org.apache.openjpa.jdbc.meta
Interface JDBCOrder

All Superinterfaces:

Order, Serializable

All Known Implementing Classes:

JDBCColumnOrder, JDBCRelatedFieldOrder, JDBCValueOrder

interface JDBCOrder
extends Order

Order in the datastore using JDBC.

Author:

Abe White

Field Summary

Fields inherited from interface org.apache.openjpa.meta.Order

ELEMENT

Method Summary

DBIdentifier	getIdentifier()
boolean	isInRelation() Whether the value is a member of the field's related type, rather than columns of the field itself.
void	order(Select sel, ClassMapping elem, Joins joins) Order by this value.

Methods inherited from interface org.apache.openjpa.meta.Order

getComparator, getName, isAscending

Method Detail

isInRelation

boolean isInRelation()

Whether the value is a member of the field's related type, rather than columns of the field itself.

order

void order(Select sel,
           ClassMapping elem,
           Joins joins)

Order by this value.

Parameters:

elem - if this value has independent mappings, the mapping we're selecting

getIdentifier

DBIdentifier getIdentifier()