template-expansion sees hibernate-entity as java.lang.Boolean?

[Britske <gb...@gmail.com>]

first of all, excuse me for the post-flood, but I had some standing issues.
Perhaps some of these questions can help others as well so here this one
goes:

I was on a roll until i wanted to include the name of a City-instance
through a template expansion, which gave the error: 

Could not convert 'firstresult.poi.city.name' into a component parameter
binding: Class java.lang.Boolean does not contain a property named 'name'
(within property expression 'firstresult.poi.city.name'). 

However, city is of type City and not op type java.lang.Boolean!

The traversal goes through a POI and a City-class which are both mapped as
hibernate-entities. 
the traversal poi.getCity() is a lazy association. 

(for you hibernate gurus: 
       @ManyToOne(fetch = FetchType.LAZY) 
	@JoinColumn(name="cityid", nullable=false)
	@Cache(usage =
org.hibernate.annotations.CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
	private City city;

my expansion looks like:: 

<t:compositeBlockList t:id="comp1">
  <t:parameter name="groupheader">
	<div style="padding:5px">
		<strong>	
		${firstresult.poi.city.name}
		</strong>
	</div>
  </t:parameter> 
</t:compositeBlockList>

What is causing this error? Could the hibernate-entity City look like a
boolean (when reflection is used) before it is lazily fetched?? I can't
really imagine that but who knows? anyone?

thanks, 
Geert-Jan


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Re: template-expansion sees hibernate-entity as java.lang.Boolean?

[Britske <gb...@gmail.com>]

Has anyone ever experienced something similar? or has anyone used hibernate
lazy-associations succesfully with expansions in T5? 

I'm still not sure if it's a hibernate or a tapestry thing. 

FYI; the error is happening in: 
org.apache.tapestry.internal.services.PropertyConduitSourceImpl.readMethodForTerm(PropertyConduitSourceImpl.java:370)

and states: 
Could not convert 'firstresult.poi.city.name' into a component parameter
binding: Class java.lang.Boolean does not contain a property named 'name'
(within property expression 'firstresult.poi.city.name'). 

//Geert-Jan


Britske wrote:
> 
> first of all, excuse me for the post-flood, but I had some standing
> issues. Perhaps some of these questions can help others as well so here
> this one goes:
> 
> I was on a roll until i wanted to include the name of a City-instance
> through a template expansion, which gave the error: 
> 
> Could not convert 'firstresult.poi.city.name' into a component parameter
> binding: Class java.lang.Boolean does not contain a property named 'name'
> (within property expression 'firstresult.poi.city.name'). 
> 
> However, city is of type City and not op type java.lang.Boolean!
> 
> The traversal goes through a POI and a City-class which are both mapped as
> hibernate-entities. 
> the traversal poi.getCity() is a lazy association. 
> 
> (for you hibernate gurus: 
>        @ManyToOne(fetch = FetchType.LAZY) 
> 	@JoinColumn(name="cityid", nullable=false)
> 	@Cache(usage =
> org.hibernate.annotations.CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
> 	private City city;
> 
> my expansion looks like:: 
> 
> <t:compositeBlockList t:id="comp1">
>   <t:parameter name="groupheader">
> 	<div style="padding:5px">
> 		<strong>	
> 		${firstresult.poi.city.name}
> 		</strong>
> 	</div>
>   </t:parameter> 
> </t:compositeBlockList>
> 
> What is causing this error? Could the hibernate-entity City look like a
> boolean (when reflection is used) before it is lazily fetched?? I can't
> really imagine that but who knows? anyone?
> 
> thanks, 
> Geert-Jan
> 
> 
> 

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