| /** |
| * 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.camel; |
| |
| /** |
| * Evaluates a binary <a |
| * href="http://camel.apache.org/predicate.html">predicate</a> on the |
| * message exchange to support things like <a |
| * href="http://camel.apache.org/scripting-languages.html">scripting |
| * languages</a>, <a href="http://camel.apache.org/xquery.html">XQuery</a> |
| * or <a href="http://camel.apache.org/sql.html">SQL</a> as well as |
| * any arbitrary Java expression. |
| * |
| * @version |
| */ |
| public interface Predicate { |
| |
| /** |
| * Evaluates the predicate on the message exchange and returns true if this |
| * exchange matches the predicate |
| * |
| * @param exchange the message exchange |
| * @return true if the predicate matches |
| */ |
| boolean matches(Exchange exchange); |
| |
| } |
