What is a Rollup component? - Abinitio

What is a Rollup component? Explain about it.

- Rollup component allows the users to group the records on certain field values.

- It is a multi stage function and contains

- Initialize 2. Rollup 3. Finalize functions which are mandatory

- To counts of a particular group Rollup needs a temporary variable

- The initialize function is invoked first for each group

- Rollup is called for each of the records in the group.

- The finally function calls only once at the end of last rollup call.