Make the given field accessible, explicitly setting it accessible if necessary. - Android java.lang.reflect

Android examples for java.lang.reflect:Field

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Description

Make the given field accessible, explicitly setting it accessible if necessary.

Demo Code

/*/*from  w  w  w.  j a v a  2s .c  om*/
 * Copyright 2002-2009 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.Constructor;
import java.lang.reflect.Field;

import java.lang.reflect.Method;
import java.lang.reflect.Modifier;

public class Main {
    /**
     * Make the given field accessible, explicitly setting it accessible if
     * necessary. The <code>setAccessible(true)</code> method is only called
     * when actually necessary, to avoid unnecessary conflicts with a JVM
     * SecurityManager (if active).
     * @param field the field to make accessible
     * @see java.lang.reflect.Field#setAccessible
     */
    public static void makeAccessible(Field field) {
        if ((!Modifier.isPublic(field.getModifiers()) || !Modifier
                .isPublic(field.getDeclaringClass().getModifiers()))
                && !field.isAccessible()) {
            field.setAccessible(true);
        }
    }

    /**
     * Make the given method accessible, explicitly setting it accessible if
     * necessary. The <code>setAccessible(true)</code> method is only called
     * when actually necessary, to avoid unnecessary conflicts with a JVM
     * SecurityManager (if active).
     * @param method the method to make accessible
     * @see java.lang.reflect.Method#setAccessible
     */
    public static void makeAccessible(Method method) {
        if ((!Modifier.isPublic(method.getModifiers()) || !Modifier
                .isPublic(method.getDeclaringClass().getModifiers()))
                && !method.isAccessible()) {
            method.setAccessible(true);
        }
    }

    /**
     * Make the given constructor accessible, explicitly setting it accessible
     * if necessary. The <code>setAccessible(true)</code> method is only called
     * when actually necessary, to avoid unnecessary conflicts with a JVM
     * SecurityManager (if active).
     * @param ctor the constructor to make accessible
     * @see java.lang.reflect.Constructor#setAccessible
     */
    public static void makeAccessible(Constructor<?> ctor) {
        if ((!Modifier.isPublic(ctor.getModifiers()) || !Modifier
                .isPublic(ctor.getDeclaringClass().getModifiers()))
                && !ctor.isAccessible()) {
            ctor.setAccessible(true);
        }
    }
}

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