private void DiagnoseKeyCollision(
UpdateCompiler compiler,
PropagatorResult change,
CompositeKey key,
PropagatorResult other)
{
KeyManager keyManager = compiler.m_translator.KeyManager;
CompositeKey compositeKey = new CompositeKey(this.GetKeyConstants(other));
bool flag = true;
for (int index = 0; flag && index < key.KeyComponents.Length; ++index)
{
int identifier1 = key.KeyComponents[index].Identifier;
int identifier2 = compositeKey.KeyComponents[index].Identifier;
if (!keyManager.GetPrincipals(identifier1).Intersect <int>(keyManager.GetPrincipals(identifier2)).Any <int>())
{
flag = false;
}
}
if (flag)
{
throw new UpdateException(Strings.Update_DuplicateKeys, (Exception)null, SourceInterpreter.GetAllStateEntries(change, compiler.m_translator, this.m_table).Concat <IEntityStateEntry>((IEnumerable <IEntityStateEntry>)SourceInterpreter.GetAllStateEntries(other, compiler.m_translator, this.m_table)).Cast <ObjectStateEntry>().Distinct <ObjectStateEntry>());
}
HashSet <IEntityStateEntry> source = (HashSet <IEntityStateEntry>)null;
foreach (PropagatorResult propagatorResult in ((IEnumerable <PropagatorResult>)key.KeyComponents).Concat <PropagatorResult>((IEnumerable <PropagatorResult>)compositeKey.KeyComponents))
{
HashSet <IEntityStateEntry> entityStateEntrySet = new HashSet <IEntityStateEntry>();
foreach (int dependent in keyManager.GetDependents(propagatorResult.Identifier))
{
PropagatorResult owner;
if (keyManager.TryGetIdentifierOwner(dependent, out owner) && owner.StateEntry != null)
{
entityStateEntrySet.Add(owner.StateEntry);
}
}
if (source == null)
{
source = new HashSet <IEntityStateEntry>((IEnumerable <IEntityStateEntry>)entityStateEntrySet);
}
else
{
source.IntersectWith((IEnumerable <IEntityStateEntry>)entityStateEntrySet);
}
}
throw new UpdateException(Strings.Update_GeneralExecutionException, (Exception) new ConstraintException(Strings.Update_ReferentialConstraintIntegrityViolation), source.Cast <ObjectStateEntry>().Distinct <ObjectStateEntry>());
}
internal override PropagatorResult Merge(
KeyManager keyManager,
PropagatorResult other)
{
PropagatorResult.KeyValue next = other as PropagatorResult.KeyValue;
if (next == null)
{
EntityUtil.InternalError(EntityUtil.InternalErrorCode.UpdatePipelineResultRequestInvalid, 0, (object)"KeyValue.Merge");
}
if (this.Identifier != next.Identifier)
{
if (keyManager.GetPrincipals(next.Identifier).Contains <int>(this.Identifier))
{
return((PropagatorResult)this.ReplicateResultWithNewNext(next));
}
return((PropagatorResult)next.ReplicateResultWithNewNext(this));
}
if (this.m_stateEntry == null || this.m_stateEntry.IsRelationship)
{
return((PropagatorResult)next.ReplicateResultWithNewNext(this));
}
return((PropagatorResult)this.ReplicateResultWithNewNext(next));
}
internal override PropagatorResult Merge(KeyManager keyManager, PropagatorResult other)
{
var otherKey = other as KeyValue;
if (null == otherKey)
{
EntityUtil.InternalError(EntityUtil.InternalErrorCode.UpdatePipelineResultRequestInvalid, 0, "KeyValue.Merge");
}
// Determine which key (this or otherKey) is first in the chain. Principal keys take
// precedence over dependent keys and entities take precedence over relationships.
if (Identifier != otherKey.Identifier)
{
// Find principal (if any)
if (keyManager.GetPrincipals(otherKey.Identifier).Contains(Identifier))
{
return(ReplicateResultWithNewNext(otherKey));
}
else
{
return(otherKey.ReplicateResultWithNewNext(this));
}
}
else
{
// Entity takes precedence of relationship
if (null == m_stateEntry ||
m_stateEntry.IsRelationship)
{
return(otherKey.ReplicateResultWithNewNext(this));
}
else
{
return(ReplicateResultWithNewNext(otherKey));
}
}
}
