net.javamud.data
Class MORegistry

java.lang.Object
  |
  +--net.javamud.data.MORegistry

public class MORegistry

extends Object

MudObject Registry

Author:

Timothy Hinchcliffe

Created On:

11 May 2002

Nested Class Summary

private class

MORegistry.MORIterator Iterator for MORegistry

Field Summary

private Map	bwdMap Backward Map - MudObject->Identity
private Map	fwdMap Forward Map - Identity->MudObject

Constructor Summary

MORegistry()
Constructor for the MORegistry object

Method Summary

void	add(MudObject object) Add a MudObject to registry.
boolean	contains(MudObject object) Return true if registry contains the MudObject.
boolean	contains(String identity) Returns true if registry contains the MudObject identified by identity.
String	get(MudObject object) Get (registered) identity of MudObject
MudObject	get(String identity) Get MudObject associated with identity
Iterator	iterator() Returns an Iterator for this object.
String	remove(MudObject object) Remove object from the registry
MudObject	remove(String identity) Remove identity from the registry

Methods inherited from class java.lang.Object

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

Field Detail

bwdMap

private Map bwdMap

Backward Map - MudObject->Identity

fwdMap

private Map fwdMap

Forward Map - Identity->MudObject

Constructor Detail

MORegistry

public MORegistry()

Constructor for the MORegistry object

Method Detail

get

public MudObject get(String identity)

Get MudObject associated with identity

Parameters:

identity - Which MudObject to return

Returns:

The requested MudObject or null

get

public String get(MudObject object)

Get (registered) identity of MudObject

Parameters:

object - MudObject to check

Returns:

Registered identity

add

public void add(MudObject object)
         throws DuplicateIdentityException

Add a MudObject to registry. If object is registered with a different Identity, then that registration is removed and this one added.

Parameters:

object - MudObject to add

Throws:

DuplicateIdentityException - Thrown if object.getIdentity() returns the same as the Identity registered for a different object.

contains

public boolean contains(String identity)

Returns true if registry contains the MudObject identified by identity.

Parameters:

identity - Item to search for

Returns:

If found

See Also:

Set.contains(Object)

contains

public boolean contains(MudObject object)

Return true if registry contains the MudObject.

Parameters:

object - Item to search for

Returns:

If found

See Also:

Set.contains(Object)

iterator

public Iterator iterator()

Returns an Iterator for this object. Don't mess with MORegistry while using Iterator except through Iterator functions as I'm not sure what'll happen but it's bound to be nasty.

Returns:

the Iterator

remove

public String remove(MudObject object)

Remove object from the registry

Parameters:

object - MudObject to remove

Returns:

registered identity of object

remove

public MudObject remove(String identity)

Remove identity from the registry

Parameters:

identity - Identity of MudObject to remove

Returns:

MudObject associated with identity