| /* |
| * 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.cocoon.woody.expression; |
| |
| import org.outerj.expression.AbstractExpression; |
| import org.outerj.expression.ExpressionContext; |
| import org.outerj.expression.ExpressionException; |
| import org.outerj.expression.Expression; |
| |
| /** |
| * Converts argument to the string. Useful when concatenating non-string |
| * values, such as numbers. |
| * |
| * @author <a href="http://cocoon.apache.org/">The Apache Cocoon Team</a> |
| * @version CVS $Id$ |
| */ |
| public class StringFunction extends AbstractExpression { |
| |
| public Object evaluate(ExpressionContext context) throws ExpressionException { |
| return String.valueOf(((Expression)arguments.get(0)).evaluate(context)); |
| } |
| |
| public Class getResultType() { |
| return String.class; |
| } |
| |
| public String getDescription() { |
| return "String function"; |
| } |
| } |