Setting Data using vSphere web client sdk

Hello,

In most use cases or samples provided in the sdk docs , there are examples of data query using either  PropertyProviderAdapter (getProperties) or DataProviderAdapter (getData) .Is there an API do setData or setProperties without implementing our own Custom Service Class ?

Right now all my set's are using my own custom Java Service class and I don't want to mix my adapters i.e getProperties & getData with my custom service class.

Or if I chose a Dataprovider can I implement my own set to plug it in DataProviderAdapter ? ( Without using my Service and DataProviderAdapter interfaces on the same class ofcourse Image may be NSFW.
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Thanks!