize(nativeHandle_, blobFileSize);
return this;
}
/**
* Get the size limit for blob files. When writing blob files, a new file is opened
* once this limit is reached. Note that enable_blob_files has to be set in
* order for this option to have any effect.
*
* Default: 256 MB
*
* Dynamically changeable through
* {@link RocksDB#setOptions(ColumnFamilyHandle, MutableColumnFamilyOptions)}.
*
* @return the size limit for blob files
*/
@Override
public long blobFileSize() {
return blobFileSize(nativeHandle_);
}
/**
* Set the compression algorithm to use for large values stored in blob files. Note
* that enable_blob_files has to be set in order for this option to have any
* effect.
*
* Default: no compression
*
* Dynamically changeable through
* {@link RocksDB#setOptions(ColumnFamilyHandle, MutableColumnFamilyOptions)}.
*
* @param compressionType the compression algorithm to use
*
* @return the reference to the current options.
*/
@Override
public ColumnFamilyOptions setBlobCompressionType(final CompressionType compressionType) {
setBlobCompressionType(nativeHandle_, compressionType.getValue());
return this;
}
/**
* Get the compression algorithm to use for large values stored in blob files. Note
* that enable_blob_files has to be set in order for this option to have any
* effect.
*
* Default: no compression
*
* Dynamically changeable through
* {@link RocksDB#setOptions(ColumnFamilyHandle, MutableColumnFamilyOptions)}.
*
* @return the compression algorithm currently in use for blobs
*/
@Override
public CompressionType blobCompressionType() {
return CompressionType.values()[blobCompressionType(nativeHandle_)];
}
/**
* Enable/disable garbage collection of blobs. Blob GC is performed as part of
* compaction. Valid blobs residing in blob files older than a cutoff get
* relocated to new files as they are encountered during compaction, which makes
* it possible to clean up blob files once they contain nothing but
* obsolete/garbage blobs. See also blob_garbage_collection_age_cutoff below.
*
* Default: false
*
* @param enableBlobGarbageCollection true iff blob garbage collection is to be enabled
*
* @return the reference to the current options.
*/
@Override
public ColumnFamilyOptions setEnableBlobGarbageCollection(
final boolean enableBlobGarbageCollection) {
setEnableBlobGarbageCollection(nativeHandle_, enableBlobGarbageCollection);
return this;
}
/**
* Get enabled/disables state for garbage collection of blobs. Blob GC is performed as part of
* compaction. Valid blobs residing in blob files older than a cutoff get
* relocated to new files as they are encountered during compaction, which makes
* it possible to clean up blob files once they contain nothing but
* obsolete/garbage blobs. See also blob_garbage_collection_age_cutoff below.
*
* Default: false
*
* @return true iff blob garbage collection is currently enabled
*/
@Override
public boolean enableBlobGarbageCollection() {
return enableBlobGarbageCollection(nativeHandle_);
}
/**
* Set the cutoff in terms of blob file age for garbage collection. Blobs in the
* oldest N blob files will be relocated when encountered during compaction,
* where N = garbage_collection_cutoff * number_of_blob_files. Note that
* enable_blob_garbage_collection has to be set in order for this option to have
* any effect.
*
* Default: 0.25
*
* @param blobGarbageCollectionAgeCutoff the new blob garbage collection age cutoff
*
* @return the reference to the current options.
*/
@Override
public ColumnFamilyOptions setBlobGarbageCollectionAgeCutoff(
final double blobGarbageCollectionAgeCutoff) {
setBlobGarbageCollectionAgeCutoff(nativeHandle_, blobGarbageCollectionAgeCutoff);
return this;
}
/**
* Get the cutoff in terms of blob file age for garbage collection. Blobs in the
* oldest N blob files will be relocated when encountered during compaction,
* where N = garbage_collection_cutoff * number_of_blob_files. Note that
* enable_blob_garbage_collection has to be set in order for this option to have
* any effect.
*
* Default: 0.25
*
* @return the current blob garbage collection age cutoff
*/
@Override
public double blobGarbageCollectionAgeCutoff() {
return blobGarbageCollectionAgeCutoff(nativeHandle_);
}
/**
* If the ratio of garbage in the oldest blob files exceeds this threshold,
* targeted compactions are scheduled in order to force garbage collecting
* the blob files in question, assuming they are all eligible based on the
* value of {@link #blobGarbageCollectionAgeCutoff} above. This option is
* currently only supported with leveled compactions.
*
* Note that {@link #enableBlobGarbageCollection} has to be set in order for this
* option to have any effect.
