org.apache.nifi.distributed.cache.server.set

Class PersistentSetCache

java.lang.Object

org.apache.nifi.distributed.cache.server.set.PersistentSetCache

All Implemented Interfaces:

SetCache

public class PersistentSetCache
extends Object
implements SetCache

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private static class	PersistentSetCache.Serde
private static class	PersistentSetCache.SetRecord

Field Summary

Fields

Modifier and Type	Field and Description
private AtomicLong	modifications
private WriteAheadRepository<PersistentSetCache.SetRecord>	wali
private SetCache	wrapped

Constructor Summary

Constructors

Constructor and Description
PersistentSetCache(String serviceIdentifier, File persistencePath, SetCache cacheToWrap)

Method Summary

Modifier and Type	Method and Description
SetCacheResult	addIfAbsent(ByteBuffer value)
SetCacheResult	contains(ByteBuffer value)
SetCacheResult	remove(ByteBuffer value)
void	restore()
void	shutdown()

Methods inherited from class java.lang.Object

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

Field Detail

wrapped

private final SetCache wrapped

wali

private final WriteAheadRepository<PersistentSetCache.SetRecord> wali

modifications

private final AtomicLong modifications

Constructor Detail

PersistentSetCache

public PersistentSetCache(String serviceIdentifier,
                          File persistencePath,
                          SetCache cacheToWrap)
                   throws IOException

Throws:

IOException

Method Detail

restore

public void restore()
             throws IOException

Throws:

IOException

remove

public SetCacheResult remove(ByteBuffer value)
                      throws IOException

Specified by:

remove in interface SetCache

Throws:

IOException

addIfAbsent

public SetCacheResult addIfAbsent(ByteBuffer value)
                           throws IOException

Specified by:

addIfAbsent in interface SetCache

Throws:

IOException

contains

public SetCacheResult contains(ByteBuffer value)
                        throws IOException

Specified by:

contains in interface SetCache

Throws:

IOException

shutdown

public void shutdown()
              throws IOException

Specified by:

shutdown in interface SetCache

Throws:

IOException