Android Open Source - AndroidFramework Pool

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License

The source code is released under:

This is free and unencumbered software released into the public domain. Anyone is free to copy, modify, publish, use, compile, sell, or distribute this software, either in source code form or as a co...

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Java Source Code

package com.mdobbins.framework;
/*from  w w  w .  j a v a 2  s.com*/
import java.util.ArrayList;
import java.util.List;

public class Pool<T> {
    public interface PoolObjectFactory<T> {
        public T createObject();
    }

    private final List<T> freeObjects;
    private final PoolObjectFactory<T> factory;
    private final int maxSize;

    public Pool(PoolObjectFactory<T> factory, int maxSize) {
        this.factory = factory;
        this.maxSize = maxSize;
        this.freeObjects = new ArrayList<T>(maxSize);
    }

    public T newObject() {
        T object = null;

        if (freeObjects.size() == 0)
            object = factory.createObject();
        else
            object = freeObjects.remove(freeObjects.size() - 1);

        return object;
    }

    public void free(T object) {
        if (freeObjects.size() < maxSize)
            freeObjects.add(object);
    }
}

Java Source Code List