All Known Subinterfaces:
public interface ISearchEngine
A search engine that is a participant in the help search. All engines
selected by the user to run are executed as background jobs using the same
search expression. Engine is expected to accept the expression and the scope
object. The results should be passed to the result collector object, and the
search progress should be tracked by the progress monitor.
Search engines that have API access to the search server can provide a list
of individual search results. Search engines for which only the URL is known
are expected to return one search result containing a URL that is sufficient
to open a web browser and see the search results there.
Search engine must be cancelable.
This interface is intended to be implemented by clients.
query - the search expression
scope - the engine-specific scope object that is used to narrow the
null if the default scope is assumed.
collector - the search result collector handles results as they arrive
monitor - progress monitor to track the search progress
- when there are problems in the engine
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