PPR is Partial Page Rendering, similarly to Ajax. It is used to dynamically refresh the part of page.It is done with the use of partial triggers.
For better understanding , i will explain by an example.
In Any .jspx page we have one table (table1) and one command button(button1) label ‘Delete’. On clicking the Delete
button it will call the procedure and delete some records from table. After deleting the records the table should refresh. For this we can make the ‘AutoSumbit’ property of an Button to “TRUE” .Copy the Unique id of Command button i.e. Button1 and paste in the partial trigger property of the table.
Only table will refresh dynamically.
This is short example of PPR in ADF.