What you need is a marshaller/unmarshaller for the animal tags. A field
in the animal class holds the tag name. PFA the relevant artifacts.
This way you can add an animal to the zoo without adding any classes.
What do you think?
regards
Varghese C V
binding.xml
---------------
<binding>
<mapping name="ResponseObject" class="zoo.ResponseObject">
<collection field="animals"
item-type="zoo.Animal"
factory="org.jibx.runtime.Utility.arrayListFactory">
<structure map-as="zoo.Animal"/> </collection>
</mapping>
<mapping class="zoo.Animal" marshaller="zoo.AnimalMapper"
unmarshaller="zoo.AnimalMapper"/>
</binding>
Animal.java
---------------
package zoo;
public class Animal {
public String tagName; public String name;
public String typeCode;
public Animal() {
}
public Animal(String tagName) {
this.tagName = tagName;
}
}
ResponseObject.java
-----------------------
package zoo;
import java.util.ArrayList;
import java.util.List;
public class ResponseObject {
List animals = new ArrayList();
}
AnimalMapper.java
----------------------
package zoo;
import org.jibx.runtime.IAliasable;
import org.jibx.runtime.IMarshaller;
import org.jibx.runtime.IMarshallingContext;
import org.jibx.runtime.IUnmarshaller;
import org.jibx.runtime.IUnmarshallingContext;
import org.jibx.runtime.JiBXException;
import org.jibx.runtime.impl.MarshallingContext;
import org.jibx.runtime.impl.UnmarshallingContext;
public class AnimalMapper implements IMarshaller, IUnmarshaller,
IAliasable {
private static final String ANIMAL_ATTRIBUTE_TYPECODE = "tp_cd";
private static final String ANIMAL_ATTRIBUTE_NAME = "name";
private String m_uri;
private int m_index;
public AnimalMapper() {
m_uri = null;
m_index = 0;
}
public boolean isExtension(int index) {
return false;
}
public void marshal(Object obj, IMarshallingContext ictx) throws
JiBXException {
if (!(obj instanceof Animal)) {
throw new JiBXException("Invalid object type for marshaller");
} else if (!(ictx instanceof MarshallingContext)) {
throw new JiBXException("Invalid object type for marshaller");
} else {
MarshallingContext ctx = (MarshallingContext) ictx;
Animal animal = (Animal) obj;
ctx.startTag(m_index, animal.tagName);
ctx.startTag(m_index,
ANIMAL_ATTRIBUTE_NAME).content(animal.name).endTag(m_index,
ANIMAL_ATTRIBUTE_NAME);
ctx.startTag(m_index,
ANIMAL_ATTRIBUTE_TYPECODE).content(animal.typeCode).endTag(m_index,
ANIMAL_ATTRIBUTE_TYPECODE);
ctx.endTag(m_index, animal.tagName);
}
}
public boolean isPresent(IUnmarshallingContext ctx) throws
JiBXException {
return !ctx.isEnd();
}
public Object unmarshal(Object obj, IUnmarshallingContext ictx)
throws JiBXException {
UnmarshallingContext ctx = (UnmarshallingContext)ictx;
String tagName = ctx.toStart();
Animal animal = (Animal) obj;
if (animal == null) {
animal = new Animal(tagName);
}
ctx.parsePastStartTag(m_uri, tagName);
String name = ctx.parseElementText(m_uri, ANIMAL_ATTRIBUTE_NAME);
String typeCode = ctx.parseElementText(m_uri,
ANIMAL_ATTRIBUTE_TYPECODE);
animal.name = name;
animal.typeCode = typeCode;
ctx.parsePastEndTag(m_uri, tagName);
return animal;
}
}
[EMAIL PROTECTED] wrote:
>
> List users,
>
> I'm having an issue with trying to map a collection of
> (sorta)-abstract objects. The issue is that, in the XML that I'm
> unmarshalling, the overall structure is
> the same, but the element name will differ. Here's an example:
>
> <ResponseObject>
> <CatTable>
> <name>Boots</name>
> <tp_cd>1001</tp_cd>
> </CatTable>
> <CatTable>
> <name>Fluffy</name>
> <tp_cd>1002</tp_cd>
> </CatTable>
> .....
> </ResponseObject>
>
> The next XML I will unmarshall (from the same service call) is like this:
>
> <ResponseObject>
> <DogTable>
> <name>Rex</name>
> <tp_cd>1003</tp_cd>
> </DogTable>
> <DogTable>
> <name>King</name>
> <tp_cd>1004</tp_cd>
> </DogTable>
> .....
> </ResponseObject>
>
> All I really need is a class for Animal, with no differentiation
> between cats, dogs, beavers, etc., and there are over a hundred
> animals. If I have an Animal class, like this:
>
> public class Animal {
> private String name;
> private String typeCode;
> }
>
> I want to unmarshall to an Animal object, since that is all I need in
> this case. There is NO Cat or Dog class. All responses will look the
> same with the exception of the element name (like CatTable, DogTable).
