org.tm4j.topicmap.utils.extractors
Class AssociationGroupsExtractor

java.lang.Object
  org.tm4j.topicmap.utils.extractors.ExtractorBase
      org.tm4j.topicmap.utils.extractors.AssociationGroupsExtractor

All Implemented Interfaces:

uk.co.jezuk.mango.UnaryFunction

public class AssociationGroupsExtractor

extends ExtractorBase

An extractor which returns a Map of AssociationGroup objects which represent all the associations of a specific type in which the topic plays a specific role. This extractor can be particularly useful in creating grouped displays of the associations in which a topic participates.

Nested Class Summary

class	AssociationGroupsExtractor.AssociationGroup
class	AssociationGroupsExtractor.DefaultAssociationGroupComparator

Constructor Summary

AssociationGroupsExtractor()

Method Summary

java.lang.Object	_extract(java.lang.Object o) Extracts the Map of AssociationGroup objects for the input.
void	setAssociationTest(uk.co.jezuk.mango.Predicate assocTest)
void	setComparator(java.util.Comparator c)
void	setRoleTest(uk.co.jezuk.mango.Predicate roleTest)
void	unsetAssociationTest()
void	unsetRoleTest()

Methods inherited from class org.tm4j.topicmap.utils.extractors.ExtractorBase

fn

Methods inherited from class java.lang.Object

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

Constructor Detail

AssociationGroupsExtractor

public AssociationGroupsExtractor()

Method Detail

_extract

public java.lang.Object _extract(java.lang.Object o)

Extracts the Map of AssociationGroup objects for the input.

Specified by:

_extract in class ExtractorBase

Parameters:

o - A Topic object which is to be extracted.

Returns:

A Map of AssociationGroup objects - the map key is a unique string generated from the ID of the Association type and the ID of the roleSpec of the role played by the input topic in the association.

setRoleTest

public void setRoleTest(uk.co.jezuk.mango.Predicate roleTest)

unsetRoleTest

public void unsetRoleTest()

setAssociationTest

public void setAssociationTest(uk.co.jezuk.mango.Predicate assocTest)

unsetAssociationTest

public void unsetAssociationTest()

setComparator

public void setComparator(java.util.Comparator c)