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Java Source Code / Java Documentation » IDE Eclipse » ui workbench » org.eclipse.ui

Source Cross Reference Class Diagram Java Document (Java Doc)

org.eclipse.ui .ISourceProvider

All known Subclasses:   org.eclipse.ui .AbstractSourceProvider,
ISourceProvider
public interface ISourceProvider (Code)

A provider of notifications for when a change has occurred to a particular type of source. These providers can be given to the appropriate service, and this service will then re-evaluate the appropriate pieces of its internal state in response to these changes.

It is recommended that clients subclass AbstractSourceProvider instead, as this provides some common support for listeners.

since:
   3.1
See Also:   org.eclipse.ui.handlers.IHandlerService
See Also:   org.eclipse.ui.ISources

Method Summary
public void addSourceProviderListener(ISourceProviderListener listener)
     Adds a listener to this source provider.
public void dispose()
     Allows the source provider an opportunity to clean up resources (e.g., listeners) before being released.
public Map getCurrentState()
     Returns the current state of the sources tracked by this provider.
public String[] getProvidedSourceNames()
     Returns the names of those sources provided by this class.
public void removeSourceProviderListener(ISourceProviderListener listener)
     Removes a listener from this source provider.

Method Detail
addSourceProviderListener
public void addSourceProviderListener(ISourceProviderListener listener)(Code)
Adds a listener to this source provider. This listener will be notified whenever the corresponding source changes.
Parameters:
  listener - The listener to add; must not be null.

dispose
public void dispose()(Code)
Allows the source provider an opportunity to clean up resources (e.g., listeners) before being released. This method should be called by the creator after the source provider has been removed from all the services with which it was registered.

getCurrentState
public Map getCurrentState()(Code)
Returns the current state of the sources tracked by this provider. This is used to provide a view of the world if the event loop is busy and things are some state has already changed. A map of variable names (String) to variablevalues (Object). This may be empty, and may benull.

getProvidedSourceNames
public String[] getProvidedSourceNames()(Code)
Returns the names of those sources provided by this class. This is used by clients of source providers to determine which source providers they actually need. An array of source names. This value should never benull or empty.

removeSourceProviderListener
public void removeSourceProviderListener(ISourceProviderListener listener)(Code)
Removes a listener from this source provider. This listener will be notified whenever the corresponding source changes.
Parameters:
  listener - The listener to remove; must not be null.

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