Examples of ptolemy.actor.util.TotallyOrderedSet

ptolemy.actor.util.TotallyOrderedSet
An object of this class is a totally ordered set with an increasing order. The order between any two elements in the set can be checked by calling the compare() method of a comparator associated with this object. An element, a, in this set is said to precede another one, b, if compare(a, b) returns -1.
The set does not contain repeated elements, which means comparing any two elements in this set never returns 0. @author Jie Liu, Haiyang Zheng @version $Id: TotallyOrderedSet.java,v 1.5 2007/12/06 18:31:26 cxh Exp $ @since Ptolemy II 5.2 @Pt.ProposedRating Green (hyzheng) @Pt.AcceptedRating Green (hyzheng)

            _breakpoints.clear();
        } else {
            if (_debugging) {
                _debug(getFullName(), "creates a breakpoint table.");
            }
            _breakpoints = new TotallyOrderedSet(new GeneralComparator());
        }


        // Instantiate an ODE solver, using the class name given
        // by ODESolver parameter, which is a string parameter.
        String solverClassName;

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    protected boolean _removeCurrentTimeFromBreakpointTable()
            throws IllegalActionException {
        // NOTE: We only remove elements from breakpoint table in this method
        // and the postfire() method of the CT director.
        boolean currentTimeIsABreakpoint = false;
        TotallyOrderedSet breakPoints = getBreakPoints();
        Time now = getModelTime();


        // If the current time is a breakpoint, remove it from table.
        if ((breakPoints != null) && !breakPoints.isEmpty()) {
            if (breakPoints.contains(now)) {
                // The current time is a break point.
                currentTimeIsABreakpoint = true;


                Time time = (Time) breakPoints.removeFirst();


                if (time.compareTo(now) < 0) {
                    // This should not happen for CTMultisolverDirector,
                    // but it is possible for CTEmbeddedDirector.
                    // When a CT refinement is made inactive for a long time
                    // and reentered, the previously stored breakpoints may
                    // be in the past... The same thing happens in the
                    // prefire() method of DE director.
                    breakPoints.removeAllLessThan(now);
                }


                if (_debugging) {
                    _debug("Remove " + now + " from the break-point list.");
                }

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     *  of this step. Return the refined step size.
     */
    private double _refinedStepWRTBreakpoints() {
        double refinedStepSize = getCurrentStepSize();


        TotallyOrderedSet breakpoints = getBreakPoints();
        if ((breakpoints != null) && !breakpoints.isEmpty()) {
            if (_debugging && _verbose) {
                _debug("The first breakpoint in the breakpoint list is at "
                        + breakpoints.first());
            }


            // NOTE: the breakpoint table is not changed.
            Time nextBreakpoint = ((Time) breakpoints.first());
            double maximAllowedStepSize = nextBreakpoint.subtract(
                    getModelTime()).getDoubleValue();


            if (maximAllowedStepSize < refinedStepSize) {
                refinedStepSize = maximAllowedStepSize;

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        // create a breakpoint table if necessary
        if (_debugging) {
            _debug(getFullName(), "create/clear break point table.");
        }


        TotallyOrderedSet breakpoints = getBreakPoints();


        if (breakpoints != null) {
            breakpoints.clear();
        } else {
            _breakpoints = new TotallyOrderedSet(new GeneralComparator());
        }
    }

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Related Classes of ptolemy.actor.util.TotallyOrderedSet

ptolemy.domains.continuous.kernel.ContinuousDirector

ptolemy.domains.ct.kernel.CTDirector

ptolemy.domains.ct.kernel.CTMultiSolverDirector

java.util.LinkedList

java.util.Iterator

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