@JsonIgnore
    public DocRef getDocRef() {
        // Cache the docRef
        if (docRef == null) {
            docRef = new DocRef(type, uuid, name);
        }
        return docRef;
    }
@return True if this node's set of tags contains ALL the passed tags.
stroom-core-shared/src/main/java/stroom/explorer/shared/ExplorerNode.java