Package org.eclipse.equinox.p2.query

Provides common classes for the query mechanism.

Package Specification

This package provide low level infrastructure for querying collections of metadata. Additional queries can be found in the org.eclipse.equinox.p2.metadata.query package and more domain specific queries can be found in the touchpoints.

Since:

2.0

Interface Summary

Interface	Description
IMatchQuery<T>	Deprecated. If possible, use one of the predefined queries in QueryUtil or use the QueryUtil.createMatchQuery(String, Object...) to create a custom expression based query.
IQuery<T>	The root interface for all queries that can be performed on an IQueryable.
IQueryable<T>	An IQueryable contains objects, and is able to perform queries on those objects.
IQueryResult<T>	An IQueryResult represents the results of a query.

Class Summary

Class	Description
CollectionResult<T>	This class allows to adapt java collections to a p2 a query result and as such something queryable
Collector<T>	A collector is a generic visitor that collects objects passed to it, and can then express the result of the visit in various forms.
CompoundQueryable<T>	A queryable that holds a number of other IQueryables and provides a mechanism for querying the entire set.
ExpressionMatchQuery<T>	A query that matches candidates against an expression.
ExpressionQuery<T>	A query that evaluates using an iterator as input and produces a new iterator.
MatchQuery<T>	Deprecated. If possible, use one of the predefined queries in QueryUtil or use the QueryUtil.createMatchQuery(String, Object...) to create a custom expression based query.
QueryUtil	Helper class for query related tasks.