Question

我正在尝试从DTD生成的单个~7,000行cXML模式文件生成代码。我已经能够解决一些与xjc自定义的冲突，但最后一个让我感到难过。

我尝试过类和工厂方法自定义但没有成功。

当我尝试应用工厂方法自定义时，我结束了以下消息：

  [xjc] [ERROR] compiler was unable to honor this class customization. It is attached to a wrong place, or its inconsistent with other bindings.

其他人遇到过这个问题，并且已经能够解决它。（This link很有帮助。）

我想知道我的问题是否与元素的抽象性质有关。

这种绕道令人沮丧，任何帮助都会非常感激。

以下是架构中的片段：

  <xs:element name="cxml.payment" abstract="true">
    <xs:complexType> <!-- Line 2477 -->
      <xs:sequence>
        <xs:element minOccurs="0" ref="PostalAddress"/>
      </xs:sequence>
      <xs:attributeGroup ref="PCard.attlist"/>
    </xs:complexType>
  </xs:element>
  <xs:complexType name="cxml.payment">
    <xs:sequence>
      <xs:element ref="cxml.payment"/>
    </xs:sequence>
  </xs:complexType>

  <xs:element name="Payment" type="cxml.payment" />

 <xs:element name="PCard" substitutionGroup="cxml.payment"/>

  <xs:attributeGroup name="PCard.attlist">
    <xs:attribute name="number" use="required" type="number"/>
    <xs:attribute name="expiration" use="required" type="date"/>
    <xs:attribute name="name" type="string"/>
  </xs:attributeGroup>

以下是原始错误：

> compile:
>      [echo] Compiling the schema...
>       [xjc] Compiling file:/..cXML.xsd
>       [xjc] [ERROR] A class/interface with the same name "cXML.CxmlPayment" is already in use. Use a class customization to
> resolve this conflict.
>       [xjc]   line 2477 of file:..cXML.xsd
>       [xjc]
>       [xjc] [ERROR] (Relevant to above error) another "CxmlPayment" is generated from here.
>       [xjc]   line 2477 of file:..cXML.xsd
>       [xjc]
>       [xjc] [ERROR] (Relevant to above error) This confusing error happened most likely because the schema uses a technique called
> "chameleon schema", which causes a single definition to be loaded
> multiple times into different namespaces. See
> http://forums.java.net/jive/thread.jspa?threadID=18631 for more about
> this.
>       [xjc]   line 2477 of file:..cXML.xsd
>       [xjc]
>       [xjc] [ERROR] Two declarations cause a collision in the ObjectFactory class.
>       [xjc]   line 2477 of file:..cXML.xsd
>       [xjc]
>       [xjc] [ERROR] (Related to above error) This is the other declaration.
>       [xjc]   line 2477 of file:..cXML.xsd
>       [xjc]
>       [xjc] failure in the XJC task. Use the Ant -verbose switch for more details

Answer 1

当然，我应该想通了。我一发布问题解决方案就出现了。

根据JAXB "default binding rules"，绑定编译器尝试为每个Element创建一个Java类，并且每个都命名为ComplexType。引起冲突的原因是两个名称都使用了cxml.payment。

在这种情况下，只需要这个简单的类定制：

 <jxb:bindings node="//xs:element[@name='cxml.payment']/xs:complexType">
     <jxb:class name="CxmlInnerPaymentType" />
 </jxb:bindings>

课程是密切关注xjc错误消息中的行号。在这种情况下，他们一直指着我2477行。

xjc：无法兑现类自定义

1 个答案: