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Spring Framework example source code file (GenericTypeAwarePropertyDescriptor.java)
The Spring Framework GenericTypeAwarePropertyDescriptor.java source code/* * Copyright 2002-2008 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; import java.beans.IntrospectionException; import java.beans.PropertyDescriptor; import java.lang.reflect.Method; import org.springframework.core.GenericTypeResolver; import org.springframework.core.MethodParameter; /** * Extension of the standard JavaBeans PropertyDescriptor class, * overriding <code>getPropertyType() such that a generically * declared type will be resolved against the containing bean class. * * @author Juergen Hoeller * @since 2.5.2 */ class GenericTypeAwarePropertyDescriptor extends PropertyDescriptor { private final Class beanClass; private Class resolvedPropertyType; private MethodParameter writeMethodParameter; public GenericTypeAwarePropertyDescriptor(Class beanClass, String propertyName, Method readMethod, Method writeMethod, Class propertyEditorClass) throws IntrospectionException { super(propertyName, readMethod, writeMethod); setPropertyEditorClass(propertyEditorClass); this.beanClass = beanClass; } public synchronized Class getPropertyType() { if (this.resolvedPropertyType == null) { Class propertyType = super.getPropertyType(); Method readMethod = getReadMethod(); if (readMethod != null) { this.resolvedPropertyType = GenericTypeResolver.resolveReturnType(readMethod, this.beanClass); } else { MethodParameter writeMethodParam = getWriteMethodParameter(); if (writeMethodParam != null) { this.resolvedPropertyType = writeMethodParam.getParameterType(); } else { this.resolvedPropertyType = propertyType; } } } return this.resolvedPropertyType; } public synchronized MethodParameter getWriteMethodParameter() { Method writeMethod = getWriteMethod(); if (writeMethod == null) { return null; } if (this.writeMethodParameter == null) { this.writeMethodParameter = new MethodParameter(writeMethod, 0); GenericTypeResolver.resolveParameterType(this.writeMethodParameter, this.beanClass); } return this.writeMethodParameter; } } Other Spring Framework examples (source code examples)Here is a short list of links related to this Spring Framework GenericTypeAwarePropertyDescriptor.java source code file: |
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