de.caff.util

Interface Counter

All Known Implementing Classes:

SimpleCounter, ThreadSafeCounter

public interface Counter

A counter is basically an integer which can be used for counting. Depending on the usage it comes in a thread-safe implementation and a non thread-safe implementation. There are also factories for both counters: SIMPLE and THREAD_SAFE.

Author:

Rammi

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	Counter.Creator Interface for counter creation.

Field Summary

Fields

Modifier and Type	Field and Description
static Counter.Creator	SIMPLE Simple counter creator.
static Counter.Creator	THREAD_SAFE Thread safe counter creator.

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 value) 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.

Field Detail

SIMPLE

static final Counter.Creator SIMPLE

Simple counter creator.

See Also:

SimpleCounter

THREAD_SAFE

static final Counter.Creator THREAD_SAFE

Thread safe counter creator.

See Also:

ThreadSafeCounter

Method Detail

add

int add(int add)

Add something to the counter.

Parameters:

add - value to add

Returns:

counter value

add

int add(Counter counter)

Add something to the counter.

Parameters:

counter - counter which value is added

Returns:

counter value

add1

int add1()

Add 1 to counter.

Returns:

counter value

substract

int substract(int sub)

Substract something from the counter.

Parameters:

sub - value to substract

Returns:

counter value

substract

int substract(Counter counter)

Substract something from the counter.

Parameters:

counter - counter which value is substracted

Returns:

counter value

substract1

int substract1()

Substract 1 from counter.

Returns:

counter value

getValue

int getValue()

Get the value.

Returns:

accumulated value

setValue

void setValue(int value)

Set the value.

Parameters:

value - new value