org.apache.avro.reflect
Annotation Type Union
@Retention(value=RUNTIME)
@Target(value={TYPE,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.
Required Element Summary |
Class[] |
value
The instantiable classes that compose this union. |
value
public abstract Class[] value
- The instantiable classes that compose this union.
Copyright © 2010 The Apache Software Foundation