public TelepathyObjectSchema FilterSchema(TelepathyFilterConfig config)
{
var typeConfig = config.GetObjectTypeConfig(Name);
int includedFields = 0;
for (int i = 0; i < NumFields; i++)
{
if (typeConfig.includesField(GetFieldName(i)))
{
includedFields++;
}
}
var filteredSchema = new TelepathyObjectSchema(Name, includedFields, PrimaryKey);
for (var i = 0; i < NumFields; i++)
{
if (typeConfig.includesField(GetFieldName(i)))
{
filteredSchema.AddField(GetFieldName(i), GetFieldType(i), GetReferencedType(i));
}
}
return(filteredSchema);
}
public TelepathyObjectSchema FindCommonSchema(TelepathyObjectSchema otherSchema)
{
if (!Name.Equals(otherSchema.Name))
{
throw new ArgumentException("Cannot find common schema of two schemas with different names!");
}
var commonFields = _fieldNames.Count(fieldName => otherSchema.GetPosition(fieldName) != -1);
var primaryKey = PrimaryKey.Equals(otherSchema.PrimaryKey) ? PrimaryKey : null;
TelepathyObjectSchema commonSchema = new TelepathyObjectSchema(Name, commonFields, primaryKey);
for (int i = 0; i < _fieldNames.Length; i++)
{
int otherFieldIndex = otherSchema.GetPosition(_fieldNames[i]);
if (otherFieldIndex != -1)
{
if (_fieldTypes[i] != otherSchema.GetFieldType(otherFieldIndex) ||
!ReferenceEquals(ReferencedTypes[i], otherSchema.GetReferencedType(otherFieldIndex)))
{
throw new ArgumentException("No common schema exists for " + Name + ": field " + _fieldNames[i] + " has unmatched types");
}
commonSchema.AddField(_fieldNames[i], _fieldTypes[i], ReferencedTypes[i]);
}
}
return(commonSchema);
}
public TelepathyObjectSchema FindUnionSchema(TelepathyObjectSchema otherSchema)
{
if (!Name.Equals(otherSchema.Name))
{
throw new ArgumentException("Cannot find common schema of two schemas with different names!");
}
int totalFields = otherSchema.NumFields;
foreach (var fieldName in _fieldNames)
{
if (otherSchema.GetPosition(fieldName) == -1)
{
totalFields++;
}
}
var primaryKey = PrimaryKey.Equals(otherSchema.PrimaryKey) ? PrimaryKey : null;
var unionSchema = new TelepathyObjectSchema(Name, totalFields, primaryKey);
for (int i = 0; i < _fieldNames.Length; i++)
{
unionSchema.AddField(_fieldNames[i], _fieldTypes[i], ReferencedTypes[i]);
}
for (int i = 0; i < otherSchema.NumFields; i++)
{
if (GetPosition(otherSchema.GetFieldName(i)) == -1)
{
unionSchema.AddField(otherSchema.GetFieldName(i), otherSchema.GetFieldType(i),
otherSchema.GetReferencedType(i));
}
}
return(unionSchema);
}