Ho! I found the answer,it's just not a hibernate issue,just since it
was a wrong way to write ValueEncoder implementation.
At first.it's my old CategoryEncoder class:
public class CategoryEncoder implements ValueEncoder<Category>{
private CategoryService catService;
public CategoryEncoder(CategoryService catService) {
super();
this.catService = catService;
}
@Override
public String toClient(Category cat) {
return String.valueOf(cat.getId());
}
@Override
public Category toValue(String id) {
return catService.getFromId(Integer.parseInt(id));
}
}
these code would get client or server side value from catService,this
is the mistake.
I fixed to these,at first get the category object List,and cut off the
relation between ValueEncoder and catService:
public class GenericValueEncoder<T> implements ValueEncoder<T> {
protected List<T> list;
protected final PropertyAccess access;
protected final String fieldName;
public GenericValueEncoder(List<T> list, String fieldName,
PropertyAccess propertyAccess) {
this.list = list;
this.fieldName = fieldName;
this.access = propertyAccess;
}
public String toClient(T obj) {
if (fieldName == null) {
return obj + "";
} else {
return access.get(obj,fieldName)+"";
}
}
public T toValue(String string) {
for (T obj : list) {
if (toClient(obj).equals(string)) return obj;
}
return null;
}
}
public class CategoryValueEncoder extends GenericValueEncoder<Category>{
public CategoryValueEncoder(List<Category> cats,PropertyAccess
propertyAccess) {
super(cats,"id",propertyAccess);
}
}
in ListView class,will be fixed as:
...
@Inject
private PropertyAccess propAccess;
public ValueEncoder<Category> getCatEncoder(){
log.debug("getCatEncoder...");
return new CategoryValueEncoder(catService.list(),propAccess);
}
...
ok,it's my resolution.
its knowledge came from tapestry
wiki:http://wiki.apache.org/tapestry/Tapestry5SelectObject?highlight=%28ValueEncoderSource%29
thanks,tapestry and friends!
On Wed, Sep 23, 2009 at 7:22 PM, Thiago H. de Paula Figueiredo
<thiag...@gmail.com> wrote:
> Em Wed, 23 Sep 2009 07:10:29 -0300, cleverpig <greatclever...@gmail.com>
> escreveu:
>
>> org.hibernate.LazyInitializationException: could not initialize proxy
>
> This is a Hibernate issue, not a Tapestry one. By the way, understanding
> this exception is basic Hibernate knowledge. Your solution is in the manual.
> ;)
>
> --
> Thiago H. de Paula Figueiredo
> Independent Java consultant, developer, and instructor
> http://www.arsmachina.com.br/thiago
>
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>
>
--
cleverpig(Dan)
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