/*******************************************************************************
* Copyright (c) 2002 - 2006 IBM Corporation.
* 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package com.ibm.wala.util.intset;
/**
* A {@link MutableSparseIntSet} that allows for tuning of its initial size and expansion factor.
*
* @see #getInitialNonEmptySize()
* @see #getExpansionFactor()
*/
public class TunedMutableSparseIntSet extends MutableSparseIntSet {
private final int initialSize;
private final float expansion;
public TunedMutableSparseIntSet(int initialSize, float expansion) throws IllegalArgumentException {
super();
if (initialSize <= 0) {
throw new IllegalArgumentException("invalid initial size " + initialSize);
}
this.initialSize = initialSize;
this.expansion = expansion;
}
@Override
public float getExpansionFactor() {
return expansion;
}
@Override
public int getInitialNonEmptySize() {
return initialSize;
}
}