批评我的 JAXB 对象包装器

发布于 2024-08-08 17:44:18 字数 1745 浏览 4 评论 0原文

我有一个关于包装 jaxb 创建的类的问题,并且真的很想听听您的意见。

我的 xsd 看起来有点像:

<ComplexService>
    <ComplexObject1>
        <Element1></Element1>
       <Parameter></Parameter>
    </ComplexObject1>

   <ComplexObject2>
        <Element2> </Element2>
        <Parameter> </Parameter>
   </ComplexObject2>

   ...

  <ComplexObject10>
        <Element10> </Element10>
        <Parameter> </Parameter>
  </ComplexObjec10>

通过 xjc 运行上述 xsd 后创建的类看起来有点像:

public class ComplexService{

ComplexObject1 object1;
ComplexObject2 object2;
...
ComplexObject10 object10;

public static class ComplexObject1{
//Accessors and mutators on ComplexObject1
}

public static class ComplexObject2{
//Accessors and mutators on ComplexObject1
}

...

public static class ComplexObject10{
//Accessors and mutators on ComplexObject1
}

}

现在我想围绕这些 CompleObjects 以及 ComplexService 类创建一个包装器。

public class WrappedComplexObject1{

private final ComplexObject1;

public WrappedComplexObject1(){
complexObject1 = new ComplexObject1();
}

//Delegate calls to the underlying ComplexObject1
public String getServiceName(){
return complexObject1.getServiceName();
}

}

我的问题是:

  1. 上述方式是结束课程的首选方式吗?我的目标是不弄乱 xjc 创建的底层类;提供更好的命名 api(类和方法名称)。

  2. 我还想验证这些对象中的数据。因此我正在考虑使用 装饰器模式进一步包装 WrappedComplexObject1。这是推荐的方法吗?

  3. 最后,xsd 包含元素“Parameter”,其结构相同(仅包含一个值字段)。然而,当 xjc 创建 ComplexService 类时,为每个 ComplexObject 创建了一个新的 Parameter 类。

我应该担心只有一个“参数”包装类,还是应该为每个 ComplexObject 创建一个参数包装类。

任何建议、想法、代码示例都会非常有帮助。

谢谢

I have a question on wrapping a jaxb created class and would really like to hear your inputs.

My xsd looks a bit like:

<ComplexService>
    <ComplexObject1>
        <Element1></Element1>
       <Parameter></Parameter>
    </ComplexObject1>

   <ComplexObject2>
        <Element2> </Element2>
        <Parameter> </Parameter>
   </ComplexObject2>

   ...

  <ComplexObject10>
        <Element10> </Element10>
        <Parameter> </Parameter>
  </ComplexObjec10>

The class created after running the above xsd through xjc looks a bit like :

public class ComplexService{

ComplexObject1 object1;
ComplexObject2 object2;
...
ComplexObject10 object10;

public static class ComplexObject1{
//Accessors and mutators on ComplexObject1
}

public static class ComplexObject2{
//Accessors and mutators on ComplexObject1
}

...

public static class ComplexObject10{
//Accessors and mutators on ComplexObject1
}

}

Now I want to create a wrapper around these CompleObjects as well the ComplexService class.

public class WrappedComplexObject1{

private final ComplexObject1;

public WrappedComplexObject1(){
complexObject1 = new ComplexObject1();
}

//Delegate calls to the underlying ComplexObject1
public String getServiceName(){
return complexObject1.getServiceName();
}

}

My questions are these:

  1. Would the above way be the preferred way to wrap the class? My objectives are to not mess with the underlying classes created by xjc; to provide a better named api (Class as well as method names).

  2. I also want to validate the data in these objects. Therefore I am thinking of using the
    decorator pattern to further wrap WrappedComplexObject1. Would this be a recommended approach?

  3. Lastly, the xsd contains the element "Parameter" which is structurally the same (just contains one value field). However, when xjc created the ComplexService class, for every ComplexObject a new Parameter class was created.

Should I worry about just having one wrapper class for "Parameter" or should I simply create one Parameter wrapper classes per ComplexObject.

Any suggestions, ideas, code samples would be most helpful.

