[jboss-user] [JBoss Seam] - IllegalArgumentException when pre-loading SFSB instance vari
asookazian
do-not-reply at jboss.com
Tue Sep 11 11:22:11 EDT 2007
Seam 1.2.1.GA
JBoss 4.0.5.GA
ICEfaces-1.6.1
I have incorporated my files below (including SFSB local interface) in the Seam icefaces example project. Trying to get the dynamic data table based on sproc to render properly. Richfaces apparently doesn't support this functionality but there is a Tomahawk <t:columns> tag we may try. Also, is it true that you can not use Richfaces and ICEfaces in the same project? If not, is it possible to use Richfaces and Tomahawk in the same project?
getting the following exception when JSF is rendered after pages.xml config is causing the pre-loading of the choices List in SFSB. Seems that the instance variable is possibly getting set to null after it's loaded properly in the SFSB. Session-scoped SFSB, so the instance variable should be available (ie. loaded, not null) in the JSF when <f:selectItems value="#{columnsBean.choices}"/> is processed.
08:08:32,853 ERROR [[Blocking Servlet]] Servlet.service() for servlet Blocking Servlet threw exception
| java.lang.IllegalArgumentException: Value binding '#{columnsBean.choices}'of UISelectItems with component-path {Component-Path : [Class: javax.faces.component.UIViewRoot,ViewId: /testDatatable.xhtml][Class: com.icesoft.faces.component.UIXhtmlComponent,Id: _id1][Class: com.icesoft.faces.component.UIXhtmlComponent,Id: _id7][Class: com.icesoft.faces.component.UIXhtmlComponent,Id: document][Class: com.icesoft.faces.component.UIXhtmlComponent,Id: container][Class: com.icesoft.faces.component.UIXhtmlComponent,Id: content][Class: com.icesoft.faces.component.UIXhtmlComponent,Id: _id15][Class: javax.faces.component.html.HtmlForm,Id: _id16][Class: javax.faces.component.html.HtmlPanelGrid,Id: roles_grid][Class: javax.faces.component.html.HtmlPanelGrid,Id: select_grid][Class: javax.faces.component.html.HtmlSelectManyCheckbox,Id: allRoles][Class: javax.faces.component.UISelectItems,Id: _id23]} does not reference an Object of type SelectItem, SelectItem[], Collection or Map but of typ!
e : null
pages.xml:
<!DOCTYPE pages PUBLIC
| "-//JBoss/Seam Pages Configuration DTD 1.2//EN"
| "http://jboss.com/products/seam/pages-1.2.dtd">
|
| <pages>
| <page view-id="/hotel.xhtml">View hotel: #{hotel.name}</page>
| <page view-id="/book.xhtml">Book hotel: #{hotel.name}</page>
| <page view-id="/confirm.xhtml">Confirm: #{booking.description}</page>
| <page view-id="/testDatatable.xhtml">
| <action execute="#{columnsBean.getSeedSelection}"/>
| </page>
| </pages>
testDatatable.xhtml:
<!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
| <ui:composition xmlns="http://www.w3.org/1999/xhtml"
| xmlns:ui="http://java.sun.com/jsf/facelets"
| xmlns:h="http://java.sun.com/jsf/html"
| xmlns:f="http://java.sun.com/jsf/core"
| xmlns:s="http://jboss.com/products/seam/taglib"
| xmlns:ice="http://www.icesoft.com/icefaces/component"
| template="template.xhtml">
|
| <!-- content -->
| <ui:define name="content">
|
|
|
|
| <div class="section">
|
|
|
|
| <h:form>
|
| <h:panelGrid id="roles_grid" columns="1">
| <h1><h:outputText id="userRoleInfo" value="Filter by Role(s)"/></h1><br/>
|
|
| <h:selectBooleanCheckbox/>
| <b><h:outputText id="labelViewAll" value="View All"/></b>
| <br/><br/>
|
| <h:panelGrid id="select_grid" columns="1">
| <h:selectManyCheckbox id="allRoles"
| value="#{columnsBean.selectedChoices}"
| layout="pageDirection">
| <f:selectItems value="#{columnsBean.choices}"/>
| </h:selectManyCheckbox>
|
| </h:panelGrid>
|
| <h:commandButton id="searchButton" value="Run" action="#{columnsBean.viewRoles}">
| <ui:debug />
| </h:commandButton>
| <br/>
|
| <ice:dataTable id="dataTbl" var="item" value="#{columnsBean.rowDataModel}"
| columnClasses="columnsColumn"
