Package ptolemy.domains.ddf.lib

Class DDFOrderedMerge

  • All Implemented Interfaces:
    java.lang.Cloneable, Actor, Executable, FiringsRecordable, Initializable, TypedActor, Changeable, Debuggable, DebugListener, Derivable, Instantiable, ModelErrorHandler, MoMLExportable, Moveable, Nameable
    @Deprecated
public class DDFOrderedMerge
extends OrderedMerge
    Deprecated.
    Use OrderedMerge, which now supports DDF.
    This actor merges two monotonically nondecreasing streams of tokens into one monotonically nondecreasing stream. On each firing, it reads data from one of the inputs. On the first firing, it simply records that token. On the second firing, it reads data from the other input and outputs the smaller of the recorded token and the one it just read. If they are equal, then it outputs the recorded token. It then records the larger token. On each subsequent firing, it reads a token from the input port that did not provide the recorded token, and produces at the output the smaller of the recorded token and the one just read.

    If both input sequences are nondecreasing, then the output sequence will be nondecreasing. Note that if the inputs are not nondecreasing, then the output is rather complex. The key is that in each firing, it produces the smaller of the recorded token and the token it is currently reading. This derived class only updates rate parameters to indicate the next input port.

    Since:
    Ptolemy II 4.1
    Version:
    $Id$
    Author:
    Gang Zhou
    Pt.AcceptedRating:
    Yellow (cxh)
    Pt.ProposedRating:
    Yellow (zgang)