Recently I came across property called oracle.adf.view.rich.POSTBACK_PAYLOAD_TYPE. This property helps to optimize postback payload size. It is described in ADF Faces configuration section – A.2.3.16 Postback Payload Size Optimization. ADF partial request is executing HTTP post with values from all fields included. When postback property is set to dirty, it will include into HTTP post only changed values. As result – server will get only changed attributes, potentially this can reduce server time processing and make HTTP request size smaller. This especially can be important for large forms, with many fields.
Let’s take a look into example. After clicking on any button in the form, go to network monitor and study Form Data section. You will see ID’s and values for all fields included in the UI. All fields are submitted with HTTP request by default, even these fields were not changed: Read the complete article here.
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