Hi
first of all, there's absolutely no need to have container classes (and
their corresponding mappings) for <Root> and <Sub>, when the location
attribute could be used instead (please have a look at the reference
guide for detailed explanations).
Second, for all Java classes you want to bind to a corresponding XML,
you will have to use <map-to xml="..." /> definitions.
And most importantly, please read up on Castor XML and its functionality
before asking questions about mapping problems.
<class name="org.test.C">
<field name="C" type="org.test.C" collection="arraylist">
<bind-xml name="C1" node="element" />
</field>
</class>
Assuming that you have a class org.test.C that has a member declaration
similar to
private List<C1> c1;
you need to map this member as follows:
<field name="c1" type="org.test.C1" collection="arraylist">
<bind-xml name="C1" />
</field>
I hope this makes sense. If not, please have a look at
http://www.castor.org for a general introduction to XML data binding.
Regards
Werner
On 29.07.2010 16:27, sric1 wrote:
Hello,
I am really struggling with castor. I am using castor 1.3.1. I have used
castor generated classes for mapping but i faced issues with class loader.
Now i am going to XML based mapping instead of generated classes. But could
not find enough information on mapping nested elements. Could anyone help me
with this.
Sample xml message:
<Root>
<Sub>
<C>
<C1>
<test1>ac6556979b44</test1>
<test2 xsi:nil="true"/>
<test3>message</test3>
<test4 xsi:nil="true"/>
</C1>
<C1>
<test1>b3quiqioe8ii</test1>
<test2 xsi:nil="true"/>
<test3>message2</test3>
<test4 xsi:nil="true"/>
</C1>
<C1>
<test1>naciehi6373</test1>
<test2 xsi:nil="true"/>
<test3>message3</test3>
<test4 xsi:nil="true"/>
</C1>
</C>
</Sub>
</Root>
Here element "C" contains multiple(array of) C1 elements.
Mapping file:
<code>
<mapping xmlns="http://castor.exolab.org/";>
<class name="org.test.Root">
<map-to xml="Root" />
<field name="Sub" type="org.test.Sub"
required="true">
<bind-xml name="Sub" node="element"/>
</field>
</class>
<class name="org.test.Sub">
<field name="Sub"
type="org.test.Sub" required="true">
<bind-xml name="C" node="element" />
</field>
</class>
<class name="org.test.C">
<field name="C"
type="org.test.C" required="false"
collection="arraylist">
<bind-xml name="C1" node="element" />
</field>
</class>
<class name="org.test.C1">
<field name="test1" type="java.lang.String">
<bind-xml name="test1" node="element" />
</field>
<field name="test2" type="java.lang.String">
<bind-xml name="test2" node="element" />
</field>
<field name="test3" type="java.lang.String">
<bind-xml name="test3" node="element" />
</field>
<field name="test4" type="java.lang.String">
<bind-xml name="test4" node="element" />
</field>
</class>
</mapping>
</code>
I am getting all kinds of unmarshalling exceptions. Any help would be
greatly appreciated.
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