shannon 2002/06/03 11:50:02
Added: src/documentation/xdocs/faq faq-aggregators.xml
Log:
new faq file for aggregators
Revision Changes Path
1.1 xml-cocoon2/src/documentation/xdocs/faq/faq-aggregators.xml
Index: faq-aggregators.xml
===================================================================
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE faqs PUBLIC "-//APACHE//DTD FAQ V1.0//EN" "../dtd/faq-v10.dtd">
<faqs title="Aggregator FAQs">
<faq>
<question>
What is an Aggregator?
</question>
<answer>
<p>
An aggregator produces XML content. It is composed of one or more parts, each of
which defined by an XML source. During pipeline processing, all parts of an aggregator
are merged.
The name of the parent element which contains the merged XML content from each part
is defined by the value of the map:aggregate's attribute called element.
</p>
<p>
In the example below,the XML content of pipelines matching <code>book-*.xml</code>
and <code>body-*.xml</code> are aggregated, having a root element called site.
</p>
<source><![CDATA[
<map:match pattern="*.html">
<map:aggregate element="site">
<map:part src="cocoon:/book-{1}.xml"/>
<map:part src="cocoon:/body-{1}.xml"/>
</map:aggregate>
...
]]></source>
<p>
The aggregated XML content could look like this:
</p>
<source><![CDATA[
<site>
<menu>
<!-- content of book XML -->
...
</menu>
<document>
<!-- content of body XML -->
...
</document>
</site>
]]></source>
</answer>
</faq>
</faqs>
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