This is possible theoretically, but I haven't thought deeply about
Hessian replacement scenario. I am personally planning to use it as a
framework for backup/restore solution for huge databases that allows
to apply custom rules to data filtering and processing of the data.
If anything, this may end up being a replacement of
org.apache.cayenne.xml package. XStream provides a well-defined
(de)serialization lifecycle that allows to build various interceptors
and custom serializers. Also it has "plugins" for serialization
formats. So for example out of the box it can produce either XML or
JSON.
Comparing that to Hessian, my wild guess is that XStream won't be
faster (even with compact JSON output), but it certainly more
developer-friendly (cleaner API, better documentation, etc).
Andrus
On Sep 13, 2009, at 7:43 AM, Andrey Razumovsky wrote:
> Hi Andrus,
>
> Is this feature a replacement for Hessian serialization? What are the
> benefits of using XStream (is it faster, etc)?
>
> Thanks
>
> 2009/9/11 <aadamchi..pache.org>
>
>> Author: aadamchik
>> Date: Fri Sep 11 01:32:14 2009
>> New Revision: 813647
>>
>> URL: http://svn.apache.org/viewvc?rev=813647&view=rev
>> Log:
>> prototyping (de)serializer based on XStream
>>
>> cleanup/refactoring
>>
>> Modified:
>> cayenne/sandbox/cayenne-serialization/pom.xml
>>
>> Modified: cayenne/sandbox/cayenne-serialization/pom.xml
>> URL:
>> http://svn.apache.org/viewvc/cayenne/sandbox/cayenne-serialization/pom.xml?rev=813647&r1=813646&r2=813647&view=diff
>>
>> =
>> =
>> =
>> =
>> =
>> =
>> =
>> =
>> =
>> =====================================================================
>> --- cayenne/sandbox/cayenne-serialization/pom.xml (original)
>> +++ cayenne/sandbox/cayenne-serialization/pom.xml Fri Sep 11
>> 01:32:14 2009
>>.. -21,9 +21,9 @@
>> <artifactId>cayenne-parent</artifactId>
>> <version>3.0-SNAPSHOT</version>
>> </parent>
>> - <artifactId>cayenne-xstream</artifactId>
>> - <name>Serialization Framework based on XStream</name>
>> - <description>A Framework for customizable rule-based
>> serialization
>> of persistent object subgraphs based on XStream.</description>
>> + <artifactId>cayenne-serialization</artifactId>
>> + <name>Serialization Framework for Persistent Objects</name>
>> + <description>A Framework for customizable rule-based
>> serialization
>> of persistent object subgraphs, currently based on XStream.</
>> description>
>> <packaging>jar</packaging>
>> <dependencies>
>> <dependency>
>>
>>
>>
>
>
> --
> Andrey
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