*
* Default: 1.0
*
* Dynamically changeable through the SetOptions() API
*
* @param blobGarbageCollectionForceThreshold new value for the threshold
* @return the reference to the current options
*/
@Override
public ColumnFamilyOptions setBlobGarbageCollectionForceThreshold(
final double blobGarbageCollectionForceThreshold) {
setBlobGarbageCollectionForceThreshold(nativeHandle_, blobGarbageCollectionForceThreshold);
return this;
}
/**
* Get the current value for the {@link #blobGarbageCollectionForceThreshold}
* @return the current threshold at which garbage collection of blobs is forced
*/
@Override
public double blobGarbageCollectionForceThreshold() {
return blobGarbageCollectionForceThreshold(nativeHandle_);
}
/**
* Set compaction readahead for blob files.
*
* Default: 0
*
* Dynamically changeable through
* {@link RocksDB#setOptions(ColumnFamilyHandle, MutableColumnFamilyOptions)}.
*
* @param blobCompactionReadaheadSize the compaction readahead for blob files
*
* @return the reference to the current options.
*/
@Override
public ColumnFamilyOptions setBlobCompactionReadaheadSize(
final long blobCompactionReadaheadSize) {
setBlobCompactionReadaheadSize(nativeHandle_, blobCompactionReadaheadSize);
return this;
}
/**
* Get compaction readahead for blob files.
*
* @return the current compaction readahead for blob files
*/
@Override
public long blobCompactionReadaheadSize() {
return blobCompactionReadaheadSize(nativeHandle_);
}
/**
* Set a certain LSM tree level to enable blob files.
*
* Default: 0
*
* Dynamically changeable through
* {@link RocksDB#setOptions(ColumnFamilyHandle, MutableColumnFamilyOptions)}.
*
* @param blobFileStartingLevel the starting level to enable blob files
*
* @return the reference to the current options.
*/
@Override
public ColumnFamilyOptions setBlobFileStartingLevel(final int blobFileStartingLevel) {
setBlobFileStartingLevel(nativeHandle_, blobFileStartingLevel);
return this;
}
/**
* Get the starting LSM tree level to enable blob files.
*
* Default: 0
*
* @return the current LSM tree level to enable blob files.
*/
@Override
public int blobFileStartingLevel() {
return blobFileStartingLevel(nativeHandle_);
}
/**
* Set a certain prepopulate blob cache option.
*
* Default: 0
*
* Dynamically changeable through
* {@link RocksDB#setOptions(ColumnFamilyHandle, MutableColumnFamilyOptions)}.
*
* @param prepopulateBlobCache prepopulate the blob cache option
*
* @return the reference to the current options.
*/
@Override
public ColumnFamilyOptions setPrepopulateBlobCache(
final PrepopulateBlobCache prepopulateBlobCache) {
setPrepopulateBlobCache(nativeHandle_, prepopulateBlobCache.getValue());
return this;
}
/**
* Get the prepopulate blob cache option.
*
* Default: 0
*
* @return the current prepopulate blob cache option.
*/
@Override
public PrepopulateBlobCache prepopulateBlobCache() {
return PrepopulateBlobCache.getPrepopulateBlobCache(prepopulateBlobCache(nativeHandle_));
}
//
// END options for blobs (integrated BlobDB)
//
private static native long getColumnFamilyOptionsFromProps(
final long cfgHandle, String optString);
private static native long getColumnFamilyOptionsFromProps(final String optString);
private static long newColumnFamilyOptionsInstance() {
RocksDB.loadLibrary();
return newColumnFamilyOptions();
}
private static native long newColumnFamilyOptions();
private static native long copyColumnFamilyOptions(final long handle);
private static native long newColumnFamilyOptionsFromOptions(
final long optionsHandle);
@Override protected final native void disposeInternal(final long handle);
private static native void oldDefaults(
final long handle, final int majorVersion, final int minorVersion);
private native void optimizeForSmallDb(final long handle);
private static native void optimizeForSmallDb(final long handle, final long cacheHandle);
private native void optimizeForPointLookup(long handle,
long blockCacheSizeMb);
private native void optimizeLevelStyleCompaction(long handle,
long memtableMemoryBudget);
private native void optimizeUniversalStyleCompaction(long handle,
long memtableMemoryBudget);
private native void setComparatorHandle(long handle, int builtinComparator);
private native void setComparatorHandle(long optHandle,
long comparatorHandle, byte comparatorType);
private native void setMergeOperatorName(long handle, String name);
private native void setMergeOperator(long handle, long mergeOperatorHandle);
private native void setCompactionFilterHandle(long handle,
long compactionFilterHandle);
private native void setCompactionFilterFactoryHandle(long handle,
long compactionFilterFactoryHandle);
private native void setWriteBufferSize(long handle, long writeBufferSize)
throws IllegalArgumentException;
private native long writeBufferSize(long handle);
private native void setMaxWriteBufferNumber(
long handle, int maxWriteBufferNumber);
private native int maxWriteBufferNumber(long handle);
private native void setMinWriteBufferNumberToMerge(
long handle, int minWriteBufferNumberToMerge);
