/*
* 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 ro.nextreports.server.api;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
class Holder<V> {
private Map<String, V> values = new HashMap<String, V>();
public synchronized String add(V element) {
String id = UUID.randomUUID().toString();
values.put(id, element);
return id;
}
public synchronized V remove(String id) {
return values.remove(id);
}
public synchronized boolean containsId(String id) {
return values.containsKey(id);
}
public synchronized V get(String id) {
return values.get(id);
}
}