public UserType GetUserType(ObjectName typeName)
{
UserType userType;
if (!typesCache.TryGetValue(typeName, out userType)) {
var typeTable = Transaction.GetTable(TypeTableName);
var membersTable = Transaction.GetTable(TypeMemberTableName);
var schemaName = typeName.ParentName;
var name = typeName.Name;
var schemaColumn = typeTable.GetResolvedColumnName(1);
var nameColumn = typeTable.GetResolvedColumnName(2);
var idColumn = membersTable.GetResolvedColumnName(0);
UserTypeInfo typeInfo;
using (var session = new SystemSession(Transaction)) {
using (var query = session.CreateQuery()) {
var t = typeTable.SimpleSelect(query, schemaColumn, SqlExpressionType.Equal, SqlExpression.Constant(schemaName));
t = t.ExhaustiveSelect(query,
SqlExpression.Equal(SqlExpression.Reference(nameColumn), SqlExpression.Constant(name)));
if (t.RowCount == 0)
return null;
var id = t.GetValue(0, 0);
var parentField = t.GetValue(0, 3);
ObjectName parentType = null;
if (!Field.IsNullField(parentField)) {
parentType = ObjectName.Parse(parentField.Value.ToString());
}
typeInfo = new UserTypeInfo(typeName, parentType);
var isSealedField = t.GetValue(0, 4);
var isAbstractField = t.GetValue(0, 5);
if (!Field.IsNullField(isSealedField)) {
typeInfo.IsSealed = (SqlBoolean) isSealedField.AsBoolean().Value;
}
if (!Field.IsNullField(isAbstractField)) {
typeInfo.IsAbstract = (SqlBoolean) isAbstractField.AsBoolean().Value;
}
var owner = t.GetValue(0, 6).Value.ToString();
typeInfo.Owner = owner;
var t2 = membersTable.SimpleSelect(query, idColumn, SqlExpressionType.Equal, SqlExpression.Constant(id));
foreach (var row in t2) {
var memberName = row.GetValue(1).Value.ToString();
var memberTypeString = row.GetValue(2).Value.ToString();
var memberType = SqlType.Parse(Transaction.Context, memberTypeString);
if (memberType == null)
throw new InvalidOperationException(String.Format("Cannot find the type '{0}' for member '{1}' of type '{2}'.",
memberTypeString, memberName, typeName));
typeInfo.AddMember(memberName, memberType);
}
}
}
userType = new UserType(typeInfo);
typesCache[typeName] = userType;
}
return userType;
}
public InitFunction(UserType type, IDictionary<string, SqlType> members)
{
FunctionInfo = CreateFunctionInfo(type.FullName, members);
Type = type;
}
public static void TestSetUp()
{
var typeInfo = new UserTypeInfo(ObjectName.Parse("APP.test_type"));
typeInfo.AddMember("a", PrimitiveTypes.Integer());
Type = new UserType(typeInfo);
}
