/*******************************************************************************
* 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.collections;
import java.util.Collection;
import java.util.HashSet;
import java.util.LinkedHashSet;
/**
* A debugging aid. When HashSetFactory.DEBUG is set, this class creates ParanoidHashSets. Otherwise,
* it returns {@link LinkedHashSet}s
*/
public class HashSetFactory {
/**
* If true, this factory returns Paranoid versions of collections
*/
final public static boolean DEBUG = false;
/**
* @return A {@link ParanoidHashSet} if DEBUG = true, a java.util.HashSet otherwise
*/
public static <T> HashSet<T> make(int size) {
if (DEBUG) {
return new ParanoidHashSet<T>(size);
} else {
return new LinkedHashSet<T>(size);
}
}
/**
* @return A ParanoidHashSet if DEBUG = true, a java.util.HashSet otherwise
*/
public static <T> HashSet<T> make() {
if (DEBUG) {
return new ParanoidHashSet<T>();
} else {
return new LinkedHashSet<T>();
}
}
/**
* @return A ParanoidHashSet if DEBUG = true, a java.util.HashSet otherwise
*/
public static <T> HashSet<T> make(Collection<T> s) {
if (s == null) {
throw new IllegalArgumentException("null s");
}
if (DEBUG) {
return new ParanoidHashSet<T>(s);
} else {
return new LinkedHashSet<T>(s);
}
}
}