net.fortytwo.stream.sparql

Class SparqlQuery

java.lang.Object

net.fortytwo.stream.sparql.SparqlQuery

public class SparqlQuery
extends Object

An 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	SparqlQuery.QueryForm Any of the four SPARQL query forms

Constructor Summary

Constructors

Constructor and Description
SparqlQuery(org.openrdf.query.algebra.TupleExpr expr)

Method Summary

Modifier and Type	Method and Description
Collection<String>	getBindingNames() Gets the order-preserving list of variable names
Map<String,org.openrdf.model.Value>	getConstants()
Map<String,String>	getExtendedBindingNames()
List<org.openrdf.query.algebra.Filter>	getFilters()
SparqlQuery.QueryForm	getQueryForm()
SolutionSequenceModifier	getSequenceModifier()
LList<VariableOrConstant<String,org.openrdf.model.Value>[]>	getTriplePatterns()

Methods inherited from class java.lang.Object

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

Constructor Detail

SparqlQuery

public SparqlQuery(org.openrdf.query.algebra.TupleExpr expr)
            throws StreamProcessor.IncompatibleQueryException

Throws:

StreamProcessor.IncompatibleQueryException

Method Detail

getQueryForm

public SparqlQuery.QueryForm getQueryForm()

Returns:

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

getConstants

public Map<String,org.openrdf.model.Value> 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

getTriplePatterns

public LList<VariableOrConstant<String,org.openrdf.model.Value>[]> getTriplePatterns()

getBindingNames

public Collection<String> getBindingNames()

Gets the order-preserving list of variable names

Returns:

the order-preserving list of variable names

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