org.rocksdb

Class WriteBatch.Handler

java.lang.Object

org.rocksdb.AbstractNativeReference

org.rocksdb.AbstractImmutableNativeReference

org.rocksdb.WriteBatch.Handler

All Implemented Interfaces:

java.lang.AutoCloseable

Enclosing class:

WriteBatch

public abstract static class WriteBatch.Handler
extends AbstractImmutableNativeReference

Handler callback for iterating over the contents of a batch.

Constructor Summary

Constructors

Constructor and Description
WriteBatch.Handler()

Method Summary

Methods

Modifier and Type	Method and Description
abstract void	delete(byte[] key)
abstract void	deleteRange(byte[] beginKey, byte[] endKey)
protected void	disposeInternal() Deletes underlying C++ handler pointer.
abstract void	logData(byte[] blob)
abstract void	merge(byte[] key, byte[] value)
abstract void	put(byte[] key, byte[] value)
boolean	shouldContinue() shouldContinue is called by the underlying iterator WriteBatch::Iterate.

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

WriteBatch.Handler

public WriteBatch.Handler()

Method Detail

put

public abstract void put(byte[] key,
       byte[] value)

merge

public abstract void merge(byte[] key,
         byte[] value)

delete

public abstract void delete(byte[] key)

deleteRange

public abstract void deleteRange(byte[] beginKey,
               byte[] endKey)

logData

public abstract void logData(byte[] blob)

shouldContinue

public boolean shouldContinue()

shouldContinue is called by the underlying iterator WriteBatch::Iterate. If it returns false, iteration is halted. Otherwise, it continues iterating. The default implementation always returns true.

Returns:

boolean value indicating if the iteration is halted.

disposeInternal

protected void disposeInternal()

Deletes underlying C++ handler pointer.

Specified by:

disposeInternal in class AbstractImmutableNativeReference