com.orchestranetworks.addon.tese

Class SearchDistance

java.lang.Object

com.orchestranetworks.addon.tese.SearchComparator

com.orchestranetworks.addon.tese.SearchDistance

public abstract class SearchDistance
extends SearchComparator

Abstract class for implementing distance algorithms.

Constructor Summary

Constructors

Constructor and Description
SearchDistance(com.orchestranetworks.schema.SchemaNode schemaNode, Locale locale)

Method Summary

Modifier and Type	Method and Description
abstract float	getDistance(String target, String other) Returns the distance between two strings.

Methods inherited from class com.orchestranetworks.addon.tese.SearchComparator

cloneMatching, equals, getLocale, getParameter, getSchemaNode, hashCode, isDateSupported, isFullTableScanRequired, isNullSupported, isNumericSupported, normalizeValue, setParameter

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SearchDistance

public SearchDistance(com.orchestranetworks.schema.SchemaNode schemaNode,
                      Locale locale)

Method Detail

getDistance

public abstract float getDistance(String target,
                                  String other)

Returns the distance between two strings. 0 means completely different. The value returned for strict equality must be strictly superior to zero. This value will be the baseline to convert all other distance into a percentage. Considering baseString to be compared with otherString, the percentage of similarity will be calculated as follow.

baseline = getDistance(baseString, baseString) distance = getDistance(baseString, otherString) similarity = distance/baseline*100