/// <summary>
/// Returns a table definition from an OPL tuple schema.
///
/// The table definition is an array of N strings, each describing an element of the tuple.
/// </summary>
/// <param name="tupleSchema">The OPL Tuple schema</param>
/// <param name="includeType">If True, The table definition has the form "NAME TYPE" otherwise just "NAME"</param>
/// <returns>The table definition</returns>
private String[] TableDefinitionFromOplTupleSchema(ITupleSchema tupleSchema, bool includeType)
{
OplElementDefinition elementDefinition = this.Model.ModelDefinition.getElementDefinition(tupleSchema.Name);
OplTupleSchemaDefinition oplTupleSchema = elementDefinition.asTupleSchema();
String[] fields = new String[tupleSchema.Size];
for (int i = 0; i < tupleSchema.Size; i++)
{
String columnName = tupleSchema.GetColumnName(i);
String field = columnName;
if (includeType)
{
OplElementDefinitionType.Type oplType = oplTupleSchema.getComponent(i).getElementDefinitionType();
String sqlType = null;
if (oplType == OplElementDefinitionType.Type.INTEGER)
{
sqlType = "INT";
}
else if (oplType == OplElementDefinitionType.Type.FLOAT)
{
sqlType = "FLOAT";
}
else if (oplType == OplElementDefinitionType.Type.STRING)
{
sqlType = "VARCHAR(30)";
}
field += " " + sqlType;
}
fields[i] = field;
}
return(fields);
}
private void InsertIntoTable(DbConnection con, ITupleSchema tupleSchema, ITuple tuple, string insertCommand)
{
OplElementDefinition elementDefinition = this.Model.ModelDefinition.getElementDefinition(tupleSchema.Name);
OplTupleSchemaDefinition tupleDef = elementDefinition.asTupleSchema();
using (DbCommand insert = con.CreateCommand())
{
insert.CommandText = insertCommand;
for (int i = 0; i < tupleSchema.Size; i++)
{
OplElementDefinitionType.Type oplType = tupleDef.getComponent(i).getElementDefinitionType();
object oplValue = null;
if (oplType == OplElementDefinitionType.Type.INTEGER)
{
oplValue = tuple.GetIntValue(i);
}
else if (oplType == OplElementDefinitionType.Type.FLOAT)
{
oplValue = tuple.GetNumValue(i);
}
else if (oplType == OplElementDefinitionType.Type.STRING)
{
oplValue = tuple.GetStringValue(i);
}
DbUtils.AddParameterWithValue(insert, "@value" + i, oplValue);
}
insert.ExecuteNonQuery();
}
}
/// <summary>
/// Populates array names and types with the information from the tuple schema.
/// </summary>
/// <param name="schema">The tuple definition</param>
/// <param name="names">Contains the field names</param>
/// <param name="types">Contains the field types</param>
private void FillNamesAndTypes(ITupleSchema schema, string[] names, OplElementDefinitionType.Type[] types)
{
OplElementDefinition elementDefinition = this.modelDefinition.getElementDefinition(schema.Name);
OplTupleSchemaDefinition tupleSchema = elementDefinition.asTupleSchema();
for (int i = 0; i < schema.Size; i++)
{
types[i] = tupleSchema.getComponent(i).getElementDefinitionType();
names[i] = schema.GetColumnName(i);
}
}
/// <summary>
/// Reads the set or tuple from the specified data reader.
/// </summary>
/// <param name="name">set or tuple name.</param>
/// <param name="reader">data source.</param>
private void ReadSetOrTuple(String name, DbDataReader reader)
{
OplElementDefinition def = this.modelDefinition.getElementDefinition(name);
OplElementDefinitionType.Type type = def.getElementDefinitionType();
OplElementDefinitionType.Type leaf = def.getLeaf().getElementDefinitionType();
if (type == OplElementDefinitionType.Type.SET)
{
if (leaf == OplElementDefinitionType.Type.TUPLE)
{
this.ReadTupleSet(name, reader);
}
else
{
this.ReadSet(leaf, name, reader);
}
}
}