private void PopulateKeyConstraintsForRelationshipSet(
SchemaConstraints <BasicKeyConstraint> constraints)
{
AssociationSet extent = this.m_cellQuery.Extent as AssociationSet;
Set <MemberPath> set = new Set <MemberPath>(MemberPath.EqualityComparer);
bool flag = false;
foreach (AssociationSetEnd associationSetEnd in extent.AssociationSetEnds)
{
AssociationEndMember associationEndMember = associationSetEnd.CorrespondingAssociationEndMember;
List <ExtentKey> keysForEntityType = ExtentKey.GetKeysForEntityType(new MemberPath((EntitySetBase)extent, (EdmMember)associationEndMember), associationSetEnd.EntitySet.ElementType);
if (MetadataHelper.DoesEndFormKey(extent, associationEndMember))
{
this.AddKeyConstraints((IEnumerable <ExtentKey>)keysForEntityType, constraints);
flag = true;
}
set.AddRange(keysForEntityType[0].KeyFields);
}
if (flag)
{
return;
}
this.AddKeyConstraints((IEnumerable <ExtentKey>) new ExtentKey[1]
{
new ExtentKey((IEnumerable <MemberPath>)set)
}, constraints);
}
internal void PopulateKeyConstraints(SchemaConstraints <BasicKeyConstraint> constraints)
{
if (this.m_cellQuery.Extent is EntitySet)
{
this.PopulateKeyConstraintsForEntitySet(constraints);
}
else
{
this.PopulateKeyConstraintsForRelationshipSet(constraints);
}
}
private void AddKeyConstraints(
IEnumerable <ExtentKey> keys,
SchemaConstraints <BasicKeyConstraint> constraints)
{
foreach (ExtentKey key in keys)
{
List <MemberProjectedSlot> slots = MemberProjectedSlot.GetSlots((IEnumerable <MemberProjectedSlot>) this.m_slots, key.KeyFields);
if (slots != null)
{
BasicKeyConstraint constraint = new BasicKeyConstraint(this, (IEnumerable <MemberProjectedSlot>)slots);
constraints.Add(constraint);
}
}
}
private void PopulateKeyConstraintsForEntitySet(
SchemaConstraints <BasicKeyConstraint> constraints)
{
this.AddKeyConstraints((IEnumerable <ExtentKey>)ExtentKey.GetKeysForEntityType(new MemberPath(this.m_cellQuery.Extent), (EntityType)this.m_cellQuery.Extent.ElementType), constraints);
}
internal override void ToCompactString(StringBuilder builder)
{
SchemaConstraints <TKeyConstraint> .ConstraintsToBuilder <TKeyConstraint>((IEnumerable <TKeyConstraint>) this.m_keyConstraints, builder);
}
