Hi,
I am looking for a betwixt feature I call "summary" having found no better term.
Requirements are as follows:
A air fare list is converted to the following XML:
<fareList>
<fare>
<departure code="SXF"/>
<destination code="JFK"/>
<price amount="123.45" currency="EUR"/>
</fare>
<fare>
<departure code="SXF"/>
<destination code="JFK"/>
<price amount="200.45" currency="EUR"/>
</fare>
<fare>
<departure code="SXF"/>
<destination code="JFK"/>
<price amount="323.45" currency="EUR"/>
</fare>
</fareList
Now it happens that codes like "JFK" (JFK stands for New York John F. Kennedy
aiport) are not necessarily self-describing, and there is a lot of information
related to an airport, e.g. name, city, country, web site, weather conditions
etc.
This information should also be included in the XML document, but in a separate
section - to keep the XML document smaller.
So the XML should really look like:
<fareList>
<fare>
<departure code="SXF"/>
<destination code="JFK"/>
<price amount="123.45" currency="EUR"/>
</fare>
<fare>
<departure code="SXF"/>
<destination code="JFK"/>
<price amount="200.45" currency="EUR"/>
</fare>
<fare>
<departure code="SXF"/>
<destination code="JFK"/>
<price amount="323.45" currency="EUR"/>
</fare>
<summary>
<airports>
<airport>
<code>JFK</code>
<name>John F. Kennedy International</name>
<city>New York</city>
<state>New York</state>
<country isoCode="US">United States of America</country>
</airport>
</airports>
</summary>
</fareList
Such an XML structure can of course already be built via betwixt, but my
application has this kind of requirements in a couple of XML documents and I
don't want to browse the object tree for each and every bean to find out which
airports are contained.
In fact an elegant way would be to have
(1) a bean collector which is called whenever a bean is converted to XML
(2) a summary builder which uses the collected beans to build a summary
is this (or something similar) already available in betwixt ? If not I'm
willing to put some work into and contribute the appropriate SVN patches.
Rgds
Holger
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