That's more like it. Are all you fields of type string?
Can I see the before and after actions?
You sure can.
The fields inside the PMIRateDTO ( the object that makes up each element of the List ) are all of type String.
Here is the before action:
/* * PreloadRateEditor.java */ package com.dbo.struts.actions;
import java.text.NumberFormat; import java.util.Locale;
import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse;
import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory;
import com.dbo.bd.RateStoreBD; import com.dbo.dto.RateDTO; import com.dbo.struts.forms.RateEditorForm;
import org.apache.struts.action.Action; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import org.apache.struts.action.DynaActionForm;
/**
* Struts Action to Load current rates from xml, then preload a Struts Form Bean before sending request
* to RateEditor.jsp to be displayed.
*
* === XDoclet Configuration Tags ===
*
* @struts.action
* name="persistRateInfo"
* path="/preloadRateEditor"
* scope="session"
* input="RateEditor.jsp"
* validate="false"
* parameter=""
*
* @struts.action-forward
* name="failure"
* path="/main.jsp"
*
* @struts.action-forward
* name="success"
* path="/RateEditor.jsp"
*
*
*/
public class PreloadRateEditorAction extends Action
{
// Obtain log instance for logging.
private Log log = LogFactory.getLog( this.getClass( ) );
/* Our implementation of Action.execute(); */
public ActionForward execute( ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response) throws Exception {
log.debug( "PreloadRateEditorAction.execute() called." );
/* Grab an instance of RateStoreBD() to retrieve the current rates */
RateStoreBD store = new RateStoreBD();
/* Load the rates from storage */
RateDTO currentRates = store.loadRates();
// debug info
log.debug( "RateDTO retrieved from storage: " + currentRates );
/* Here we cast the form we were passed into an instance of DynaActionForm, for easier
* manipulation. */
DynaActionForm loadForm = (DynaActionForm) form;
/* Obtain instance of Locale for use in NumberFormat. Used to format our doubles to strings */
Locale loc = Locale.US;
NumberFormat fmt = NumberFormat.getInstance(loc);
//get information from rates DTO and populate the form bean with them.
loadForm.set( "hazardInsRate", fmt.format( currentRates.getHazardInsRate() ) );
loadForm.set( "dealOneIR", fmt.format( currentRates.getDealOneIR( ) ) );
loadForm.set( "dealOneTerm", Integer.toString( currentRates.getDealOneTerm( ) ) );
loadForm.set( "dealOnePercentageDown", fmt.format( currentRates.getDealOnePercentageDown() ) );
loadForm.set( "dealTwoIR", fmt.format( currentRates.getDealTwoIR( ) ) );
loadForm.set( "dealTwoTerm", Integer.toString(currentRates.getDealTwoTerm( ) ) );
loadForm.set( "dealTwoPercentageDown", fmt.format( currentRates.getDealTwoPercentageDown() ) );
loadForm.set( "dealThreeIR", fmt.format( currentRates.getDealThreeIR( ) ) );
loadForm.set("dealThreeTerm", Integer.toString(currentRates.getDealThreeTerm( ) ) );
loadForm.set( "dealThreePercentageDown", fmt.format( currentRates.getDealThreePercentageDown() ) );
loadForm.set( "pmiRanges", currentRates.getPmiRanges() );
/* Store the form bean in request scope so that the <html> custom taglib can access it */
//request.setAttribute( "persistRateInfo", currentRates );
request.getSession().setAttribute( "persistRateInfo", currentRates );
/* set the forward to be successful */
String myForward = "success";
/* return forward */
return mapping.findForward( myForward );
}
}
Here is the action that the form is posted to:
/* * PersistRateInfo.java */ package com.dbo.struts.actions;
import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse;
import com.dbo.bd.RateStoreBD; import com.dbo.dto.RateDTO; import com.dbo.struts.forms.RateEditorForm;
import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.apache.struts.action.Action; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import org.apache.struts.action.DynaActionForm;
/**
* Action which obtains an instance of RateStoreBD() and saves an instance of the current mortgage rates
* for use in the application.
