org.apache.clerezza.rdf.cris

Class JoinVirtualProperty

java.lang.Object

org.apache.clerezza.rdf.cris.VirtualProperty

org.apache.clerezza.rdf.cris.JoinVirtualProperty

public class JoinVirtualProperty
extends VirtualProperty

A property that concatenates the literal-content of several properties.

Author:

rbn, daniel

Property Summary

Properties inherited from class org.apache.clerezza.rdf.cris.VirtualProperty

isFacetProperty

Constructor Summary

Constructors

Constructor and Description
JoinVirtualProperty(List<VirtualProperty> properties) Creates a JoinVirtualPorperty from the supplied properties with facet search enabled.
JoinVirtualProperty(List<VirtualProperty> properties, boolean facetProperty) Creates a JoinVirtualPorperty from the supplied properties.

Method Summary

Methods

Modifier and Type	Method and Description
protected List<UriRef>	pathToIndexedResource(UriRef property) The shortest path of inverse RDF properties from property to the indexed resource, this is an empty List for PropertyHolders, for properties in a PathVirtualProperties this is a list with the elements passed to its constructor till the first occurrence of property in reverse order. This method just returns the shortest path as virtual properties with the same base property in different positions are assumed to be very rare.
List<String>	value(GraphNode node) Returns the value of this property.

Methods inherited from class org.apache.clerezza.rdf.cris.VirtualProperty

equals, getBaseProperties, getStringKey, hashCode, isFacetProperty, listDigest

Methods inherited from class java.lang.Object

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

Constructor Detail

JoinVirtualProperty

public JoinVirtualProperty(List<VirtualProperty> properties)

Creates a JoinVirtualPorperty from the supplied properties with facet search enabled.

Parameters:

properties - the properties.

JoinVirtualProperty

public JoinVirtualProperty(List<VirtualProperty> properties,
                   boolean facetProperty)

Creates a JoinVirtualPorperty from the supplied properties.

Parameters:

properties - the properties.

Method Detail

value

public List<String> value(GraphNode node)

Description copied from class: VirtualProperty

Returns the value of this property.

Specified by:

value in class VirtualProperty

Parameters:

node - The node containing the original properties (where to get the literal value).

Returns:

The value.

pathToIndexedResource

protected List<UriRef> pathToIndexedResource(UriRef property)

Description copied from class: VirtualProperty

The shortest path of inverse RDF properties from property to the indexed resource, this is an empty List for PropertyHolders, for properties in a PathVirtualProperties this is a list with the elements passed to its constructor till the first occurrence of property in reverse order.
This method just returns the shortest path as virtual properties with the same base property in different positions are assumed to be very rare.

Specified by:

pathToIndexedResource in class VirtualProperty

Parameters:

property - the property.