android.lib.database

Annotation Type UniqueCompositeIndex

@Target(value=FIELD)
@Retention(value=RUNTIME)
public @interface UniqueCompositeIndex

Marks a field as part of an unique composite index.

The annotated field must also be annotated with @Column.

The annotated field can also be marked as a single-column index by using @Index.

To mark a field as part of a non-unique composite index, use @CompositeIndex.

See Also:

Column, Index, CompositeIndex

Required Element Summary

Required Elements

Modifier and Type	Required Element and Description
int	order The order of the annotated field in the unique composite index.

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
java.lang.String[]	value The names of the unique composite indexes.

Element Detail

order

public abstract int order

The order of the annotated field in the unique composite index.

The value can be arbitrary. The final order is determined by comparing this value.

value

public abstract java.lang.String[] value

The names of the unique composite indexes.

The annotated field can be a part of any number of composite indexes.

When there is more than one field annotated, all of them will be included in the composite index under this name.

value cannot be null.

Default:

{}