com.tangosol.persistence

Interface CachePersistenceHelper.Visitor

All Known Implementing Classes:

AbstractPersistenceTools.StatsVisitor

Enclosing class:

CachePersistenceHelper

public static interface CachePersistenceHelper.Visitor

The Visitor interface allows the "iteration" of the persisted contents (and metadata) of a cache service in the style of the Visitor Pattern.

Method Summary

Modifier and Type	Method and Description
boolean	visitCacheEntry(long lOldCacheId, Binary binKey, Binary binValue) Apply the visitor to the specified cache entry (key-value pair).
boolean	visitIndex(long lOldCacheId, Binary binExtractor, Binary binComparator) Apply the visitor to the specified cache index.
boolean	visitListener(long lOldCacheId, Binary binKey, long lListenerId, boolean fLite) Apply the visitor to the specified cache entry listener.
boolean	visitLock(long lOldCacheId, Binary binKey, long lHolderId, long lHolderThreadId) Apply the visitor to the specified cache entry lock.
boolean	visitTrigger(long lOldCacheId, Binary binTrigger) Apply the visitor to the specified trigger.

Method Detail

visitCacheEntry

boolean visitCacheEntry(long lOldCacheId,
                        Binary binKey,
                        Binary binValue)

Apply the visitor to the specified cache entry (key-value pair).

Parameters:

lOldCacheId - the persisted cache-id

binKey - the cache key

binValue - the cache value

Returns:

false to terminate the iteration

visitListener

boolean visitListener(long lOldCacheId,
                      Binary binKey,
                      long lListenerId,
                      boolean fLite)

Apply the visitor to the specified cache entry listener.

Parameters:

lOldCacheId - the persisted cache-id

binKey - the cache key

lListenerId - the service-unique identifier of the listening member

fLite - true iff the listener should receive "lite" events

Returns:

false to terminate the iteration

visitLock

boolean visitLock(long lOldCacheId,
                  Binary binKey,
                  long lHolderId,
                  long lHolderThreadId)

Apply the visitor to the specified cache entry lock.

Parameters:

lOldCacheId - the persisted cache-id

binKey - the cache key

lHolderId - the service-unique identifier of the lock holder

lHolderThreadId - the thread-id of the lock holder

Returns:

false to terminate the iteration

visitIndex

boolean visitIndex(long lOldCacheId,
                   Binary binExtractor,
                   Binary binComparator)

Apply the visitor to the specified cache index.

Parameters:

lOldCacheId - the persisted cache-id

binExtractor - the index extractor

binComparator - the index comparator

Returns:

false to terminate the iteration

visitTrigger

boolean visitTrigger(long lOldCacheId,
                     Binary binTrigger)

Apply the visitor to the specified trigger.

Parameters:

lOldCacheId - the persisted cache-id

binTrigger - the trigger

Returns:

false to terminate the iteration