Package javax.persistence
Annotation Interface Index
Used in schema generation to specify creation of an index.
Note that it is not necessary to specify an index for a primary key, as the primary key index will be created automatically.
The syntax of the columnList
element is a
column_list
, as follows:
column::= index_column [,index_column]* index_column::= column_name [ASC | DESC]
If ASC
or DESC
is not specified,
ASC
(ascending order) is assumed.
- Since:
- Java Persistence 2.1
- See Also:
-
Required Element Summary
Modifier and TypeRequired ElementDescription(Required) The names of the columns to be included in the index, in order. -
Optional Element Summary