uk.ac.soton.ecs.iam.grid.client.staterepos
Class MemoryStateRepository

java.lang.Object
  uk.ac.soton.ecs.iam.grid.client.staterepos.AbstractStateRepository
      uk.ac.soton.ecs.iam.grid.client.staterepos.MemoryStateRepository

All Implemented Interfaces:

StateRepository

Direct Known Subclasses:

FileStateRepository

public class MemoryStateRepository
extends AbstractStateRepository

This is the simplest available StateRepository, which does no long-term storage. It is mainly useful for testing.

Field Summary

protected HashMap<URL,StorableInStateRepository>	objects
protected Hashtable<QName,String>	properties

Fields inherited from class uk.ac.soton.ecs.iam.grid.client.staterepos.AbstractStateRepository

log

Constructor Summary

MemoryStateRepository()

Method Summary

protected void	addObjectInternal(StorableInStateRepository object)
void	checkForUpdates() Since a MemoryStateRepository is always up-to-date, this method does nothing.
protected void	deleteConversation(Conversation conversation) Remove conversation from the StateRepository.
void	dump() For debugging
StorableInStateRepository[]	getAll() Returns all items in the state repository
StorableInStateRepository[]	getByParent(URL parentID) Returns a list of all children of the given conversation.
<T extends StorableInStateRepository> T[]	getByType(Class<T> type)
Conversation	getConversationByID(URL cid) Returns the Conversation object corresponding to the given URL.
<T extends Conversation> T[]	getConversationsByType(Class<T> type) Return all conversations of the given type (a subclass of Conversation).
StorableInStateRepository	getObject(URL id) Get an object based on its URL.
String	getProperty(QName name) Get a property set with setProperty.
StorableInStateRepository[]	getToplevel() Returns an array of all top-level object (those whose parent is null).
protected void	notifyChangedInternal(StorableInStateRepository object)
protected void	removeObjectInternal(StorableInStateRepository object)
void	setProperty(QName name, String value) Set a general property on the repository.

Methods inherited from class uk.ac.soton.ecs.iam.grid.client.staterepos.AbstractStateRepository

addListener, addObject, getAccountConversations, getOrCreateObject, getOrCreateObject, instantiateObject, instantiateObject, notifyChanged, notifyChanged, notifyListeners, notifyListeners, removeListener, removeObject

Methods inherited from class java.lang.Object

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

Field Detail

objects

protected HashMap<URL,StorableInStateRepository> objects

properties

protected Hashtable<QName,String> properties

Constructor Detail

MemoryStateRepository

public MemoryStateRepository()

Method Detail

getConversationByID

public Conversation getConversationByID(URL cid)
                                 throws NoSuchConversation

Description copied from interface: StateRepository

Returns the Conversation object corresponding to the given URL.

Specified by:

getConversationByID in interface StateRepository

Specified by:

getConversationByID in class AbstractStateRepository

Throws:

NoSuchConversation

getObject

public StorableInStateRepository getObject(URL id)
                                    throws NoSuchConversation

Description copied from interface: StateRepository

Get an object based on its URL.

Throws:

NoSuchConversation - if no object has this ID.

getConversationsByType

public <T extends Conversation> T[] getConversationsByType(Class<T> type)

Description copied from interface: StateRepository

Return all conversations of the given type (a subclass of Conversation).

getByType

public <T extends StorableInStateRepository> T[] getByType(Class<T> type)

getToplevel

public StorableInStateRepository[] getToplevel()

Description copied from interface: StateRepository

Returns an array of all top-level object (those whose parent is null).

getAll

public StorableInStateRepository[] getAll()

Description copied from interface: StateRepository

Returns all items in the state repository

Specified by:

getAll in interface StateRepository

Specified by:

getAll in class AbstractStateRepository

getByParent

public StorableInStateRepository[] getByParent(URL parentID)
                                        throws NoSuchConversation

Description copied from interface: StateRepository

Returns a list of all children of the given conversation.

Specified by:

getByParent in interface StateRepository

Specified by:

getByParent in class AbstractStateRepository

Throws:

NoSuchConversation

addObjectInternal

protected void addObjectInternal(StorableInStateRepository object)
                          throws ObjectAlreadyExists

Specified by:

addObjectInternal in class AbstractStateRepository

Throws:

ObjectAlreadyExists

deleteConversation

protected void deleteConversation(Conversation conversation)
                           throws NoSuchConversation

Description copied from class: AbstractStateRepository

Remove conversation from the StateRepository. This is overridden by subclasses of AbstractStateRepository. It implements the behaviour of removeConversation, but does not call notifyListeners at the end.

Specified by:

deleteConversation in class AbstractStateRepository

Throws:

NoSuchConversation

removeObjectInternal

protected void removeObjectInternal(StorableInStateRepository object)
                             throws NoSuchConversation

Specified by:

removeObjectInternal in class AbstractStateRepository

Throws:

NoSuchConversation

dump

public void dump()

Description copied from class: AbstractStateRepository

For debugging

Specified by:

dump in class AbstractStateRepository

notifyChangedInternal

protected void notifyChangedInternal(StorableInStateRepository object)

Specified by:

notifyChangedInternal in class AbstractStateRepository

checkForUpdates

public void checkForUpdates()

Since a MemoryStateRepository is always up-to-date, this method does nothing.

Specified by:

checkForUpdates in interface StateRepository

Overrides:

checkForUpdates in class AbstractStateRepository

setProperty

public void setProperty(QName name,
                        String value)

Description copied from interface: StateRepository

Set a general property on the repository. This is saved with the object inside the repository. Calls notifyChanged.

Parameters:

name - a unique name for the property

value - the value of the property (null to unset)

getProperty

public String getProperty(QName name)

Description copied from interface: StateRepository

Get a property set with setProperty.

Parameters:

name - the name passed to setProperty

Returns:

the value passed to setProperty, or null if not set