ExtendedDataTable problems

[cobar]

I have implemented the extendedDataTable using the demo as a guide. Inside a rich:tab

<h:panelGrid id="bGrp" styleClass="containers" style="#{nwtBean.bGroupStyle}"
             columns="2" columnClasses="top , top">
    <h:panelGroup id="selectionGrp" layout="block" style="width:200px;">
        <rich:panel id="ccActions" styleClass="center">
            <f:facet name="header">
                <h:outputText value="Actions"/>
            </f:facet>

.......           action buttons and stuff .................

        <rich:panel id="selectionPanel">
            <f:facet name="header">
                <h:outputText value=" Selections"/>
            </f:facet>
            <rich:dataTable id="brkMkSlcts" columnClasses="dataTableColumn"
                            value="#{nwtBean.selectedStuff}"
                            var="slct">

            </rich:dataTable>
        </rich:panel>
    </h:panelGroup>

    <rich:extendedDataTable id="bList"
                            value="#{nwtBean.extendedDataModel}"
                            binding="#{nwtBean.listTable}"
                            columnClasses="dataTableColumnSmall"
                            headerClass="dataTableHeader"
                            rowClasses="dataTableInnerEven, dataTableInnerOdd"
                            selectionMode="multi"
                            sortMode="single"
                            styleClass="dataTable"

                            style="overflow:auto"
                            width="880px"
                            var="brk">

        <rich:column id="brkCol-1" label="ID" sortable="true" sortBy="#{brk.id}">
            <f:facet name="header">
                <h:outputLabel value="ID"/>
            </f:facet>
            <h:outputText value="#{brk.id}"/>
        </rich:column>

.......

        <a4j:support reRender="brkMkSlcts" id="bListSlctSupport"
                action="#{nwtBean.takeSelection}"
                event="onselectionchange" />
    </rich:extendedDataTable>

Problems I am having:

1. I can not get the table to contain horizontal or verticle scroll bars.

2. The columns do not hold the width probably because the overflow is not working?

3. I don't understand how the extended data model is loaded with the capital list.

     public ExtendedTableDataModel<Capital> getCapitalsDataModel() {
          if (dataModel == null) {
               dataModel = new ExtendedTableDataModel<Capital>(new DataProvider<Capital>(){

                    private static final long serialVersionUID = 5054087821033164847L;

                    public Capital getItemByKey(Object key) {
                         for(Capital c : capitals){
                              if (key.equals(getKey(c))){
                                   return c;
                              }
                         }
                         return null;
                    }

                    public List<Capital> getItemsByRange(int firstRow, int endRow) {
                         return capitals.subList(firstRow, endRow);
                    }

                    public Object getKey(Capital item) {
                         return item.getName();
                    }

                    public int getRowCount() {
                         return capitals.size();
                    }
                    
               });
          }
          return dataModel;
     }

I see no reference to the capitals list being loaded from org.richfaces.demo.capitals.CapitalsBean (http://anonsvn.jboss.org/repos/richfaces/branches/community/3.3.X/samples/richfaces-demo/src/main/java/org/richfaces/demo/capitals/CapitalsBean.java) in the 
org.richfaces.demo.extendedDataTable.ExtendedTableBean (http://anonsvn.jboss.org/repos/richfaces/branches/community/3.3.X/samples/richfaces-demo/src/main/java/org/richfaces/demo/extendedDataTable/ExtendedTableBean.java)

So my version of the model renders no data. If I bind to the list directly then it renders column values?

[ufonaut]

> 3. I don't understand how the extended data model is loaded with the capital list.

The CapitalsBean constructor uses a http://commons.apache.org/digester/ to read an XML file.

Actually, the digester is based on two files - capitals.xml for the data, and capitals-rules.xml which describes how to map the data to the Capital object and what to do with it - in this case, call addCapital.

These two XML files don't have any path, so they're looked for in the class' (not the source) directory - WEB-INF\classes\org\richfaces\demo\capitals

Scroll bars are only displayed when required, so should appear when your table gets populated.

[ilya_shaikovsky]

Rob, thanks for your participation. You answers looks fully correct. One small addition - EDT does not supports horizontal scrollbar in 3.3.3. (But it will in 4.x)

And the last problem about sizes seems similar to http://community.jboss.org/message/532651#532651 with example attached so will check and update in the thread mentioned.

[cobar]

Thanks Rob. I was not clear in my question, I understand how the list is loaded from the xml files. What I don't understand is how the list is bound to the extended model. We are converting from Simplica to RichFaces so I was expecting something like taking my list of objects obtained from Oracle and set them in the Model m = new Model(list<object>) and rebind the model to the table table.setModel(m).

In my case when I bind to the object list (value="#{nwtBean.objList}")the table renders the object attributes. When I bind to the the model (value="#{nwtBean.listModel}") I get no data.

I just don't see how this is done from the code I can find or any tutorials.