private bool Build(bool throwErrors)
{
if (sourceEntity == null)
{
if (relationDescriptor.GetSourceEntity() != null)
{
if (persistenceUnit.ContainsEntity(relationDescriptor.GetSourceEntity()))
{
sourceEntity = persistenceUnit.GetEntity(relationDescriptor.GetSourceEntity());
}
}
}
if (sourceEntity == null)
{
if (relationDescriptor.GetSourceEntityType() != null)
{
if (persistenceUnit.ContainsEntity(relationDescriptor.GetSourceEntityType()))
{
sourceEntity = persistenceUnit.GetEntity(relationDescriptor.GetSourceEntityType());
}
}
}
if (targetEntity == null)
{
if (relationDescriptor.GetTargetEntity() != null)
{
if (persistenceUnit.ContainsEntity(relationDescriptor.GetTargetEntity()))
{
targetEntity = persistenceUnit.GetEntity(relationDescriptor.GetTargetEntity());
}
}
}
if (targetEntity == null)
{
if (relationDescriptor.GetTargetEntityType() != null)
{
if (persistenceUnit.ContainsEntity(relationDescriptor.GetTargetEntityType()))
{
targetEntity = persistenceUnit.GetEntity(relationDescriptor.GetTargetEntityType());
}
}
}
if (sourceEntity == null)
{
if (throwErrors)
{
throw new Net.Vpc.Upa.Exceptions.UPAException("InvalidRelationEntityNotFound", relationDescriptor.GetSourceEntityType());
}
else
{
return(false);
}
}
if (targetEntity == null)
{
if (throwErrors)
{
throw new Net.Vpc.Upa.Exceptions.UPAException("InvalidRelationEntityNotFound", relationDescriptor.GetTargetEntityType());
}
else
{
return(false);
}
}
sourceUpdateType = Net.Vpc.Upa.RelationshipUpdateType.FLAT;
sourceFieldNames = new System.Collections.Generic.List <string>();
if (relationDescriptor.GetBaseField() == null)
{
Net.Vpc.Upa.Impl.FwkConvertUtils.ListAddRange(sourceFieldNames, new System.Collections.Generic.List <string>(relationDescriptor.GetSourceFields()));
if (relationDescriptor.GetMappedTo() != null && relationDescriptor.GetMappedTo().Length > 0)
{
if (relationDescriptor.GetMappedTo().Length > 1)
{
throw new System.ArgumentException("mappedTo cannot only apply to single Entity Field");
}
manyToOneField = sourceEntity.GetField(relationDescriptor.GetMappedTo()[0]);
}
}
else
{
Net.Vpc.Upa.Field baseField = sourceEntity.GetField(relationDescriptor.GetBaseField());
Net.Vpc.Upa.Types.DataType baseFieldType = baseField.GetDataType();
if (baseFieldType is Net.Vpc.Upa.Types.ManyToOneType)
{
Net.Vpc.Upa.Types.ManyToOneType et = (Net.Vpc.Upa.Types.ManyToOneType)baseFieldType;
if (et.GetTargetEntityName() == null || (et.GetTargetEntityName().Length == 0))
{
et.SetTargetEntityName(targetEntity.GetName());
}
sourceUpdateType = Net.Vpc.Upa.RelationshipUpdateType.COMPOSED;
System.Collections.Generic.IList <Net.Vpc.Upa.Field> masterPK = targetEntity.GetPrimaryFields();
if (relationDescriptor.GetMappedTo() == null || relationDescriptor.GetMappedTo().Length == 0)
{
if ((masterPK.Count == 0))
{
if (throwErrors)
{
throw new Net.Vpc.Upa.Exceptions.UPAException("PrimaryFieldsNotFoundException", targetEntity.GetName());
}
else
{
return(false);
}
}
else
{
foreach (Net.Vpc.Upa.Field masterField in masterPK)
{
string f = masterField.GetName();
if ((f).Length == 1)
{
f = f.ToUpper();
}
else if ((f).Length > 1)
{
f = f.Substring(0, 1).ToUpper() + f.Substring(1);
}
string extraName = baseField.GetName() + f;
sourceFieldNames.Add(extraName);
}
}
}
else
{
Net.Vpc.Upa.Impl.FwkConvertUtils.ListAddRange(sourceFieldNames, new System.Collections.Generic.List <string>(relationDescriptor.GetMappedTo()));
}
if ((sourceFieldNames).Count != (masterPK).Count)
{
if (throwErrors)
{
throw new System.ArgumentException("Incorrect parameters");
}
else
{
return(false);
}
}
if ((sourceFieldNames.Count == 0))
{
if (throwErrors)
{
throw new System.ArgumentException("Incorrect parameters");
}
else
{
return(false);
}
}
for (int i = 0; i < (sourceFieldNames).Count; i++)
{
string extraName = sourceFieldNames[i];
Net.Vpc.Upa.Field idField = sourceEntity.FindField(extraName);
if (idField == null)
{
Net.Vpc.Upa.Types.DataType dt = (Net.Vpc.Upa.Types.DataType)masterPK[i].GetDataType().Copy();
bool nullable = baseFieldType.IsNullable();
dt.SetNullable(nullable);
idField = sourceEntity.AddField(extraName, "system", Net.Vpc.Upa.FlagSets.Of <E>(Net.Vpc.Upa.UserFieldModifier.SYSTEM), Net.Vpc.Upa.FlagSets.Of <E>(Net.Vpc.Upa.UserFieldModifier.UPDATE), null, dt, -1);
idField.SetAccessLevel(Net.Vpc.Upa.AccessLevel.PRIVATE);
}
else
{
idField.SetUserExcludeModifiers(idField.GetUserExcludeModifiers().Add(Net.Vpc.Upa.UserFieldModifier.UPDATE));
}
}
manyToOneField = baseField;
}
else
{
sourceFieldNames.Add(baseField.GetName());
if (relationDescriptor.GetMappedTo() != null && relationDescriptor.GetMappedTo().Length > 0)
{
if (relationDescriptor.GetMappedTo().Length > 1)
{
throw new System.ArgumentException("mappedTo cannot only apply to single Entity Field");
}
manyToOneField = sourceEntity.GetField(relationDescriptor.GetMappedTo()[0]);
}
}
}
nullable = true;
//TODO FIX ME
for (int i = 0; i < (sourceFieldNames).Count; i++)
{
Net.Vpc.Upa.Field slaveField = sourceEntity.GetField(sourceFieldNames[i]);
Net.Vpc.Upa.Types.DataType dataType = slaveField.GetDataType();
if (dataType == null)
{
//inherit master DataType
if ((targetEntity.GetPrimaryFields()).Count > i)
{
Net.Vpc.Upa.Types.DataType d = targetEntity.GetPrimaryFields()[i].GetDataType();
d = (Net.Vpc.Upa.Types.DataType)d.Copy();
d.SetNullable(nullable);
slaveField.SetDataType(d);
//reset transform!
slaveField.SetTypeTransform(null);
}
else
{
throw new System.ArgumentException("Invalid Relation");
}
}
}
filter = relationDescriptor.GetFilter();
// if (baseFieldType instanceof ManyToOneType) {
// manyToOneField = baseField;
// } else if (sourceFieldNames.size() == 1) {
// DataType slaveType = slaveField.getDataType();
// if (slaveType instanceof ManyToOneType) {
// manyToOneField = slaveField;
// }
// }
return(true);
}
