org.jbox2d.pooling.arrays.IntArray Maven / Gradle / Ivy
/**
* Copyright (c) 2013, Daniel Murphy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* Created at 4:14:34 AM Jul 17, 2010
*/
/**
* Created at 4:14:34 AM Jul 17, 2010
*/
package org.jbox2d.pooling.arrays;
import java.util.HashMap;
/**
* Not thread safe int[] pooling
* @author Daniel Murphy
*/
public class IntArray {
private final HashMap map = new HashMap();
public int[] get(int argLength) {
assert (argLength > 0);
if (!map.containsKey(argLength)) {
map.put(argLength, getInitializedArray(argLength));
}
assert (map.get(argLength).length == argLength) : "Array not built of correct length";
return map.get(argLength);
}
protected int[] getInitializedArray(int argLength) {
return new int[argLength];
}
}