private native int minWriteBufferNumberToMerge(long handle);
private native void setCompressionType(long handle, byte compressionType);
private native byte compressionType(long handle);
private native void setCompressionPerLevel(long handle,
byte[] compressionLevels);
private native byte[] compressionPerLevel(long handle);
private native void setBottommostCompressionType(long handle,
byte bottommostCompressionType);
private native byte bottommostCompressionType(long handle);
private native void setBottommostCompressionOptions(final long handle,
final long bottommostCompressionOptionsHandle);
private native void setCompressionOptions(long handle,
long compressionOptionsHandle);
private native void useFixedLengthPrefixExtractor(
long handle, int prefixLength);
private native void useCappedPrefixExtractor(
long handle, int prefixLength);
private native void setNumLevels(
long handle, int numLevels);
private native int numLevels(long handle);
private native void setLevelZeroFileNumCompactionTrigger(
long handle, int numFiles);
private native int levelZeroFileNumCompactionTrigger(long handle);
private native void setLevelZeroSlowdownWritesTrigger(
long handle, int numFiles);
private native int levelZeroSlowdownWritesTrigger(long handle);
private native void setLevelZeroStopWritesTrigger(
long handle, int numFiles);
private native int levelZeroStopWritesTrigger(long handle);
private native void setTargetFileSizeBase(
long handle, long targetFileSizeBase);
private native long targetFileSizeBase(long handle);
private native void setTargetFileSizeMultiplier(
long handle, int multiplier);
private native int targetFileSizeMultiplier(long handle);
private native void setMaxBytesForLevelBase(
long handle, long maxBytesForLevelBase);
private native long maxBytesForLevelBase(long handle);
private native void setLevelCompactionDynamicLevelBytes(
long handle, boolean enableLevelCompactionDynamicLevelBytes);
private native boolean levelCompactionDynamicLevelBytes(
long handle);
private native void setMaxBytesForLevelMultiplier(long handle, double multiplier);
private native double maxBytesForLevelMultiplier(long handle);
private native void setMaxCompactionBytes(long handle, long maxCompactionBytes);
private native long maxCompactionBytes(long handle);
private native void setArenaBlockSize(
long handle, long arenaBlockSize)
throws IllegalArgumentException;
private native long arenaBlockSize(long handle);
private native void setDisableAutoCompactions(
long handle, boolean disableAutoCompactions);
private native boolean disableAutoCompactions(long handle);
private native void setCompactionStyle(long handle, byte compactionStyle);
private native byte compactionStyle(long handle);
private native void setMaxTableFilesSizeFIFO(
long handle, long max_table_files_size);
private native long maxTableFilesSizeFIFO(long handle);
private native void setMaxSequentialSkipInIterations(
long handle, long maxSequentialSkipInIterations);
private native long maxSequentialSkipInIterations(long handle);
private native void setMemTableFactory(long handle, long factoryHandle);
private native String memTableFactoryName(long handle);
private native void setTableFactory(long handle, long factoryHandle);
private native String tableFactoryName(long handle);
private static native void setCfPaths(
final long handle, final String[] paths, final long[] targetSizes);
private static native long cfPathsLen(final long handle);
private static native void cfPaths(
final long handle, final String[] paths, final long[] targetSizes);
private native void setInplaceUpdateSupport(
long handle, boolean inplaceUpdateSupport);
private native boolean inplaceUpdateSupport(long handle);
private native void setInplaceUpdateNumLocks(
long handle, long inplaceUpdateNumLocks)
throws IllegalArgumentException;
private native long inplaceUpdateNumLocks(long handle);
private native void setMemtablePrefixBloomSizeRatio(
long handle, double memtablePrefixBloomSizeRatio);
private native double memtablePrefixBloomSizeRatio(long handle);
private native void setExperimentalMempurgeThreshold(
long handle, double experimentalMempurgeThreshold);
private native double experimentalMempurgeThreshold(long handle);
private native void setMemtableWholeKeyFiltering(long handle, boolean memtableWholeKeyFiltering);
private native boolean memtableWholeKeyFiltering(long handle);
private native void setBloomLocality(
long handle, int bloomLocality);
private native int bloomLocality(long handle);
private native void setMaxSuccessiveMerges(
long handle, long maxSuccessiveMerges)
throws IllegalArgumentException;
private native long maxSuccessiveMerges(long handle);
private native void setOptimizeFiltersForHits(long handle,
boolean optimizeFiltersForHits);
private native boolean optimizeFiltersForHits(long handle);
private native void setMemtableHugePageSize(long handle,
long memtableHugePageSize);
private native long memtableHugePageSize(long handle);
private native void setSoftPendingCompactionBytesLimit(long handle,
long softPendingCompactionBytesLimit);
