net.java.ao.schema
Annotation Type Indexed

@Retention(value=RUNTIME)
@Target(value=METHOD)
public @interface Indexed

Marks the corresponding database field as requiring database indexing. This is different from the full-text search capabilities provided by Lucene in that the indexing is actually handled within the database itself. For full-text search configuration, see the Searchable annotation.

From a design standpoint, this annotation should be used quite sparingly. Any foreign key in an entity is already indexed (as enforced by AO migrations). Thus, use should be limited to fields against which queries will often be run (e.g. people.last_name and so on).

This annotation is only relevant to migrations. It has no effect upon "runtime" entity usage.

Author:

Daniel Spiewak