public RelationshipView getRelationshipView(@Nonnull Relationship relationship) {
        Optional<RelationshipView> relationshipView = this.relationshipViews.stream().filter(rv -> rv.getId().equals(relationship.getId())).findFirst();
        return relationshipView.orElse(null);
    }
public RelationshipView getRelationshipView ( @ Nonnull Relationship relationship ) { Optional < RelationshipView > relationshipView = this . relationshipViews . stream ( ) . filter ( rv -> rv . getId ( ) . equals ( relationship . getId ( ) ) ) . findFirst ( ) ; return relationshipView . orElse ( null ) ; }
Gets the relationship view for the given relationship.

@param relationship  the Relationship to find the RelationshipView for
@return  an RelationshipView object, or null if the relationship doesn't exist in the view