Determine whether beforeTree and afterTree should be called.
By default, afterTree is disabled if beforeTree wasn't called before. Subclasses may change this to adjust this behavior.
For filterBeforeTree, true if beforeTree is to be called. For filterAfterTree, true if afterTree is to be called.
See Implementation
Determine whether beforeTree and afterTree should be called.
By default, afterTree is disabled if beforeTree wasn't called before. Subclasses may change this to adjust this behavior.