Examples of ptolemy.kernel.util.NamedObj.requestChange()

ptolemy.kernel.util.NamedObj.requestChange()
Request that the given change be executed. In this base class, delegate the change request to the container, if there is one. If there is no container, then execute the request immediately, unless this object is deferring change requests. If setDeferChangeRequests() has been called with a true argument, then simply queue the request until either setDeferChangeRequests() is called with a false argument or executeChangeRequests() is called. If this object is already in the middle of executing a change request, then that execution is finished before this one is performed. Change listeners will be notified of success (or failure) of the request when it is executed. @param change The requested change. @see #executeChangeRequests() @see #setDeferringChangeRequests(boolean) @see Changeable

        if (host == null) {
            throw new TransformationException(
                    "Match result is invalid because "
                            + "it does not include the pattern.");
        }
        host.requestChange(transformer);
    }


    public static void transform(TransformationRule transformationRule,
            MatchResult matchResult) throws TransformationException {
        GraphTransformer transformer = new GraphTransformer(transformationRule,

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        if (host == null) {
            throw new TransformationException(
                    "Match result is invalid because "
                            + "it does not include the pattern.");
        }
        host.requestChange(transformer);
    }


    protected void _addConnections() throws TransformationException {
        for (NamedObj replacement : _replacementToHost.keySet()) {
            if (!(replacement instanceof Port || replacement instanceof Relation)) {

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                    dispatchGraphEvent(new GraphEvent(eventSource,
                            GraphEvent.STRUCTURE_CHANGED, getRoot()));
                }
            });
            request.setUndoable(true);
            container.requestChange(request);
        }
    }
}

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                        + "\"><property name=\"_location\" "
                        + "class=\"ptolemy.kernel.util.Location\" value=\"" + x
                        + ", " + y + "\"></property></property></group>";
                MoMLChangeRequest request = new MoMLChangeRequest(this,
                        context, moml);
                context.requestChange(request);
            }
        }
    }


    // /////////////////////////////////////////////////////////////////

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                        + "><property name=\"_location\" "
                        + "class=\"ptolemy.kernel.util.Location\" value=\"" + x
                        + ", " + y + "\"></property></entity></group>";
                MoMLChangeRequest request = new MoMLChangeRequest(this,
                        context, moml);
                context.requestChange(request);
            }
        }
    }


    // /////////////////////////////////////////////////////////////////

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            // NOTE: There is no need to listen for completion
            // or errors in this change request, since, in theory,
            // it will just work.  Will someone report the error
            // if one occurs?  I hope so...
            parent.requestChange(request);
        }
    }


    /** Called to notify that one of the entries has changed.
     *  This simply sets a flag that enables application of the change

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                        + " value=\"[" + x + ", " + y + "]\"/>\n"
                        + "</entity>\n";
            }


            ChangeRequest request = new MoMLChangeRequest(this, toplevel, moml);
            toplevel.requestChange(request);


            try {
                request.waitForCompletion();
            } catch (Exception ex) {
                throw new GraphException(ex);

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