xjc：覆盖xs：simpleType定义 [英] xjc: override xs:simpleType definition

问题描述

我正在使用 xjc 为Java类编译一组XSD。我希望能够覆盖给定简单类型的数据类型定义。 XSD片段是：

I am compiling a set of XSDs to Java classes using xjc. I would like to be able to override the data type definition for a given simple type. The XSD snippet is:

<xs:simpleType name="CPT-DateTime">
    <xs:annotation>
        <xs:appinfo>Can be specified as a integer number or as xs:dateTime</xs:appinfo>
    </xs:annotation>
    <xs:union memberTypes="xs:unsignedLong xs:dateTime"/>
</xs:simpleType>

在 CPT-DateTime的元素中产生（不足为奇） / code>在生成的Java类中将类型定义为 String ，例如

public class CcReportTrainInitialization {
...
    @XmlElement(required = true)
    protected String time;
...
    public String getTime() {
        return time;
    }

    public void setTime(String value) {
        this.time = value;
    }
...

我想要的数据类型是 time （在此示例中）是特定于日期时间的类型，例如 XMLGregorianCalendar 或类似的东西：

What I would like is for the datatype of time (in this example) to be a date-time specific type, e.g. XMLGregorianCalendar or something like that:

public class CcReportTrainInitialization {
...
    @XmlElement(required = true)
    protected XMLGregorianCalendar time;
...
    public XMLGregorianCalendar getTime() {
        return time;
    }

    public void setTime(XMLGregorianCalendar value) {
        this.time = value;
    }
...

这可能吗？

我一直在尝试使用绑定文件，但我不确定它是否可行。建议？

I've been experimenting with a binding file but I'm not sure it's even possible to do. Suggestions?

推荐答案

其他选项包括：

• jaxb：baseType


• jaxb：javaType


• xjc：javaType - 如 jaxb：javaType 但允许指定适配器类而不是 unmarshal / marshal 方法。

• jaxb:baseType
• jaxb:javaType
• xjc:javaType - like jaxb:javaType but allows specifying the adapter class instead of unmarshal/marshal methods.

我实际上认为 jaxb：class / @ ref 自定义不适合简单类型，因为这使它成为类类型。这对于内部XJC模型很重要，一些XJC插件可能会错误地处理你的类型。

I would actually argue that jaxb:class/@ref customization is not right for the simple type as this makes it a "class" type. This matters for the internal XJC model, some of the XJC plugins may handle your type incorrectly.

我认为你应该使用 jaxb：javaType 这里。尝试：

I think you should use jaxb:javaType here. Try:

<?xml version="1.0" encoding="UTF-8"?>
<jxb:bindings jxb:version="2.1" xmlns:jxb="http://java.sun.com/xml/ns/jaxb" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tns="urn:your-target-namespace">
  <jxb:bindings node="/xs:schema" schemaLocation="../TCIP_4_0_0_Final.xsd">
    <jxb:globalBindings>
      <jxb:javaType name="javax.xml.datatype.XMLGregorianCalendar" xmlType="tns:CPT-DateTime"/>
    </jxb:globalBindings>
  </jxb:bindings>
</jxb:bindings>

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