On Execute Hook
This hook is executed on each fetch.
| On Execute | List | Show |
|---|---|---|
| Input for top-level component | i.filter | i.filter,
Public identifiers: i.orderNumber, i.orderNumber.isSet |
| Input for child component | Internal identifiers from
parent component:
i.orno1, i.orno2, orno1.isSet, i.orno2.isSet |
|
| Output for top-level component | o.anythingFetched,
All attribute arguments: o.orderNumber, o.orno1, o.orno2, o.Customer_name, o.orderNumber.isSet, o.orno1.isSet, o.orno2.isSet, o.Customer_name.isSet |
|
| Output for child component | o.anythingFetched,
All attribute arguments: o.orno1, o.orno2, o.lineNumber, o.item, o.orno1.isSet, o.orno2.isSet, o.lineNumber.isSet, o.item.isSet, |
|
The on execute hook must set o.anythingFetched to the correct value. If
it is set to true then the data will be retrieved and an object or component
instance is added to the List/Show response. If it is set to false then in case
of a subcomponent the process will continue reading the next parent, and in
case of the top-level component, the execution for the method will be finalized
Note: For List/Show we do not support io.default. If an on
execute hook is defined, the default behaviour cannot be used. The reason is
that the default behaviour requires initialization (building a query, parsing
and executing it) that cannot be done anymore at the moment of 'on execute'.
Additionally, we cannot switch between default behaviour or not per instance,
because of the state that is used while reading the database.