1a) Modifying your schema for MTOM
Lets say we have a Picture schema type like this:
<schema targetNamespace="http://pictures.com"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<element name="Picture">
<complexType>
<sequence>
<element name="Title" type="xsd:string"/>
<element name="ImageData" type="xsd:base64Binary"/>
</sequence>
</complexType>
</element>
</schema>In this case the ImageData element is something we would like to have transferred as an attachment. To do this we just need to add an xmime:expectedContentTypes annotation:
<schema targetNamespace="http://pictures.com"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xmime="http://www.w3.org/2005/05/xmlmime">
<element name="Picture">
<complexType>
<sequence>
<element name="Title" type="xsd:string"/>
<element name="ImageData" type="xsd:base64Binary"
xmime:expectedContentTypes="application/octet-stream"/>
</sequence>
</complexType>
</element>
</schema>This tells JAXB (which WSDL2Java uses to generate POJOs for your service) that this field could be of any content type. Instead of creating a byte[] array for the base64Binary element, it will create a DataHandler instead which can be used to stream the data.
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