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INT-3193: Add ObjectToMapTransformer flatten attr

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JIRA: https://jira.springsource.org/browse/INT-3193
This commit is contained in:
Mauro Franceschini
2013-11-04 10:45:22 +02:00
committed by Artem Bilan
parent 4dd95c41ea
commit cd3f13ac91
5 changed files with 71 additions and 1 deletions
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23
src/reference/docbook/transformer.xml
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@@ -184,10 +184,33 @@ public class Kid {
   // setters and getters are omitted
}]]></programlisting>
</para>
<para>
If you need to create a "structured" map, you can provide the 'flatten' attribute. The default value for this
attribute is 'true' meaning the default behavior; if you provide a 'false' value, then the structure will be a
map of maps.
</para>
<para>
For example:
<programlisting language="java"><![CDATA[public class Parent {
private Child child;
private String name;
// setters and getters are omitted
}
public class Child {
private String name;
private List<String> nickNames;
// setters and getters are omitted
}]]></programlisting>
... will be transformed to a Map which looks like this:
<code>{name=George, child={name=Jenna, nickNames=[Bimbo, ...]}}</code>
</para>
<para>
To configure these transformers, Spring Integration provides namespace support
Object-to-Map:
<programlisting language="xml"><![CDATA[<int:object-to-map-transformer input-channel="directInput" output-channel="output"/>]]></programlisting>
or
<programlisting language="xml"><![CDATA[<int:object-to-map-transformer input-channel="directInput" output-channel="output" flatten="false"/>]]></programlisting>
Map-to-Object
<programlisting language="xml"><![CDATA[<int:map-to-object-transformer input-channel="input" 
                       output-channel="output"