Package com.sun.msv.grammar

Class OtherExp

  • All Implemented Interfaces:
    java.io.Serializable
    Direct Known Subclasses:
    ExternalAttributeExp, OccurrenceExp
    public class OtherExp
extends Expression
    Base class for application-specific AGM annotation.

    This primitive has no meaning to MSV. For example, the following expression 

     Expression exp = new OtherExp( pool.createSequence(a,b) );
    is treated as if MSV sees the following, OtherExp-less expression: 
     Expression exp = pool.createSequence(a,b);

    By using this "transparency", application can implement derived classes of OtherExp and add application-specific information to AGM.

    For example, you can implement AnnotationInfoExp class that derives OtherExp and introduces "documentation" field. Then you'll write a customized XMLSchemaReader that parses <annotation> tag and mix AnnotationInfoExp into an AGM. Your application can then examine it and do some useful things.

    Those application-specific information added through OtherExp are completely ignored by MSV. So the annotated AGM can still be used just like anormal AGM.

    See Also:
    Serialized Form