You are welcome.
Werner
Georg Federmann wrote:
> Hi Werner,
>
> thank you very much, that's exactly what I was looking for.
> Wow, the solution is even very clear and keeping things simple.
>
> best regards,
> Georg
>
> On Wed, Jun 11, 2008 at 11:24 AM, Werner Guttmann <[EMAIL PROTECTED]>
> wrote:
>
>> Georg,
>>
>> the following mapping does the trick (for me).
>>
>> <mapping>
>> <class name="xml.georg2.Data">
>> <map-to xml="data" />
>> <field name="data" type="xml.georg2.A" collection="array">
>> <bind-xml name="a" node="element" />
>> </field>
>> </class>
>> <class name="xml.georg2.A">
>> <field name="field" type="xml.georg2.B" container="true"
>> collection="array">
>> <bind-xml name="value" node="element" />
>> </field>
>> <field name="id" type="xml.georg2.C" container="true">
>> <bind-xml name="c" />
>> </field>
>> </class>
>> <class name="xml.georg2.B">
>> <field name="value" type="integer" />
>> </class>
>> <class name="xml.georg2.C">
>> <field name="id" type="java.lang.String">
>> <bind-xml name="id" node="attribute"/>
>> </field>
>> <field name="name" type="java.lang.String">
>> <bind-xml name="name" node="attribute"/>
>> </field>
>> </class>
>> </mapping>
>>
>> Regards
>> Werner
>>
>> Georg Federmann wrote:
>>> Hello Werner,
>>>
>>> sorry, my mistake! The example data model was incorrect. In fact, the A
>> type
>>> has multiple references to data carrying objects of type B and one
>> reference
>>> to one object of type C, carrying various informations identifying the A
>>> type object. So there is one C object for each A object, and the fields
>> of
>>> this C object shall be used for the attributes of the <a> element.
>>>
>>> Sorry for the false data model before. For more clearance I've added some
>>> example data. I tried to keep the example data as concise as possible.
>>>
>>> thank you for your help,
>>> best regards, Georg
>>>
>>> the mapping xml:
>>> <mapping>
>>> <class name="ab.Data">
>>> <map-to xml="data"/>
>>> <field name="data" type="ab.A" collection="array">
>>> <bind-xml name="a" node="element"/>
>>> </field>
>>> </class>
>>> <class name="ab.A">
>>> <field name="field" type="ab.B" container="true"
>> collection="array">
>>> <bind-xml name="value" node="element"/>
>>> </field>
>>> <field name="id" type="ab.C" container="true">
>>> <bind-xml name="id" node="attribute"/>
>>> </field>
>>> </class>
>>> <class name="ab.B">
>>> <field name="value" type="integer"/>
>>> </class>
>>> <class name="ab.C">
>>> <field name="id" type="java.lang.String">
>>> <bind-xml name="id"/>
>>> </field>
>>> </class>
>>> </mapping>
>>>
>>> Castor's result:
>>> <data>
>>> <a id="[EMAIL PROTECTED]">
>>> <value>15</value>
>>> <value>8</value>
>>> </a>
>>> <a id="[EMAIL PROTECTED]">
>>> <value>12</value>
>>> <value>17</value>
>>> <value>8</value>
>>> <value>3</value>
>>> </a>
>>> </data>
>>>
>>> how I would need it:
>>> <data>
>>> <a id="C1" name="series1">
>>> <value>15</value>
>>> <value>8</value>
>>> </a>
>>> <a id="C2" name="series2">
>>> <value>12</value>
>>> <value>17</value>
>>> <value>8</value>
>>> <value>3</value>
>>> </a>
>>> </data>
>>>
>>> the data model:
>>> public class A {
>>> private B[] field;
>>> private C id;
>>>
>>> public A () {};
>>>
>>> public A ( B[] bs, C id ){
>>> setField ( bs );
>>> setId ( id );
>>> }
>>>
>>> public B[] getField () {
>>> return field;
>>> }
>>>
>>> public void setField ( B[] field ) {
>>> this.field = field;
>>> }
>>>
>>> public C getId () {
>>> return id;
>>> }
>>>
>>> public void setId ( C id ) {
>>> this.id = id;
>>> }
>>> }
>>>
>>> public class C {
>>> private String id;
>>> private String name;
>>>
>>> public C (){}
>>>
>>> public C ( String id, String name ){
>>> setId ( id );
>>> setName ( name );
>>> }
>>>
>>> public String getId () {
