org.apache.openjpa.meta
Interface Order

All Superinterfaces:

Serializable

All Known Subinterfaces:

JDBCOrder

All Known Implementing Classes:

InMemoryRelatedFieldOrder, InMemoryValueOrder, JDBCColumnOrder, JDBCRelatedFieldOrder, JDBCValueOrder

public interface Order
extends Serializable

Order a field.

Author:

Abe White

Field Summary

static String

ELEMENT Token denoting to order by the element value.

Method Summary

Comparator	getComparator() Return a comparator for ordering by this element, or null if the ordering is done in the datastore.
String	getName() Return the name of the orderable.
boolean	isAscending() Order direction.

Field Detail

ELEMENT

static final String ELEMENT

Token denoting to order by the element value.

See Also:

Constant Field Values

Method Detail

getName

String getName()

Return the name of the orderable.

isAscending

boolean isAscending()

Order direction.

getComparator

Comparator getComparator()

Return a comparator for ordering by this element, or null if the ordering is done in the datastore.