stamp.util
Class Pool

java.lang.Object
  |
  +--stamp.util.List
        |
        +--stamp.util.Pool

Direct Known Subclasses:

Cache

public abstract class Pool

extends List

Maintains a pool of reusable objects. When an object instance is needed it is checked out of the pool. When the object is no longer required it is checked back into the pool. This class should be subclassed for each object class that needs to be pooled.

Field Summary

protected boolean[]

objectUsed

Fields inherited from class stamp.util.List

list, numObjects

Constructor Summary

Pool(int maxSize)
Creates a new object pool.

Method Summary

void	checkIn(Object buffer) Checks an object back into the pool when it is no longer needed.
Object	checkOut() Check an object out of the pool.

Methods inherited from class stamp.util.List

add, add, get, size

Methods inherited from class java.lang.Object

equals

Field Detail

objectUsed

protected boolean[] objectUsed

Constructor Detail

Pool

public Pool(int maxSize)

Creates a new object pool. The subclass must allocate the objects in the pool.

Method Detail

checkOut

public Object checkOut()
                throws IndexOutOfBoundsException

Check an object out of the pool.

Returns:

a free object instantance

checkIn

public void checkIn(Object buffer)

Checks an object back into the pool when it is no longer needed.