uk.ac.ic.doc.automed.matching
Class Filter

java.lang.Object
  uk.ac.ic.doc.automed.matching.Filter

public class Filter
extends java.lang.Object

The class that represents the Filter component in the schema matching architecture. Its role is to filter out the incompatible pairs of schema elements from the compatible ones, based on the results of the modules attached to the filter.

See Also:

AbstractModule, SimilarSchemaElementPair

Field Summary

private java.util.ArrayList	modules
private SchemaElementPair[]	pairs

Constructor Summary

Filter(SchemaElement[] elems1, SchemaElement[] elems2)
Constructs the Filter.

Filter(SchemaElementPair[] pairs)
Constructs the Filter.

Method Summary

void	addModule(AbstractModule module) Appends the specified module to the list of modules of this Filter object.
SimilarSchemaElementPair[]	getAllPairs() Returns an array of all schema element pairs, compatible and incompatible.
SimilarSchemaElementPair[]	getCompatibles(double threshold) Returns an array of SimilarSchemaElementPair objects that define compatible pairs.

Methods inherited from class java.lang.Object

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

Field Detail

modules

private java.util.ArrayList modules

pairs

private SchemaElementPair[] pairs

Constructor Detail

Filter

public Filter(SchemaElement[] elems1,
              SchemaElement[] elems2)
       throws UninstantiatedException

Constructs the Filter. Only the pairs of elements defined by the input arrays are going to be examined.

Parameters:

elems1 - the first array of schema elements

elems2 - the second array of schema elements

Throws:

UninstantiatedException - if an input array doesn't contain any elements

Filter

public Filter(SchemaElementPair[] pairs)
       throws UninstantiatedException

Constructs the Filter. Only the pairs of elements defined are going to be examined.

Parameters:

pairs - the array of schema element pairs

Throws:

UninstantiatedException - if the input array doesn't contain any pairs

Method Detail

addModule

public void addModule(AbstractModule module)

Appends the specified module to the list of modules of this Filter object.

Parameters:

module - the module to be appended

getCompatibles

public SimilarSchemaElementPair[] getCompatibles(double threshold)

Returns an array of SimilarSchemaElementPair objects that define compatible pairs. The specified threshold defines the compatible pairs. A pair of schema elements in order to be compatible it must have average bidirectional degree over the specified threshold, BidirectionalDegree.overFunction(double).

Parameters:

threshold - the compatibility threshold

Returns:

an array of SimilarSchemaElementPair objects that define compatible pairs.

getAllPairs

public SimilarSchemaElementPair[] getAllPairs()

Returns an array of all schema element pairs, compatible and incompatible.

Returns:

an array of compatible and incompatible schema element pairs