de.caff.util

Class ThreadSafeCounter

java.lang.Object

de.caff.util.ThreadSafeCounter

All Implemented Interfaces:

Counter

public final class ThreadSafeCounter
extends java.lang.Object
implements Counter

Changeable integer wrapper, to be used as counter especially as map values. Note that as this is a mutable value, it is a very bad idea to use it as a map key. This class is thread safe!

Author:

Rammi

Nested Class Summary

Nested classes/interfaces inherited from interface de.caff.util.Counter

Counter.Creator

Field Summary

Fields inherited from interface de.caff.util.Counter

SIMPLE, THREAD_SAFE

Constructor Summary

Constructors

Constructor and Description
ThreadSafeCounter() Default constructor.
ThreadSafeCounter(Counter count) Copy constructor.
ThreadSafeCounter(int val) Constructor.

Method Summary

Modifier and Type	Method and Description
int	add(Counter counter) Add something to the counter.
int	add(int add) Add something to the counter.
int	add1() Add 1 to counter.
int	getValue() Get the value.
void	setValue(int val) Set the value.
int	substract(Counter counter) Substract something from the counter.
int	substract(int sub) Substract something from the counter.
int	substract1() Substract 1 from counter.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ThreadSafeCounter

public ThreadSafeCounter()

Default constructor. Initialize value with 0.

ThreadSafeCounter

public ThreadSafeCounter(int val)

Constructor. Initialize value with val.

Parameters:

val - init value

ThreadSafeCounter

public ThreadSafeCounter(Counter count)

Copy constructor. Initialize value with given counter.

Parameters:

count - counter to be copied

Method Detail

add

public int add(int add)

Add something to the counter.

Specified by:

add in interface Counter

Parameters:

add - value to add

Returns:

counter value

add

public int add(Counter counter)

Add something to the counter.

Specified by:

add in interface Counter

Parameters:

counter - counter which value is added

Returns:

counter value

add1

public int add1()

Add 1 to counter.

Specified by:

add1 in interface Counter

Returns:

counter value

substract

public int substract(int sub)

Substract something from the counter.

Specified by:

substract in interface Counter

Parameters:

sub - value to substract

Returns:

counter value

substract

public int substract(Counter counter)

Substract something from the counter.

Specified by:

substract in interface Counter

Parameters:

counter - counter which value is substracted

Returns:

counter value

substract1

public int substract1()

Substract 1 from counter.

Specified by:

substract1 in interface Counter

Returns:

counter value

getValue

public int getValue()

Get the value.

Specified by:

getValue in interface Counter

Returns:

accumulated value

setValue

public void setValue(int val)

Set the value.

Specified by:

setValue in interface Counter

Parameters:

val - new value

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object