private ShardedSubcriteriaImpl CreateSubCriteria(ISubcriteriaFactory factory)
{
// first build our sharded subcrit
var subCrit = new ShardedSubcriteriaImpl(shards, parent);
foreach (IShard shard in shards)
{
// see if we already have a concreate Criteria object for each shard
if (shardToCriteriaMap[shard] != null)
{
// we already have a concreate Criteria for this shard, so create
// a subcrit for it using the provided factory
factory.CreateSubcriteria(this, shardToEventListMap[shard]);
}
else
{
// we do not yet have a concrete Criteria object for this shard
// so register an event that will create a proper subcrit when we do
ICriteriaEvent subCriteriaEvent = new CreateSubcriteriaEvent(factory,
subCrit.SubcriteriaRegistrar(
shard), shardToCriteriaMap,
shardToEventListMap);
shardToEventListMap[shard].Add(subCriteriaEvent);
}
}
return(subCrit);
}
/**
* Creating sharded subcriteria is tricky. We need to give the client a
* reference to a ShardedSubcriteriaImpl (which to the client just looks like
* a Criteria object). Then, for each shard where the Criteria has already been
* established we need to create the actual subcriteria, and for each shard
* where the Criteria has not yet been established we need to register an
* event that will create the Subcriteria when the Criteria is established.
*/
private ShardedSubcriteriaImpl CreateSubcriteria(ISubcriteriaFactory factory)
{
var subCrit = new ShardedSubcriteriaImpl(shards, this);
foreach (IShard shard in shards)
{
ICriteria crit = shard.GetCriteriaById(criteriaId);
if (crit != null)
{
factory.CreateSubcriteria(crit, NoCriteriaEvents);
}
else
{
var subCriteriaEvent = new CreateSubcriteriaEvent(factory,
subCrit.SubcriteriaRegistrar(
shard),
subCrit.ShardToCriteriaMap,
subCrit.ShardToEventListMap);
shard.AddCriteriaEvent(criteriaId, subCriteriaEvent);
}
}
return(subCrit);
}