| rows="#{columnsBean.rows}">
|
| <ice:columns id="columnDataModel" value="#{columnsBean.columnDataModel}"
| var="column">
| <f:facet name="header">
| <ice:panelGroup >
| <ice:outputText id="rowData" value="#{columnsBean.columnDataModel.rowData}"/>
| </ice:panelGroup>
| </f:facet>
|
| <ice:panelGroup style="text-align: center; white-space: nowrap;" >
| <ice:outputText id="cellValue"
| value="#{columnsBean.cellValue}"/>
|
| </ice:panelGroup>
|
| </ice:columns>
|
| </ice:dataTable>
|
| </h:panelGrid>
|
| </h:form>
| </div>
|
|
|
| </ui:define>
|
|
|
| </ui:composition>
ColumnsBean:
package org.jboss.seam.example.booking;
|
| import java.sql.CallableStatement;
| import java.sql.Connection;
| import java.sql.DriverManager;
| import java.sql.ResultSet;
| import java.sql.ResultSetMetaData;
| import java.sql.SQLException;
| import java.util.ArrayList;
| import java.util.List;
|
| import javax.ejb.Remove;
| import javax.ejb.Stateful;
| import javax.faces.model.DataModel;
| import javax.faces.model.ListDataModel;
| import javax.faces.model.SelectItem;
|
| import org.apache.log4j.Logger;
| import org.jboss.seam.annotations.Destroy;
| import org.jboss.seam.annotations.Name;
| import org.jboss.seam.annotations.Scope;
| import org.jboss.seam.ScopeType;
|
| @Stateful
| @Scope(ScopeType.SESSION)
| @Name("columnsBean")
| public class ColumnsBean implements ColumnsBeanLocal {
|
| Logger log = Logger.getLogger(this.getClass());
|
| private ResultSet rs = null;
| private CallableStatement cstmt = null;
| private Connection con = null;
|
| private final String url = "jdbc:sqlserver://CORG0DV02:3220;databaseName=boBETS";
|
| private final String username = "_AppUser_JavaTestAcct";
| private final String password = "JavaTestAcct";
|
| // row columna data map
| private DataModel columnDataModel;
| private DataModel rowDataModel;
|
| // default column and row values
| private int columns = 0;
| private int rows = 0;
|
| //2D array to save the table values to.
| private String table[][];
|
| /*
| * Contains the results of the choices the user made on the selectManyCheckbox
| * Gets seeded with default values in @see populate()
| */
| String[] selectedChoices;
|
| List<SelectItem> choices;
|
| /*
| * use this to decide when to show the commandButton, selectManyCheckbox, selectOneMenu
| */
| String alreadyPopulated;
|
| public ColumnsBean() {
|
| // calulate rows
| //calculateRows();
|
| //updateTableColumns(null);
| }
|
| /**
| * Seed the initial choices as well as those items user can select from
| */
| private void populate() {
|
| log.info("in populate()");
|
| try {
|
|
| Connection con = DriverManager.getConnection(url, username, password);
|
| cstmt = con.prepareCall("{call usp_u_adm_select_Role}");
| rs = cstmt.executeQuery();
|
|
| choices = new ArrayList<SelectItem>();
| while(rs.next()) {
| choices.add(new SelectItem(rs.getString("ApplicationRoleID"), rs.getString("Name")));
|
| String name = rs.getString("Name");
| log.info("populate(): name = " + name);
|
| String applicationRoleID = rs.getString("ApplicationRoleID");
| log.info("populate(): applicationRoleID = " + applicationRoleID);
|
| }
| alreadyPopulated = "a value indicating we are populated";
|
| }
| catch(Exception e) {
| e.printStackTrace();
| }
| finally {
| this.cleanUp();
| }
|
|
| }
|
| public void getSeedSelection() {
| log.info("in getSeedSelection()");
| populate();
|
| }
|
|
| public String getCellValue() {
| log.info("in getCellValue()");
|
| if (rowDataModel.isRowAvailable() &&
| columnDataModel.isRowAvailable()) {
|
| // get the index of the row and column that this method is being
| // called for
| int row = rowDataModel.getRowIndex();
| int col = columnDataModel.getRowIndex();
|
| //return the element at the specified column and row
| return table[col][row];
| }
| // empty field.
