/* * Copyright (c) 1998, 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 com.sun.jdi; /** * An entity declared within a user defined * type (class or interface). * This interface is the root of the type * component hierarchy which * includes {@link Field} and {@link Method}. * Type components of the same name declared in different classes * (including those related by inheritance) have different * TypeComponent objects. * TypeComponents can be used alone to retrieve static information * about their declaration, or can be used in conjunction with a * {@link ReferenceType} or {@link ObjectReference} to access values * or invoke, as applicable. * * @author Robert Field * @author Gordon Hirsch * @author James McIlree * @since 1.3 */ public interface TypeComponent extends Mirror, Accessible { /** * Gets the name of this type component. *
* Note: for fields, this is the field name; for methods,
* this is the method name; for constructors, this is <init>;
* for static initializers, this is <clinit>.
*
* @return a string containing the name.
*/
String name();
/**
* Gets the
* type signature for this type component. The
* signature is encoded type information as defined
* in the JNI documentation. It is a convenient, compact format for
* for manipulating type information internally, not necessarily
* for display to an end user. See {@link Field#typeName} and
* {@link Method#returnTypeName} for ways to help get a more readable
* representation of the type.
*
* @return a string containing the signature
*/
String signature();
/**
* Gets the generic signature for this TypeComponent if there is one.
* Generic signatures are described in the
* The Java Virtual Machine Specification.
*
* @return a string containing the generic signature, or null
* if there is no generic signature.
*
* @since 1.5
*/
String genericSignature();
/**
* Returns the type in which this component was declared. The
* returned {@link ReferenceType} mirrors either a class or an
* interface in the target VM.
*
* @return a {@link ReferenceType} for the type that declared
* this type component.
*/
ReferenceType declaringType();
/**
* Determines if this TypeComponent is static.
* Return value is undefined for constructors and static initializers.
*
* @return true
if this type component was declared
* static; false otherwise.
*/
boolean isStatic();
/**
* Determines if this TypeComponent is final.
* Return value is undefined for constructors and static initializers.
*
* @return true
if this type component was declared
* final; false otherwise.
*/
boolean isFinal();
/**
* Determines if this TypeComponent is synthetic. Synthetic members
* are generated by the compiler and are not present in the source
* code for the containing class.
*
* Not all target VMs support this query. See
* {@link VirtualMachine#canGetSyntheticAttribute} to determine if the
* operation is supported.
*
* @return true
if this type component is synthetic;
* false
otherwise.
* @throws java.lang.UnsupportedOperationException if the target
* VM cannot provide information on synthetic attributes.
*/
boolean isSynthetic();
}