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An instance of this interface can be obtained from an instance of
IActivityManager
for any identifier.
An IIdentifier
is an object that offers an easy means to
determine if a given string matches the pattern bindings of any IActivity
objects. Additionaly, one may query if an identifier is enabled. An
identifier is always considered enabled unless it matches only disabled activities.
The handle-based nature of this API allows it to work well with runtime plugin activation and deactivation, which can cause dynamic changes to the extension registry.
This interface is not intended to be extended or implemented by clients.
IActivityManager.getIdentifier(String)
Method Summary | |
---|---|
void |
addIdentifierListener(IIdentifierListener identifierListener)
Registers an instance of IIdentifierListener to listen
for changes to properties of this instance. |
Set |
getActivityIds()
Returns the set of activity ids that this instance matches. |
String |
getId()
Returns the identifier of this instance. |
boolean |
isEnabled()
Returns whether or not this instance is enabled. |
void |
removeIdentifierListener(IIdentifierListener identifierListener)
Removes an instance of IIdentifierListener listening
for changes to properties of this instance. |
Methods inherited from interface java.lang.Comparable |
---|
compareTo |
Method Detail |
public void addIdentifierListener(IIdentifierListener identifierListener)
IIdentifierListener
to listen
for changes to properties of this instance.
identifierListener
- the instance to register. Must not be null
.
If an attempt is made to register an instance which is
already registered with this instance, no operation is
performed.public Set getActivityIds()
getId()
.
Notification is sent to all registered listeners if this property changes.
null
. If
this set is not empty, it is guaranteed to only contain
instances of String
.public String getId()
null
.public boolean isEnabled()
Notification is sent to all registered listeners if this property changes.
true
, iff this instance is enabled.public void removeIdentifierListener(IIdentifierListener identifierListener)
IIdentifierListener
listening
for changes to properties of this instance.
identifierListener
- the instance to remove. Must not be null
.
If an attempt is made to remove an instance which is not
already registered with this instance, no operation is
performed.
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Guidelines for using Eclipse APIs.
Copyright (c) IBM Corp. and others 2000, 2005. All rights reserved.