guru.nidi.codeassert.util.CountSet Maven / Gradle / Ivy
/*
* Copyright © 2015 Stefan Niederhauser ([email protected])
*
* 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 guru.nidi.codeassert.util;
import java.util.*;
public class CountSet {
private final Map map = new HashMap<>();
public void add(T elem) {
final Integer c = map.get(elem);
map.put(elem, (c == null ? 0 : c) + 1);
}
public boolean contains(T elem) {
return map.containsKey(elem);
}
public Map asMap() {
return map;
}
public Set asSet() {
return map.keySet();
}
}