Ajax4jsf and dataTable question| JBoss.org Content Archive (Read Only)

15. Re: Ajax4jsf and dataTable question

sergeysmirnov Apr 5, 2007 3:19 PM (in response to kristein)

it depends of how you organize your data model. When the data comes from the page and validation is Ok, the corresponded setters will be invoked.

16. Re: Ajax4jsf and dataTable question

kristein Apr 5, 2007 3:52 PM (in response to kristein)

Thanks for reply,

It will be great if you could explain briefly with a small piece of code
Please...

thanks and regards
Kristien

17. Re: Ajax4jsf and dataTable question

kristein Apr 5, 2007 7:19 PM (in response to kristein)

Hi SergeySmirnov,

Please can you post the source code for the example, example10.jsf and
Salesreport.java. I have few problems testing the example10.jsf.

thanks and regards
Kristein

18. Re: Ajax4jsf and dataTable question

sergeysmirnov Apr 5, 2007 8:39 PM (in response to kristein)

I am going to commit this example to svn tomorrow.

Those are the beans:

package org.rf.datatable;

import java.util.ArrayList;
import java.util.List;

public class SalesReport {
 List items = null;

 public List getItems() {
 if (items == null)
 initData();
 return items;
 }

 public void setItems(List items) {
 this.items = items;
 }

 private void initData() {
 items = new ArrayList();
 items.add(new SalesItem(1, 20.00));
 items.add(new SalesItem(2, 10.00));
 items.add(new SalesItem(3, 20.00));
 items.add(new SalesItem(4, 20.00));
 }
}

package org.rf.datatable;

public class SalesItem {
 private int productCode;
 private double proposedPrice;
 private double ProposedGrossMargin;
 private double salesCost;
 public SalesItem(int productCode, double salesCost) {
 super();
 this.productCode = productCode;
 this.salesCost = salesCost;
 }
 public int getProductCode() {
 return productCode;
 }
 public void setProductCode(int productCode) {
 this.productCode = productCode;
 }
 public double getProposedGrossMargin() {
 if (proposedPrice == 0)
 return 0;
 else {
 return (proposedPrice-salesCost)/proposedPrice ;
 }
 }
 public void setProposedGrossMargin(double proposedGrossMargin) {
 ProposedGrossMargin = proposedGrossMargin;
 }
 public double getProposedPrice() {
 return proposedPrice;
 }
 public void setProposedPrice(double proposedPrice) {
 this.proposedPrice = proposedPrice;
 }
 public double getSalesCost() {
 return salesCost;
 }
 public void setSalesCost(double salesCost) {
 this.salesCost = salesCost;
 }
}

19. Re: Ajax4jsf and dataTable question

kristein Apr 10, 2007 2:54 PM (in response to kristein)

Hi SergeySmirnov,

Your example is working fine.But when I am trying to implement the same logic in my application using the dao's,I am getting the exception.

Here's the exception:

java.lang.IllegalArgumentException: java.lang.ClassCastException@2fb3 java.lang.IllegalArgumentException: java.lang.ClassCastException@2fc6 java.lang.IllegalArgumentException: type mismatch java.lang.IllegalArgumentException: type mismatch java.lang.IllegalArgumentException: type mismatch java.lang.IllegalArgumentException: type mismatch java.lang.IllegalArgumentException: java.lang.ClassCastException@2fcd java.lang.IllegalArgumentException: java.lang.ClassCastException@2fce java.lang.IllegalArgumentException: type mismatch java.lang.IllegalArgumentException: java.lang.ClassCastException@2fcc java.lang.IllegalArgumentException: java.lang.ClassCastException@2fca java.lang.IllegalArgumentException: java.lang.ClassCastException@2fb8 java.lang.IllegalArgumentException: type mismatch java.lang.IllegalArgumentException: java.lang.ClassCastException@2fd2 java.lang.IllegalArgumentException: type mismatch

Could you please tell where I am going wrong!

