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Extensible Match Filters in the Directory Server
Directory Server 6.x and earlier versions already include support for certain
matching rules (which are used to determine the collation order and operator for
searches of international data).
You can enable the Directory Server to handle your own matching rules for
extensible match searches by defining your own matching rules plug-ins and
registering them with the server.
You can also build indexes to improve the performance of search operations that
use extended match filters.
Understanding Matching Rule Plug-Ins
A matching rule plug-in can create filters that the server can use when handling
extensible search filters. A matching rule plug-in can also create indexers to index
entries for extensible searches.
Functions Defined in Matching Rule Plug-Ins
The matching rule plug-in consists of the following:
•
An indexer function (optional)
•
A filter function
•
A filter function that uses the index to speed up searches (optional)
•
A function to destroy a filter (optional)
•
A function to destroy an indexer (optional)
•
A factory function to create filters
•
A factory function to create indexers (optional)
•
A close function to clean up before server shutdown (optional)
•
An initialization function to register the factory functions and the close
function
Understanding Matching Rule Plug-Ins
Chapter 11
Writing Matching Rule Plug-Ins
125
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