org.springframework.data.cassandra.core.mapping

Annotation Type Indexed

@Documented
 @Retention(value=RUNTIME)
 @Target(value={FIELD,METHOD,ANNOTATION_TYPE,TYPE_USE})
public @interface Indexed

Identifies a secondary index in the table on a single column.

The following columns of a Table type can be annotated with Indexed:

• Scalar data types
• User-defined types
• Collection types
• Map type

Map types distinguish allows entry, key or value-level indexing with the restriction that only a single secondary index is allowed.

 @Table
 class Person {

        Map<@Indexed String, String> indexedKey; // allows CONTAINS KEY queries
        Map indexedValue; // allows CONTAINS queries
 }
 

Author:

Alex Shvid, Matthew T. Adams, Mark Paluch

See Also:

Table

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
String	value The name of the index.

Element Detail

value

public abstract String value

The name of the index. If null or empty, then the index name will be generated by Cassandra and will be unknown unless column metadata is used to discover the generated index name.

Default:

""