org.openrdf.sail.lucene

Class QuerySpecBuilder

java.lang.Object

org.openrdf.sail.lucene.QuerySpecBuilder

public class QuerySpecBuilder
extends Object

A QueryInterpreter creates a set of QuerySpecs based on Lucene-related StatementPatterns that it finds in a TupleExpr.

QuerySpecs will only be created when the set of StatementPatterns is complete (i.e. contains at least a matches and a query statement connected properly) and correct (query pattern has a literal object, matches a resource subject, etc.).

Constructor Summary

Constructors

Constructor and Description
QuerySpecBuilder(boolean incompleteQueryFails) Initialize a new QuerySpecBuilder

Method Summary

Modifier and Type	Method and Description
Set<QuerySpec>	process(TupleExpr tupleExpr, BindingSet bindings) Returns a set of QuerySpecs embodying all necessary information to perform the Lucene query embedded in a TupleExpr.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

QuerySpecBuilder

public QuerySpecBuilder(boolean incompleteQueryFails)

Initialize a new QuerySpecBuilder

Parameters:

incompleteQueryFails - see LuceneSail.isIncompleteQueryFails()

Method Detail

process

public Set<QuerySpec> process(TupleExpr tupleExpr,
                              BindingSet bindings)
                       throws SailException

Returns a set of QuerySpecs embodying all necessary information to perform the Lucene query embedded in a TupleExpr.

Throws:

SailException