de.fuberlin.wiwiss.semmf.descr.impl
Class PropertyMatchingDescriptionImpl

java.lang.Object
  de.fuberlin.wiwiss.semmf.descr.impl.PropertyMatchingDescriptionImpl

All Implemented Interfaces:

PropertyMatchingDescription

public class PropertyMatchingDescriptionImpl
extends java.lang.Object
implements PropertyMatchingDescription

Version:

1.0 last modified 29.11.2006

Author:

Radoslaw Oldakowski

Field Summary

private boolean	isReversed flags if the matching of this property should be reversed (=> switch query and resource properties)
private java.lang.String	label Label of this property
Matcher	matcher A Matcher which will be used to calculate the similarity of the query and resource properties.
java.lang.String	queryPropertyURI URI of the property of the query node
java.lang.String	resPropertyURI URI of the property of the resource node
private float	weight Weight of this property

Constructor Summary

PropertyMatchingDescriptionImpl(java.lang.String label, float weight)
Constructor.

PropertyMatchingDescriptionImpl(java.lang.String label, float weight, boolean reversedMatching)
Constructor.

Method Summary

java.lang.String	getLabel()
Matcher	getMatcher()
java.lang.String	getQueryPropertyURI()
java.lang.String	getResPropertyURI()
float	getWeight()
boolean	reverseMatching() In most cases the matching engine compares a value from a resource graph with the semantically corresponding value from a query graph (= the "required" value).
void	setReversed(boolean reversed) Specifies if the matching of this property should be reversed

Methods inherited from class java.lang.Object

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

Field Detail

label

private java.lang.String label

Label of this property

weight

private float weight

Weight of this property

queryPropertyURI

public java.lang.String queryPropertyURI

URI of the property of the query node

resPropertyURI

public java.lang.String resPropertyURI

URI of the property of the resource node

matcher

public Matcher matcher

A Matcher which will be used to calculate the similarity of the query and resource properties.

isReversed

private boolean isReversed

flags if the matching of this property should be reversed (=> switch query and resource properties)

Constructor Detail

PropertyMatchingDescriptionImpl

public PropertyMatchingDescriptionImpl(java.lang.String label,
                                       float weight)

Constructor. In a vast majority of cases the property matching is not reversed if otherwise use the other constructor.

Parameters:

label - label of this node

weight - weight of this node

PropertyMatchingDescriptionImpl

public PropertyMatchingDescriptionImpl(java.lang.String label,
                                       float weight,
                                       boolean reversedMatching)

Constructor.

Parameters:

label - label of this node

weight - weight of this node

reversedMatching - flags whether the matching of this node should be reversed

Method Detail

setReversed

public void setReversed(boolean reversed)

Specifies if the matching of this property should be reversed

Parameters:

reversed - true if the matching of this property should be reversed

getLabel

public java.lang.String getLabel()

Specified by:

getLabel in interface PropertyMatchingDescription

Returns:

label of this property.

getWeight

public float getWeight()

Specified by:

getWeight in interface PropertyMatchingDescription

Returns:

weight which represents the importance of this property among other properties in a particular NodeMatchingDescription The weight is a float number [0..1]. The sum of all property weights equals 1.

getQueryPropertyURI

public java.lang.String getQueryPropertyURI()

Specified by:

getQueryPropertyURI in interface PropertyMatchingDescription

Returns:

URI of the property of the query node

getResPropertyURI

public java.lang.String getResPropertyURI()

Specified by:

getResPropertyURI in interface PropertyMatchingDescription

Returns:

URI of the property of the resource node

getMatcher

public Matcher getMatcher()

Specified by:

getMatcher in interface PropertyMatchingDescription

Returns:

a Matcher which is associated with this PropertyMatchingDescription and which will be used to calcualte the similarity between the query and resource properties.

reverseMatching

public boolean reverseMatching()

In most cases the matching engine compares a value from a resource graph with the semantically corresponding value from a query graph (= the "required" value). But for some nodes it is reasonable to reverse the matching. A good example is comparing job requirements with applicant's profile. If a person (query graph) looks for a job (resource graph) then while comparing his skills with skills required for a certain position the required skills from a resource graph (job description) become the "should be" values, thus the matching has to be reversed.

Specified by:

reverseMatching in interface PropertyMatchingDescription

Returns:

true if the matching should be reversed