org.aksw.commons.sparql.api.core
Class ConstructIterator

java.lang.Object
  org.aksw.commons.collections.PrefetchIterator<com.hp.hpl.jena.graph.Triple>
      org.aksw.commons.sparql.api.core.ConstructIterator

All Implemented Interfaces:

Iterator<com.hp.hpl.jena.graph.Triple>

public class ConstructIterator
extends PrefetchIterator<com.hp.hpl.jena.graph.Triple>

Author:

Claus Stadler

Date: 11/5/11 Time: 2:16 PM

Constructor Summary

ConstructIterator(com.hp.hpl.jena.sparql.syntax.Template template, com.hp.hpl.jena.query.ResultSet rs)

Method Summary

protected Iterator<com.hp.hpl.jena.graph.Triple>

prefetch() Returns an iterator over the triples generated by instancing the template with each of the result set rows.

Methods inherited from class org.aksw.commons.collections.PrefetchIterator

close, hasNext, next, remove

Methods inherited from class java.lang.Object

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

Constructor Detail

ConstructIterator

public ConstructIterator(com.hp.hpl.jena.sparql.syntax.Template template,
                         com.hp.hpl.jena.query.ResultSet rs)

Method Detail

prefetch

protected Iterator<com.hp.hpl.jena.graph.Triple> prefetch()
                                                   throws Exception

Returns an iterator over the triples generated by instancing the template with each of the result set rows. Duplicates are not removed; this can be achieved by wrapping this iterator with a UniqueIterator. TODO We could do some optimization by factoring out constant triples from the template.

Specified by:

prefetch in class PrefetchIterator<com.hp.hpl.jena.graph.Triple>

Returns:

Throws:

Exception