How to get the rendered rows of a dataTable?

[rubenlp]

Hi.

I have a table (ExtendedDataTable with ExtendedTableDataModel as dataModel) in wich the user can sort columns and filter the rows, the table is also paginated (DataScroller). For example:

{code}

<rich:extendedDataTable

  value="#{dataModel}"

  var="_entity"

  rows="50" ... >

  <rich:column

    sortable="true"

    sortBy="#{_entity.code}"

    filterBy="#{_entity.code}"

    filterEvent="onkeyup">

    <h:outputText value="#{_entity.code}" />

                    </rich:column>

  ...

  <f:facet name="footer">

    <rich:datascroller id="ds" />

  </f:facet>

</rich:extendedDataTable>

{code}

My question is, How can I get the rendered data after filtering and sorting?

I'm using RichFaces 3.3. Thanks in advance.

[mcmurdosound]

instead of value="#{datamodel}" being somekind of List<?>, you have to use an ExtendedTableDataModel (I'm not quite sure what the correct name was) or a ModifyableDataModel. After clientside filtering you can retrieve the actual visible rows (including pagination).

from: http://community.jboss.org/wiki/HowToGetFilteredDataFromTableToList :

public ModifiableModel getDataModel() {
     if (this.DataModel == null) {
          ExtendedTableDataModel<MyDataObj> model = new ExtendedTableDataModel<MyDataObj>(new DataProvider<MyDataObj>() {
               private static final long serialVersionUID = 5054087821033164847L;

               public MyDataObj getItemByKey(Object key) {
                    for (MyDataObj c : MyManagedBean.this.data) {
                         if (key.equals(getKey(c))) {
                              return c;
                         }
                    }
                    return null;
               }

               public List<MyDataObj> getItemsByRange(int firstRow, int endRow) {
                    return MyManagedBean.this.data.subList(firstRow, endRow);
               }

               public Object getKey(MyDataObj item) {
                    return item.getId();
               }

               public int getRowCount() {
                    return MyManagedBean.this.data.size();
               }
          });

          this.dataModel = new ModifiableModel(model, "row");
     }

     return this.dataModel;
}

public List<MyDataObj> getFilteredData() throws IOException {
          final List<MyDataObj> filteredData = new ArrayList<MyDataObj>();
          final ModifiableModel model = getDataModel();

          getDataModel().walk(FacesContext.getCurrentInstance(), new DataVisitor() {
                    public void process(FacesContext context, Object rowKey, Object argument) {
                              model.setRowIndex((Integer)rowKey);
                              filteredData.add((MyDataObj) model.getRowData());
                    }
          }, new SequenceRange(0, -1), null);

          return filteredData;
}



http://opensourcejavaphp.net/java/jbossportletbridge/org/richfaces/demo/extendedDataTable/ExtendedTableBean.java.html

http://docs.jboss.org/richfaces/3.3.X/3.3.2.GA/en/apidoc_impl/org/richfaces/model/ExtendedTableDataModel.html

[rubenlp]

Thanks!!

That was waht I was looking for. Next time I will check out the knowledge base before asking

Saludos.

[rubenlp]

Finally I used an ExtendedTableDataModifiableModel<T> instead of a ModifiableModel to make row selection work correctly on the ExtendedDataTable.

Thanks again.