Or (query directive)
From WandoraWiki
		
		
		
Description
Includes rows which satisfy at least one of inner filtering directive.
Constructor
Or(Directive d1,Directive d2,...)
Examples
importPackage(org.wandora.query2);
importPackage(org.wandora.topicmap);
new Instances().where(
  new Or(
    new IsOfType("http://www.wandora.org/core/associationtype"),
    new IsOfType("http://www.wandora.org/core/contenttype")
  )
)
This gets all instances of the input topic that are also instances of either association type or content type.