Re: [eclipselink-users] How to force EclipseLink to use my own collectio

[Edson Richter <edsonrichter@xxxxxxxxxxx>]

Em 30/03/2013 15:44, Edson Richter escreveu:
> Hi!
>
> I've created a collection class that implements Map<K, T>.
> When I create the object for the first time, everything happens as 
> expected, but once I retrive the object from database (using either 
> find or Query), I'm getting a standard Map implementation instead my 
> customized version.
>
> How can I tell EclipseLink that it must use my specialized version of 
> the collection class?
> Current declaration is:
>
>   @ElementCollection(fetch = FetchType.EAGER)
>   @CollectionTable(name = "anexo", joinColumns = @JoinColumn(name = 
> "cadastroprofissional_id"))
>   @MapKeyColumn(name = "tipo")
>   public Map<String, Anexo> getAnexo() {
>     if(anexo==null) {
>       anexo = new AutoMap<String, Anexo>(String.class, Anexo.class);
>     }
>
>     return anexo;
>   }
>
> Where AutoMap is my specialized Map class.
>
> Thanks,
>
> Edson
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I've just found a workaround: If not my specialized collection, then I 
do change the type whenever I call getAnexo() before returning.
Method became:

  @ElementCollection(fetch = FetchType.EAGER)
  @CollectionTable(name = "anexo", joinColumns = @JoinColumn(name = 
"cadastroprofissional_id"))
  @MapKeyColumn(name = "tipo")
  public Map<String, Anexo> getAnexo() {
    if(anexo==null || !(anexo instanceof AutoMap)) {
      anexo = new AutoMap<String, Anexo>(String.class, Anexo.class, anexo);
    }

    return anexo;
  }


These are not big bloated objects, I can deal with the encapsulation 
process without any penalty.

Regards,

Edson