RelDataType createMockRowType(FarragoTypeFactory typeFactory) { return typeFactory.createStructType( new RelDataType[] { createMockColumnType(typeFactory), }, new String[] {MedMockNameDirectory.COLUMN_NAME}); }
// implement FarragoMedDataServer public FarragoMedColumnSet newColumnSet( String[] localName, Properties tableProps, FarragoTypeFactory typeFactory, RelDataType rowType, Map<String, Properties> columnPropMap) throws SQLException { if (rowType == null) { rowType = createMockRowType(typeFactory); } assert (rowType.getFieldList().size() == 1); RelDataType type = rowType.getFields()[0].getType(); assert (!type.isNullable()); assert (typeFactory.getClassForPrimitive(type) != null); // TODO jvs 5-Aug-2005: clean up usage of server properties // as defaults long nRows = -1; String rowCountSql = tableProps.getProperty(PROP_ROW_COUNT_SQL); if (rowCountSql != null) { // Attempt to issue a loopback query into Farrago to // get the number of rows to produce. DataSource loopbackDataSource = getLoopbackDataSource(); Connection connection = null; if (loopbackDataSource != null) { try { connection = loopbackDataSource.getConnection(); Statement stmt = connection.createStatement(); ResultSet resultSet = stmt.executeQuery(rowCountSql); if (resultSet.next()) { nRows = resultSet.getLong(1); } } finally { // It's OK not to clean up stmt and resultSet; // connection.close() will do that for us. if (connection != null) { connection.close(); } } } } if (nRows == -1) { nRows = getLongProperty( tableProps, PROP_ROW_COUNT, getLongProperty(getProperties(), PROP_ROW_COUNT, 10)); } String executorImpl = tableProps.getProperty( PROP_EXECUTOR_IMPL, getProperties().getProperty(PROP_EXECUTOR_IMPL, PROPVAL_JAVA)); assert (executorImpl.equals(PROPVAL_JAVA) || executorImpl.equals(PROPVAL_FENNEL)); String udxSpecificName = tableProps.getProperty(PROP_UDX_SPECIFIC_NAME); if (udxSpecificName != null) { assert (executorImpl.equals(PROPVAL_JAVA)); } checkNameMatch(getForeignSchemaName(), tableProps.getProperty(PROP_SCHEMA_NAME)); checkNameMatch(getForeignTableName(), tableProps.getProperty(PROP_TABLE_NAME)); return new MedMockColumnSet(this, localName, rowType, nRows, executorImpl, udxSpecificName); }
RelDataType createMockColumnType(FarragoTypeFactory typeFactory) { return typeFactory.createSqlType(SqlTypeName.INTEGER); }