org.rocksdb

Class AbstractCompactionFilterFactory<T extends AbstractCompactionFilter<?>>

java.lang.Object

org.rocksdb.AbstractNativeReference

org.rocksdb.AbstractImmutableNativeReference

org.rocksdb.RocksCallbackObject

org.rocksdb.AbstractCompactionFilterFactory<T>

Type Parameters:

T - The concrete type of the compaction filter

All Implemented Interfaces:

AutoCloseable

public abstract class AbstractCompactionFilterFactory<T extends AbstractCompactionFilter<?>>
extends RocksCallbackObject

Each compaction will create a new AbstractCompactionFilter allowing the application to know about different compactions

Field Summary

Fields inherited from class org.rocksdb.RocksCallbackObject

nativeHandle_

Fields inherited from class org.rocksdb.AbstractImmutableNativeReference

owningHandle_

Constructor Summary

Constructors

Constructor and Description
AbstractCompactionFilterFactory()

Method Summary

Modifier and Type	Method and Description
abstract T	createCompactionFilter(AbstractCompactionFilter.Context context) Create a new compaction filter
protected void	disposeInternal() We override RocksCallbackObject.disposeInternal() as disposing of a rocksdb::AbstractCompactionFilterFactory requires a slightly different approach as it is a std::shared_ptr
protected long	initializeNative(long... nativeParameterHandles) Construct the Native C++ object which will callback to our object methods
abstract String	name() A name which identifies this compaction filter The name will be printed to the LOG file on start up for diagnosis

Methods inherited from class org.rocksdb.AbstractImmutableNativeReference

close, disOwnNativeHandle, isOwningHandle

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractCompactionFilterFactory

public AbstractCompactionFilterFactory()

Method Detail

initializeNative

protected long initializeNative(long... nativeParameterHandles)

Description copied from class: RocksCallbackObject

Construct the Native C++ object which will callback to our object methods

Specified by:

initializeNative in class RocksCallbackObject

Parameters:

nativeParameterHandles - An array of native handles for any parameter objects that are needed during construction

Returns:

The native handle of the C++ object which will callback to us

createCompactionFilter

public abstract T createCompactionFilter(AbstractCompactionFilter.Context context)

Create a new compaction filter

Parameters:

context - The context describing the need for a new compaction filter

Returns:

A new instance of AbstractCompactionFilter

name

public abstract String name()

A name which identifies this compaction filter The name will be printed to the LOG file on start up for diagnosis

Returns:

name which identifies this compaction filter.

disposeInternal

protected void disposeInternal()

We override RocksCallbackObject.disposeInternal() as disposing of a rocksdb::AbstractCompactionFilterFactory requires a slightly different approach as it is a std::shared_ptr

Overrides:

disposeInternal in class RocksCallbackObject