*
* === XDoclet Struts Action Config Tags ===
*
* @struts.action
* name="persistRateInfo"
* path="/persistRateInfo"
* scope="session"
* input="RateEditor.jsp"
* validate="false"
* parameter=""
* * we forward control back to RateEditor.jsp upon success or failure.
* @struts.action-forward
* name="done"
* path="/RateEditor.jsp"
*/
public class PersistRateInfo extends Action
{
/* Load instance of log */
private Log log = LogFactory.getLog( this.getClass( ) );
public ActionForward execute( ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response) throws Exception {
log.debug( "PersistRateInfo.execute() called." );
/* Instantiate instance of RateDTO to store information submitted in form. */
RateDTO rates = new RateDTO();
/* Instantiate instance of RateStoreBD to use to store our values. */
RateStoreBD store = new RateStoreBD();
/* Cast our form to DynaActionForm for easier operation. (keeps from having to use beanutils)*/
DynaActionForm rateForm = (DynaActionForm) form;
/* populate RateDTO() with form values */
rates.setHazardInsRate( Double.parseDouble( (String) rateForm.get( "hazardInsRate" ) ) );
rates.setDealOneIR( Double.parseDouble( (String) rateForm.get( "dealOneIR" ) ) );
rates.setDealOneTerm( Integer.parseInt( (String) rateForm.get( "dealOneTerm" ) ) );
rates.setDealOnePercentageDown( Double.parseDouble( (String) rateForm.get( "dealOnePercentageDown" ) ) );
rates.setDealTwoIR( Double.parseDouble( (String) rateForm.get( "dealTwoIR" ) ) );
rates.setDealTwoTerm( Integer.parseInt( (String) rateForm.get( "dealTwoTerm" ) ) );
rates.setDealTwoPercentageDown( Double.parseDouble( (String) rateForm.get( "dealTwoPercentageDown" ) ) );
rates.setDealThreeIR( Double.parseDouble( (String) rateForm.get( "dealThreeIR" ) ) );
rates.setDealThreeTerm( Integer.parseInt( (String) rateForm.get( "dealThreeTerm" ) ) );
rates.setDealThreePercentageDown( Double.parseDouble( (String) rateForm.get( "dealThreePercentageDown" ) ) );
rates.setPmiRanges( rateForm.get( "pmiRanges" ) );
// debug info
log.debug( "RatesDTO bieng passed to form: " + rates );
/* store rate values */
store.storeRates( rates );
/* Set forward */
String myForward = "done";
/* return forward */
return mapping.findForward( myForward );
}
}
In the interest of completeness here again is the DynaActionForm bean declaration:
<form-bean name="persistRateInfo" type="org.apache.struts.action.DynaActionForm">
Specify the dynamic properties of the form <form-property name="hazardInsRate" type="java.lang.String"/> <form-property name="dealOneTerm" type="java.lang.String"/> <form-property name="dealOneIR" type="java.lang.String"/> <form-property name="dealOnePercentageDown" type="java.lang.String"/> <form-property name="dealTwoTerm" type="java.lang.String"/> <form-property name="dealTwoIR" type="java.lang.String"/> <form-property name="dealTwoPercentageDown" type="java.lang.String"/> <form-property name="dealThreeTerm" type="java.lang.String"/> <form-property name="dealThreeIR" type="java.lang.String"/> <form-property name="dealThreePercentageDown" type="java.lang.String"/> <form-property name="pmiRanges" type="java.util.List" /> </form-bean>
And the snippet from the jsp that uses the bean:
<logic:iterate id="pmiRanges" name="persistRateInfo" property="pmiRanges">
<tr>
<td style="font-family: sans; font-size: 12;" width="100">Low: </td>
<td style="font-family: sans; font-size: 12;">
<html:text name="pmiRanges" property="low" indexed="true" size="5"/>
</td>
<td style="font-family: sans; font-size: 12;" width="100">High: </td>
<td style="font-family: sans; font-size: 12;">
<html:text name="pmiRanges" property="high" indexed="true" size="5"/>
</td>
<td style="font-family: sans; font-size: 12;" width="100">Rate: </td>
<td style="font-family: sans; font-size: 12;">
<html:text name="pmiRanges" property="rate" indexed="true" size="5"/>
</td>
</tr>
</logic:iterate>
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