javax.persistence

## Annotation Type DiscriminatorValue

    @Target(value=TYPE)
     @Retention(value=RUNTIME)
    public @interface DiscriminatorValue

Specifies the value of the discriminator column for entities of the given type.

The `DiscriminatorValue` annotation can only be specified on a concrete entity class.

If the `DiscriminatorValue` annotation is not specified and a discriminator column is used, a provider-specific function will be used to generate a value representing the entity type. If the `DiscriminatorType` is `STRING`, the discriminator value default is the entity name.

The inheritance strategy and the discriminator column are only specified in the root of an entity class hierarchy or subhierarchy in which a different inheritance strategy is applied. The discriminator value, if not defaulted, should be specified for each entity class in the hierarchy.

        Example:

        @Entity
        @Table(name="CUST")
        @Inheritance(strategy=SINGLE_TABLE)
        @DiscriminatorColumn(name="DISC", discriminatorType=STRING, length=20)
        @DiscriminatorValue("CUSTOMER")
        public class Customer { ... }

        @Entity
        @DiscriminatorValue("VCUSTOMER")
        public class ValuedCustomer extends Customer { ... }

Since:
  Java Persistence 1.0
See Also:
  `DiscriminatorColumn`

### Required Element Summary

Required Elements
`String` `value` (Optional) The value that indicates that the row is an entity of the annotated entity type.

### Element Detail

#### value

    public abstract String value

(Optional) The value that indicates that the row is an entity of the annotated entity type.

If the `DiscriminatorValue` annotation is not specified and a discriminator column is used, a provider-specific function will be used to generate a value representing the entity type. If the `DiscriminatorType` is `STRING`, the discriminator value default is the entity name.