| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||
| Expression |
|
| 0.0;0 |
| 1 | /* |
|
| 2 | * Licensed to the Apache Software Foundation (ASF) under one or more |
|
| 3 | * contributor license agreements. See the NOTICE file distributed with |
|
| 4 | * this work for additional information regarding copyright ownership. |
|
| 5 | * The ASF licenses this file to You under the Apache License, Version 2.0 |
|
| 6 | * (the "License"); you may not use this file except in compliance with |
|
| 7 | * the License. You may obtain a copy of the License at |
|
| 8 | * |
|
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
|
| 10 | * |
|
| 11 | * Unless required by applicable law or agreed to in writing, software |
|
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
|
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
|
| 14 | * See the License for the specific language governing permissions and |
|
| 15 | * limitations under the License. |
|
| 16 | */ |
|
| 17 | package org.apache.camel; |
|
| 18 | ||
| 19 | /** |
|
| 20 | * An <a href="http://activemq.apache.org/camel/expression.html">expression</a> |
|
| 21 | * provides a plugin strategy for evaluating expressions on a message exchange to support things like |
|
| 22 | * <a href="http://activemq.apache.org/camel/scripting-languages.html">scripting languages</a>, |
|
| 23 | * <a href="http://activemq.apache.org/camel/xquery.html">XQuery</a> |
|
| 24 | * or <a href="http://activemq.apache.org/camel/sql.html">SQL</a> as well |
|
| 25 | * as any arbitrary Java expression. |
|
| 26 | * |
|
| 27 | * |
|
| 28 | * @version $Revision: $ |
|
| 29 | */ |
|
| 30 | public interface Expression<E extends Exchange> { |
|
| 31 | ||
| 32 | /** |
|
| 33 | * Returns the value of the expression on the given exchange |
|
| 34 | * |
|
| 35 | * @param exchange the message exchange on which to evaluate the expression |
|
| 36 | * @return the value of the expression |
|
| 37 | */ |
|
| 38 | Object evaluate(E exchange); |
|
| 39 | } |