Re: [morph-user] morph (dis-)assemble - howto?

[Matt B. <gud...@ya...>]

Please use the mailing list, such as it is, for help.

For this situation, though it might technically be categorized as an assembly/disassembly situation, I would consider it to be a little awkward to do it that way in practice.  I could suggest two ways to do this:

A. Define a PropertyMappingCopier of SourceClass to DestinationClass, mapping 'docType' to 'this'.  Then define a PropertyMappingCopier of DocType to DestinationClass, mapping 'id' to 'docTypeId' and 'name' to 'docTypeName'.

B. Use a PropertyExpressionMappingCopier to map 'docType.id' to 'docTypeId' and 'docType.name' to 'docTypeName'.

If you also need basic property matching with either of these approaches, remember that CumulativeCopier is a big help for multi-pronged transformations.

HTH,
Matt B

--- On Thu, 10/8/09, Han...@co... <Han...@co...> wrote:

> From: Han...@co... <Han...@co...>
> Subject: morph (dis-)assemble - howto?
> To: gud...@ya..., sga...@li...
> Date: Thursday, October 8, 2009, 9:18 AM
> 
> 
> Hello all,
> 
> I use the morph framework
> for a web
> project and I'm facing the following mapping
> challenge:
> 
> 
> 
> SourceClass
> 
>      
>   ...
> 
>      
>   private
> DocType docType;
> 
>      
>   ...
> 
> 
> 
> Destination
> Class
> 
>      
>   ...
> 
>      
>   private
> String docTypeId
> 
>      
>   private
> String docTypeName
> 
> 
> 
> 
> 
> Class
> DocType
> 
>      
>   private
> long id;
> 
>      
>   private
> String name;
> 
> 
> 
> (each class with
> corresponding getters/setters)
> 
> 
> 
> We've set up
> transforming like this:
> 
>    
> SimpleDelegatingTransformer
> suche2form = new SimpleDelegatingTransformer();
> 
>    
> suche2FormComponents.add(new
> EcmStringConverter());     // own
> converter
> 
>    
> suche2FormComponents.add(new
> EcmDateToStringConverter());      // own
> converter
> 
>    
> suche2FormComponents.add(new
> NumberToTextConverter());
> 
>    
> suche2FormComponents.add(new
> BooleanToTextConverter());
> 
>    
> suche2FormComponents.add(new
> ContainerCopier());
> 
>    
> suche2FormComponents.add(new
> PropertyNameMatchingCopier());
> 
>     Object[]
> suche2FormComponentsA
> = (Object[])suche2FormComponents.toArray(new
> Object[suche2FormComponents.size()]);
>    
> 
>    
> suche2form.setComponents(suche2FormComponentsA);
> 
>     
> 
>    
> suche2form.copy(result,source);
> 
>    
> System.out.println(result.getDocTypeName());
> 
>    
> System.out.println(result.getDocTypeId());
> 
>    
> System.out.println(result.getDocType());
> 
> 
> 
> --> Question: How can
> we disassemble
> sourceclass.docType into destinationClass.docTypeId and
> docTypeName properties
> and vice versa (assemble docTypeId / docTypeName into
> docType)?
> 
> --> Are there any
> samples available
> about the net.sf.morph.transform.copiers.DisassemblerCopier
> / net.sf.morph.transform.copiers.AssemblerCopier
> ?
> 
> 
> 
> Thanks &
> regards,
> 
> Hansjörg
> 
> 
> 
> 
> 
> 
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