Examples of org.eclipse.ui.IMemento

org.eclipse.ui.IMemento
Interface to a memento used for saving the important state of an object in a form that can be persisted in the file system.
Mementos were designed with the following requirements in mind:
1. Certain objects need to be saved and restored across platform sessions.
2. When an object is restored, an appropriate class for an object might not be available. It must be possible to skip an object in this case.
3. When an object is restored, the appropriate class for the object may be different from the one when the object was originally saved. If so, the new class should still be able to read the old form of the data.
Mementos meet these requirements by providing support for storing a mapping of arbitrary string keys to primitive values, and by allowing mementos to have other mementos as children (arranged into a tree). A robust external storage format based on XML is used.
The key for an attribute may be any alpha numeric value. However, the value of TAG_ID is reserved for internal use.
This interface is not intended to be implemented or extended by clients.
@see IPersistableElement @see IElementFactory

        memento.putInteger(IWorkbenchConstants.TAG_FAST_VIEW_SIDE, getSide());


        Iterator iter = viewOrientation.keySet().iterator();
        while (iter.hasNext()) {
            String next = (String) iter.next();
            IMemento orientation = memento
                    .createChild(IWorkbenchConstants.TAG_FAST_VIEW_ORIENTATION);


            orientation.putString(IWorkbenchConstants.TAG_VIEW, next);
            orientation.putInteger(IWorkbenchConstants.TAG_POSITION,
                    ((Integer) viewOrientation.get(next)).intValue());
        }


    }

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        }


        IMemento[] orientations = memento
                .getChildren(IWorkbenchConstants.TAG_FAST_VIEW_ORIENTATION);
        for (int i = 0; i < orientations.length; i++) {
            IMemento next = orientations[i];


            viewOrientation.put(next.getString(IWorkbenchConstants.TAG_VIEW),
                    next.getInteger(IWorkbenchConstants.TAG_POSITION));
        }
    }

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    @Override
    public void init(IViewSite site, IMemento memento)
            throws PartInitException {


        if(memento != null) {
            IMemento etd = memento.getChild("encounterTrackerDetail");
            if(etd != null) {
                locked = etd.getBoolean("locked");


                selectedDisplayName = etd.getString("display");
            }
        }


        super.init(site, memento);
    }

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     * @see org.eclipse.ui.part.ViewPart#saveState(org.eclipse.ui.IMemento)
     */
    @Override
    public void saveState(IMemento memento) {


        IMemento etd = memento.createChild("encounterTrackerDetail");
        etd.putBoolean("locked", locked);
        if(selectedDisplay != null) {
            etd.putString("display", selectedDisplayName);
        }
        if(encounterParticipant != null) {
            // etd.putString("encounterParticipant", encounterParticipant.)
        }

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    memento.createChild("tsLocation", tsLocationText.getText());
    memento.createChild("documents");
    for (DocumentData documentData : documentList) {
      String docPath = documentData.getDocument().getAbsolutePath();
      String docName = "document";
      IMemento documentMemento = memento.getChild("documents");
      documentMemento.createChild(docName, docPath);
    }
  }

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  public void restoreState(IMemento memento) {
    if (memento == null) {
      return;
    }
    IMemento inputDirectory = memento.getChild("inputDirectory");
    if (inputDirectory != null) {
      inputDirectoryText.setText(inputDirectory.getID());
    }
    IMemento testDirectory = memento.getChild("testDirectory");
    if (testDirectory != null) {
      testDirectoryText.setText(testDirectory.getID());
    }
    IMemento tsLocation = memento.getChild("tsLocation");
    if (tsLocation != null) {
      tsLocationText.setText(tsLocation.getID());
    }
    IMemento documents = memento.getChild("documents");
    if (documents != null) {
      for (IMemento document : documents.getChildren("document")) {
        DocumentData docData = new DocumentData(new File(document.getID()));
        documentList.add(docData);
      }
      tableViewer.setInput(documentList);
      tableViewer.refresh();

