Tables

Unbounded Occurring Elements in XSD

Neither XSD nor Java has an explicit table type. However, in XSD you can define elements so that there is no limit to how often they may occur (more information: Data Types in the Enterprise Services Repository ). For example, assume you require a data type 
staff
, which you can use to select a group of colleagues as members of staff and assign them a manager. The following table reflects the definition of this data type in the XSD editor:

Definition of an Unbounded XSD Element Within a Structure

Structure Category Type Occurrence Description

staff

Complex Type

      

[-] manager

Element

  

1

staff manager
 

name

Element

xsd:string

1

  
 

birthday

Element

xsd:date

1

  

[-] employee

Element

  

1..unbounded

staff members
 

name

Element

xsd:string

1

  
 

birthday

Element

xsd:date

1

  
According to this definition, the element 
employee
can occur more than once in the corresponding XML schema.

Conversion to Java Classes

Java proxy generation in the ES Builder generates the class Staff_Type for the data type staff. This class can be reused just like the data type in the Enterprise Services Repository. The class provides two alternatives for accessing the values of the element employee that can occur infinitely in the message:

  • The method getEmployee() returns an array type Staff_Type.Employee_Type[]
  • The method get_as_listEmployee() returns an object of type Staff_Type.Employee_List for accessing the values with list methods.

    The class Staff_Type contains the inner class Staff_Type.Employee_List for accessing with list methods as well as the inner classes Staff_Type.Employee_Type and Staff_Type.Manager_Type.

Class Hierarchy with Public Methods in UML Notation