org.apache.avro.reflect

Annotation Type Union

@Retention(value=RUNTIME)
 @Target(value={TYPE,FIELD,PARAMETER,METHOD})
 @Documented
public @interface Union

Declares that a Java type should be represented by an Avro union schema. May be used for base classes or interfaces whose instantiable subclasses can be listed in the parameters to the @Union annotation. If applied to method parameters this determines the reflected message parameter type. If applied to a method, this determines its return type. A null schema may be specified with Void.

Required Element Summary

Required Elements

Modifier and Type	Required Element and Description
Class[]	value The instantiable classes that compose this union.

Element Detail

value

public abstract Class[] value

The instantiable classes that compose this union.