[T5]: Persistent bean for BeanEditForm?

[Andy Huhn <am...@hslt-online.com>]

Hello,

I have a page that uses a BeanEditForm to allow the user to edit a bean.
I'm using the @Validate annotation on various fields in the bean to mark
them as required, or to assign a minimum length, etc.

My problem is that if the validation fails and the page redisplays, all
of the user's changes are lost.  I thought about using @Persist to
persist the bean (_orgnztn in the class below), but won't that cause
issues, since this is a Hibernate entity?  Won't that cause a reference
to the Session to be persisted also, so that the next time this page is
loaded, it may use the wrong Session?

My page class is something like this:

  public class EditOrganization {

      @Component
      private BeanEditForm _orgnztnEditForm;
    
      @Persist( "flash" )
      private Integer _orgnztnId;
    
      private Organization _orgnztn;

      public Object onActivate( Integer prmOrgnztnId )              {
          setOrgnztnId( prmOrgnztnId );
          return( null );
      }
    
      public Object onActivate()              {
          if( getOrgnztnId() != null )           {
              setOrgnztn( <snip>get from DAO</snip> );
          }
          return( unathrzdRdrct() );
      }
    
      public Object onPassivate()			{
          return( getOrgnztnId() );
      }
    
      public Object onSuccess()               {
          Organization thisOrgnztn = getOrgnztn();

          <snip>Use Hibernate to update the
             Organization record in the DB</snip>
          return( <snip>a page class</snip> );
      }

      public Organization getOrgnztn() {
          return _orgnztn;
      }

      public void setOrgnztn(Organization prmOrgnztn ) {
          _orgnztn = prmOrgnztn;
      }

      public Integer getOrgnztnId() {
          return _orgnztnId;
      }

      public void setOrgnztnId( Integer prmOrgnztnId ) {
          _orgnztnId = prmOrgnztnId;
      }

  }    

And my template is similar to this:

  <t:layout
      xmlns:t="http://tapestry.apache.org/schema/tapestry_5_0_0.xsd" >

      <t:beaneditform object="orgnztn" t:id="orgnztnEditForm">
      </t:beaneditform>

  </t:layout>

Thanks,
Andy


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Re: [T5]: Persistent bean for BeanEditForm?

[Tobias Wehrum <Le...@dragonlab.de>]

Hi Andy,

maybe I'm leaning to much out of the window because I have not enough 
Hibernate knowledge, but I don't think Hibernate stores its sessions in 
the entities - more like vice versa storing references to the entities 
in the session. (Don't count to much on my word - like I said, it's just 
an assumption.)

Well, at least I can say for sure: I'm using @Persist on my hibernate 
entities and it never caused a problem.

Tobias

Andy Huhn schrieb:
> Hello,
>
> I have a page that uses a BeanEditForm to allow the user to edit a bean.
> I'm using the @Validate annotation on various fields in the bean to mark
> them as required, or to assign a minimum length, etc.
>
> My problem is that if the validation fails and the page redisplays, all
> of the user's changes are lost.  I thought about using @Persist to
> persist the bean (_orgnztn in the class below), but won't that cause
> issues, since this is a Hibernate entity?  Won't that cause a reference
> to the Session to be persisted also, so that the next time this page is
> loaded, it may use the wrong Session?
>
> My page class is something like this:
>
>   public class EditOrganization {
>
>       @Component
>       private BeanEditForm _orgnztnEditForm;
>     
>       @Persist( "flash" )
>       private Integer _orgnztnId;
>     
>       private Organization _orgnztn;
>
>       public Object onActivate( Integer prmOrgnztnId )              {
>           setOrgnztnId( prmOrgnztnId );
>           return( null );
>       }
>     
>       public Object onActivate()              {
>           if( getOrgnztnId() != null )           {
>               setOrgnztn( <snip>get from DAO</snip> );
>           }
>           return( unathrzdRdrct() );
>       }
>     
>       public Object onPassivate()			{
>           return( getOrgnztnId() );
>       }
>     
>       public Object onSuccess()               {
>           Organization thisOrgnztn = getOrgnztn();
>
>           <snip>Use Hibernate to update the
>              Organization record in the DB</snip>
>           return( <snip>a page class</snip> );
>       }
>
>       public Organization getOrgnztn() {
>           return _orgnztn;
>       }
>
>       public void setOrgnztn(Organization prmOrgnztn ) {
>           _orgnztn = prmOrgnztn;
>       }
>
>       public Integer getOrgnztnId() {
>           return _orgnztnId;
>       }
>
>       public void setOrgnztnId( Integer prmOrgnztnId ) {
>           _orgnztnId = prmOrgnztnId;
>       }
>
>   }    
>
> And my template is similar to this:
>
>   <t:layout
>       xmlns:t="http://tapestry.apache.org/schema/tapestry_5_0_0.xsd" >
>
>       <t:beaneditform object="orgnztn" t:id="orgnztnEditForm">
>       </t:beaneditform>
>
>   </t:layout>
>
> Thanks,
> Andy
>
>
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> To unsubscribe, e-mail: users-unsubscribe@tapestry.apache.org
> For additional commands, e-mail: users-help@tapestry.apache.org
>
>
>   


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