[T5] How to call hibernate session in TypeCoercer?

[Jun Tsai <ju...@gmail.com>]

hi,
 I want to add a TypeCoercer using tapestry-hibernate.

 public  static void contributeTypeCoercer(
            Configuration<CoercionTuple> configuration,
            @Inject
            final Session session) {
        Coercion<PersistModel, String> coercion1 = new
Coercion<PersistModel, String>() {
            public String coerce(PersistModel input) {
                return getEntityClass(input).getName()+ ":"
                + session.getIdentifier(input);
            }
        };

   configuration.add(new CoercionTuple<PersistModel, String>(
                PersistModel.class, String.class, coercion1));
        Coercion<String,PersistModel> coercion2= new
Coercion<String,PersistModel>() {
            public PersistModel coerce(String input) {
                String [] strs=input.split(":");
                return (PersistModel) session.get(strs[0],strs[1]);
            }
        };

        configuration.add(new CoercionTuple< String,PersistModel>(
                String.class, PersistModel.class, coercion2));
}

java.lang.RuntimeException: Exception constructing service
'ServletApplicationInitializer': Unable to instantiate class
org.apache.tapestry.services.TapestryModule as a module builder: Exception
constructing service 'Alias': Error invoking service builder method
org.apache.tapestry.services.TapestryModule.build(Log, String, AliasManager,
Collection) (at TapestryModule.java:249) (for service 'Alias'): Exception
constructing service 'TypeCoercer': Error invoking constructor
org.apache.tapestry.ioc.internal.services.TypeCoercerImpl(Collection) (at
TypeCoercerImpl.java:101) (for service 'TypeCoercer'): Error invoking
service contribution method
lichen.services.AppModule.contributeTypeCoercer(Configuration,
Session): Exception constructing service 'Alias': Construction of service
'Alias' has failed due to recursion: the service depends on itself in some
way. Please check org.apache.tapestry.services.TapestryModule.build(Log,
String, AliasManager, Collection) (at TapestryModule.java:249) for
references to another service that is itself dependent on service 'Alias'.



Session depends Alias ,and Alias depends TypeCoercer.

How to fix?

Thanks.
Jun Tsai

-- 
Welcome to China Java Users Group(CNJUG).
http://cnjug.dev.java.net

Re: [T5] How to call hibernate session in TypeCoercer?

[Davor Hrg <hr...@gmail.com>]

TypeCoercer is at very core of tapestry,
Alias service also, so using @Inject
will fail when contributing to TypeCorcer,

use @InjectService instead @Inject:

 public  static void contributeTypeCoercer(
           Configuration<CoercionTuple> configuration,
           @InjectService("Session")
           final Session session) {


Davor Hrg

On 7/6/07, Jun Tsai <ju...@gmail.com> wrote:
>
> or how to access the registry object in TypeCorercer?
>
>
>
> --
> Welcome to China Java Users Group(CNJUG).
> http://cnjug.dev.java.net
>

Re: [T5] How to call hibernate session in TypeCoercer?

[Jun Tsai <ju...@gmail.com>]

or how to access the registry object in TypeCorercer?



-- 
Welcome to China Java Users Group(CNJUG).
http://cnjug.dev.java.net