>>> return id;
>>> }
>>> public void setId ( String id ) {
>>> this.id = id;
>>> }
>>> public String getName () {
>>> return name;
>>> }
>>> public void setName ( String name ) {
>>> this.name = name;
>>> }
>>> }
>>>
>>> public class B {
>>> private String id;
>>> private int value;
>>>
>>> public B (){}
>>>
>>> public B ( int val, String id ){
>>> setId ( id );
>>> setValue ( val );
>>> }
>>>
>>> public String getId () {
>>> return id;
>>> }
>>>
>>> public void setId ( String id ) {
>>> this.id = id;
>>> }
>>>
>>> public int getValue () {
>>> return value;
>>> }
>>>
>>> public void setValue ( int value ) {
>>> this.value = value;
>>> }
>>> }
>>>
>>> public class MarshalTest {
>>> public static void main ( String[] args ) throws IOException,
>>> MappingException, MarshalException, ValidationException {
>>> Mapping mapping = new Mapping ();
>>> mapping.loadMapping ( "resources/abMapping.xml" );
>>>
>>> B[] b1 = new B[] { new B ( 15, "val1" ), new B ( 8, "val2" ) };
>>> B[] b2 = new B[] { new B ( 12, "val3" ), new B ( 17, "val4" ),
>> new B
>>> ( 8, "val5" ), new B ( 3, "val6" ) };
>>> C series1 = new C ( "C1", "series1" );
>>> C series2 = new C ( "C2", "series2" );
>>> A[] a1 = new A[] { new A ( b1, series1 ), new A ( b2, series2 )
>> };
>>> Data data = new Data ( a1 );
>>>
>>> StringWriter writer = new StringWriter ();
>>> Marshaller marshaller = new Marshaller ( writer );
>>> marshaller.setMapping ( mapping );
>>> marshaller.marshal ( data );
>>>
>>> System.out.println ( writer.toString () );
>>> Writer output = new FileWriter ( new File (
>> "resources/abResult.xml"
>>> ) );
>>> output.write ( writer.toString () );
>>> output.flush ();
>>> output.close ();
>>> }
>>> }
>>>
>>> On Mon, Jun 9, 2008 at 12:54 PM, Werner Guttmann <
>> [EMAIL PROTECTED]>
>>> wrote:
>>>
>>>> Personally, I would move the 'id' attribute to the A class, as that's
>>>> where it belongs to (semantically).
>>>>
>>>> Werner
>>>>
>>>> Werner Guttmann wrote:
>>>>> Georg,
>>>>>
>>>>> I don't think it's possible to map a 'multi-valued' field such as the
>>>>> 'id' field of B to a single occurence within the XML output.
>>>>>
>>>>> Werner
>>>>>
>>>>> Georg Federmann wrote:
>>>>>> Hello Werner,
>>>>>>
>>>>>> thanks a lot for your reply!
>>>>>> Here is the mapping as I am using it right now:
>>>>>>
>>>>>> <mapping>
>>>>>> <class name="ab.Data">
>>>>>> <map-to xml="data"/>
>>>>>> <field name="data" type="ab.A" collection="array">
>>>>>> <bind-xml name="a" node="element"/>
>>>>>> </field>
>>>>>> </class>
>>>>>>
>>>>>> <class name="ab.A">
>>>>>> <field name="field" type="ab.B" container="true"
>>>> collection="array">
>>>>>> <bind-xml name="value" node="element"/>
>>>>>> </field>
>>>>>> </class>
>>>>>>
>>>>>> <class name="ab.B">
>>>>>> <field name="value" type="integer"/>
>>>>>> </class>
>>>>>> </mapping>
>>>>>>
>>>>>> and this is the result generated by Castor:
>>>>>>
>>>>>> <data>
>>>>>> <a>
>>>>>> <value>15</value>
>>>>>> <value>8</value>
>>>>>> </a>
>>>>>> <a>
>>>>>> <value>12</value>
>>>>>> <value>17</value>
>>>>>> <value>8</value>
>>>>>> <value>3</value>
>>>>>> </a>
>>>>>> </data>
>>>>>>
>>>>>> this is as far as I got, and it's already very beautiful. But the
>>>> crucial
>>>>>> step is to get the "id" field of the B type into the "id" attribute of
>>>> the
>>>>>> <a> element like in
>>>>>>
>>>>>> <data>
>>>>>> <a id="series1">
>>>>>> <value>15</value>
>>>>>> <value>8</value>
>>>>>> </a>
>>>>>> <a id="series2">
>>>>>> <value>12</value>
>>>>>> <value>17</value>
>>>>>> <value>8</value>
>>>>>> <value>3</value>
>>>>>> </a>
>>>>>> </data>
>>>>>>
>>>>>> I'm very grateful for any help here!
>>>>>>
>>>>>> best regards, Georg
>>>>>>
>>>>>> I've added the sources of the java types, maybe it's of any help ...
