/*******************************************************************************
* Copyright (c) 2006 Sybase, Inc. and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Sybase, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.pagedesigner.utils;
/**
* Flexible int array. You can set/get of any index value. The array size will
* be automatically adjusted.
*
* @author mengbo
*/
public class IntFlexArray {
int[] array;
int size = 0;
/**
* Create a new flex array with default capacity
*/
public IntFlexArray() {
this(10);
}
/**
* @param initCapacity
*/
public IntFlexArray(int initCapacity) {
if (initCapacity <= 0)
initCapacity = 10;
array = new int[initCapacity];
}
/**
* @param idx
* @param obj
*/
public void setAt(int idx, int obj) {
ensureCapacity(idx + 1);
array[idx] = obj;
if (idx + 1 > size)
size = idx + 1;
}
/**
* @param idx
* @return the value at idx or 0 if idx is out of bounds
*/
public int getAt(int idx) {
if (idx < array.length)
return array[idx];
return 0;
}
/**
* @return the current size of the array
*/
public int getSize() {
return size;
}
private void ensureCapacity(int size1) {
if (size1 <= array.length)
return;
int[] temp = array;
array = new int[2 * temp.length];
System.arraycopy(temp, 0, array, 0, temp.length);
}
}