get a map of public setters (propertyName -> Method) - Java Reflection

Java examples for Reflection:Setter

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Description

get a map of public setters (propertyName -> Method)

Demo Code

/*//from  w  w w. j  a va 2s . com
 * Copyright 2008-2009 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 com.java2s;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Map;

public class Main {

    /**
     * get a map of public setters (propertyName -> Method)
     * 
     * @param clazz
     * @return
     */
    public static Map<String, Method> getSetters(Class<?> clazz) {
        Map<String, Method> setters = new HashMap<String, Method>();
        Method[] methods = clazz.getMethods();
        for (Method method : methods) {
            String methodName = method.getName();
            if (method.getParameterTypes().length == 1
                    && methodName.startsWith("set")
                    && methodName.length() > 3
                    && method.getReturnType() == Void.TYPE) {
                String propertyName = methodName.substring(3, 4)
                        .toLowerCase();
                if (methodName.length() > 4) {
                    propertyName += methodName.substring(4);
                }
                setters.put(propertyName, method);
            }
        }
        return setters;
    }
}

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