/** Parses and validates a SQL query. For use within Optiq only. */
public static OptiqPrepare.ParseResult parse(
final OptiqConnection connection,
final OptiqSchema schema,
final List<String> schemaPath,
final String sql) {
final OptiqPrepare prepare = OptiqPrepare.DEFAULT_FACTORY.apply();
final OptiqPrepare.Context context = makeContext(connection, schema, schemaPath);
OptiqPrepare.Dummy.push(context);
try {
return prepare.parse(context, sql);
} finally {
OptiqPrepare.Dummy.pop(context);
}
}
private static OptiqPrepare.Context makeContext(
final OptiqConnection connection, final OptiqSchema schema, final List<String> schemaPath) {
if (connection == null) {
final OptiqPrepare.Context context0 = OptiqPrepare.Dummy.peek();
return makeContext(
context0.config(),
context0.getTypeFactory(),
context0.getDataContext(),
schema,
schemaPath);
} else {
return makeContext(
connection.config(),
connection.getTypeFactory(),
createDataContext(connection),
schema,
schemaPath);
}
}