Package com.complexible.common.rdf.query

Class PathsAsTupleQueryResult

java.lang.Object

com.complexible.common.rdf.query.PathsAsTupleQueryResult

All Implemented Interfaces:

CloseableIterator<BindingSet>, QueryResult<BindingSet>, SelectQueryResult, AutoCloseable, Iterator<BindingSet>

public class PathsAsTupleQueryResult
extends Object
implements SelectQueryResult

Represents a result set of a path query as tuples. Each edge is a set of tuples (solutions). Paths are separated by special tuple delimiters in which the start and the end variables are unbound.

Since:

5.0.4

Version:

6.0

Author:

Pavel Klinov

Nested Class Summary

Nested classes/interfaces inherited from interface com.complexible.common.base.CloseableIterator

CloseableIterator.AbstractCloseableIterator<T>, CloseableIterator.DelegatingCloseableIterator<T>, CloseableIterator.EmptyCloseableIterator<T>

Constructor Summary

Constructors

Constructor	Description
PathsAsTupleQueryResult(PathQueryResult thePaths)

Method Summary

Modifier and Type	Method	Description
void	close()	Close the query results and return any resources in use back to the system.
boolean	hasNext()
BindingSet	next()
void	remove()
List<String>	variables()	Return the list of projected variables from the query

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Methods inherited from interface com.stardog.stark.query.QueryResult

metadata, stream

Constructor Details

PathsAsTupleQueryResult

public PathsAsTupleQueryResult(PathQueryResult thePaths)

Method Details

variables

@Nonnull
public List<String> variables()

Return the list of projected variables from the query

Specified by:

variables in interface SelectQueryResult

Returns:

the projection

close

public void close()

Close the query results and return any resources in use back to the system. This *must* be called on all result sets to avoid resource leaks.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface CloseableIterator<BindingSet>

Specified by:

close in interface QueryResult<BindingSet>

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<BindingSet>

Specified by:

hasNext in interface QueryResult<BindingSet>

next

public BindingSet next()

Specified by:

next in interface Iterator<BindingSet>

Specified by:

next in interface QueryResult<BindingSet>

remove

public void remove()
            throws QueryExecutionFailure

Specified by:

remove in interface Iterator<BindingSet>

Throws:

QueryExecutionFailure