BREAKING CHANGE

systems.dmx.core.ChildTopics

remove the 4 setRef() methods:

ChildTopics setRef(String compDefUri, long refTopicId);
ChildTopics setRef(String compDefUri, long refTopicId, ChildTopicsModel relatingAssocChildTopics);
ChildTopics setRef(String compDefUri, String refTopicUri);
ChildTopics setRef(String compDefUri, String refTopicUri, ChildTopicsModel relatingAssocChildTopics);

CODE TRANSFORMATION

Instead of

    topic.getChildTopics().setRef(compDefUri, ...);

write

    topic.update(mf.newChildTopicsModel().set(compDefUri, mf.newTopicReferenceModel(...)));

Note: "newTopicReferenceModel" is about to get a shorter Name, e.g. "topicRef"