Package com.complexible.common.rdf.query

Class GraphQueryResultIterator

java.lang.Object

com.google.common.collect.UnmodifiableIterator<Statement>

com.google.common.collect.AbstractIterator<Statement>

com.complexible.common.rdf.query.GraphQueryResultIterator

All Implemented Interfaces:

CloseableIterator<Statement>, StatementIterator, AutoCloseable, Iterator<Statement>

public final class GraphQueryResultIterator
extends com.google.common.collect.AbstractIterator<Statement>
implements StatementIterator

Iteration implementation over graph query results. Optionally will apply a context to the results as they are returned so we can have the effect of doing construct queries which return statements w/ non-null contexts.

Since:

0.2

Version:

6.0

Author:

Michael Grove

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
GraphQueryResultIterator(GraphQueryResult theResult)	Create a new GraphQueryResultIteration
GraphQueryResultIterator(GraphQueryResult theResult, Resource theContext)	Create a new GQRIterator

Method Summary

Modifier and Type	Method	Description
void	close()
Statement	computeNext()
Namespaces	namespaces()	Returns namespaces associated with this statement iteration if any.

Methods inherited from class com.google.common.collect.AbstractIterator

endOfData, hasNext, next, peek

Methods inherited from class com.google.common.collect.UnmodifiableIterator

remove

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, hasNext, next, remove

Methods inherited from interface com.complexible.common.rdf.StatementIterator

process, toGraph

Constructor Details

GraphQueryResultIterator

public GraphQueryResultIterator(GraphQueryResult theResult)

Create a new GraphQueryResultIteration

Parameters:

theResult - the query result

GraphQueryResultIterator

public GraphQueryResultIterator(GraphQueryResult theResult,
 Resource theContext)

Create a new GQRIterator

Parameters:

theResult - the query result

theContext - the context to be applied to the results, or null if the context should not be altered

Method Details

namespaces

public Namespaces namespaces()

Returns namespaces associated with this statement iteration if any.

Specified by:

namespaces in interface StatementIterator

Returns:

possibly empty namespaces but never null

computeNext

public Statement computeNext()

Specified by:

computeNext in class com.google.common.collect.AbstractIterator<Statement>

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface CloseableIterator<Statement>