12c SOA - how to specify Inline schemas within a WSDL file

Inline Schemas are a way of including the schema within a WSDL file rather than specifying that it be imported.

There are two ways of including a schema within a WSDL file.

• One way is to specify that it be imported; that is, the schema is a separate file. Its highly reusable.
• Another way, called inline schemas, is to include the schema inline with the file. Its only used in one WSDL file and to use in another WSDL, have to copy the inline schema from the existing WSDL file to the new WSDL file

Suppose we have the following XSD.

Simple Dept Schema:
<?xml version="1.0" encoding="windows-1252" ?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://www.dept.poc"
            targetNamespace="http://www.dept.poc" elementFormDefault="qualified">
  <xsd:element name="Process">
    <xsd:complexType>
      <xsd:sequence>
        <xsd:element name="DeptId" type="xsd:string"/>
      </xsd:sequence>
    </xsd:complexType>
  </xsd:element>
    <xsd:element name="ProcessRes">
    <xsd:complexType>
      <xsd:sequence>
        <xsd:element name="DeptName" type="xsd:string"/>
      </xsd:sequence>
    </xsd:complexType>
  </xsd:element>
</xsd:schema>

WSDL with imported xsd:

<?xml version= '1.0' encoding= 'UTF-8' ?>

<wsdl:definitions

     name="getDept"

     targetNamespace="http://xmlns.oracle.com/SOAApplication/PreferenceProject/getDept"

     xmlns:tns="http://xmlns.oracle.com/SOAApplication/PreferenceProject/getDept"

     xmlns:inp1="http://www.dept.poc"

     xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"

    >

    <wsdl:types>

        <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">

            <xsd:import namespace="http://www.dept.poc" schemaLocation="../Schemas/Dept.xsd"/>

        </xsd:schema>

    </wsdl:types>

    <wsdl:message name="requestMessage">

        <wsdl:part name="payload" element="inp1:Process"/>

    </wsdl:message>

    <wsdl:message name="replyMessage">

        <wsdl:part name="payload" element="inp1:ProcessRes"/>

    </wsdl:message>

    <wsdl:portType name="getDept_ptt">

        <wsdl:operation name="getDept">

            <wsdl:input message="tns:requestMessage"/>

            <wsdl:output message="tns:replyMessage"/>

        </wsdl:operation>

    </wsdl:portType>

</wsdl:definitions>

We can modify from imported to inline schema following the steps:

• Add the target namespace of the XSD.
• Instead of import statement, use the schema elements inside schema element.

WSDL with inline schema:

<?xml version= '1.0' encoding= 'UTF-8' ?>

<wsdl:definitions name="getDept" targetNamespace="http://xmlns.oracle.com/SOAApplication/PreferenceProject/getDept"

                  xmlns:tns="http://xmlns.oracle.com/SOAApplication/PreferenceProject/getDept"

                  xmlns:inp1="http://www.dept.poc" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/">

  <wsdl:types>

    <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.dept.poc">

      <xsd:element name="Process">

        <xsd:complexType>

          <xsd:sequence>

            <xsd:element name="DeptId" type="xsd:string"/>

          </xsd:sequence>

        </xsd:complexType>

      </xsd:element>

      <xsd:element name="ProcessRes">

        <xsd:complexType>

          <xsd:sequence>

            <xsd:element name="DeptName" type="xsd:string"/>

          </xsd:sequence>

        </xsd:complexType>

      </xsd:element>

    </xsd:schema>

  </wsdl:types>

  <wsdl:message name="requestMessage">

    <wsdl:part name="payload" element="inp1:Process"/>

  </wsdl:message>

  <wsdl:message name="replyMessage">

    <wsdl:part name="payload" element="inp1:ProcessRes"/>

  </wsdl:message>

  <wsdl:portType name="getDept_ptt">

    <wsdl:operation name="getDept">

      <wsdl:input message="tns:requestMessage"/>

      <wsdl:output message="tns:replyMessage"/>

    </wsdl:operation>

  </wsdl:portType>

</wsdl:definitions>