custom Map converter with XStreamImplicit anotation

[Martin Minka]

I would like to produce from a HashMap following XML:
<a id="map_key">map_value</a>

I tried:
@XStreamImplicit(keyFieldName = "a")
@XStreamConverter(MyMapConverter.class)
HashMap<String, String> map = new HashMap<String, String>();

But this combination never enters MyMapConverter.

Is there a way to achieve this ?

Thank you.

[Jörg Schaible]

Hi Martin,

Post by Martin Minka
<a id="map_key">map_value</a>
@XStreamImplicit(keyFieldName = "a")
@XStreamConverter(MyMapConverter.class)
HashMap<String, String> map = new HashMap<String, String>();
But this combination never enters MyMapConverter.
Is there a way to achieve this ?

No. Implicit collections/arrays/maps are a hack in the generic converters
(e.g. ReflectionConverter) to skip the "implicit" container and write their
elements like own elements. Therefore is no converter required/called for
the map. Your converter is only called without the implicit declaration.

- Jörg


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[Martin Minka]

Jorg,
thank you for quick reply.

And is there a way for the converter to build output

<a id="map_key">map_value</a>

without implicit anotation ?
I don't need to use annotation, API would be also good.

Martin

Post by Jörg Schaible
Hi Martin,

Post by Martin Minka
<a id="map_key">map_value</a>
@XStreamImplicit(keyFieldName = "a")
@XStreamConverter(MyMapConverter.class)
HashMap<String, String> map = new HashMap<String, String>();
But this combination never enters MyMapConverter.
Is there a way to achieve this ?

No. Implicit collections/arrays/maps are a hack in the generic converters
(e.g. ReflectionConverter) to skip the "implicit" container and write their
elements like own elements. Therefore is no converter required/called for
the map. Your converter is only called without the implicit declaration.
- Jörg
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[Jörg Schaible]

Hi Martin,

Post by Martin Minka
Jorg,
thank you for quick reply.
And is there a way for the converter to build output
<a id="map_key">map_value</a>
without implicit anotation ?
I don't need to use annotation, API would be also good.

Implicit declaration by annotation or API make no difference, its the
implementation of the ReflectionProvider that skips your map in this case.
All you can do is to write a custom converter for the type that contains
this map.

- Jörg


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