question: private CnATreeElement unifyLinks ( CnATreeElement sourceElement , CnATreeElement destinationElement ) throws CommandException { for ( CnALink linkDown : sourceElement . getLinksDown ( ) ) { createLink ( destinationElement , linkDown . getDependency ( ) , linkDown . getRelationId ( ) ) ; } for ( CnALink linkUp : sourceElement . getLinksUp ( ) ) { createLink ( linkUp . getDependant ( ) , destinationElement , linkUp . getRelationId ( ) ) ; } return destinationElement ; }
target:  Copies all links from the source element to the destination element.