Java – Parsing XML file list elements using simple XML in Android

I

need to parse a large xml file in SImple XML (I really want to use Simple XML). I create objects using XSD and convert them from JAXB-specific objects to SimpleXML-specific annotated objects.

The XML looks like this:

    <House>
      <MainLevel Name="~#editRoom" IsHidden="false">
        <ChildLevel Name="Television" Category="Livingroom">
          <string>TestRoom</string>
        </ChildLevel>
         <ChildLevel Name="Chair" Category="Livingroom">
          <string>TestRoom</string>
        </ChildLevel>
         <ChildLevel Name="Table">
          <string>TestRoom</string>
        </ChildLevel>
         <ChildLevel Name="ChamberName" Category="Livingroom">
          <string>TestRoom</string>
        </ChildLevel>
          <ChildLevel Name="ChamberName" Category="Bathroom">
          <string>BathTub</string>
        </ChildLevel>
         <ChildLevel Name="Door", Category="DiningRoom">
          <boolean>isOpen</boolean>
        </ChildLevel>
     </MainLevel>
    <MainLevel Name="~#editRoom" IsHidden="false">
        <ChildLevel Name="Television" Category="Livingroom">
          <string>TestRoom</string>
        </ChildLevel>
         <ChildLevel Name="Chair" Category="Livingroom">
          <string>TestRoom</string>
        </ChildLevel>
         <ChildLevel Name="Table" Category="Livingroom">
          <string>TestRoom</string>
        </ChildLevel>
         <ChildLevel Name="ChamberName" Category="Livingroom">
          <string>TestRoom</string>
        </ChildLevel>
          <ChildLevel Name="ChamberName" Category="Bathroom">
          <string>BathTub</string>
        </ChildLevel>
         <ChildLevel Name="Door">
          <boolean>isOpen</boolean>
        </ChildLevel>
     </MainLevel>
</House>

What do you suggest. Please help. Thank you.

You’d better write 3 classes:

1. The House class, (= root) contains the (inline) list of MainLevels
2. The MainLevel class, which contains an (inline) list of all ChildLevels
3. The ChildLevel class, which contains values

Here is some pseudocode :

@Root(...)
public class House
{
    @ElementList(inline = true, ...)
    private List<MainLevel> levels;

// ...
}

public class MainLevel
{
    @Attribute(name = "Name")
    private String name;
    @Attribute(name = "IsHidden")
    private bool hidden;
    @ElementList(inline = true, ...)
    private List<ChildLevel> childLevels;

// ...
}

public class ChildLevel
{
    @Attribute(name = "Name")
    private String name;
    @Attribute(name = "Category", required = false)
    private String category;

// ...
}

Since ChildLevel can be of different types, you must be aware of this. Either implement all types and mark them as unwanted, or create subclasses.