TargetItemAllowsChildren onNode = TargetItemAllowsChildren.get();
SourceIs fromTable = new SourceIs(table);
SourceIs fromTree = new SourceIs(tree1);
final Or fromTree1OrTable = new Or(fromTable, fromTree);
// Or could in the case be replaced with, keeping here as an example and
// test
@SuppressWarnings("unused")
SourceIs treeOrTable = new SourceIs(table, tree1);