/*
* Copyright 2010 Henry Coles
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and limitations under the License.
*/
package org.pitest.simpletest;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
/**
* @author henry
*
*/
public class EqualitySet<T> implements Iterable<T> {
private final List<T> members = new ArrayList<T>();
private final EqualityStrategy<T> equality;
public EqualitySet(final EqualityStrategy<T> equality) {
this.equality = equality;
}
public boolean add(final T arg0) {
if (!contains(arg0)) {
return this.members.add(arg0);
}
return false;
}
public boolean addAll(final Collection<? extends T> arg0) {
boolean isAdded = false;
for (final T each : arg0) {
isAdded |= add(each);
}
return isAdded;
}
public boolean contains(final T arg0) {
for (final T each : this.members) {
if (this.equality.isEqual(arg0, each)) {
return true;
}
}
return false;
}
public boolean isEmpty() {
return this.members.isEmpty();
}
@Override
public Iterator<T> iterator() {
return this.members.iterator();
}
public Collection<T> toCollection() {
return this.members;
}
}