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  }


  public void saveState(IMemento memento) {
    for (ConstraintData constraintData : constraintList) {
      if (constraintData.getConstraint() instanceof SimpleRutaRuleConstraint) {
        IMemento currentMemento = memento.createChild("constraint", "SimpleRutaConstraint");
        SimpleRutaRuleConstraint constraint = (SimpleRutaRuleConstraint) constraintData
                .getConstraint();
        currentMemento.createChild("Data", constraint.getData());
        currentMemento.createChild("Description", constraint.getDescription());
        currentMemento.createChild("Weight", "" + constraintData.getWeight());
      }


      if (constraintData.getConstraint() instanceof RutaRuleListConstraint) {
        IMemento currentMemento = memento.createChild("constraint", "ListRutaConstraint");
        RutaRuleListConstraint constraint = (RutaRuleListConstraint) constraintData.getConstraint();
        currentMemento.createChild("Data", constraint.getData());
        currentMemento.createChild("Description", constraint.getDescription());
        currentMemento.createChild("Weight", "" + constraintData.getWeight());
      }


      if (constraintData.getConstraint() instanceof RutaGEConstraint) {
        IMemento currentMemento = memento.createChild("constraint", "GEConstraint");
        RutaGEConstraint constraint = (RutaGEConstraint) constraintData.getConstraint();
        currentMemento.createChild("Data", constraint.getData());
        currentMemento.createChild("Description", constraint.getDescription());
        currentMemento.createChild("Weight", "" + constraintData.getWeight());
      }
    }
  }

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  public void restoreState(IMemento memento) {
    if (memento == null)
      return;


    IMemento itm = memento.getChild("includedTypes");
    if (itm != null) {
      String id = itm.getID();
      String[] split = id.split("");
      List<String> l = new ArrayList<String>();
      for (String string : split) {
        if (!StringUtils.isBlank(string)) {
          l.add(string);
        }
      }
      setIncludedTypes(l);
    }


    IMemento etm = memento.getChild("excludedTypes");
    if (etm != null) {
      String id = etm.getID();
      String[] split = id.split("");
      List<String> l = new ArrayList<String>();
      for (String string : split) {
        if (!StringUtils.isBlank(string)) {
          l.add(string);

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  public void restoreState(IMemento memento) {
    if (memento == null)
      return;


    IMemento dir = memento.getChild("documentSource");
    if (dir != null) {
      String id = dir.getID();
      documentSource.setText(id);
    }


    IMemento dir2 = memento.getChild("documentSink");
    if (dir2 != null) {
      String id = dir2.getID();
      documentSink.setText(id);
    }


    IMemento tsName = memento.getChild("typeSystem");
    if (tsName != null) {
      String id = tsName.getID();
      pathToTypeSystem.setText(id);
    }


    IMemento selectedTypes = memento.getChild("typesToCheck");
    if (selectedTypes != null) {
      typesToCheck = new HashMap<String, Set<String>>();
      for (IMemento mementoTypesToCheck : selectedTypes.getChildren(selectedTypes.getID())) {
        String typeName = mementoTypesToCheck.getID();
        Set<String> features = new HashSet<String>();
        for (IMemento mementoFeature : mementoTypesToCheck.getChildren("feature")) {
          features.add(mementoFeature.getID());
        }
        typesToCheck.put(typeName, features);
      }
    }
    IMemento uncheckedTypes = memento.getChild("typesToTransferUnchecked");
    if (uncheckedTypes != null) {
      typesToTransferUnchecked = new HashSet<String>();
      for (IMemento mementoUnchecked : uncheckedTypes.getChildren(uncheckedTypes.getID())) {
        String typeName = mementoUnchecked.getID();
        typesToTransferUnchecked.add(typeName);
      }
    }

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  public void saveState(IMemento memento) {
    memento.createChild("documentSource", documentSource.getText());
    memento.createChild("documentSink", documentSink.getText());
    memento.createChild("typeSystem", pathToTypeSystem.getText());


    IMemento selectedTypesMemento = memento.createChild("typesToCheck", "type");
    for (Entry<String, Set<String>> checkedTypeEntry : typesToCheck.entrySet()) {
      IMemento selectedTypeMemento = selectedTypesMemento.createChild("type",
              checkedTypeEntry.getKey());
      for (String feature : checkedTypeEntry.getValue()) {
        selectedTypeMemento.createChild("feature", feature);
      }
    }


    IMemento uncheckTypesMemento = memento.createChild("typesToTransferUnchecked", "unchecked");
    for (String uncheckedTypeName : typesToTransferUnchecked) {
      uncheckTypesMemento.createChild("unchecked", uncheckedTypeName);
    }


  }

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