Package org.eclipse.emf.compare.match.resource

Class LocationMatchingStrategy

java.lang.Object

org.eclipse.emf.compare.match.resource.LocationMatchingStrategy

All Implemented Interfaces:

IResourceMatchingStrategy

public class LocationMatchingStrategy
extends Object
implements IResourceMatchingStrategy

This implementation of a matching strategy will only use String equality on the resource URIs to try and find resource mappings. This is only applicable when comparing or merging models with version control systems like git, it makes no sense for local comparisons.

Constructor Summary

Constructors

Constructor	Description
LocationMatchingStrategy()

Method Summary

Modifier and Type	Method	Description
protected static MatchResource	createMatchResource(Resource left, Resource right, Resource origin)	Creates a MatchResource instance and sets all three resources of the mapping on it.
protected Resource	findMatch(Resource reference, Iterable<Resource> candidates)	Returns the first match of reference in candidates.
List<MatchResource>	matchResources(Iterable<? extends Resource> left, Iterable<? extends Resource> right, Iterable<? extends Resource> origin)	This will be called by the resource matcher in order to determine the matching between n resources.

Methods inherited from class java.lang.Object

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

Constructor Details

LocationMatchingStrategy

public LocationMatchingStrategy()

Method Details

matchResources

public List<MatchResource> matchResources(Iterable<? extends Resource> left,
 Iterable<? extends Resource> right,
 Iterable<? extends Resource> origin)

This will be called by the resource matcher in order to determine the matching between n resources.

Specified by:

matchResources in interface IResourceMatchingStrategy

Parameters:

left - Resources we are to match in the left.

right - Resources we are to match in the right.

origin - Resources we are to match in the origin.

Returns:

The list of mappings this strategy managed to determine.

See Also:

• IResourceMatchingStrategy.matchResources(java.lang.Iterable, java.lang.Iterable, java.lang.Iterable)

findMatch

protected Resource findMatch(Resource reference,
 Iterable<Resource> candidates)

Returns the first match of reference in candidates. This implementation will consider two Resources to be "matches" if they have the same location.

Parameters:

reference - The reference resource.

candidates - The list of potential candidates that may match reference.

Returns:

The first match of reference in candidates. null if none.

createMatchResource

protected static MatchResource createMatchResource(Resource left,
 Resource right,
 Resource origin)

Creates a MatchResource instance and sets all three resources of the mapping on it.

Parameters:

left - The left resource of this mapping.

right - The right resource of this mapping.

origin - The origin resource of this mapping.

Returns:

The create mapping.