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Commons Collections example source code file (NotNullPredicate.java)
The Commons Collections NotNullPredicate.java source code/* * 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.commons.collections.functors; import java.io.Serializable; import org.apache.commons.collections.Predicate; /** * Predicate implementation that returns true if the input is not null. * * @since Commons Collections 3.0 * @version $Revision: 646777 $ $Date: 2008-04-10 13:33:15 +0100 (Thu, 10 Apr 2008) $ * * @author Stephen Colebourne */ public final class NotNullPredicate implements Predicate, Serializable { /** Serial version UID */ private static final long serialVersionUID = 7533784454832764388L; /** Singleton predicate instance */ public static final Predicate INSTANCE = new NotNullPredicate(); /** * Factory returning the singleton instance. * * @return the singleton instance * @since Commons Collections 3.1 */ public static Predicate getInstance() { return INSTANCE; } /** * Restricted constructor. */ private NotNullPredicate() { super(); } /** * Evaluates the predicate returning true if the object does not equal null. * * @param object the object to evaluate * @return true if not null */ public boolean evaluate(Object object) { return (object != null); } } Other Commons Collections examples (source code examples)Here is a short list of links related to this Commons Collections NotNullPredicate.java source code file: |
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