JibX: comment mapper une classe et éviter qu'elle soit sortie en tant que noeud XML

Question

J'utilise JibX en tant qu'outil Java Object to XML Binding.

Avec elle, je veux avoir la sortie suivante:

<?xml version="1.0" encoding="UTF-8"?> 
<FEAPService> 
    <Request> 
     <Function>aaa</Function> 
     <SubFunction>bbb</SubFunction> 
     <Operation>ccc</Operation> 
    </Request> 
</FEAPService> 

Mais je reçois ceci:

<?xml version="1.0" encoding="UTF-8"?> 
<FEAPService> 
    <Request> 
     <baseForm> <!-- I DO NOT WANT THIS baseForm TAG --> 
      <Function>aaa</Function> 
      <SubFunction>bbb</SubFunction> 
      <Operation>ccc</Operation> 
     </baseForm> 
    </Request> 
</FEAPService> 

Voici le fichier de liaison JiBX:

<binding name="requestBinding_com_struts_form_SpecificForm"> 
    <mapping name="baseForm" class="com.struts.form.BaseForm"> 
     <value name="Function" field="function" /> 
     <value name="SubFunction" field="subFunction" /> 
     <value name="Operation" field="operation" /> 
    </mapping>  
    <mapping name="FEAPService" class="com.struts.form.SpecificForm" 
     extends="com.struts.form.BaseForm"> 
     <structure name="Request"> 
      <structure map-as="com.struts.form.BaseForm" /> 
     </structure> 
    </mapping> 
</binding> 

I Je suppose que cela pourrait être réalisé en mettant en œuvre mon propre Marshaller, mais je ne suis pas sûr que ce soit le moyen le plus simple.

Answer 1

j'ai réussi à supprimer le nœud XML indésirable, il y a 2 façons:

1. la voie facile: il suffit d'utiliser l'abstract = "true".
2. la manière hardcore: implémenter votre propre marshaller.

---

1ère option:

<mapping class="com.struts.form.BaseForm" abstract="true"> 
     <value name="Function" field="function" /> 
     <value name="SubFunction" field="subFunction" /> 
     <value name="Operation" field="operation" /> 
     <value name="doubleField_part1" field="doubleField" serializer="com.struts.form.BaseForm.doubleFieldDeserializer1" /> 
     <value name="doubleField_part2" field="doubleField" serializer="com.struts.form.BaseForm.doubleFieldDeserializer2" /> 
    </mapping> 

2ème option: implémenter votre propre Marshaller:

public class MyMarshaller implements IMarshaller { 
    private static final String FUNCTION_ELEMENT_NAME = "Function"; 
    private static final String SUB_FUNCTION_ELEMENT_NAME = "SubFunction"; 
    private static final String OPERATION_ELEMENT_NAME = "Operation"; 

    private String m_uri; 
    private int m_index; 
    private String m_name; 

    public MyMarshaller() { 
     m_uri = null; 
     m_index = 0; 

     m_name = "Function"; 
    } 

    public MyMarshaller(String uri, int index, String name) { 
     m_uri = uri; 
     m_index = index; 
     m_name = name; 
    } 

    public boolean isExtension(int index) { 
     return false; 
    } 

    public void marshal(Object obj, IMarshallingContext ictx) 
      throws JiBXException { 

     // make sure the parameters are as expected 
     if (!(obj instanceof BaseForm)) { 
      throw new JiBXException("Invalid object type for marshaller"); 
     } else if (!(ictx instanceof MarshallingContext)) { 
      throw new JiBXException("Invalid object type for marshaller"); 
     } else { 
      // start by generating start tag for container 
      MarshallingContext ctx = (MarshallingContext) ictx; 
      BaseForm formBean = (BaseForm) obj; 

      /* 
      * THIS CODE COULD BE REPEATED FOR ALL FormBean CLASS' ATTRIBUTE USING REFLECTION. 
      * And to control which attributes should be marshalled the attributes could follow special nomeclatures. 
      * Ex. 
      * class FormBean { 
      * String marshallable_Function; 
      * String non_marshallable_Function; 
      * } 
      */ 
      writeTag(ctx, formBean.getFunction(), FUNCTION_ELEMENT_NAME); 
      writeTag(ctx, formBean.getSubFunction(), SUB_FUNCTION_ELEMENT_NAME); 
      writeTag(ctx, formBean.getOperation(), OPERATION_ELEMENT_NAME); 
     } 
    } 

    private void writeTag(MarshallingContext ctx, String value, String entryElementName) 
      throws JiBXException { 
     ctx.startTag(m_index, entryElementName); 
     ctx.closeStartContent(); 
     ctx.content(value); 
     ctx.endTag(m_index, entryElementName); 
    } 
} 

---

Et voici mon binding.xml:

<binding name="requestBinding_com_struts_form_SpecificForm"> 
    <mapping class="com.struts.form.BaseForm" marshaller="example8.MyMarshaller" />   
    <mapping name="FEAPService" class="com.struts.form.SpecificForm"> 
     <structure name="Request"> 
      <structure map-as="com.struts.form.BaseForm" /> 
     </structure> 
    </mapping> 
</binding> 

Answer 2

Il est également important que la base (abstraite) ne pas avoir un nom.