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@Target(value=TYPE) @Retention(value=RUNTIME) public @interface ASN1Extendable
Indicates that a type is extendable SET, SEQUENCE or CHOICE.
If an @ASN1Extendable
annotation is present on a SET, SEQUENCE or
CHOICE type class, the class can be base class for other SET, SEQUENCE or
CHOICE type class. This annotation will be used for defining common attribute
or method to some of SET, SEQUENCE or CHOICE classes by using class
inheritance. A type annotated as @ASN1Extendable
can't define own
elements.
For example :
@ASN1Extendable
public class IdentifiableSequence extends SEQUENCE {
private ID id;
public ID getID() {
return id;
}
public void SetID(ID id) {
this.id = id;
}
}
public class User extends IdentifiableSequence {
@ASN1ElementType(0)
public INTEGER userNo;
@ASN1ElementType(value = 1, optional = true)
public PrintableString userName;
}
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