gnu.classpath.jdwp
Class VMIdManager
This class manages objects and referencetypes that are reported
to the debugger. All objects and referencetypes reported to the
debugger should go through this manager.
A brief summary of what an IdManager must provide:
public ObjectId getObjectId (Object theObject);
public ObjectId get (long id);
public ObjectId readObjectId (ByteBuffer bb);
public ReferenceTypeId getReferenceTypeId (Class clazz);
public ReferenceTypeId getReferenceType (long id);
public ReferenceTypeId readReferenceTypeId (ByteBuffer bb);
See the javadoc on these methods later in this file for more
information on these functions.
NOTE: All IDs handled by the ID manager (all object and reference
type IDs) are assumed to be of type long.
NOTE: This class does not manage virtual machine-specific types,
like methods, fields, and frames. These already have unique IDs within
the virtual machine and do not need further abstraction here.
clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait |
get
public ObjectId get(long id)
throws InvalidObjectException Returns the JdwpId for a given ID. Unlike
getId, it throws an exception if the ID is not
known.
id - the numerical ID of the desired JdwpId
getDefault
public static VMIdManager getDefault()
Gets the instance of VMIdManager, constructing a new one
if none currently exists.
getObjectId
public ObjectId getObjectId(Object theObject)
Returns an id for the given object, adding it
if it does not have an id.
theObject - the object to get an ID/add
getReferenceType
public ReferenceTypeId getReferenceType(long id)
throws InvalidClassException Returns the ReferenceTypeId for a given ID. Unlike
getReferenceTypeId, it throws an exception if the ID is not
known.
id - the numerical ID of the desired reference type
getReferenceTypeId
public ReferenceTypeId getReferenceTypeId(Class<T> clazz)
Gets the reference type id for the given class, creating
a new one if it does not already have an id
clazz - the class for which to get an ID
VMIdManager.java -- A reference/example implementation of a manager for
JDWP object/reference type IDs
Copyright (C) 2005, 2006, 2007 Free Software Foundation
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