A listener to changes in a particular source of information. This listener is
notified as the source changes. Typically, workbench services will implement
this interface, and register themselves as listeners to the
ISourceProvider instances that are registered with them.
(int sourcePriority, Map sourceValuesByName)Handles a change to multiple sources. The source priority should be a bit mask indicating the sources. The map will be used to construct the variables on an
sourcePriority- A bit mask of all the source priorities that have changed.
sourceValuesByName- A mapping of the source names (
String) to the source values (
Object). The names should never be
null, but the values may be. The map must not be
null, and should contain at least two elements (one for each source).
- See Also:
sourceChangedHandles a change to one source. The source priority should indicate the source, and the name-value pair will be used to create an
IEvaluationContextwith a single variable.