org.rocksdb

Class Filter

java.lang.Object

org.rocksdb.RocksObject

org.rocksdb.Filter

Direct Known Subclasses:

BloomFilter

public abstract class Filter
extends RocksObject

Filters are stored in rocksdb and are consulted automatically by rocksdb to decide whether or not to read some information from disk. In many cases, a filter can cut down the number of disk seeks form a handful to a single disk seek per DB::Get() call.

Field Summary

Fields inherited from class org.rocksdb.RocksObject

nativeHandle_

Constructor Summary

Constructors

Constructor and Description
Filter()

Method Summary

Methods

Modifier and Type	Method and Description
protected abstract void	createNewFilter()
protected void	disposeInternal() Deletes underlying C++ filter pointer.

Methods inherited from class org.rocksdb.RocksObject

disOwnNativeHandle, dispose, finalize, isInitialized, isOwningNativeHandle

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Filter

public Filter()

Method Detail

createNewFilter

protected abstract void createNewFilter()

disposeInternal

protected void disposeInternal()

Deletes underlying C++ filter pointer. Note that this function should be called only after all RocksDB instances referencing the filter are closed. Otherwise an undefined behavior will occur.

Specified by:

disposeInternal in class RocksObject