>
> If I define my unmarshalling XML like this:
>
> <mapping name="ResponseObject" class="ResponseObject">
> <collection field="animals" item-type="Animal" />
> </mapping>
>
> I can then do the following for just a single animal:
>
> <mapping name="CatTable" class="Animal" abstract="true">
> <value name="name" field="typeValue" usage="required"/>
> <value name="tp_cd" field="typeCode" usage="required"/>
> </mapping>
>
> If I try to define a second animal:
>
> <mapping name="DogTable" class="Animal" abstract="true">
> <value name="name" field="typeValue" usage="required"/>
> <value name="tp_cd" field="typeCode" usage="required"/>
> </mapping>
>
> I get an error because the Animal class is multiply declared.
>
> The bottom line is that there seems to be no way to have an element
> name map to anything in JiBX without actually having a class that it
> concretely maps to. I have tried many combinations of things to get
> this to work, and can't find a solution. What I don't want to have to
> do is create classes like this:
>
> public class Dog extends Animal {}
>
> public class Cat extends Animal{}
>
> and have hundreds of class files.
>
> I have also tried:
>
> <mapping class="Animal" abstract="true" type-name="lookup"
> >
> <value name="name" field="name" usage="required"/>
> <value name="tp_cd" field="typeCode" usage="required"/>
> </mapping>
> <mapping name="CatTable" map-as="lookup" />
> <mapping name="DogTable" map-as="lookup" />
>
> with no success. I have tried many other variants, all with new
> interesting errors to read up on.
>
> One of the justifications for this is that I want to be able to add a
> new Animal to my zoo without creating a class for it, so that through
> JiBX and Spring alone I can configure my app. The actual XML and
> objects are not those you see above, but the example is analogous and
> simple.
>
> I appreciate any thoughts on this.
>
> Brian
> ------------------------------------------------------------------------
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Splunk Inc.
> Still grepping through log files to find problems? Stop.
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>
> _______________________________________________
> jibx-users mailing list
> jibx-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/jibx-users
>
[EMAIL PROTECTED] wrote:
>
> List users,
>
> I'm having an issue with trying to map a collection of
> (sorta)-abstract objects. The issue is that, in the XML that I'm
> unmarshalling, the overall structure is
> the same, but the element name will differ. Here's an example:
>
> <ResponseObject>
> <CatTable>
> <name>Boots</name>
> <tp_cd>1001</tp_cd>
> </CatTable>
> <CatTable>
> <name>Fluffy</name>
> <tp_cd>1002</tp_cd>
> </CatTable>
> .....
> </ResponseObject>
>
> The next XML I will unmarshall (from the same service call) is like this:
>
> <ResponseObject>
> <DogTable>
> <name>Rex</name>
> <tp_cd>1003</tp_cd>
> </DogTable>
> <DogTable>
> <name>King</name>
> <tp_cd>1004</tp_cd>
> </DogTable>
> .....
> </ResponseObject>
>
> All I really need is a class for Animal, with no differentiation
> between cats, dogs, beavers, etc., and there are over a hundred
> animals. If I have an Animal class, like this:
>
> public class Animal {
> private String name;
> private String typeCode;
> }
>
> I want to unmarshall to an Animal object, since that is all I need in
> this case. There is NO Cat or Dog class. All responses will look the
> same with the exception of the element name (like CatTable, DogTable).
>
> If I define my unmarshalling XML like this:
>
> <mapping name="ResponseObject" class="ResponseObject">
> <collection field="animals" item-type="Animal" />
> </mapping>
>
> I can then do the following for just a single animal:
>
> <mapping name="CatTable" class="Animal" abstract="true">
> <value name="name" field="typeValue" usage="required"/>
> <value name="tp_cd" field="typeCode" usage="required"/>
> </mapping>
>
> If I try to define a second animal:
>
> <mapping name="DogTable" class="Animal" abstract="true">
> <value name="name" field="typeValue" usage="required"/>
> <value name="tp_cd" field="typeCode" usage="required"/>
> </mapping>
>
> I get an error because the Animal class is multiply declared.
>
> The bottom line is that there seems to be no way to have an element
> name map to anything in JiBX without actually having a class that it
> concretely maps to. I have tried many combinations of things to get
> this to work, and can't find a solution. What I don't want to have to
> do is create classes like this:
>
> public class Dog extends Animal {}
>
> public class Cat extends Animal{}
>
> and have hundreds of class files.
>
> I have also tried:
>
> <mapping class="Animal" abstract="true" type-name="lookup"
> >
> <value name="name" field="name" usage="required"/>
> <value name="tp_cd" field="typeCode" usage="required"/>
> </mapping>
> <mapping name="CatTable" map-as="lookup" />
> <mapping name="DogTable" map-as="lookup" />
>
> with no success. I have tried many other variants, all with new
> interesting errors to read up on.
>
> One of the justifications for this is that I want to be able to add a
> new Animal to my zoo without creating a class for it, so that through
> JiBX and Spring alone I can configure my app. The actual XML and
> objects are not those you see above, but the example is analogous and
> simple.
>
> I appreciate any thoughts on this.
>
> Brian
> ------------------------------------------------------------------------
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Splunk Inc.
> Still grepping through log files to find problems? Stop.
> Now Search log events and configuration files using AJAX and a browser.
> Download your FREE copy of Splunk now >> http://get.splunk.com/
> ------------------------------------------------------------------------
>
> _______________________________________________
> jibx-users mailing list
> jibx-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/jibx-users
>
-------------------------------------------------------------------------
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Still grepping through log files to find problems? Stop.
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