| Interface | Description |
|---|---|
| Tracer<T> |
Records how nodes of interest have been reached.
|
| Class | Description |
|---|---|
| NoOpTrace<T> |
A "null object" implementation of
Trace. |
| NoOpTracer<T> |
Tracer that does nothing. |
| RealTracer<T> |
The obvious implementation of
Tracer. |
| Trace<T> |
Singly-linked list of nodes visited so far.
|