org.cyberborean.rdfbeans.annotations

Annotation Type RDFSubject

@Target(value={METHOD,FIELD})
 @Retention(value=RUNTIME)
public @interface RDFSubject

Applied to: Method declaration
Value: prefix (String, optional)

@RDFSubject annotation indicates that the annotated getter method returns a value of the RDFBean object identifier property.

An RDFBean class or interface should declare only one identifier property. If the property is declared, all identifier properties inherited from other classes (interfaces) are ignored. Otherwise, if no identifier property is declared on a given class or interface, it can be inherited from the nearest ancestors.

If no identifier property is found in the classes/interfaces hierarchy, the RDFBean object cannot be represented with an RDF resource in the model. However, it is still possible to represent it as a blank node (anonymous RDFBean).

The prefix parameter defines the optional prefix part of RDFBean identifier and must contain either a namespace URI or a reference to namespace defined by RDFNamespaces annotation.

If the prefix is specified, it is expected that the method returns a local part of RDFBean identifier. Otherwise, the method must return a value of RDFBean identifier as a fully qualified name.

Examples:

 @RDFSubject(prefix="http://rdfbeans.example.com/persons/") 
 public String  getPersonId() {
...

 @RDFNamespaces("persons=http://rdfbeans.example.com/persons/");
...
 @RDFSubject(prefix="persons:") 
 public String getPersonId() { 
 ...

 @RDFSubject 
 public String getPersonId() { 
 ... // A fully qualified name must be returned

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
String	prefix An optional namespace prefix of RDFBean identifiers

Element Detail

prefix

public abstract String prefix

An optional namespace prefix of RDFBean identifiers

Default:

""