public static FakeRelationChange Merge(FakeRelationChange first, FakeRelationChange second)
{
if (first == null)
{
return(second);
}
if (second == null)
{
return(first);
}
/*
* The merging rules are the following (revision types of the first and second changes):
* - DEL, DEL - return any (the work units are the same)
* - DEL, ADD - return ADD (points to new owner)
* - ADD, DEL - return ADD (points to new owner)
* - ADD, ADD - return second (points to newer owner)
*/
if (first.RevisionType == RevisionType.DEL || second.RevisionType == RevisionType.ADD)
{
return(second);
}
else
{
return(first);
}
}
public override IAuditWorkUnit Merge(FakeBidirectionalRelationWorkUnit second)
{
// First merging the nested work units.
var mergedNested = second.NestedWorkUnit.Dispatch(NestedWorkUnit);
// Now merging the fake relation changes from both work units.
var secondFakeRelationChanges = second.fakeRelationChanges;
var mergedFakeRelationChanges = new Dictionary <string, FakeRelationChange>();
var allPropertyNames = new HashSet <string>(fakeRelationChanges.Keys);
allPropertyNames.UnionWith(secondFakeRelationChanges.Keys);
foreach (var propertyName in allPropertyNames)
{
mergedFakeRelationChanges.Add(propertyName,
FakeRelationChange.Merge(
fakeRelationChanges[propertyName],
secondFakeRelationChanges[propertyName]));
}
return(new FakeBidirectionalRelationWorkUnit(this, mergedFakeRelationChanges, mergedNested));
}
public override IAuditWorkUnit Merge(FakeBidirectionalRelationWorkUnit second)
{
// First merging the nested work units.
IAuditWorkUnit mergedNested = second.getNestedWorkUnit().Dispatch(nestedWorkUnit);
// Now merging the fake relation changes from both work units.
IDictionary <String, FakeRelationChange> secondFakeRelationChanges = second.getFakeRelationChanges();
IDictionary <String, FakeRelationChange> mergedFakeRelationChanges = new Dictionary <String, FakeRelationChange>();
//TODO Simon - decide if we use IESI.Collections in the end.
ISet <String> allPropertyNames = new HashedSet <String>(fakeRelationChanges.Keys);
allPropertyNames.AddAll(secondFakeRelationChanges.Keys);
foreach (String propertyName in allPropertyNames)
{
mergedFakeRelationChanges.Add(propertyName,
FakeRelationChange.Merge(
fakeRelationChanges[propertyName],
secondFakeRelationChanges[propertyName]));
}
return(new FakeBidirectionalRelationWorkUnit(this, mergedFakeRelationChanges, mergedNested));
}
public static FakeRelationChange Merge(FakeRelationChange first, FakeRelationChange second)
{
if (first == null) { return second; }
if (second == null) { return first; }
/*
* The merging rules are the following (revision types of the first and second changes):
* - DEL, DEL - return any (the work units are the same)
* - DEL, ADD - return ADD (points to new owner)
* - ADD, DEL - return ADD (points to new owner)
* - ADD, ADD - return second (points to newer owner)
*/
if (first.revisionType == RevisionType.Deleted || second.revisionType == RevisionType.Added)
{
return second;
}
return first;
}
