com.tangosol.util

Class SegmentedConcurrentMap.UnlockAction

java.lang.Object

com.tangosol.util.SegmentedHashMap.EntryActionAdapter

com.tangosol.util.SegmentedConcurrentMap.UnlockAction

All Implemented Interfaces:

SegmentedHashMap.EntryAction, SegmentedHashMap.IterableEntryAction

Enclosing class:

SegmentedConcurrentMap

protected class SegmentedConcurrentMap.UnlockAction
extends SegmentedHashMap.EntryActionAdapter

Action support for unlock(). This action attempts to lock the specified key in this map, and is expected to run while holding the segment-lock for the specified key.

The context object for an UnlockAction is the lock-holder that is releasing the lock.

The result of invoking an UnlockAction is Boolean.TRUE if the key is successfully unlocked, or Boolean.FALSE otherwise.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	UnlockAction()

Method Summary

Modifier and Type	Method and Description
Object	invokeFound(Object oKey, Object oContext, SegmentedHashMap.Entry[] aeBucket, int nBucket, SegmentedHashMap.Entry entryPrev, SegmentedHashMap.Entry entryCur) Invoke some action, holding the segment lock, when a matching Entry is found.
Object	invokeNotFound(Object oKey, Object oContext, SegmentedHashMap.Entry[] aeBucket, int nBucket) Invoke some action, holding the segment lock, when no matching Entry is found.

Methods inherited from class com.tangosol.util.SegmentedHashMap.EntryActionAdapter

isComplete

Methods inherited from class java.lang.Object

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

Constructor Detail

UnlockAction

protected UnlockAction()

Method Detail

invokeFound

public Object invokeFound(Object oKey,
                          Object oContext,
                          SegmentedHashMap.Entry[] aeBucket,
                          int nBucket,
                          SegmentedHashMap.Entry entryPrev,
                          SegmentedHashMap.Entry entryCur)

Invoke some action, holding the segment lock, when a matching Entry is found.

Specified by:

invokeFound in interface SegmentedHashMap.EntryAction

Overrides:

invokeFound in class SegmentedHashMap.EntryActionAdapter

Parameters:

oKey - the key to which the action is applied

oContext - opaque context specific to the action

aeBucket - the bucket array

nBucket - the index into the bucket array

entryPrev - the Entry object immediately preceding the Entry that was found, or null

entryCur - the Entry object that was found

Returns:

an opaque result value

invokeNotFound

public Object invokeNotFound(Object oKey,
                             Object oContext,
                             SegmentedHashMap.Entry[] aeBucket,
                             int nBucket)

Invoke some action, holding the segment lock, when no matching Entry is found.

Specified by:

invokeNotFound in interface SegmentedHashMap.EntryAction

Overrides:

invokeNotFound in class SegmentedHashMap.EntryActionAdapter

Parameters:

oKey - the key to which the action is applied

oContext - opaque context specific to the action

aeBucket - the bucket array

nBucket - the index into the bucket array

Returns:

an opaque result value