org.apache.clerezza.rdf.cris

Class CountFacetCollector

java.lang.Object

org.apache.clerezza.rdf.cris.FacetCollector<Integer>

org.apache.clerezza.rdf.cris.CountFacetCollector

Direct Known Subclasses:

SortedCountFacetCollector

public class CountFacetCollector
extends FacetCollector<Integer>

A FacetCollector that counts members of a facet.

Author:

daniel

Constructor Summary

Constructors

Constructor and Description
CountFacetCollector() Default Constructor.
CountFacetCollector(Collection<VirtualProperty> properties) Creates a new CountFacetCollector that collects facet data over the supplied Properties.

Method Summary

Methods

Modifier and Type	Method and Description
void	addFacetProperty(VirtualProperty property) Add a property over which facets are collected.
Set<Map.Entry<String,Integer>>	getFacets(VirtualProperty property) Returns all facets for the given property.
Integer	getFacetValue(VirtualProperty property, String facet) Returns a facet value.
Collection<VirtualProperty>	getProperties() Returns the properties for which facets are collected..

Methods inherited from class java.lang.Object

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

Constructor Detail

CountFacetCollector

public CountFacetCollector(Collection<VirtualProperty> properties)

Creates a new CountFacetCollector that collects facet data over the supplied Properties.

Parameters:

properties - VirtualProperties over which facet data is collected.

CountFacetCollector

public CountFacetCollector()

Default Constructor.

Method Detail

addFacetProperty

public void addFacetProperty(VirtualProperty property)

Description copied from class: FacetCollector

Add a property over which facets are collected. Example: FOAF:firstName --> Resulting facets may be "John", "Adam", etc.

Specified by:

addFacetProperty in class FacetCollector<Integer>

Parameters:

property - A virtual property over which facets are collected.

getProperties

public Collection<VirtualProperty> getProperties()

Description copied from class: FacetCollector

Returns the properties for which facets are collected..

Specified by:

getProperties in class FacetCollector<Integer>

Returns:

The properties.

getFacets

public Set<Map.Entry<String,Integer>> getFacets(VirtualProperty property)

Description copied from class: FacetCollector

Returns all facets for the given property.

Specified by:

getFacets in class FacetCollector<Integer>

Parameters:

property - the property.

Returns:

A set with facets and facet values.

getFacetValue

public Integer getFacetValue(VirtualProperty property,
                    String facet)

Description copied from class: FacetCollector

Returns a facet value.

Specified by:

getFacetValue in class FacetCollector<Integer>

Parameters:

property - The property.

facet - The facet.

Returns:

The facet value.