SubjectIdentifiers (query directive)

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Description

Returns all subject identifiers of the input topic.

Constructor

SubjectIdentifiers()

Examples

You can use SubjectIdentifiers directive alone to simply get the subject identifiers of the input topic 

importPackage(org.wandora.query2);
new SubjectIdentifiers()

Following example gets the base name of the input topic or the first subject identifier if it doesn't have a base name. 

importPackage(org.wandora.query2);
new If(
  new BaseName().where("#DEFAULT","!=",null),
  new BaseName(),
  new First(new SubjectIdentifiers())
)
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