ptolemy.actor
Interface StateReceiver

All Known Implementing Classes:

GiottoReceiver, TDLReceiver

public interface StateReceiver

This is a marker interface for receivers that have state semantics. That is, whenever a get method is called on this receiver, the current token is always available and returned. Further more, if no put method is called between get methods, the returned tokens are always the same. Usually, the receivers that implement this interface have capacity of 1.

Receivers that do not implement this marker interface have event semantics, which means that when a get method is called on the receiver, the current token is returned and it is also removed from the receiver.

Since:

Ptolemy II 4.1

Version:

$Id: StateReceiver.java 43472 2006-08-21 23:16:56Z cxh $

Author:

Haiyang Zheng

See Also:

GiottoReceiver

Accepted Rating:

Red (hyzheng)

Proposed Rating:

Yellow (hyzheng)