| /* |
| * 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.functor.core; |
| |
| import java.io.Serializable; |
| |
| import org.apache.commons.functor.BinaryPredicate; |
| import org.apache.commons.functor.Predicate; |
| import org.apache.commons.functor.adapter.RightBoundPredicate; |
| |
| /** |
| * {@link #test Tests} the reference (!=) inequality of its arguments. |
| * |
| * @param <L> the left argument type. |
| * @param <R> the right argument type. |
| * @version $Revision$ $Date$ |
| */ |
| public final class IsNotSame<L, R> implements BinaryPredicate<L, R>, Serializable { |
| // static attributes |
| // ------------------------------------------------------------------------ |
| /** |
| * Basic IsNotSame<Object, Object> instance. |
| */ |
| public static final IsNotSame<Object, Object> INSTANCE = IsNotSame.<Object, Object>instance(); |
| /** |
| * serialVersionUID declaration. |
| */ |
| private static final long serialVersionUID = 5566555980860979281L; |
| |
| // constructor |
| // ------------------------------------------------------------------------ |
| /** |
| * Create a new IsNotSame. |
| */ |
| public IsNotSame() { |
| } |
| |
| // predicate interface |
| // ------------------------------------------------------------------------ |
| /** |
| * {@inheritDoc} |
| */ |
| public boolean test(L left, R right) { |
| return left != right; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public boolean equals(Object that) { |
| return that instanceof IsNotSame<?, ?>; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public int hashCode() { |
| return "IsNotSame".hashCode(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public String toString() { |
| return "IsNotSame"; |
| } |
| |
| // static methods |
| // ------------------------------------------------------------------------ |
| /** |
| * Get an IsNotSame instance. |
| * @param <L> the left argument type. |
| * @param <R> the right argument type. |
| * @return IsNotSame |
| */ |
| public static <L, R> IsNotSame<L, R> instance() { |
| return new IsNotSame<L, R>(); |
| } |
| |
| /** |
| * Get an IsNotSame Predicate. |
| * @param <L> the left argument type. |
| * @param <R> the right argument type. |
| * @param object bound comparison object |
| * @return Predicate<L> |
| */ |
| public static <L, R> Predicate<L> as(R object) { |
| return new RightBoundPredicate<L>(new IsNotSame<L, R>(), object); |
| } |
| } |