<af:table value="#{bindings.DepartmentsVO1.collectionModel}" var="row"
                          rows="#{bindings.DepartmentsVO1.rangeSize}"
                          emptyText="#{bindings.DepartmentsVO1.viewable ? 'No data to display.' : 'Access Denied.'}"
                          rowBandingInterval="0"
                          selectedRowKeys="#{bindings.DepartmentsVO1.collectionModel.selectedRow}" rowSelection="single"
                          fetchSize="#{bindings.DepartmentsVO1.rangeSize}"
                          filterModel="#{bindings.DepartmentsVO1Query.queryDescriptor}"
                          queryListener="#{bindings.DepartmentsVO1Query.processQuery}" filterVisible="true"
                          varStatus="vs" id="t1" autoHeightRows="10" styleClass="AFStretchWidth"
                          contentDelivery="immediate"
                          selectionListener="#{viewScope.TableSelectionBean.tableSelectionListener}">
                    <af:column sortProperty="#{bindings.DepartmentsVO1.hints.DepartmentId.name}" filterable="true"
                               sortable="true" headerText="#{bindings.DepartmentsVO1.hints.DepartmentId.label}" id="c1">
                        <af:outputText value="#{row.DepartmentId}"
                                       shortDesc="#{bindings.DepartmentsVO1.hints.DepartmentId.tooltip}" id="ot1">
                            <af:convertNumber groupingUsed="false"
                                              pattern="#{bindings.DepartmentsVO1.hints.DepartmentId.format}"/>
                        </af:outputText>
                    </af:column>
                    <af:column sortProperty="#{bindings.DepartmentsVO1.hints.DepartmentName.name}" filterable="true"
                               sortable="true" headerText="#{bindings.DepartmentsVO1.hints.DepartmentName.label}"
                               id="c2">
                        <af:outputText value="#{row.DepartmentName}"
                                       shortDesc="#{bindings.DepartmentsVO1.hints.DepartmentName.tooltip}" id="ot2"/>
                    </af:column>
                    <af:column sortProperty="#{bindings.DepartmentsVO1.hints.ManagerId.name}" filterable="true"
                               sortable="true" headerText="#{bindings.DepartmentsVO1.hints.ManagerId.label}" id="c3">
                        <af:outputText value="#{row.ManagerId}"
                                       shortDesc="#{bindings.DepartmentsVO1.hints.ManagerId.tooltip}" id="ot3">
                            <af:convertNumber groupingUsed="false"
                                              pattern="#{bindings.DepartmentsVO1.hints.ManagerId.format}"/>
                        </af:outputText>
                    </af:column>
                    <af:column sortProperty="#{bindings.DepartmentsVO1.hints.LocationId.name}" filterable="true"
                               sortable="true" headerText="#{bindings.DepartmentsVO1.hints.LocationId.label}" id="c4">
                        <af:outputText value="#{row.LocationId}"
                                       shortDesc="#{bindings.DepartmentsVO1.hints.LocationId.tooltip}" id="ot4">
                            <af:convertNumber groupingUsed="false"
                                              pattern="#{bindings.DepartmentsVO1.hints.LocationId.format}"/>
                        </af:outputText>
                    </af:column>
                </af:table>

import javax.el.ELContext;
import javax.el.ExpressionFactory;
import javax.el.MethodExpression;
import javax.el.ValueExpression;

import javax.faces.application.FacesMessage;
import javax.faces.context.FacesContext;

import oracle.adf.view.rich.component.rich.data.RichTable;
import oracle.adf.view.rich.context.AdfFacesContext;

import oracle.jbo.Row;

import org.apache.myfaces.trinidad.event.SelectionEvent;
import org.apache.myfaces.trinidad.model.RowKeySet;

    /**
     * Programmatic invocation of a method that an EL evaluates to.
     * The method must not take any parameters.
     *
     * @param el EL of the method to invoke
     * @return Object that the method returns
     */
    public static Object invokeEL(String el) {
        return invokeEL(el, new Class[0], new Object[0]);
    }

/**
 * Programmatic invocation of a method that an EL evaluates to.
 *
 * @param el EL of the method to invoke
 * @param paramTypes Array of Class defining the types of the parameters
 * @param params Array of Object defining the values of the parametrs
 * @return Object that the method returns
 */
public static Object invokeEL(String el, Class[] paramTypes, Object[] params) {
FacesContext facesContext = FacesContext.getCurrentInstance();
ELContext elContext = facesContext.getELContext();
ExpressionFactory expressionFactory = facesContext.getApplication().getExpressionFactory();
MethodExpression exp = expressionFactory.createMethodExpression(elContext, el, Object.class, paramTypes);
return exp.invoke(elContext, params);
}

/**
 * Programmatic evaluation of EL.
 * @param el EL to evaluate
 * @return Result of the evaluation
 */
public static Object evaluateEL(String el) {
FacesContext facesContext = FacesContext.getCurrentInstance();
ELContext elContext = facesContext.getELContext();
ExpressionFactory expressionFactory = facesContext.getApplication().getExpressionFactory();
ValueExpression exp = expressionFactory.createValueExpression(elContext, el, Object.class);
return exp.getValue(elContext);
}

    /**Method to invoke custom selection listener
     * @param selectionEvent
     */
    public void tableSelectionListener(SelectionEvent selectionEvent) {
        //Get previous selected row key
        RowKeySet oldRowKey = selectionEvent.getRemovedSet();
        //Get Richtable instance fron selectionEvent
        RichTable table = (RichTable) selectionEvent.getSource();
        //Invoke this EL to make selected row as current
        invokeEL("#{bindings.DepartmentsVO1.collectionModel.makeCurrent}", new Class[] { SelectionEvent.class }, new Object[] {
                 selectionEvent });
        // Get the selected row , by this you can get any attribute of that row
        Row selectedRow = (Row) evaluateEL("#{bindings.DepartmentsVO1Iterator.currentRow}");
        System.out.println("Selected Deaprtment is- " + selectedRow.getAttribute("DepartmentName"));
        //Now check condition that Manager Id should not be null for newly selected row
        if (selectedRow.getAttribute("ManagerId") == null) {
            //If Manager Id is null then set focus on previously selected row and show a message to user
            table.setSelectedRowKeys(oldRowKey);
            //Refresh table
            AdfFacesContext.getCurrentInstance().addPartialTarget(table);
            //Show FacesMessage
            FacesContext fctx = FacesContext.getCurrentInstance();
            fctx.addMessage(null, new FacesMessage("Can't Select new row as Manager Id is null"));
            //Save and render response
            fctx.renderResponse();
        }
    }