Examples of ptolemy.actor.TypedIOPort

ptolemy.actor.TypedIOPort
An IOPort with a type. This class implements the Typeable interface. The type is represented by an instance of Type in data.type package. It can be declared by calling setTypeEquals(). If this method is not called, or called with a BaseType.UNKNOWN argument, the type of this port will be set by type resolution using the type constraints. The type constraints on this port can be specified using the methods defined in the Typeable interface.
This class keeps a list of TypeListeners. Whenever the type changes, this class will generate an instance of TypeEvent and pass it to the listeners by calling their typeChanged() method. A TypeListener register its interest in the type change event of this port by calling addTypeListener(), and can be removed from the listener list by calling the removeTypeListener().
A TypedIOPort can only link to instances of TypedIORelation. Derived classes may further constrain links to a subclass of TypedIORelation. To do this, they should override the protected methods _link() and _linkInside() to throw an exception if their arguments are not of the appropriate type. Similarly, an TypeIOPort can only be contained by a class derived from ComponentEntity and implementing the TypedActor interface. Subclasses may further constrain the containers by overriding _checkContainer().
Note that actors that call some of the setTypeXXX methods may also need to have a clone() method. Although the base classes neatly handle most aspects of the clone operation, there are subtleties involved with cloning type constraints. Absolute type constraints on ports and parameters are carried automatically into the clone, so clone() methods should never call setTypeEquals(). However, relative type constraints of the other setTypeXXX() methods are not cloned automatically because of the difficulty of ensuring that the other object being referred to in a relative constraint is the intended one.
For example the Ramp actor constructor calls:
```
 output.setTypeAtLeast(init); 
```
so the clone() method of the Ramp actor calls:
```
 newObject.output.setTypeAtLeast(newObject.init); 
```
@author Yuhong Xiong, Lukito Muliadi @version $Id: TypedIOPort.java,v 1.167 2007/12/06 21:56:14 cxh Exp $ @since Ptolemy II 0.2 @Pt.ProposedRating Green (yuhong) @Pt.AcceptedRating Yellow (neuendor)

     */
    public SignatureVerifier(CompositeEntity container, String name)
            throws NameDuplicationException, IllegalActionException {
        super(container, name);


        signature = new TypedIOPort(this, "signature", true, false);
        signature.setTypeEquals(new ArrayType(BaseType.UNSIGNED_BYTE));


        publicKey = new TypedIOPort(this, "publicKey", true, false);
        publicKey.setTypeEquals(KeyToken.KEY);
    }

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                                .valueOf(iop.isMultiport()));
                    }
                }


                if (p instanceof TypedIOPort) {
                    TypedIOPort tiop = (TypedIOPort) p;


                    if (_columnNames.contains(ColumnNames.COL_TYPE)) {
                        TypeAttribute _type = (TypeAttribute) (tiop
                                .getAttribute("_type"));


                        if (_type != null) {
                            portInfo.put(ColumnNames.COL_TYPE, _type
                                    .getExpression());

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        super(container, name);


        // Note that the parent class (NonStrictTest) does not have a multiport
        // input port.
        input.setMultiport(true);
        output = new TypedIOPort(this, "output", false, true);
        output.setTypeEquals(BaseType.BOOLEAN);
    }

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        algorithm.setPersistent(false);


        // Hide the algorithm parameter.
        algorithm.setVisibility(Settable.EXPERT);


        key = new TypedIOPort(this, "key", true, false);
        key.setTypeEquals(KeyToken.KEY);


        // Hide the keySize parameter, it is not used.
        keySize.setVisibility(Settable.EXPERT);
    }

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    public ArrayPlotter(CompositeEntity container, String name)
            throws IllegalActionException, NameDuplicationException {
        super(container, name);


        // Create the input port and make it a multiport.
        input = new TypedIOPort(this, "input", true, false);
        input.setMultiport(true);
        input.setTypeEquals(BaseType.DOUBLE);
        input.setTypeEquals(new ArrayType(BaseType.DOUBLE));


        iterationsPerUpdate = new Parameter(this, "iterationsPerUpdate");

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     *   an entity already in the container.
     */
    public ThresholdMonitor(CompositeEntity container, String name)
            throws IllegalActionException, NameDuplicationException {
        super(container, name);
        input = new TypedIOPort(this, "input", true, false);
        input.setMultiport(false);
        input.setTypeEquals(BaseType.DOUBLE);
        new Parameter(input, "signalType", new StringToken("CONTINUOUS"));


        output = new TypedIOPort(this, "output", false, true);
        output.setMultiport(false);
        output.setTypeEquals(BaseType.BOOLEAN);
        new Parameter(output, "signalType", new StringToken("DISCRETE"));


        _thWidth = 1e-2;

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    public SequencePlotter(CompositeEntity container, String name)
            throws IllegalActionException, NameDuplicationException {
        super(container, name);


        // Create the input port and make it a multiport.
        input = new TypedIOPort(this, "input", true, false);
        input.setMultiport(true);
        input.setTypeEquals(BaseType.DOUBLE);


        // set the parameters
        xInit = new Parameter(this, "xInit", new DoubleToken(0.0));

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     * @exception IllegalActionException If there was an internal problem.
     */
    public ContinuousTransferFunction(CompositeEntity container, String name)
            throws NameDuplicationException, IllegalActionException {
        super(container, name);
        input = new TypedIOPort(this, "input", true, false);
        output = new TypedIOPort(this, "output", false, true);
        _opaque = true;


        numerator = new Parameter(this, "numerator");
        numerator.setExpression("{1.0}");
        numerator.setTypeEquals(new ArrayType(BaseType.DOUBLE));

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     */
    public Display(CompositeEntity container, String name)
            throws IllegalActionException, NameDuplicationException {
        super(container, name);


        input = new TypedIOPort(this, "input", true, false);
        input.setMultiport(true);
        input.setTypeEquals(BaseType.GENERAL);


        rowsDisplayed = new Parameter(this, "rowsDisplayed");
        rowsDisplayed.setExpression("10");

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            // Connect state feedback expressions.
            for (int i = 0; i < n; i++) {
                // One port for each state variable.
                for (int k = 0; k < n; k++) {
                    TypedIOPort port = new TypedIOPort(equations[i], states[k],
                            true, false);
                    port.setTypeEquals(BaseType.DOUBLE);
                    port.link(stateRelations[k]);
                }


                // One port for each input variable.
                for (int k = 0; k < m; k++) {
                    TypedIOPort port = new TypedIOPort(equations[i], inputs[k],
                            true, false);
                    port.setTypeEquals(BaseType.DOUBLE);
                    port.link(inputRelations[k]);
                }
            }


            // Connect output expressions.
            // The policy now is that the output should never directly
            // depend on the input. The output Expression actors will no
            // longer have input ports that represent the input of this
            // composite actor.
            for (int l = 0; l < r; l++) {
                // One port for each state variable.
                for (int k = 0; k < n; k++) {
                    TypedIOPort port = new TypedIOPort(maps[l], states[k],
                            true, false);
                    port.setTypeEquals(BaseType.DOUBLE);
                    port.link(stateRelations[k]);
                }


                /*
                 // One port for each input variable.

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