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/*
* 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.
*/
/*
* Copyright (C) 2008 The Android Open Source Project
*
* 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 java.lang.reflect;
import java.lang.annotation.Annotation;
/**
* {@code AccessibleObject} is the superclass of all member reflection classes
* (Field, Constructor, Method). AccessibleObject provides the ability to toggle
* a flag controlling access checks for these objects. By default, accessing a
* member (for example, setting a field or invoking a method) checks the
* validity of the access (for example, invoking a private method from outside
* the defining class is prohibited) and throws IllegalAccessException if the
* operation is not permitted. If the accessible flag is set to true, these
* checks are omitted. This allows privileged code, such as Java object
* serialization, object inspectors, and debuggers to have complete access to
* objects.
*
* @see Field
* @see Constructor
* @see Method
*/
public class AccessibleObject implements AnnotatedElement {
protected AccessibleObject() {
}
/**
* If true, object is accessible, bypassing normal access checks
*/
private boolean flag = false;
/**
* Returns true if this object is accessible without access checks.
*/
public boolean isAccessible() {
return flag;
}
/**
* Attempts to set the accessible flag. Setting this to true prevents {@code
* IllegalAccessExceptions}.
*/
public void setAccessible(boolean flag) {
this.flag = flag;
}
/**
* Attempts to set the accessible flag for all objects in {@code objects}.
* Setting this to true prevents {@code IllegalAccessExceptions}.
*/
public static void setAccessible(AccessibleObject[] objects, boolean flag) {
for (AccessibleObject object : objects) {
object.flag = flag;
}
}
@Override public boolean isAnnotationPresent(Class<? extends Annotation> annotationType) {
throw new UnsupportedOperationException();
}
@Override public Annotation[] getDeclaredAnnotations() {
throw new UnsupportedOperationException();
}
@Override public Annotation[] getAnnotations() {
// for all but Class, getAnnotations == getDeclaredAnnotations
return getDeclaredAnnotations();
}
@Override public <T extends Annotation> T getAnnotation(Class<T> annotationType) {
throw new UnsupportedOperationException();
}
}
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