target is null for setProperty(null, "targetUrl", thomas)

[Liju Thomas <lt...@annetsite.com>]

Hi All,

I am getting an error called 'target is null for setProperty(null, "targetUrl",
thomas)'.
This is being generated when Iam Editing a record.
 - I have a List page where iam displaying lots of records with Edit link in
each record.
 - When i click edit link I get another page where the record details are displayed.
 - After editing a few details or editing nothing when I click submit I get this
paticular Error.

Following is my Class file:

package com.palm.fnur.page;

import java.text.Format;
import java.text.NumberFormat;
import java.util.Date;

import org.apache.log4j.Logger;
import org.apache.tapestry.IPage;
import org.apache.tapestry.IRequestCycle;




import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;


import com.palm.fnur.model.entities.BusinessUsers;
import com.palm.fnur.model.entities.FnuRedirect;


public abstract class EditFnuPage extends SearchResultsPage {
	private String sourceUrl, targetUrl, businessUserName, deptName, emailAddress,
autoGeneratedFlag;
	
	static Logger logger = Logger.getLogger(EditFnuPage.class);
	public abstract FnuRedirect getFnuRedirect();
	public abstract void setFnuRedirect(FnuRedirect fnuRedirect);
	
	public abstract String getTargetUrl();
	public void setTargetUrl(String Value){
		targetUrl = Value;
	}
	public void beginEdit(IRequestCycle cycle,long index)
	{
		logger.info("Value of Index"+index);
		ApplicationContext context = new
ClassPathXmlApplicationContext("applicationContext.xml");
		com.palm.fnur.dao.IFnuDAO iFnuDAO =
(com.palm.fnur.dao.IFnuDAO)context.getBean("fnuDAO");
		logger.info("Called getEditFnuLIJU"+index);
		FnuRedirect fnuRedirect = (FnuRedirect)iFnuDAO.getFnu(index);
		logger.info("ValLIJU CALLEDdex"+index);
		logger.info("Value of Index"+fnuRedirect.getAutoGeneratedFlag());
		if(fnuRedirect.getAutoGeneratedFlag().equals("Y"))
		{
			fnuRedirect.setAutoGeneratedFlag("true");	
		}else
		{
			fnuRedirect.setAutoGeneratedFlag("false");
		}
		
		setFnuRedirect(fnuRedirect);
		cycle.activate(this);	
	}
	public IPage onOk(IRequestCycle cycle)
	{
		
		logger.info("EditFNU onOk Called.");
		
		
		boolean inserted = false;
		logger.info("EditFNU CAlled ...1.");
		try
		{
			logger.info("AddFNU CAlled ...2.");
            inserted = fnuDao.editFnu(fnuRedirect);
        }
		catch(Exception e)
		{
			inserted = false;
		}
		ConfirmationPage resultPage = (ConfirmationPage)
cycle.getPage("AdminConfirmAddFnu");
		if (inserted == true)
		{
			cycle.activate("Home");
		}
		else
		{
			cycle.activate("FnuManual");
		}
	return resultPage;
	}
}


And following is my page file


<?xml version="1.0" encoding ="UTF-8"?>
<!DOCTYPE page-specification PUBLIC
	"-//Apache Software Foundation//Tapestry Specification 4.0//EN"
	"http://jakarta.apache.org/tapestry/dtd/Tapestry_4_0.dtd">
<page-specification class="com.palm.fnur.page.EditFnuPage">

<component id="edit" type="Form">
		<binding name="listener" value="listener:onOk"/>
</component>

	<inject property="resultPage" type="page" object="Result"/>
  	<component id="leftnav" type="AdminLeftNav"/>
	<component id="head" type="AdminHead"/>
	<component id="footer" type="AdminFooter"/>

<component id="fnuId" type="Insert">
		<binding name="value" value="fnuRedirect.fnuId"/>
</component>

<component id="sourceUrl" type="Insert">
		<binding name="value" value="fnuRedirect.sourceUrl"/>
</component>
<component id="httpStatus" type="PropertySelection" >
	<binding name="value" value="fnuRedirect.httpStatusId" />
	<binding name="model" value="httpStatusSelection"/>
</component>
<component id="status" type="PropertySelection" >
	<binding name="value" value="fnuRedirect.fnuStatusId" />
	<binding name="model" value="statusSelection"/>
</component>
<component id="targetUrl" type="TextField">
		<binding name="value" value="fnuRedirect.targetUrl"/>
</component>

<component id="businessUserName" type="TextField">
		<binding name="value" value="fnuRedirect.businessUserName"/>
</component>

<component id="emailAddress" type="TextField">
		<binding name="value" value="fnuRedirect.emailAddress"/>
</component>

<component id="deptName" type="TextField">
		<binding name="value" value="fnuRedirect.deptName"/>
</component>
<component id="pubDate" type="DatePicker">
<binding name="value" value="fnuRedirect.modifiedDate"/>
</component>

<component id="autoGeneratedFlag" type="Checkbox">
		<binding name="value" value="fnuRedirect.autoGeneratedFlag"/>
	</component>
</page-specification>




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Re: target is null for setProperty(null, "targetUrl", thomas)

[Nick Westgate <ni...@key-planning.co.jp>]

Liju Thomas wrote:
 > Hi All,
 >
 > I am getting an error called 'target is null for setProperty(null, "targetUrl",
 > thomas)'.

This is an OGNL error, where it's trying to set a property,
"targetUrl" in this case, on an object that doesn't exist.

Fomr your source code:
 > <component id="targetUrl" type="TextField">
 > 		<binding name="value" value="fnuRedirect.targetUrl"/>
 > </component>

The target is fnuRedirect, but this object is not defined.

Cheers,
Nick.




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