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ArgumentConvertingMethodInvoker.java
上传用户:jiancairen
上传日期:2007-08-27
资源大小:26458k
文件大小:2k
源码类别:
Java编程
开发平台:
Java
- /*
- * Copyright 2002-2004 the original author or authors.
- *
- * Licensed 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.springframework.beans.support;
- import java.beans.PropertyEditor;
- import org.springframework.beans.BeanWrapperImpl;
- import org.springframework.util.MethodInvoker;
- /**
- * Subclass of MethodInvoker that tries to convert the given arguments
- * for the actual target method via BeanWrapperImpl.
- * @author Juergen Hoeller
- * @since 09.06.2004
- * @see org.springframework.beans.BeanWrapperImpl#doTypeConversionIfNecessary
- */
- public class ArgumentConvertingMethodInvoker extends MethodInvoker {
- private final BeanWrapperImpl beanWrapper = new BeanWrapperImpl();
- /**
- * Register the given custom property editor for all properties
- * of the given type.
- * @param requiredType type of the property
- * @param propertyEditor editor to register
- * @see org.springframework.beans.BeanWrapper#registerCustomEditor
- */
- public void registerCustomEditor(Class requiredType, PropertyEditor propertyEditor) {
- this.beanWrapper.registerCustomEditor(requiredType, propertyEditor);
- }
- public void prepare() throws ClassNotFoundException, NoSuchMethodException {
- super.prepare();
- // try to convert the arguments for the chosen method
- Class[] requiredTypes = getPreparedMethod().getParameterTypes();
- Object[] arguments = getArguments();
- Object[] convertedArguments = new Object[arguments.length];
- for (int i = 0; i < arguments.length; i++) {
- convertedArguments[i] = this.beanWrapper.doTypeConversionIfNecessary(arguments[i], requiredTypes[i]);
- }
- setArguments(convertedArguments);
- }
- }