org.openanzo.jastor
Class PropertyIterator<E>

java.lang.Object
  org.openanzo.jastor.FilteredMappedIterator<E,org.openrdf.model.Value,org.openrdf.model.Statement>
      org.openanzo.jastor.PropertyIterator<E>

Type Parameters:

E - The Jastor Type for the values that this iterator of properties represents

All Implemented Interfaces:

info.aduna.collections.iterators.CloseableIterator<E>, java.io.Closeable, java.util.Iterator<E>

Direct Known Subclasses:

DummyPropertyIterator

public abstract class PropertyIterator<E>
extends FilteredMappedIterator<E,org.openrdf.model.Value,org.openrdf.model.Statement>

Iterator that iterates over the set of object values for a given property on a given subject. Based on doing a find within the NamedGraph for the given subject and property

Author:

Ben Szekely (bhszekel@us.ibm.com)

Constructor Summary

PropertyIterator(INamedGraph graph, org.openrdf.model.Resource resource, org.openrdf.model.URI property, org.openrdf.model.URI type)
Create iterator of object values for a given property on a given subject.

Method Summary

abstract E	getPropertyValue(org.openrdf.model.Value value) Converts the Value resource into the expected Jastor Type
void	remove()

Methods inherited from class org.openanzo.jastor.FilteredMappedIterator

close, hasNext, next

Methods inherited from class java.lang.Object

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

Constructor Detail

PropertyIterator

public PropertyIterator(INamedGraph graph,
                        org.openrdf.model.Resource resource,
                        org.openrdf.model.URI property,
                        org.openrdf.model.URI type)

Create iterator of object values for a given property on a given subject.

Parameters:

graph - INamedGraph that contains data to search

resource - Subject of statements to find

property - Property of statements to find

type - rdf:type of expected object

Method Detail

remove

public void remove()

Specified by:

remove in interface java.util.Iterator<E>

Overrides:

remove in class FilteredMappedIterator<E,org.openrdf.model.Value,org.openrdf.model.Statement>

getPropertyValue

public abstract E getPropertyValue(org.openrdf.model.Value value)

Converts the Value resource into the expected Jastor Type

Parameters:

value - Value to convert

Returns:

Converted value based on expected Jastor Type