org.eigenbase.jmi
Interface JmiDependencyTransform

All Known Implementing Classes:

JmiDependencyMappedTransform

public interface JmiDependencyTransform

JmiDependencyTransform defines a transformation for use in constructing a JmiDependencyGraph.

Version:

$Id: //open/dev/farrago/src/org/eigenbase/jmi/JmiDependencyTransform.java#9 $

Author:

John V. Sichi

Method Summary

Collection<RefObject>	getSourceNeighbors(RefObject target, Collection<RefObject> candidates, JmiAssocMapping mapping) Searches a collection of candidate objects, returning only those which are reachable via links corresponding to mapped incoming model edges to a target object.
Comparator<RefBaseObject>	getTieBreaker()
boolean	shouldProduceSelfLoops()

Method Detail

getSourceNeighbors

Collection<RefObject> getSourceNeighbors(RefObject target,
                                         Collection<RefObject> candidates,
                                         JmiAssocMapping mapping)

Searches a collection of candidate objects, returning only those which are reachable via links corresponding to mapped incoming model edges to a target object.

Parameters:

target - object to which incoming links are to be found

candidates - candidate source objects

mapping - mapping filter for links

Returns:

matching candidates

shouldProduceSelfLoops

boolean shouldProduceSelfLoops()

Returns:

true if self-loops in the dependency graph should be allowed; false to automatically filter them out

getTieBreaker

Comparator<RefBaseObject> getTieBreaker()

Returns:

a comparator which can be used for breaking ties in ordering, or null if no tie-breaking is desired (tie-breaking provides stability during diff-based testing, but adds processing overhead)