Thanks

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秋日私语 2024-08-15 17:44:18

正如您所看到的,没有任何回应,所以我不确定我的方式是否是“首选”方式。然而,这就是我最终所做的:

//Defined a Wrapper Super class。我封装的所有课程都将由此衍生。

public abstract class WrappedSuperComplexObject{

    protected boolean isValid;
    protected String name;

    public boolean isValid(){
        return isValid;
    }

    public String getName(){
        return name;    
    }

}

//包装产品类

 public class WrappedComplexBondObject extends WrappedSuperComplexObject{ 

    //ComplexObject is an internal object created by JAXB 
    private final JAXBElement<Product> productElement; 

    public WrappedComplexBondObject(JAXBElement<Product> productElement) { 
           this.isValid = true;
           this.name = ProductEnum.BOND;
           this.productElement= productElement; 
    } 

    //Delegate all get/set class to the internal object
    public String getElement1() { 
           return productElement.getElement1(); 
    } 

    public String getParameter1() { 
           return productElement.getParameter1(); 
    } 

    }

// 然后有一个工厂类来验证并创建特定的产品实例。

public WrappedSuperComplexObject createWrappedInstance(JAXBElement<DataDocument> jaxbElement) throws WrappedException{

    DataDocument document = jaxbElement.getValue();
    WrappedValidationResult result = WrappedValidator.validate(document);

    if ( !result.isValid() ){
        throw new WrappedException(result.getMessage());
    }

    JAXBElement<Product> productElem = (JAXBElement<Product>) trade.getProduct();   
    String productName = productElem.getName().getLocalPart().toUpperCase();

    WrappedSuperComplexObject product = null;

     switch( WrappedProductEnum.valueOf(productName) ){

        case BOND:
            product = new WrappedComplexBondObject(productElem);
        break;

        default:
            product = new UnsupportedProduct("Product is not Supported.");
        break;

    }

    return product;     
}

对于问题 3,我最终从主 xsd 中提取了“Parameter”元素,并为参数创建了一个新的 xsd。然后我引用了我的主 xjc 中的“参数”元素。

希望这有帮助。

Well as you can see there were no responses, so I am unsure if my way is the "preferred" way. However, this is what I ended up doing:

//Defined a Wrapper Super class. All the classes I wrapped would descend from this.

public abstract class WrappedSuperComplexObject{

    protected boolean isValid;
    protected String name;

    public boolean isValid(){
        return isValid;
    }

    public String getName(){
        return name;    
    }

}

//Wrapper product class

 public class WrappedComplexBondObject extends WrappedSuperComplexObject{ 

    //ComplexObject is an internal object created by JAXB 
    private final JAXBElement<Product> productElement; 

    public WrappedComplexBondObject(JAXBElement<Product> productElement) { 
           this.isValid = true;
           this.name = ProductEnum.BOND;
           this.productElement= productElement; 
    } 

    //Delegate all get/set class to the internal object
    public String getElement1() { 
           return productElement.getElement1(); 
    } 

    public String getParameter1() { 
           return productElement.getParameter1(); 
    } 

    }

// And then have a factory class that validates and creates the specific product instance.

public WrappedSuperComplexObject createWrappedInstance(JAXBElement<DataDocument> jaxbElement) throws WrappedException{

    DataDocument document = jaxbElement.getValue();
    WrappedValidationResult result = WrappedValidator.validate(document);

    if ( !result.isValid() ){
        throw new WrappedException(result.getMessage());
    }

    JAXBElement<Product> productElem = (JAXBElement<Product>) trade.getProduct();   
    String productName = productElem.getName().getLocalPart().toUpperCase();

    WrappedSuperComplexObject product = null;

     switch( WrappedProductEnum.valueOf(productName) ){

        case BOND:
            product = new WrappedComplexBondObject(productElem);
        break;

        default:
            product = new UnsupportedProduct("Product is not Supported.");
        break;

    }

    return product;     
}

For question 3, I ended up extracting the "Parameter" element from my main xsd and created a new xsd just for Parameter. I then referenced the "Parameter" element from my main xjc.

Hope this helps.

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