| return "-";
| }
|
|
| public DataModel getColumnDataModel() {
| log.info("in getColumnDataModel()");
|
| return columnDataModel;
| }
|
| public int getColumns() {
| log.info("in getColumns()");
|
| return columns;
| }
|
| public DataModel getRowDataModel() {
| log.info("in getRowDataModel()");
|
| return rowDataModel;
| }
|
| public int getRows() {
| log.info("in getRows()");
|
| return rows;
| }
|
| public void setColumns(int columns) {
| log.info("in setColumns()");
|
| this.columns = columns;
| }
|
|
| //public void updateTableColumns(ValueChangeEvent event) {
| public void loadDataModels() {
| log.info("in updateTableColumns()");
|
|
| }
|
| public void viewRoles() {
|
| log.info("viewRoles: step 0");
| viewRolesData(selectedChoices);
| log.info("viewRoles: step 1");
| //displayViewRolesDataTable = true;
|
| }
|
| private void viewRolesData(String[] selectedChoices) {
|
| log.info("begin viewRolesData()");
|
| try {
| //using existing stored proc for now; build XML string to pass as param to sproc
|
| String appRoleIDString = "";
|
| for(String myChoices : selectedChoices) {
| appRoleIDString += "<ApplicationRole ApplicationRoleID=\""+myChoices+"\" />";
| }
|
| log.info("appRoleIDString = " + appRoleIDString);
|
| String xmlParam = "<?xml version=\"1.0\" standalone=\"yes\"?><root>" + appRoleIDString + "</root>";
|
| log.info("in viewRoles: xmlParam = " + xmlParam);
|
| con = DriverManager.getConnection(url, username, password);
|
| cstmt = con.prepareCall("{call usp_u_adm_select_ViewUserRole(?)}");
| cstmt.setString(1, xmlParam);
|
| //NOTE: need to figure out how to get scrollable resultset to work...
| ResultSet rsCopy = cstmt.executeQuery();
| ResultSetMetaData rsmd = rsCopy.getMetaData();
|
| // get columncount of resultset
| int numberOfColumns = rsmd.getColumnCount();
| log.info("numberOfColumns: "+numberOfColumns);
|
| int numberOfRows = 0;
|
| while (rsCopy.next()) {
| numberOfRows++;
| }
|
| rs = cstmt.executeQuery();
|
|
| log.info("numberOfRows: "+numberOfRows);
|
|
| ArrayList<String> columnList = new ArrayList<String>();
| ArrayList<String> rowList = new ArrayList<String>();
| table = new String[numberOfColumns][numberOfRows];
|
| //find the column names of the resultset
| log.info("columnNames are:");
| for (int i = 1; i <= numberOfColumns; i++) {
| table[i-1][0] = rsmd.getColumnName(i);
| log.info(table[i-1][0]);
| columnList.add(rsmd.getColumnName(i));
|
| }
|
| //test
| for(int i = 0; i < columnList.size(); i++) {
| log.info("columnList["+i+"] = " + columnList.get(i));
| }
| //end test
|
| String cellData;
| int j=1;
|
| while(rs.next() && j <= numberOfRows) {
| for( int i=1; i <= numberOfColumns; i++ ){
|
| cellData = rs.getString(i);
|
| table[i-1][j-1] = cellData;
|
| rowList.add(cellData);
| }
| j++;
| }
|
| // test
| for(int i = 0; i < rowList.size(); i++) {
| log.info("rowList["+i+"] = " + rowList.get(i));
| }
| //end test
|
| rowDataModel = new ListDataModel(rowList);
| columnDataModel = new ListDataModel(columnList);
|
|
|
| if (rsCopy != null) rsCopy.close();
| }
| catch(Exception e) {
| e.printStackTrace();
| }
| finally {
| this.cleanUp();
|
| }
|
| }
|
| public List<SelectItem> getChoices() {
| log.info("Retrieving all possible selections");
| return choices;
| }
|
| public String[] getSelectedChoices() {
| log.info("Retrieving the default selections, String[]");
| return selectedChoices;
| }
|
| public void setSelectedChoices(String[] selected) {
| log.info("Setting the new selections, String[]");
| this.selectedChoices = selected;
| }
|
| private void cleanUp() {
| try {
| if (rs != null) rs.close();
| if (cstmt != null) cstmt.close();
| if (con != null) con.close();
| }
| catch(SQLException e) {
| e.printStackTrace();
| }
| }
|
| @Destroy @Remove
| public void destroy() {
| log.info("in destroy()");
| }
|
| }
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