Java example source code file (LangReflectAccess.java)

This example Java source code file (LangReflectAccess.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

class, constructoraccessor, field, langreflectaccess, method, methodaccessor, reflection, string

The LangReflectAccess.java Java example source code

/*
 * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package sun.reflect;

import java.lang.reflect.*;

/** An interface which gives privileged packages Java-level access to
    internals of java.lang.reflect. */

public interface LangReflectAccess {
    /** Creates a new java.lang.reflect.Field. Access checks as per
        java.lang.reflect.AccessibleObject are not overridden. */
    public Field newField(Class<?> declaringClass,
                          String name,
                          Class<?> type,
                          int modifiers,
                          int slot,
                          String signature,
                          byte[] annotations);

    /** Creates a new java.lang.reflect.Method. Access checks as per
      java.lang.reflect.AccessibleObject are not overridden. */
    public Method newMethod(Class<?> declaringClass,
                            String name,
                            Class<?>[] parameterTypes,
                            Class<?> returnType,
                            Class<?>[] checkedExceptions,
                            int modifiers,
                            int slot,
                            String signature,
                            byte[] annotations,
                            byte[] parameterAnnotations,
                            byte[] annotationDefault);

    /** Creates a new java.lang.reflect.Constructor. Access checks as
      per java.lang.reflect.AccessibleObject are not overridden. */
    public <T> Constructor newConstructor(Class declaringClass,
                                             Class<?>[] parameterTypes,
                                             Class<?>[] checkedExceptions,
                                             int modifiers,
                                             int slot,
                                             String signature,
                                             byte[] annotations,
                                             byte[] parameterAnnotations);

    /** Gets the MethodAccessor object for a java.lang.reflect.Method */
    public MethodAccessor getMethodAccessor(Method m);

    /** Sets the MethodAccessor object for a java.lang.reflect.Method */
    public void setMethodAccessor(Method m, MethodAccessor accessor);

    /** Gets the ConstructorAccessor object for a
        java.lang.reflect.Constructor */
    public ConstructorAccessor getConstructorAccessor(Constructor<?> c);

    /** Sets the ConstructorAccessor object for a
        java.lang.reflect.Constructor */
    public void setConstructorAccessor(Constructor<?> c,
                                       ConstructorAccessor accessor);

    /** Gets the byte[] that encodes TypeAnnotations on an Executable. */
    public byte[] getExecutableTypeAnnotationBytes(Executable ex);

    /** Gets the "slot" field from a Constructor (used for serialization) */
    public int getConstructorSlot(Constructor<?> c);

    /** Gets the "signature" field from a Constructor (used for serialization) */
    public String getConstructorSignature(Constructor<?> c);

    /** Gets the "annotations" field from a Constructor (used for serialization) */
    public byte[] getConstructorAnnotations(Constructor<?> c);

    /** Gets the "parameterAnnotations" field from a Constructor (used for serialization) */
    public byte[] getConstructorParameterAnnotations(Constructor<?> c);

    //
    // Copying routines, needed to quickly fabricate new Field,
    // Method, and Constructor objects from templates
    //

    /** Makes a "child" copy of a Method */
    public Method      copyMethod(Method arg);

    /** Makes a "child" copy of a Field */
    public Field       copyField(Field arg);

    /** Makes a "child" copy of a Constructor */
    public <T> Constructor copyConstructor(Constructor arg);
}