com.tangosol.util

Class ThreadGate.ThreadLocalCounter

java.lang.Object

java.lang.ThreadLocal<Long>

com.tangosol.util.ThreadGate.ThreadLocalCounter

Enclosing class:

ThreadGate

public static class ThreadGate.ThreadLocalCounter
extends ThreadLocal<Long>

Specialization of ThreadLocalObject that can be used for efficient thread local long counters.

This class associates a single Long value with the current thread. The Long value may be retrieved, set, removed, incremented, or decremented.

Author:

jh 2004.12.03; coh 2010.08.13

Constructor Summary

Constructors

Constructor and Description
ThreadLocalCounter() Create a new ThreadLocalCounter with an initial Long value of zero.

Method Summary

Modifier and Type	Method and Description
long	decrement() Decrement the Long value of the ThreadLocalCounter for the current thread by one.
long	increment() Increment the Long value of the ThreadLocalCounter for the current thread by one.
protected Long	initialValue()

Methods inherited from class java.lang.ThreadLocal

get, remove, set, withInitial

Methods inherited from class java.lang.Object

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

Constructor Detail

ThreadLocalCounter

public ThreadLocalCounter()

Create a new ThreadLocalCounter with an initial Long value of zero.

Method Detail

increment

public long increment()

Increment the Long value of the ThreadLocalCounter for the current thread by one. If the ThreadLocalCounter has been removed or its value is null, 1 is returned.

Returns:

the new Long value for the current thread or 1 if the ThreadLocalCounter has been removed or its value is null

See Also:

decrement()

decrement

public long decrement()

Decrement the Long value of the ThreadLocalCounter for the current thread by one. If the ThreadLocalCounter has been removed or its value is null, -1 is returned.

Returns:

the new Long value for the current thread or -1 if the ThreadLocalCounter has been removed or its value is null

See Also:

increment()

initialValue

protected Long initialValue()

Overrides:

initialValue in class ThreadLocal<Long>