Adding Data Units to a Contract

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Adding Data Units to a Contract

Depending on how you choose to create your WSDL contract, creating new data definitions requires varying amounts of knowledge. The FUSE Services Framework GUI tools provide a number of aids for describing data types using XML Schema. Other XML editors offer different levels of assistance. Regardless of the editor you choose, it is a good idea to have some knowledge about what the resulting contract should look like.

Procedure

Defining the data used in a WSDL contract involves the following steps:

Determine all the data units used in the interface described by the contract.
Create a types element in your contract.
Create a schema element, shown in Example 2.1, as a child of the type element.
The targetNamespace attribute specifies the namespace under which new data types are defined. The remaining entries should not be changed.
Example 2.1. Schema Entry for a WSDL Contract
```
<schema targetNamespace="http://schemas.iona.com/bank.idl"
        xmlns="http://www.w3.org/2001/XMLSchema"
        xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/">
```
For each complex type that is a collection of elements, define the data type using a complexType element. See Defining Data Structures.
For each array, define the data type using a complexType element. See Defining Arrays.
For each complex type that is derived from a simple type, define the data type using a simpleType element. See Defining Types by Restriction.
For each enumerated type, define the data type using a simpleType element. See Defining Enumerated Types.
For each element, define it using an element element. See Defining Elements.