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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.bcel.util;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import org.apache.bcel.classfile.JavaClass;
/**
* Utility class implementing a (typesafe) set of JavaClass objects.
* Since JavaClass has no equals() method, the name of the class is
* used for comparison.
*
* @version $Id$
* @see ClassStack
*/
public class ClassSet {
private final Map<String, JavaClass> map = new HashMap<>();
public boolean add( final JavaClass clazz ) {
boolean result = false;
if (!map.containsKey(clazz.getClassName())) {
result = true;
map.put(clazz.getClassName(), clazz);
}
return result;
}
public void remove( final JavaClass clazz ) {
map.remove(clazz.getClassName());
}
public boolean empty() {
return map.isEmpty();
}
public JavaClass[] toArray() {
final Collection<JavaClass> values = map.values();
final JavaClass[] classes = new JavaClass[values.size()];
values.toArray(classes);
return classes;
}
public String[] getClassNames() {
return map.keySet().toArray(new String[map.size()]);
}
}
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