uka.transport
Class DefaultObjectSpace

java.lang.Object
  uka.util.IDConstants
      uka.util.IDMap
          uka.transport.DefaultObjectSpace

All Implemented Interfaces:

ObjectSpace, Printable, java.io.Serializable

Direct Known Subclasses:

DefaultSharedObjectSpace

public class DefaultObjectSpace

extends IDMap

implements ObjectSpace

See Also:

Serialized Form

Field Summary

Fields inherited from class uka.util.IDMap

idToObject, INVALID_INDEX, space

Fields inherited from class uka.util.IDConstants

FIRST_NEW_ID, FIRST_VALID_ID, INVALID_ID, UNUSED_ID

Constructor Summary

DefaultObjectSpace()

Method Summary

int	getID(java.lang.Object obj) Returns the identifier for a given object.
void	includeID(int id) Make the object that corresponds to the given identifier part of this object space.
boolean	isAccepted(int id) Decides whether an object reference should be blocked during transmission through a MarshalStream/UnmarshalStream pair.
boolean	isIncluded(int id) Decides whether the obect that corresponds to the given identifier is part of this object space.
boolean	isShared(int id)

Methods inherited from class uka.util.IDMap

appendTo, clear, dump, findID, get, getHash, getIndexForHash, getIndexForID, getObject, getObjects, getSize, getUsedIDs, isUsed, rawFindID, remove, resetObject, restoreBeforeReadObject, set, setObject

Methods inherited from class uka.util.IDConstants

isNew, isValid, normalizeID, toggleNew

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface uka.transport.ObjectSpace

clear, findID, getObject, getUsedIDs, isUsed, remove, resetObject, setObject

Constructor Detail

DefaultObjectSpace

public DefaultObjectSpace()

Method Detail

includeID

public void includeID(int id)

Description copied from interface: ObjectSpace

Make the object that corresponds to the given identifier part of this object space. An object is part of an object space, if the ObjectSpace.isIncluded(int) method returns true for the corresponding identifier. An object can have an assigned identifier in some object space without being part of that object space.

Specified by:

includeID in interface ObjectSpace

Returns:

the identifier assigned to the object passed as parameter.

getID

public int getID(java.lang.Object obj)

Description copied from interface: ObjectSpace

Returns the identifier for a given object. If the object was presented to the ObjectSpace the first time, the #isNew method returns true for the resulting identifier.

Specified by:

getID in interface ObjectSpace

Overrides:

getID in class IDMap

isIncluded

public boolean isIncluded(int id)

Description copied from interface: ObjectSpace

Decides whether the obect that corresponds to the given identifier is part of this object space.

Specified by:

isIncluded in interface ObjectSpace

Returns:

whether the object that corresponds to the given identifier is part of this object space.

See Also:

ObjectSpace.includeID(int)

isShared

public boolean isShared(int id)

Specified by:

isShared in interface ObjectSpace

Returns:

whether the object that corresponds to the given identifier is a shared object.

isAccepted

public boolean isAccepted(int id)

Description copied from interface: ObjectSpace

Decides whether an object reference should be blocked during transmission through a MarshalStream/UnmarshalStream pair. If a call to ObjectSpace.isAccepted(int) on the ObjectSpace of the sender-side stream returns false for an object identifier, a reference to the corresponding object is blocked (replaced with null).

Specified by:

isAccepted in interface ObjectSpace

Returns:

whether references to the corresponding object should be marshaled or blocked.