ResultSetMetaData

ResultSetMetaData describes the columns returned by a query.

Unlike JDBC-oriented APIs, NeuG returns native driver Types instead of SQL type codes.

Example


ResultSetMetaData metaData = rs.getMetaData();
String columnName = metaData.getColumnName(0);
Types columnType = metaData.getColumnType(0);
String typeName = metaData.getColumnTypeName(0);

Common Methods

getColumnCount(int)
getColumnName(int)
getColumnType(int)
getColumnTypeName(int)
isNullable(int)
isSigned(int)

Why Native Types

The NeuG Java driver is not designed as a JDBC wrapper. Returning native Types makes it easier to:

preserve NeuG-specific type information
avoid lossy JDBC mappings
build driver-native abstractions on top of metadata

Example Dispatch


Types type = rs.getMetaData().getColumnType(0);
if (type == Types.INT64) {
    long value = rs.getLong(0);
}