org.datanucleus.store.rdbms.query

Interface ResultObjectFactory<T>

Type Parameters:

T - Type of the returned object

All Known Implementing Classes:

AbstractROF, PersistentClassROF, ResultClassROF, ResultMetaDataROF

public interface ResultObjectFactory<T>

An object that reads result set rows and returns corresponding object(s) from them. Different queries accomplish this in different ways so a query supplies a suitable ResultObjectFactory to each QueryResult when it is executed. The QueryResult only uses it to turn ResultSet rows into objects and otherwise manages the ResultSet itself.

For example an implementation of this interface could return a single Persistent object per row (PersistentClassROF). Another implementation could return all columns of the result set as separate objects.

Method Summary

Modifier and Type	Method and Description
T	getObject() Instantiates object(s) from the current row of the given result set.
ResultSet	getResultSet() Accessor for the JDBC ResultSet being processed.

Method Detail

getResultSet

ResultSet getResultSet()

Accessor for the JDBC ResultSet being processed.

Returns:

The ResultSet

getObject

T getObject()

Instantiates object(s) from the current row of the given result set.

Returns:

The object(s) for this row of the ResultSet.