org.apache.clerezza.rdf.cris

Class SortedCountFacetCollector

java.lang.Object

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

org.apache.clerezza.rdf.cris.CountFacetCollector

org.apache.clerezza.rdf.cris.SortedCountFacetCollector

public class SortedCountFacetCollector
extends CountFacetCollector

A FacetCollector that counts members of a facet and returns ordered facets. Uses the comparable interface to determine order between facets. Note: Facets are always ordered first by value and only when values are equal according to keys.

Author:

daniel

Constructor Summary

Constructors

Constructor and Description
SortedCountFacetCollector() Default Constructor.
SortedCountFacetCollector(boolean reverseKeyOrder, boolean reverseValueOrder) Creates a facet collector that orders according to the supplied parameters.

Method Summary

Methods

Modifier and Type	Method and Description
Set<Map.Entry<String,Integer>>	getFacets(VirtualProperty property) Returns all facets for the given property.
boolean	keysReversed() Whether the collector orders keys in ascending or descending order.
boolean	valuesReversed() Whether the collector orders values in ascending or descending order.

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

addFacetProperty, getFacetValue, getProperties

Methods inherited from class java.lang.Object

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

Constructor Detail

SortedCountFacetCollector

public SortedCountFacetCollector()

Default Constructor. Creates a facet collector that orders keys in ascending and values in descending order.

SortedCountFacetCollector

public SortedCountFacetCollector(boolean reverseKeyOrder,
                         boolean reverseValueOrder)

Creates a facet collector that orders according to the supplied parameters. Note: Facets are always ordered first by value and only when values are equal according to keys.

Parameters:

reverseKeyOrder - true = descending order, false = ascending order.

reverseValueOrder - true = descending order, false = ascending order.

Method Detail

valuesReversed

public boolean valuesReversed()

Whether the collector orders values in ascending or descending order.

Returns:

true = descending order, false = ascending order.

keysReversed

public boolean keysReversed()

Whether the collector orders keys in ascending or descending order.

Returns:

true = descending order, false = ascending order.

getFacets

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

Description copied from class: FacetCollector

Returns all facets for the given property.

Overrides:

getFacets in class CountFacetCollector

Parameters:

property - the property.

Returns:

A set with facets and facet values.