com.triactive.jdo.store.sql.expr
Interface ResultExpression

All Known Implementing Classes:

FcoResultExpression, NamedResultExpression, ResultAsOther, ResultByConstructor

public interface ResultExpression

Method Summary

java.lang.Class	getResultType() Returns the type of objects produced by this result expression.
ResultObjectFactory	newResultObjectFactory(java.sql.ResultSet rs) Generates a result object factory to convert expression values from the specified SQL result set into Java objects.

Method Detail

getResultType

public java.lang.Class getResultType()

Returns the type of objects produced by this result expression.

Returns:

The type of objects produced by this result expression. Never returns a primitive type.

newResultObjectFactory

public ResultObjectFactory newResultObjectFactory(java.sql.ResultSet rs)
                                           throws java.sql.SQLException

Generates a result object factory to convert expression values from the specified SQL result set into Java objects.

Parameters:

rs - the result set containing the columns backing the result expression

Returns:

a new factory that can produce result Java objects of the correct type

Throws:

java.sql.SQLException - if a database error occurs