get sorted data out of datatable

[steverar]

I have a rich:datatable with multiple columns and some are sortable. I'm using the sort ability in data table itself not sort routines in the backing bean.

It works fine.

User wants to print out the table data with the sort applied.

Using a debugger, I can see the sorted data (currentModel and rowKeys[]) but I can't get at it; no obvious method.  I've looked through UIComponent and UIDataTable.

For UIDataTable I tried using getDataModel but compiler returns "Error(208,22):  getDataModel() has protected access in org.ajax4jsf.component.SequenceDataAdaptor "

Any ideas how to do get the sorted data ?  If I can get at currentModel then use rowKeys[] to write the output I s/b OK.

Thanks ...

[steverar]

Essentially gave up.  Was able to see the sorted rowKeys in _modelMaps on the server side but could not access .

Got the source distribution and tried altering the source but maven had build errors and I didn't bother with trying to track that down.  Couldn't find a dependacy list.

Ended up having javascript go after the sorted table in the DOM ( form1:DataTableId:tb ) and passing that through h:inputHidden to the server side for processing.

[jbosscommunity13]

Is there not another way of getting the sorted keys in your hands?

Don't want to build JS to solve something that is already there on server side.

Anybody out there got an solution?

[ajanz]

take a look at

https://community.jboss.org/wiki/HowToGetFilteredDataFromTableToList

it helped me getting sorted data from extendeddatatable

[jbosscommunity13]

Hi Sascha,

I have found the same Link in the internet, but it explains ho to get FILTERED data, I need access to the SORTED data.

I did it by reflexion:

          UIExtendedDataTable edt = (UIExtendedDataTable)FacesContext.getCurrentInstance().getViewRoot().findComponent(componentId);
          if(edt != null) {
               int index0Based = edt.getFirst();
               
               Field privateExtendedDataModelField;
               try {
                    
                    privateExtendedDataModelField = UIDataAdaptor.class.getDeclaredField("extendedDataModel");
                    if(privateExtendedDataModelField != null) {
                         privateExtendedDataModelField.setAccessible(true);
                         
                         Object o = privateExtendedDataModelField.get(edt);
                         
                         /** SORTING */     
                         if(o instanceof org.richfaces.model.ArrangeableModel){
                              org.richfaces.model.ArrangeableModel model = (org.richfaces.model.ArrangeableModel)o;
                              if(model != null){
                                   Field rowKeysField = org.richfaces.model.ArrangeableModel.class.getDeclaredField("rowKeys");
                                   rowKeysField.setAccessible(true);
                                   
                                   List rowKeys = (List)rowKeysField.get(model);
                                   
                                   // SORTED LIST EXIST
                                   if(rowKeys != null && rowKeys.size() > 0){
[...]

its pretttttyyyyy ugly, but it works for now, for more elegant solutions, bring them up!

[jbosscommunity13]

how didi it help you?

[ajanz]

i changed to the ModifiableModel

wrote this simple function

publicList<Data> getSortedData(final ModifiableModel model) throws IOException {

finalList<Data> filteredData = new ArrayList<Data>();

model.walk(FacesContext.getCurrentInstance(),

new

DataVisitor() {

public void

process(FacesContext context, Object rowKey, Object argument) {

model.setRowKey((String)rowKey);

if ( model.getRowData()!= null

) {

filteredData.add((Data) model.getRowData());

}

}

},

new SequenceRange(0, -1), null

);

return filteredData;

}

In the bean where i needed  the sorted data

List<Data> hitlist = getSortedData( myBean.getDataModel());

sure, not that simple. i never would have found this out without the tips from link above