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

Package org.apache.myfaces.trinidad.model

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

org.apache.myfaces.trinidad.model.RowKeySet
This Set is a mutable collection of rowKeys. This class is meant to be used with models that have a current rowKey concept. Therefore, the {@link #add()}, {@link #remove()} and {@link #isContained} methodsdo not need to take the rowKey as an argument, since the rowKey is implied. The implied key is obtained by calling {@link #getRowKey()}
Because this Set has a reference to the underlying model, operations like {@link #addAll()}, {@link #removeAll()} and {@link #invertAll()} mayexecute in constant time.
Note that the {@link #size()} method on the this Set might be expensive tocompute. Use the {@link #getSize()} method on this class for an inexpensive size. @author The Oracle ADF Faces Team

   * row when using a table with single selection.
   * @return null if there is nothing selected in the table.
   */
  public Object getSelectedRowData()
  {
    RowKeySet state = getSelectedRowKeys();
    Iterator<Object> keys = state.iterator();
    if (keys.hasNext())
    {
      Object key = keys.next();
      CollectionModel model = getCollectionModel();
      Object old = model.getRowKey();

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    CollectionModel current,
    Object value)
  {
    CollectionModel model = super.createCollectionModel(current, value);


    RowKeySet selectedRowKeys = getSelectedRowKeys();


    if (selectedRowKeys == null)
    {
      selectedRowKeys = new RowKeySetImpl();
      setSelectedRowKeys(selectedRowKeys);
    }


    RowKeySet disclosedRowKeys = getDisclosedRowKeys();


    if (disclosedRowKeys == null)
    {
      disclosedRowKeys = new RowKeySetImpl();
      setDisclosedRowKeys(disclosedRowKeys);
    }


    selectedRowKeys.setCollectionModel(model);
    disclosedRowKeys.setCollectionModel(model);


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

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    {
      int startIndex = getFirst();
      int endIndex = isShowAll() ? getRowCount()-1 : TableUtils.getLast(this);


      UIComponent detail = getDetailStamp();
      RowKeySet disclosureState =
        (detail == null) ? null : getDisclosedRowKeys();


      for (int i = startIndex; i <= endIndex; i++)
      {
        setRowIndex(i);
        TableUtils.__processStampedChildren(context, this, phaseId);


        if ((disclosureState != null) && disclosureState.isContained())
        {
          assert getRowIndex() == i;
          processComponent(context, detail, phaseId);
        }
      }

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          // is not asked for which would create an infinite loop
          _retrievingDisclosedRows = true;


          try
          {
            RowKeySet rowKeys = (RowKeySet) value;
            // row key sets need the most recent collection model, but there is no one common entry
            // point to set this on the set besides when code asks for the value from the bean
            rowKeys.setCollectionModel(getCollectionModel());
          }
          finally
          {
            _retrievingDisclosedRows = false;
          }
        }
      }
      else if (key == SELECTED_ROW_KEYS_KEY)
      {
        if (!_retrievingSelectedRows && value instanceof RowKeySet)
        {
          // Ensure that when we are retrieving and setting the collection model, this property
          // is not asked for which would create an infinite loop
          _retrievingSelectedRows = true;


          try
          {
            RowKeySet rowKeys = (RowKeySet) value;
            // row key sets need the most recent collection model, but there is no one common entry
            // point to set this on the set besides when code asks for the value from the bean
            rowKeys.setCollectionModel(getCollectionModel());
          }
          finally
          {
            _retrievingSelectedRows = false;
          }

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    }


    @Override
    public Object saveState(FacesContext context)
    {
      RowKeySet rowKeys = (RowKeySet)super.getProperty(DISCLOSED_ROW_KEYS_KEY);
      if (rowKeys != null)
      {
        // make sure the set does not pin the model in memory
        rowKeys.setCollectionModel(null);
      }
      rowKeys = (RowKeySet)super.getProperty(SELECTED_ROW_KEYS_KEY);
      if (rowKeys != null)
      {
        // make sure the set does not pin the model in memory
        rowKeys.setCollectionModel(null);
      }
      return super.saveState(context);
    }

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          // is not asked for which would create an infinite loop
          _retrievingDisclosedRows = true;


          try
          {
            RowKeySet rowKeys = (RowKeySet) value;
            // row key sets need the most recent collection model, but there is no one common entry
            // point to set this on the set besides when code asks for the value from the bean
            rowKeys.setCollectionModel(getCollectionModel());
          }
          finally
          {
            _retrievingDisclosedRows = false;
          }
        }
      }
      else if (key == SELECTED_ROW_KEYS_KEY)
      {
        if (!_retrievingSelectedRows && value instanceof RowKeySet)
        {
          // Ensure that when we are retrieving and setting the collection model, this property
          // is not asked for which would create an infinite loop
          _retrievingSelectedRows = true;


          try
          {
            RowKeySet rowKeys = (RowKeySet) value;
            // row key sets need the most recent collection model, but there is no one common entry
            // point to set this on the set besides when code asks for the value from the bean
            rowKeys.setCollectionModel(getCollectionModel());
          }
          finally
          {
            _retrievingSelectedRows = false;
          }

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    }


    @Override
    public Object saveState(FacesContext context)
    {
      RowKeySet rowKeys = (RowKeySet)super.getProperty(DISCLOSED_ROW_KEYS_KEY);
      if (rowKeys != null)
      {
        // make sure the set does not pin the model in memory
        rowKeys.setCollectionModel(null);
      }
      rowKeys = (RowKeySet)super.getProperty(SELECTED_ROW_KEYS_KEY);
      if (rowKeys != null)
      {
        // make sure the set does not pin the model in memory
        rowKeys.setCollectionModel(null);
      }
      return super.saveState(context);
    }

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  @Override
  @SuppressWarnings("unchecked")
  public CollectionModel createCollectionModel(CollectionModel current, Object value)
  {
    TreeModel model = (TreeModel)super.createCollectionModel(current, value);
    RowKeySet treeState = getDisclosedRowKeys();
    treeState.setCollectionModel(model);
    return model;
  }

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        // is not asked for which would create an infinite loop
        _retrievingDisclosedRows = true;


        try
        {
          RowKeySet rowKeys = (RowKeySet) value;
          // row key sets need the most recent collection model, but there is no one common entry
          // point to set this on the set besides when code asks for the value from the bean
          rowKeys.setCollectionModel(getCollectionModel());
        }
        finally
        {
          _retrievingDisclosedRows = false;
        }

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    }


    @Override
    public Object saveState(FacesContext context)
    {
      RowKeySet rowKeys = (RowKeySet)super.getProperty(DISCLOSED_ROW_KEYS_KEY);
      if (rowKeys != null)
      {
        // make sure the set does not pin the model in memory
        rowKeys.setCollectionModel(null);
      }
      return super.saveState(context);
    }

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