Examples of MoMLChangeRequest

ptolemy.moml.MoMLChangeRequest
A mutation request specified in MoML. This class provides the preferred mechanism for implementing mutations on a model while it is executing. To use it, create an instance of this class, specifying MoML code as an argument to the constructor. Then queue the instance of this class with a composite entity by calling its requestChange() method.
If a context is given to the constructor, then the MoML will be executed in that context. If that context has other objects that defer their MoML definitions to it (i.e., it is a class definition and there are instances of the class), then the MoML will also be executed in the context of those objects that defer to it. Thus, the change to a class will propagate to instances. If the context is (deeply) contained by another object that has objects that defer their MoML definitions to it, then the changes are also propagated to those objects. Thus, even when class definitions are nested within class definitions, a change within a class definition will propagate to all instances of the class(es).
The parser used to implement the change will be the parser contained by a ParserAttribute of the top-level element of the context. If no context is given, or there is no ParserAttribute in its top level, then a new parser is created, and a new ParserAttribute is placed in the top level.
Note that if a context is specified that is above a class definition, and a change within the class definition is made by referencing the contents of the class definition using dotted names, then the change will not propagate. Thus, changes should be made in the most specific context (lowest level in the hierarchy) possible. @author Edward A. Lee @version $Id: MoMLChangeRequest.java,v 1.71 2006/02/27 22:24:53 cxh Exp $ @since Ptolemy II 1.0 @Pt.ProposedRating Yellow (eal) @Pt.AcceptedRating Red (neuendor)

Examples of ptolemy.moml.MoMLChangeRequest

            // handle the event dispatch specially:  An event is only
            // dispatched if both the head and the tail are attached.
            // This rather obnoxious hack is here because edge creation
            // is tricky and we can't rerender the edge while we are dragging
            // it.
            MoMLChangeRequest request = new MoMLChangeRequest(
                    ActorGraphModel.this, container, moml.toString()) {
                protected void _execute() throws Exception {
                    // If nonEmptyMoML is false, then the MoML code is empty.
                    // Do not execute it, as this will put spurious empty
                    // junk on the undo stack.
                    if (nonEmptyMoML) {
                        super._execute();
                    }


                    link.setTail(newLinkTail);


                    if (relationNameToAdd != null) {
                        ComponentRelation relation = container
                                .getRelation(relationNameToAdd);


                        if (relation == null) {
                            throw new InternalErrorException(
                                    "Tried to find relation with name "
                                            + relationNameToAdd
                                            + " in context " + container);
                        }


                        link.setRelation(relation);
                    } else {
                        link.setRelation(null);
                    }
                }
            };


            // Handle what happens if the mutation fails.
            request.addChangeListener(new LinkChangeListener(link, container,
                    failmoml));


            request.setUndoable(true);
            container.requestChange(request);
        }

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Examples of ptolemy.moml.MoMLChangeRequest

            moml.append("<vertex name=\"" + vertexName + "\" value=\"{");
            moml.append(point[0] + ", " + point[1]);
            moml.append("}\"/>\n");
            moml.append("</relation>");


            MoMLChangeRequest request = new MoMLChangeRequest(this, toplevel,
                    moml.toString());
            request.setUndoable(true);
            toplevel.requestChange(request);
        }

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Examples of ptolemy.moml.MoMLChangeRequest

                        + "\" class=\"" + object.getName() + "\"/>");
            }


            moml.append("</group>");


            MoMLChangeRequest request = new OffsetMoMLChangeRequest(this,
                    container, moml.toString());
            container.requestChange(request);
        }
    }

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Examples of ptolemy.moml.MoMLChangeRequest

                        + names.toString());
                return;
            }


            String moml = "<entity name=\"" + object.getName() + "\"/>";
            MoMLChangeRequest request = new MoMLChangeRequest(this, container,
                    moml);
            container.requestChange(request);
        }

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Examples of ptolemy.moml.MoMLChangeRequest


                // and queue a new change request to clean up the model
                // Note: JDK1.2.2 requires that this variable not be
                // called request or we get a compile error.
                // Note the source is NOT the graph model
                MoMLChangeRequest changeRequest = new MoMLChangeRequest(this,
                        _container, _failMoML.toString());


                // fail moml not undoable
                _container.requestChange(changeRequest);
            }

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Examples of ptolemy.moml.MoMLChangeRequest


            // Delete the port.
            String moml = "<deletePort name=\"" + port.getName() + "\"/>\n";


            // Note: The source is NOT the graph model.
            MoMLChangeRequest request = new MoMLChangeRequest(this, container,
                    moml);
            request.setUndoable(true);
            container.requestChange(request);
        }

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Examples of ptolemy.moml.MoMLChangeRequest

            // Delete the relation.
            String moml = "<deleteRelation name=\"" + relation.getName()
                    + "\"/>\n";


            // Note: The source is NOT the graph mode.
            MoMLChangeRequest request = new MoMLChangeRequest(this, container,
                    moml);
            request.setUndoable(true);
            container.requestChange(request);
        }

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Examples of ptolemy.moml.MoMLChangeRequest


    private void _setPatternObject(NamedObj replacementObject,
            String patternObjectName, boolean mergeWithPrevious) {
        String moml = "<property name=\"patternObject\" value=\""
                + patternObjectName + "\"/>";
        MoMLChangeRequest request = new MoMLChangeRequest(this,
                replacementObject, moml);
        request.setUndoable(true);
        request.setMergeWithPreviousUndo(mergeWithPrevious);
        replacementObject.requestChange(request);
    }

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Examples of ptolemy.moml.MoMLChangeRequest

                    // other link.  This avoids turning a direct connection
                    // into a half connection with a diamond.
                    // Note that the source is NOT the graphmodel, so this
                    // will trigger the changerequest listener to
                    // redraw the graph again.
                    MoMLChangeRequest request = new MoMLChangeRequest(
                            container, container, "<deleteRelation name=\""
                                    + relation.getName(container) + "\"/>\n");
                    request.setUndoable(true);


                    // Need to merge the undo for this request in with one that
                    // triggered it
                    request.setMergeWithPreviousUndo(true);
                    container.requestChange(request);


                    // If updating requires further updates to the model
                    // i.e. the above change request, then return false.
                    // this is so that rerendering doesn't happen until the

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Examples of ptolemy.moml.MoMLChangeRequest

                .attributeList(MatchResultTableau.Factory.class);
        for (Object attributeObject : factoryList) {
            MatchResultTableau.Factory factory = (MatchResultTableau.Factory) attributeObject;
            String momlTxt = "<deleteProperty name=\"" + factory.getName()
                    + "\"/>";
            MoMLChangeRequest request = new MoMLChangeRequest(originator,
                    entity, momlTxt);
            entity.requestChange(request);
        }
        for (Object subentity : entity.entityList(CompositeEntity.class)) {
            _unsetTableauFactory(originator, (CompositeEntity) subentity);

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