20. Re: Ajax4jsf and dataTable question

sergeysmirnov Apr 10, 2007 3:01 PM (in response to kristein)

Can say nothing yet base on the info you provided

21. Re: Ajax4jsf and dataTable question

kristein Apr 10, 2007 3:37 PM (in response to kristein)

ok,here are the code pieces.

jsp page

<!-- Spreadsheet panel -->
<h:panelGrid columns="1" rendered="#{!PriceModelHeaderBean.tableEmpty}" styleClass="layoutTable">
<rich:dataTable value="#{PriceModelHeaderBean.listDataModel}" var="item"
 first="#{PriceModelHeaderBean.currentRowIndex}"
 rows="#{PriceModelHeaderBean.rowsPerPage}"
 styleClass="partDataTable" rowClasses="rowLight, rowDark" headerClass="dataHeader"
 border="0" cellspacing="0">
<f:facet name="header">
 <h:panelGrid columns="2" columnClasses="lAlign, rAlign" styleClass="pagerTable">
 <h:panelGrid columns="5">
 <h:commandButton action="#{PriceModelHeaderBean.pageFirst}"
 disabled="#{PriceModelHeaderBean.pageFirstDisabled}"
 styleClass="xSmallButton"
 value="|<<"/>
 <h:commandButton action="#{PriceModelHeaderBean.pagePrev}"
 disabled="#{PriceModelHeaderBean.pagePrevDisabled}"
 styleClass="xSmallButton"
 value="<<"/>
 <h:commandButton action="#{PriceModelHeaderBean.pageNext}"
 disabled="#{PriceModelHeaderBean.pageNextDisabled}"
 styleClass="xSmallButton"
 value=">>"/>
 <h:commandButton action="#{PriceModelHeaderBean.pageLast}"
 disabled="#{PriceModelHeaderBean.pageLastDisabled}"
 styleClass="xSmallButton"
 value=">>|"/>
 <h:outputText value="#{PriceModelHeaderBean.caption}" escape="false"/>
 </h:panelGrid>
 <!-- Start Table headers / Right side paging size -->
 <h:panelGrid columns="2">
 <h:outputLabel value="Rows/page:"/>

 <h:selectOneMenu value="#{PriceModelHeaderBean.rowsPerPageValue}"
 valueChangeListener="#{PriceModelHeaderBean.applyRowsPerPageValue}"
 onchange="this.form.submit();">
 <f:selectItems value="#{RowSelectionMap}"/>
 </h:selectOneMenu>
 </h:panelGrid>
 </h:panelGrid>
 </f:facet>

<!-- Table Column defs, which include column header and sort indicator, then method for data fill -->


 <h:column>
 <f:facet name="header">
 <h:commandLink action="#{PriceModelHeaderBean.sort}"
 actionListener="#{PriceModelHeaderBean.bindSortColumn}"
 value="Prod Code" immediate="false">
 <f:attribute name="sortColumn" value="dto.productCode"/>
 </h:commandLink>
 </f:facet>
 <h:outputText value="#{item.dto.productCode}"/>
 </h:column>

 <h:column>
 <f:facet name="header">
 <h:commandLink action="#{PriceModelHeaderBean.sort}"
 actionListener="#{PriceModelHeaderBean.bindSortColumn}"
 value="Proposed Price" immediate="false">
 <f:attribute name="sortColumn" value="dto.proposedPrice"/>
 </h:commandLink>
 </f:facet>
 <h:inputText id="price" value="#{item.dto.proposedPrice}"> <!-- TODO: Gotta make this editable -->
 <a4j:support event="onchange" reRender="margin" />
 <h:message for="price" />
 </h:inputText>
 </h:column>

 <h:column>
 <f:facet name="header">
 <h:commandLink action="#{PriceModelHeaderBean.sort}"
 actionListener="#{PriceModelHeaderBean.bindSortColumn}"
 value="Proposed GM%" immediate="false">
 <f:attribute name="sortColumn" value="dto.proposedGrossMargin"/>
 </h:commandLink>
 </f:facet>
 <h:inputText id="margin" value="#{item.dto.proposedGrossMargin}">
 <f:convertNumber pattern="$###0.000"/>
 <h:message for="margin" />
 </h:inputText>
 </h:column>