>>>>>>
>>>>>> package ab;
>>>>>> public class A {
>>>>>> private B[] field;
>>>>>>
>>>>>> public A () {};
>>>>>>
>>>>>> public A ( B[] bs ){
>>>>>> setField ( bs );
>>>>>> }
>>>>>>
>>>>>> public B[] getField () {
>>>>>> return field;
>>>>>> }
>>>>>>
>>>>>> public void setField ( B[] field ) {
>>>>>> this.field = field;
>>>>>> }
>>>>>> }
>>>>>>
>>>>>> package ab;
>>>>>> public class B {
>>>>>> private String id;
>>>>>> private int value;
>>>>>>
>>>>>> public B (){}
>>>>>>
>>>>>> public B ( int val, String id ){
>>>>>> setId ( id );
>>>>>> setValue ( val );
>>>>>> }
>>>>>>
>>>>>> public String getId () {
>>>>>> return id;
>>>>>> }
>>>>>>
>>>>>> public void setId ( String id ) {
>>>>>> this.id = id;
>>>>>> }
>>>>>>
>>>>>> public int getValue () {
>>>>>> return value;
>>>>>> }
>>>>>>
>>>>>> public void setValue ( int value ) {
>>>>>> this.value = value;
>>>>>> }
>>>>>> }
>>>>>>
>>>>>> package ab;
>>>>>> public class Data {
>>>>>> private A[] data;
>>>>>>
>>>>>> public Data (){};
>>>>>>
>>>>>> public Data ( A[] data ){
>>>>>> setData ( data );
>>>>>> }
>>>>>>
>>>>>> public A[] getData () {
>>>>>> return data;
>>>>>> }
>>>>>>
>>>>>> public void setData ( A[] data ) {
>>>>>> this.data = data;
>>>>>> }
>>>>>> }
>>>>>>
>>>>>> package ab;
>>>>>> public class MarshalTest {
>>>>>>
>>>>>> public static void main ( String[] args ) throws IOException,
>>>>>> MappingException, MarshalException, ValidationException {
>>>>>> Mapping mapping = new Mapping ();
>>>>>> mapping.loadMapping ( "resources/abMapping.xml" );
>>>>>>
>>>>>> B[] b1 = new B[] { new B ( 15, "series1" ), new B ( 8,
>> "series1"
>>>> )
>>>>>> };
>>>>>> B[] b2 = new B[] { new B ( 12, "series2" ), new B ( 17,
>>>> "series2" ),
>>>>>> new B ( 8, "series2" ), new B ( 3, "series2" ) };
>>>>>> A[] a1 = new A[] { new A ( b1 ), new A ( b2 ) };
>>>>>> Data data = new Data ( a1 );
>>>>>>
>>>>>> StringWriter writer = new StringWriter ();
>>>>>> Marshaller marshaller = new Marshaller ( writer );
>>>>>> marshaller.setMapping ( mapping );
>>>>>> marshaller.marshal ( data );
>>>>>>
>>>>>> System.out.println ( writer.toString () );
>>>>>> Writer output = new FileWriter ( new File (
>>>> "resources/abResult.xml"
>>>>>> ) );
>>>>>> output.write ( writer.toString () );
>>>>>> output.flush ();
>>>>>> output.close ();
>>>>>> }
>>>>>> }
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Mon, Jun 9, 2008 at 10:13 AM, Werner Guttmann <
>>>> [EMAIL PROTECTED]>
>>>>>> wrote:
>>>>>>
>>>>>>> Georg,
>>>>>>>
>>>>>>> what does your mapping file look like right now ? How have you tried
>> to
>>>>>>> map A and Bs ?
>>>>>>>
>>>>>>> Having said that, I guess this might be achievable, but I am not 100%
>>>>>>> sure. Basically, you will have to use the container attribute (set to
>>>>>>> false) on the class mapping for 'B', so that no <B> tags will be
>>>>>>> rendered. Whether this will work with your additional requirement on
>>>> the
>>>>>>> aggregation by the value of the id attribute of B, not sure.
>>>>>>>
>>>>>>> Regards
>>>>>>> Werner
>>>>>>>
>>>>>>> Georg Federmann wrote:
>>>>>>>> Hi all,
>>>>>>>>
>>>>>>>> I need to marshal a given object model to a given xml, but I can't
>>>>>>> persuade
>>>>>>>> Castor to do as needed.
>>>>>>>> This is the problem:
>>>>>>>> I have two java types A and B where B has a field "id" and A holds
>>>>>>>> references to B. Now I need the field "id" of B as an attribute of
>> the
>>>>>>> xml
>>>>>>>> element <a>, that represents A.
>>>>>>>>
>>>>>>>> class A{
>>>>>>>> B[] field;
>>>>>>>> }
>>>>>>>>
>>>>>>>> class B{
>>>>>>>> String id;
>>>>>>>> int value;
>>>>>>>> }
>>>>>>>>
>>>>>>>> a collection of objects of type A shall be marshalled to some xml
>> like
>>>>>>> this:
>>>>>>>> <data>
>>>>>>>> <a id="b1">
>>>>>>>> <value>15</value>
>>>>>>>> <value>8</value>
>>>>>>>> </a>
>>>>>>>> <a id="b2">
>>>>>>>> <value>12</value>
>>>>>>>> <value>17</value>
>>>>>>>> <value>8</value>
>>>>>>>> <value>3</value>
>>>>>>>> </a>
>>>>>>>> </data>
>>>>>>>>
>>>>>>>> Somehow I can't see, how I can split the fields of the B type into
>> an
>>>>>>>> attribute "id" of the <a> element and a child element <value> of the
>>>> <a>
>>>>>>>> element.
>>>>>>>>
>>>>>>>>
>>>>>>>> I appreciate any help
>>>>>>>>
>>>>>>>> best regards, Georg
>>>>>>>>
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>>>>>>>
>>>>>>>
>>>>>>>
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