Examples of ptolemy.kernel.Port

ptolemy.kernel.Port
A Port is the interface of an Entity to any number of Relations. Normally, a Port is contained by an Entity, although a port may exist with no container. The role of a port is to aggregate a set of links to relations. Thus, for example, to represent a directed graph, entities can be created with two ports, one for incoming arcs and one for outgoing arcs. More generally, the arcs to an entity may be divided into any number of subsets, with one port representing each subset.
A Port can link to any instance of Relation. Derived classes may wish to constrain links to a subclass of Relation. To do this, subclasses should override the protected method {@link #_checkLink(Relation)} tothrow an exception if its argument is a relation that is not of the appropriate subclass. Similarly, if a subclass wishes to constrain the containers of the port to be of a subclass of Entity, they should override the protected method {@link #_checkContainer(Entity)}. @author Mudit Goel, Edward A. Lee, Jie Liu @version $Id: Port.java,v 1.170 2006/09/21 15:40:03 cxh Exp $ @since Ptolemy II 0.2 @Pt.ProposedRating Green (eal) @Pt.AcceptedRating Green (cxh) @see Entity @see Relation

            List result = new LinkedList();
            CompositeEntity container = (CompositeEntity) getContainer();
            Iterator ports = container.portList().iterator();


            while (ports.hasNext()) {
                Port port = (Port) ports.next();


                if (port instanceof WirelessIOPort) {
                    WirelessIOPort castPort = (WirelessIOPort) port;


                    if (castPort.isInput()) {

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            while (entities.hasNext()) {
                Entity entity = (Entity) entities.next();
                Iterator ports = entity.portList().iterator();


                while (ports.hasNext()) {
                    Port port = (Port) ports.next();


                    if (port instanceof WirelessIOPort) {
                        WirelessIOPort castPort = (WirelessIOPort) port;


                        if (castPort.isOutput()) {

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        while (entities.hasNext()) {
            Entity entity = (Entity) entities.next();
            Iterator ports = entity.portList().iterator();


            while (ports.hasNext()) {
                Port port = (Port) ports.next();


                if (port instanceof WirelessIOPort) {
                    WirelessIOPort castPort = (WirelessIOPort) port;


                    if (castPort.isInput()) {

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            String theChannelName) throws IllegalActionException {
        List result = new LinkedList();
        Iterator ports = container.portList().iterator();


        while (ports.hasNext()) {
            Port port = (Port) ports.next();


            if (port instanceof WirelessIOPort) {
                WirelessIOPort castPort = (WirelessIOPort) port;


                if (castPort.isOutput()) {

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            String theChannelName) throws IllegalActionException {
        List result = new LinkedList();
        Iterator ports = container.portList().iterator();


        while (ports.hasNext()) {
            Port port = (Port) ports.next();


            if (port instanceof WirelessIOPort) {
                WirelessIOPort castPort = (WirelessIOPort) port;


                if (castPort.isInput()) {

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        while (entities.hasNext()) {
            Entity entity = (Entity) entities.next();
            Iterator ports = entity.portList().iterator();


            while (ports.hasNext()) {
                Port port = (Port) ports.next();


                if (port instanceof WirelessIOPort) {
                    WirelessIOPort castPort = (WirelessIOPort) port;


                    if (castPort.isOutput()) {

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    public PortHasNoContainer(Workspace workspace, String name)
            throws IllegalActionException, NameDuplicationException {
        super(workspace, name);


        // This port should be oke
        directoryOrURLPort = new Port(this, "directoryOrURL");


        startTrigger = new Port(this, "startTrigger");
        new Attribute(startTrigger, "_showName");


        startTrigger.setContainer(null);
    }

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    public PortNameProblem(Workspace workspace, String name)
            throws IllegalActionException, NameDuplicationException {
        super(workspace, name);


        // This port should be oke
        directoryOrURLPort = new Port(this, "directoryOrURL");


        // The name of the port should passed to the constructor should
        // match the name of the variable.  Entity.clone() assumes
        // that the names match.
        // Right:
        // poorlyNamedInput = new Port(this, "poorlyNamedInput");
        // Wrong:
        poorlyNamedInput = new Port(this, "input");
    }

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        for (Iterator entities = model.deepEntityList().iterator(); entities
                .hasNext();) {
            Entity entity = (Entity) entities.next();


            for (Iterator ports = entity.portList().iterator(); ports.hasNext();) {
                Port port = (Port) ports.next();
                Set set = analysis.getNotConstVariables(port);
                Variable variable;
                variable = DFUtilities.getRateVariable(port,
                        "tokenInitProduction");
                _listenToRateVariable(variable, rateVariables);

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    // Associate the given identifier as referring to some aspect of
    // the given input port.  If the given identifier is already
    // associated with another port, then throw an exception.
    private void _setIdentifierToPort(String name, Port inputPort)
            throws IllegalActionException {
        Port previousPort = (Port) _identifierToPort.get(name);


        if ((previousPort != null) && (previousPort != inputPort)) {
            throw new IllegalActionException("Name conflict in finite state"
                    + " machine.  The identifier \"" + name
                    + "\" is associated with the port " + previousPort

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