Java tutorial
//package com.java2s; /** * 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. */ import java.beans.BeanInfo; import java.beans.IntrospectionException; import java.beans.Introspector; import java.beans.PropertyDescriptor; import java.util.HashMap; import java.util.Map; public class Main { public static void makeTransient(Class<?> beanClass, String... pdNames) { try { BeanInfo info = Introspector.getBeanInfo(beanClass); PropertyDescriptor[] descs = info.getPropertyDescriptors(); if (descs == null) { throw new RuntimeException("Cannot access property descriptor for class " + beanClass); } Map<String, PropertyDescriptor> mapping = new HashMap<String, PropertyDescriptor>(); for (PropertyDescriptor desc : descs) { mapping.put(desc.getName(), desc); } for (String pdName : pdNames) { PropertyDescriptor desc = mapping.get(pdName); if (desc == null) { throw new RuntimeException("Property " + pdName + " does not exist in " + beanClass); } desc.setValue("transient", Boolean.TRUE); } } catch (IntrospectionException ie) { throw new RuntimeException(ie); } } }