org.rocksdb

Class Filter

java.lang.Object

org.rocksdb.AbstractNativeReference

org.rocksdb.AbstractImmutableNativeReference

org.rocksdb.RocksObject

org.rocksdb.Filter

All Implemented Interfaces:

java.lang.AutoCloseable

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

Modifier	Constructor and Description
protected	Filter(long nativeHandle)

Method Summary

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

Methods inherited from class org.rocksdb.AbstractImmutableNativeReference

close, disOwnNativeHandle, isOwningHandle

Methods inherited from class org.rocksdb.AbstractNativeReference

dispose, finalize

Methods inherited from class java.lang.Object

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

Constructor Detail

Filter

protected Filter(long nativeHandle)

Method Detail

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.

Overrides:

disposeInternal in class RocksObject

disposeInternal

protected final void disposeInternal(long handle)

Specified by:

disposeInternal in class RocksObject