 <h:column>
 <f:facet name="header">
 <h:commandLink action="#{PriceModelHeaderBean.sort}"
 actionListener="#{PriceModelHeaderBean.bindSortColumn}"
 value="Sales Cost" immediate="false">
 <f:attribute name="sortColumn" value="dto.salesCost"/>
 </h:commandLink>
 </f:facet>
 <h:outputText value="#{item.dto.salesCost}"/>
 </h:column>

 </rich:dataTable>
 <a4j:outputPanel id="err" ajaxRendered="true">
 <h:messages />
</a4j:outputPanel>
</h:panelGrid>

----------------------------------------------------------------------------------
Here is PriceModelHeaderBean

/**
 * Return the proposed price for this Spreadsheet as a <tt>BigDecimal</tt>.
 * @return - <tt>BigDecimal</tt> - proposed price.
 */
 public BigDecimal getProposedPrice()
 {
 return getProposedPriceAt(PricingModel.ZERO);
 }

 /**
 * Set the proposed price for this Spreadsheet. This will update all <tt>PricingModel</tt>s
 * with the new price
 * @param newPrice - a <tt>BigDecimal</tt>, the proposed price.
 */
 public void setProposedPrice(BigDecimal newPrice)
 {
 this.updating(proposedPrice, newPrice);
 this.proposedPrice = newPrice;
 for (Iterator i = pricingModels.values().iterator(); i.hasNext();)
 {
 PricingModel pm = (PricingModel)i.next();
 pm.setProposedPrice(newPrice);
 }
 }

 /**
 * Return the gross margin for the proposed price of the Spreadsheet
 * as a <tt>BigDecimal</tt>.
 * @return - a <tt>BigDecimal</tt> - the gross margin at the proposed price.
 */
 public BigDecimal getProposedGrossMargin()
 {
 return getProposedGrossMarginAt(PricingModel.ZERO);
 }

 /**
 * Set the proposed price for this Spreadsheet by setting it's gross margin.
 * This will update all <tt>PricingModel</tt>s with the new price/gm
 * @param proposedGM - a <tt>BigDecimal</tt>, the proposed gross margin.
 */
 public void setProposedGrossMargin(BigDecimal proposedGM)
 {
 for (Iterator i = pricingModels.values().iterator(); i.hasNext();)
 {
 PricingModel pm = (PricingModel)i.next();
 pm.setProposedGrossMargin(proposedGM);
 }
 // Now update the actual price from the pricingModel...
 this.updating(proposedPrice, this.getProposedPrice());
 this.proposedPrice = this.getProposedPrice();
 }

 public void setSalesCost(BigDecimal salesCost)
 {
 this.salesCost = salesCost.setScale(2, RoundingMode.HALF_UP);
 }

 public BigDecimal getSalesCost()
 {
 return salesCost;
 }

---------------------------------------------------------------------------
PriceingModelBean

public void setProposedGrossMargin(BigDecimal proposedGM)
 {
 BigDecimal newProposedPrice = cost.divide(ONE.subtract(proposedGM.movePointLeft(2)), 2, RoundingMode.HALF_UP);
 this.setProposedPrice(newProposedPrice);
 }

 public BigDecimal getProposedGrossMargin()
 {
 if (cost == null || proposedPrice == null) return HUNDRED.negate();
 if (proposedPrice.compareTo(ZERO) == 0) return ZERO;
 BigDecimal gm;
 if (isListModel())
 {
 gm = proposedPrice.subtract(cost).divide(proposedPrice, 6, RoundingMode.HALF_UP);
 }
 else
 {
 gm = getProposedDiscountPrice().subtract(cost).divide(getProposedDiscountPrice(), 6, RoundingMode.HALF_UP);
 }
 return gm.movePointRight(2).setScale(2, RoundingMode.HALF_UP);
 }
 public void setProposedPrice(BigDecimal proposedPrice)
 {
 if (proposedPrice == null) return;
 this.proposedPrice = proposedPrice.setScale(2,RoundingMode.HALF_UP);
 }

 public BigDecimal getProposedPrice()
 {
 return proposedPrice;
 }

could you please tell me where I am going wrong!

22. Re: Ajax4jsf and dataTable question

sergeysmirnov Apr 10, 2007 3:59 PM (in response to kristein)

Do you have information where and when the ClassCast exception occurs?

