edu.rpi.twc.sesamestream.impl

Class Query

java.lang.Object

edu.rpi.twc.sesamestream.impl.Query

public class Query
extends Object

SesameStream's internal representation of a SPARQL query

Author:

Joshua Shinavier (http://fortytwo.net)

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Query.QueryForm Any of the four SPARQL query forms

Constructor Summary

Constructors

Constructor and Description
Query(org.openrdf.query.algebra.TupleExpr expr, QueryEngineImpl.TriplePatternDeduplicator deduplicator)

Method Summary

Modifier and Type	Method and Description
Set<String>	getBindingNames()
Set<org.openrdf.query.Binding>	getConstants()
Map<String,String>	getExtendedBindingNames()
List<org.openrdf.query.algebra.Filter>	getFilters()
LList<TriplePattern>	getGraphPattern()
Query.QueryForm	getQueryForm()
SolutionSequenceModifier	getSequenceModifier()

Methods inherited from class java.lang.Object

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

Constructor Detail

Query

public Query(org.openrdf.query.algebra.TupleExpr expr,
             QueryEngineImpl.TriplePatternDeduplicator deduplicator)
      throws QueryEngine.IncompatibleQueryException

Throws:

QueryEngine.IncompatibleQueryException

Method Detail

getQueryForm

public Query.QueryForm getQueryForm()

Returns:

the query form of this query (ASK, CONSTRUCT, DECRIBE, or SELECT)

getConstants

public Set<org.openrdf.query.Binding> getConstants()

Returns:

any predefined bindings which are to be added to query solutions. For example, CONSTRUCT queries may bind constants to the subject, predicate, or object variable

getGraphPattern

public LList<TriplePattern> getGraphPattern()

getBindingNames

public Set<String> getBindingNames()

getExtendedBindingNames

public Map<String,String> getExtendedBindingNames()

getFilters

public List<org.openrdf.query.algebra.Filter> getFilters()

getSequenceModifier

public SolutionSequenceModifier getSequenceModifier()

Returns:

an object which represents this query's DISTINCT/REDUCED, OFFSET, and LIMIT behavior