Probe implementation is linked to a primitive character field, or a field that could be assimilated to a character primitive. A probe is thread-safe. This probe make a buffer of the values. In order to be updated, the sync() function must be invoked. Then, the new value is read from the associated field, and the probe listeners are notified.
manager - the creator of this probe, and its manager.
name - the name of the probe
uri - the UI of the field.
field - the accessor to the probed field.
factories - the provider of factories tool.