23. Re: Ajax4jsf and dataTable question

kristein Apr 10, 2007 4:11 PM (in response to kristein)

Thanks for replying,

I am getting this exception when I am changing the ProposedPrice text field value, on loosing the focus of the text field, nothing is changed in the ProposedGrossMargin field.

24. Re: Ajax4jsf and dataTable question

sergeysmirnov Apr 10, 2007 5:08 PM (in response to kristein)

Do you have an exception stack trace ?

25. Re: Ajax4jsf and dataTable question

kristein Apr 10, 2007 5:37 PM (in response to kristein)

here is the exception stack trace

07/04/10 16:34:17 BEFORE RESTORE_VIEW 1
07/04/10 16:34:17 AFTER RESTORE_VIEW 1
07/04/10 16:34:17 BEFORE APPLY_REQUEST_VALUES 2
07/04/10 16:34:17 AFTER APPLY_REQUEST_VALUES 2
07/04/10 16:34:17 BEFORE PROCESS_VALIDATIONS 3
ERROR ProcessValidationsPhase 2007-04-10 16:34:18,312 java.lang.NumberFormatException: null
javax.faces.el.EvaluationException: java.lang.NumberFormatException: null
 at com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:130)
 at javax.faces.component.UIInput.broadcast(UIInput.java:492)
 at org.ajax4jsf.ajax.repeat.UIDataAdaptor.broadcast(UIDataAdaptor.java:1056)
 at org.ajax4jsf.framework.ajax.AjaxViewRoot.processEvents(AjaxViewRoot.java:180)
 at org.ajax4jsf.framework.ajax.AjaxViewRoot.broadcastEvents(AjaxViewRoot.java:156)
 at org.ajax4jsf.framework.ajax.JsfOneOneInvoker.invokeOnRegionOrRoot(JsfOneOneInvoker.java:62)
 at org.ajax4jsf.framework.ajax.AjaxContext.invokeOnRegionOrRoot(AjaxContext.java:176)
 at org.ajax4jsf.framework.ajax.AjaxViewRoot.processValidators(AjaxViewRoot.java:315)
 at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:78)
 at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
 at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:90)
 at javax.faces.webapp.FacesServlet.service(FacesServlet.java:197)
 at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:64)
 at org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:96)
 at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:220)
 at com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:15)
 at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144)
 at com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:17)
 at org.nanocontainer.nanowar.ServletRequestContainerFilter.doFilter(ServletRequestContainerFilter.java:44)
 at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:627)
 at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:376)
 at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:870)
 at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:451)
 at com.evermind.server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:218)
 at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:119)
 at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:112)
 at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)
 at oracle.oc4j.network.ServerSocketAcceptHandler.procClientSocket(ServerSocketAcceptHandler.java:230)
 at oracle.oc4j.network.ServerSocketAcceptHandler.access$800(ServerSocketAcceptHandler.java:33)
 at oracle.oc4j.network.ServerSocketAcceptHandler$AcceptHandlerHorse.run(ServerSocketAcceptHandler.java:831)
 at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
 at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.NumberFormatException: null
 at java.lang.Integer.parseInt(Integer.java:415)
 at java.lang.Integer.parseInt(Integer.java:497)
 at com.katun.jsf.pagebean.DataTableBean.applyRowsPerPageValue(DataTableBean.java:158)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:585)
 at com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:126)
 ... 31 more

26. Re: Ajax4jsf and dataTable question

sergeysmirnov Apr 10, 2007 7:03 PM (in response to kristein)

So, you have a problem with converter to BigDecimal.
There are two places where you have inputText - Price and GrossMargin. The Price has no converter at all. GrossMargin has a converter, but it is a convertNumber. So, one of them is invalid (probably, both). Read more about JSF converter to find a right solution.

27. Re: Ajax4jsf and dataTable question

sreejag Apr 30, 2007 11:42 AM (in response to kristein)

HI there,
when you are using

<h:inputText id="price" value="#{item.dto.proposedPrice}"> <!-- TODO: Gotta make this editable -->
 <a4j:support event="onchange" reRender="margin" />
 <h:message for="price" />
 </h:inputText>

which method in the backing bean are you calling???