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Lifecycle page shows one roundtrip; binding page names the attribute in its picture #430

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oblomov-dev merged 1 commit into from
Nov 12, 2026
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Lifecycle page shows one roundtrip; binding page names the attribute in its picture #430

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4 changes: 4 additions & 0 deletions docs/cookbook/event_navigation/life_cycle.md
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Expand Up @@ -9,6 +9,10 @@ description: The abap2UI5 app life cycle - every request enters main( ), and che

Every request enters the `main` method. One `IF` / `ELSEIF` chain dispatches between initialization, navigation returns, and user events using `` client->check_on_init( ) ``, `` client->check_on_event( `EVENT_NAME` ) ``, and `` client->check_on_navigated( ) ``. Each branch either does the work inline (tiny apps) or calls a named handler method (typical apps) — the **structure is always the same**.

![One roundtrip in five steps: the app draft is loaded, the user's changes are applied, main( ) runs, the response is built and the app draft is saved under a new id](/get_started/roundtrip.svg)

The picture shows one roundtrip. Your code is step 3: `main` runs once per click, on an instance the framework has just restored.

```abap
CLASS zcl_sample_life_cycle DEFINITION PUBLIC.

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3 changes: 3 additions & 0 deletions docs/cookbook/model/binding.md
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Expand Up @@ -68,6 +68,9 @@ framework has already synced the user's changes back to your ABAP attribute:

![The attribute is bound, appears as a path in the view and the model, the Input shows it, and what the user types travels back into the attribute before main( ) runs](/cookbook/model/bound-value.svg)

The picture uses an attribute `quantity` as its example. The class below binds
`name` the same way.

```abap
CLASS zcl_app_hello_world DEFINITION PUBLIC.

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