// this is only heppening when reading from product or creating dangling reference
internal void SetReferenceValue(string entitySetFullName, QueryRecordValue keyValue)
{
ExceptionUtilities.CheckStringArgumentIsNotNullOrEmpty(entitySetFullName, "entitySetFullName");
ExceptionUtilities.CheckArgumentNotNull(keyValue, "keyValue");
this.EntitySetFullName = entitySetFullName;
this.KeyValue = keyValue;
this.EntityValue = this.Type.QueryEntityType.NullValue;
}
/// <summary>
/// Creates the reference value for the given entity set name and key value
/// </summary>
/// <param name="setFullName">the entity set full name</param>
/// <param name="keyValue">the key value</param>
/// <returns>the refernce value</returns>
/// <remarks>
/// This will create a "dangling" reference, which Dereference will evaluate to query null value. It's only intended to be used:
/// 1. when it's really a "dangling reference
/// 2. dumping product output for comparision (in which case, Dereference evaluation is not valid anyway)
/// </remarks>
public QueryReferenceValue CreateReferenceValue(string setFullName, QueryRecordValue keyValue)
{
ExceptionUtilities.Assert(keyValue.Type is QueryRecordType, "Create reference value using key needs a value of query record type, not {0}.", keyValue.Type);
var referenceValue = new QueryReferenceValue(this, null, this.EvaluationStrategy);
referenceValue.SetReferenceValue(setFullName, keyValue);
return(referenceValue);
}
internal void SetReferenceValue(QueryStructuralValue entityValue)
{
ExceptionUtilities.CheckArgumentNotNull(entityValue, "entityValue");
this.EntityValue = entityValue;
// compute key value
QueryEntityType entityType = this.Type.QueryEntityType;
var keyType = new QueryRecordType(this.EvaluationStrategy);
keyType.AddProperties(entityType.Properties.Where(m => m.IsPrimaryKey));
this.KeyValue = keyType.CreateNewInstance();
for (int i = 0; i < keyType.Properties.Count; i++)
{
this.KeyValue.SetMemberValue(i, entityValue.GetValue(keyType.Properties[i].Name));
}
var set = entityType.EntitySet;
this.EntitySetFullName = set.Container.Name + "." + set.Name;
}
private bool RecordValuesAreEqual(QueryRecordValue firstValueRecord, QueryRecordValue secondValueRecord)
{
if (firstValueRecord.IsNull)
{
return(secondValueRecord.IsNull);
}
else if (secondValueRecord.IsNull)
{
return(false);
}
for (int index = 0; index < firstValueRecord.Type.Properties.Count; index++)
{
QueryValue innerFirstvalue = firstValueRecord.GetMemberValue(index);
QueryValue innerSecondvalue = secondValueRecord.GetMemberValue(index);
if (!this.ValuesAreEqual(innerFirstvalue, innerSecondvalue))
{
return(false);
}
}
return(true);
}
