| /* |
| * 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.struts2.el; |
| |
| import javax.el.ELContext; |
| import javax.el.ExpressionFactory; |
| import javax.el.MethodExpression; |
| import javax.el.ValueExpression; |
| |
| import org.apache.struts2.el.lang.ELSupport; |
| import org.apache.struts2.el.lang.ExpressionBuilder; |
| import org.apache.struts2.el.util.MessageFactory; |
| |
| /** |
| * @see javax.el.ExpressionFactory |
| * |
| * @author Jacob Hookom [jacob@hookom.net] |
| * @version $Change: 181177 $$DateTime: 2001/06/26 08:45:09 $$Author: markt $ |
| */ |
| public class ExpressionFactoryImpl extends ExpressionFactory { |
| |
| /** |
| * |
| */ |
| public ExpressionFactoryImpl() { |
| super(); |
| } |
| |
| public Object coerceToType(Object obj, Class type) { |
| return ELSupport.coerceToType(obj, type); |
| } |
| |
| public MethodExpression createMethodExpression(ELContext context, |
| String expression, Class<?> expectedReturnType, |
| Class<?>[] expectedParamTypes) { |
| if (expectedParamTypes == null) { |
| throw new NullPointerException(MessageFactory |
| .get("error.method.nullParms")); |
| } |
| ExpressionBuilder builder = new ExpressionBuilder(expression, context); |
| return builder.createMethodExpression(expectedReturnType, |
| expectedParamTypes); |
| } |
| |
| public ValueExpression createValueExpression(ELContext context, |
| String expression, Class expectedType) { |
| if (expectedType == null) { |
| throw new NullPointerException(MessageFactory |
| .get("error.value.expectedType")); |
| } |
| ExpressionBuilder builder = new ExpressionBuilder(expression, context); |
| return builder.createValueExpression(expectedType); |
| } |
| |
| public ValueExpression createValueExpression(Object instance, |
| Class expectedType) { |
| if (expectedType == null) { |
| throw new NullPointerException(MessageFactory |
| .get("error.value.expectedType")); |
| } |
| return new ValueExpressionLiteral(instance, expectedType); |
| } |
| } |