Package org.eclipse.rdf4j.query.impl

Class TupleQueryResultBuilder

java.lang.Object

org.eclipse.rdf4j.query.AbstractTupleQueryResultHandler

org.eclipse.rdf4j.query.impl.TupleQueryResultBuilder

All Implemented Interfaces:

QueryResultHandler, TupleQueryResultHandler

public class TupleQueryResultBuilder
extends AbstractTupleQueryResultHandler

A TupleQueryResultHandler that can be used to create a TupleQueryResult object.

Constructor Summary

Constructors

Constructor	Description
TupleQueryResultBuilder()

Method Summary

Modifier and Type	Method	Description
TupleQueryResult	getQueryResult()
void	handleSolution(BindingSet bindingSet)	Handles a solution.
void	startQueryResult(List<String> bindingNames)	Indicates the start of a sequence of Solutions.

Methods inherited from class org.eclipse.rdf4j.query.AbstractTupleQueryResultHandler

endQueryResult, handleBoolean, handleLinks

Methods inherited from class java.lang.Object

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

Constructor Detail

TupleQueryResultBuilder

public TupleQueryResultBuilder()

Method Detail

startQueryResult

public void startQueryResult(List<String> bindingNames)
                      throws TupleQueryResultHandlerException

Description copied from interface: QueryResultHandler

Indicates the start of a sequence of Solutions. The supplied bindingNames are an indication of the values that are in the Solutions. For example, a SPARQL query like select ?X ?Y where { ?X ?P ?Y } will have binding names X and Y.

Specified by:

startQueryResult in interface QueryResultHandler

Overrides:

startQueryResult in class AbstractTupleQueryResultHandler

Parameters:

bindingNames - An ordered set of binding names.

Throws:

TupleQueryResultHandlerException - If there was an error during the starting of the query result handler. This exception may be thrown if the QueryResultHandler.handleBoolean(boolean) method was called before this method and the handler cannot process both boolean and tuple results simultaneously.

handleSolution

public void handleSolution(BindingSet bindingSet)
                    throws TupleQueryResultHandlerException

Description copied from interface: QueryResultHandler

Handles a solution.

Specified by:

handleSolution in interface QueryResultHandler

Overrides:

handleSolution in class AbstractTupleQueryResultHandler

Parameters:

bindingSet - A single set of tuple results, with binding names bound to values. Each of the binding names in the solution must have previously been registered with the QueryResultHandler.startQueryResult(List) method.

Throws:

TupleQueryResultHandlerException - If there was an error during the handling of the query solution. This exception may be thrown if the QueryResultHandler.handleBoolean(boolean) method was called before this method and the handler cannot process both boolean and tuple results simultaneously.

getQueryResult

public TupleQueryResult getQueryResult()