private native long softPendingCompactionBytesLimit(long handle);
private native void setHardPendingCompactionBytesLimit(long handle,
long hardPendingCompactionBytesLimit);
private native long hardPendingCompactionBytesLimit(long handle);
private native void setLevel0FileNumCompactionTrigger(long handle,
int level0FileNumCompactionTrigger);
private native int level0FileNumCompactionTrigger(long handle);
private native void setLevel0SlowdownWritesTrigger(long handle,
int level0SlowdownWritesTrigger);
private native int level0SlowdownWritesTrigger(long handle);
private native void setLevel0StopWritesTrigger(long handle,
int level0StopWritesTrigger);
private native int level0StopWritesTrigger(long handle);
private native void setMaxBytesForLevelMultiplierAdditional(long handle,
int[] maxBytesForLevelMultiplierAdditional);
private native int[] maxBytesForLevelMultiplierAdditional(long handle);
private native void setParanoidFileChecks(long handle,
boolean paranoidFileChecks);
private native boolean paranoidFileChecks(long handle);
private native void setMaxWriteBufferNumberToMaintain(final long handle,
final int maxWriteBufferNumberToMaintain);
private native int maxWriteBufferNumberToMaintain(final long handle);
private native void setCompactionPriority(final long handle,
final byte compactionPriority);
private native byte compactionPriority(final long handle);
private native void setReportBgIoStats(final long handle,
final boolean reportBgIoStats);
private native boolean reportBgIoStats(final long handle);
private native void setTtl(final long handle, final long ttl);
private native long ttl(final long handle);
private native void setPeriodicCompactionSeconds(
final long handle, final long periodicCompactionSeconds);
private native long periodicCompactionSeconds(final long handle);
private native void setCompactionOptionsUniversal(final long handle,
final long compactionOptionsUniversalHandle);
private native void setCompactionOptionsFIFO(final long handle,
final long compactionOptionsFIFOHandle);
private native void setForceConsistencyChecks(final long handle,
final boolean forceConsistencyChecks);
private native boolean forceConsistencyChecks(final long handle);
private native void setSstPartitionerFactory(long nativeHandle_, long newFactoryHandle);
private static native void setCompactionThreadLimiter(
final long nativeHandle_, final long compactionThreadLimiterHandle);
private native void setMemtableMaxRangeDeletions(final long handle, final int count);
private native int memtableMaxRangeDeletions(final long handle);
private native void setEnableBlobFiles(final long nativeHandle_, final boolean enableBlobFiles);
private native boolean enableBlobFiles(final long nativeHandle_);
private native void setMinBlobSize(final long nativeHandle_, final long minBlobSize);
private native long minBlobSize(final long nativeHandle_);
private native void setBlobFileSize(final long nativeHandle_, final long blobFileSize);
private native long blobFileSize(final long nativeHandle_);
private native void setBlobCompressionType(final long nativeHandle_, final byte compressionType);
private native byte blobCompressionType(final long nativeHandle_);
private native void setEnableBlobGarbageCollection(
final long nativeHandle_, final boolean enableBlobGarbageCollection);
private native boolean enableBlobGarbageCollection(final long nativeHandle_);
private native void setBlobGarbageCollectionAgeCutoff(
final long nativeHandle_, final double blobGarbageCollectionAgeCutoff);
private native double blobGarbageCollectionAgeCutoff(final long nativeHandle_);
private native void setBlobGarbageCollectionForceThreshold(
final long nativeHandle_, final double blobGarbageCollectionForceThreshold);
private native double blobGarbageCollectionForceThreshold(final long nativeHandle_);
private native void setBlobCompactionReadaheadSize(
final long nativeHandle_, final long blobCompactionReadaheadSize);
private native long blobCompactionReadaheadSize(final long nativeHandle_);
private native void setBlobFileStartingLevel(
final long nativeHandle_, final int blobFileStartingLevel);
private native int blobFileStartingLevel(final long nativeHandle_);
private native void setPrepopulateBlobCache(
final long nativeHandle_, final byte prepopulateBlobCache);
private native byte prepopulateBlobCache(final long nativeHandle_);
// instance variables
// NOTE: If you add new member variables, please update the copy constructor above!
private MemTableConfig memTableConfig_;
private TableFormatConfig tableFormatConfig_;
private AbstractComparator comparator_;
private AbstractCompactionFilter> compactionFilter_;
private AbstractCompactionFilterFactory>
compactionFilterFactory_;
private CompactionOptionsUniversal compactionOptionsUniversal_;
private CompactionOptionsFIFO compactionOptionsFIFO_;
private CompressionOptions bottommostCompressionOptions_;
private CompressionOptions compressionOptions_;
private SstPartitionerFactory sstPartitionerFactory_;
private ConcurrentTaskLimiter compactionThreadLimiter_;
}