Examples of org.apache.myfaces.trinidad.model.CollectionModel

Package org.apache.myfaces.trinidad.model

Examples of org.apache.myfaces.trinidad.model.CollectionModel

org.apache.myfaces.trinidad.model.CollectionModel
The data model that is used by the Trinidad Table and Iterator components. This extends the Faces DataModel class and adds on support for rowKeys and sorting. Ordinary DataModels are still supported, and will automatically be wrapped into CollectionModels, but without the added functionality.

Row key support

In the Faces DataModel, rows are identified entirely by index. This causes major problems if the underlying data changes from one request to the next - a user request to delete one row may delete a different row because a row got added by another user, etc. To work around this, CollectionModel is based around row keys instead of indices. An implementation of CollectionModel must implement getRowKey() and setRowKey(), and handle conversion from integer indices to row keys. A trivial implementation might simply use Integer objects as the row keys, but a better version could use a unique ID in the row.
@author The Oracle ADF Faces Team

            @Override
            protected void renderResponse() throws Exception 
            {
                Object artists = getValue("#{artists.dataModel}");
                assert artists instanceof CollectionModel;
                CollectionModel collectionModel = (CollectionModel) artists;
                
                // Reorder the list               
                List<SortCriterion> criteria = new ArrayList<SortCriterion>();
                criteria.add(new SortCriterion("artist.name", true));
                collectionModel.setSortCriteria(criteria);
                
                // Check for correct ordering
                assertArtist(collectionModel, 5, ARTIST5_NAME);
                assertArtist(collectionModel, 4, ARTIST6_NAME);
                assertArtist(collectionModel, 3, ARTIST1_NAME);

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    RowKeySet state = getSelectedRowKeys();
    Iterator<Object> keys = state.iterator();
    if (keys.hasNext())
    {
      Object key = keys.next();
      CollectionModel model = getCollectionModel();
      Object old = model.getRowKey();
      try
      {
        model.setRowKey(key);
        if (isRowAvailable())
          return model.getRowData();
      }
      finally
      {
        model.setRowKey(old);
      }
    }
    return null;
  }

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  protected void processStamps(
    FacesContext context,
    PhaseId phaseId)
  {
    // Process all the children
    CollectionModel tableData = getCollectionModel();
    if (tableData.getRowCount() != 0)
    {
      int startIndex = getFirst();
      int endIndex = isShowAll() ? getRowCount()-1 : TableUtils.getLast(this);


      UIComponent detail = getDetailStamp();

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   * @see CollectionModel#getRowData(int)
   * @return null if the current row is unavailable
   */
  public final Object getRowData()
  {
    CollectionModel model = getCollectionModel();
    // we need to call isRowAvailable() here because the 1.0 sun RI was
    // throwing exceptions when getRowData() was called with rowIndex=-1
    return model.isRowAvailable() ? model.getRowData() : null;
  }

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    RowKeySet state = getSelectedRowKeys();
    Iterator<Object> keys = state.iterator();
    if (keys.hasNext()) 
    {
      Object key = keys.next();
      CollectionModel model = getCollectionModel();
      Object old = model.getRowKey();
      try
      {
        model.setRowKey(key);
        return model.getRowData();
      }
      finally
      {
        model.setRowKey(old);
      }
    }
    return null;
  }

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  @Override
  protected final CollectionModel createCollectionModel(
    CollectionModel current,
    Object value)
  {
    CollectionModel model = super.createCollectionModel(current, value); 


    getSelectedRowKeys().setCollectionModel(model);
    getDisclosedRowKeys().setCollectionModel(model);


    // If we were perviously sorted, restore the sort order:
    if (_sortCriteria != null)
    {
      model.setSortCriteria(_sortCriteria);
    }


    return model;
  }

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  private void _processStamps(
    FacesContext context,
    PhaseId phaseId)
  {
    // Process all the children
    CollectionModel tableData = getCollectionModel();
    if (tableData.getRowCount() != 0)
    {
      int startIndex = getFirst();
      int endIndex = isShowAll() ? getRowCount()-1 : TableUtils.getLast(this);


      UIComponent detail = getDetailStamp();

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   * @see CollectionModel#getRowData
   * @return null if the current row is unavailable
   */
  public final Object getRowData()
  {
    CollectionModel model = getCollectionModel();
    // we need to call isRowAvailable() here because the 1.0 sun RI was
    // throwing exceptions when getRowData() was called with rowIndex=-1
    return model.isRowAvailable() ? model.getRowData() : null;
  }

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   * @see CollectionModel#getRowData
   * @return null if the current row is unavailable
   */
  public final Object getRowData()
  {
    CollectionModel model = _getDataModel();
    // we need to call isRowAvailable() here because the 1.0 sun RI was
    // throwing exceptions when getRowData() was called with rowIndex=-1
    return model.isRowAvailable() ? model.getRowData() : null;
  }

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   * @see CollectionModel#getRowData(int)
   * @return null if the current row is unavailable
   */
  public final Object getRowData(int rowIndex)
  {
    CollectionModel model = _getDataModel();
    // we need to call isRowAvailable() here because the 1.0 sun RI was
    // throwing exceptions when getRowData() was called with rowIndex=-1
    return model.isRowAvailable(rowIndex) ? model.getRowData(rowIndex) : null;
  }

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org.apache.myfaces.trinidad.component.UIXIterator

org.apache.myfaces.trinidad.component.UIXIteratorTemplate

org.apache.myfaces.trinidad.component.UIXSelectRange

org.apache.myfaces.trinidad.component.UIXSelectRangeTemplate

org.apache.myfaces.trinidad.component.UIXTable

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org.apache.myfaces.trinidad.model.RowKeySetImplTest

org.jboss.seam.example.seamdiscs.test.DisplayArtistTest

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Examples of org.apache.myfaces.trinidad.model.CollectionModel

Row key support

Related Classes of org.apache.myfaces.trinidad.model.CollectionModel