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Counter (JBoss/Common API) - JBoss 4.0.1 sp1 common API Documentation 英文版文档

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org.jboss.util
Class Counter

java.lang.Object
  org.jboss.util.Counter

All Implemented Interfaces:

Cloneable, Serializable

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public class Counter

extends Object

implements Serializable, Cloneable

An integer counter class.

Version:

$Revision: 1.1 $

Author:

Jason Dillon

See Also:

Serialized Form

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Constructor Summary

Counter()           Construct a Counter.

Counter(int count)           Construct a Counter with a starting value.

 

Method Summary
Object	clone()           Return a cloned copy of this object.
int	decrement()           Decrement the counter.
boolean	equals(Object obj)           Check if the given object is equal to this.
int	getCount()           Return the current value of the counter.
int	increment()           Increment the counter.
static Counter	makeDirectional(Counter counter, boolean increasing)           Returns a directional counter.
static Counter	makeSynchronized(Counter counter)           Return a synchronized counter.
void	reset()           Reset the counter to zero.
String	toString()           Return a string representation of this.

 

Methods inherited from class java.lang.Object

finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

 

Constructor Detail

Counter

public Counter(int count)

Construct a Counter with a starting value.

Parameters:

count - Starting value for counter.

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Counter

public Counter()

Construct a Counter.

Method Detail

increment

public int increment()

Increment the counter. (Optional operation)

Returns:

The incremented value of the counter.

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decrement

public int decrement()

Decrement the counter. (Optional operation)

Returns:

The decremented value of the counter.

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getCount

public int getCount()

Return the current value of the counter.

Returns:

The current value of the counter.

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reset

public void reset()

Reset the counter to zero. (Optional operation)

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equals

public boolean equals(Object obj)

Check if the given object is equal to this.

Parameters:

obj - Object to test equality with.

Returns:

True if object is equal to this.

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toString

public String toString()

Return a string representation of this.

Returns:

A string representation of this.

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clone

public Object clone()

Return a cloned copy of this object.

Returns:

A cloned copy of this object.

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makeSynchronized

public static Counter makeSynchronized(Counter counter)

Return a synchronized counter.

Parameters:

counter - Counter to synchronize.

Returns:

Synchronized counter.

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makeDirectional

public static Counter makeDirectional(Counter counter,
                                      boolean increasing)

Returns a directional counter.

Parameters:

counter - Counter to make directional.

increasing - True to create an increasing only or false to create a decreasing only.

Returns:

A directional counter.

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