# Eo / Web / Webview

## Overview

`eo.web.webview` appears to be a small web-view integration area that exists to support a specific ACA001 screen flow. The module’s role is not to hold core business rules; instead, it provides the types that the web layer, XML configuration, and JSP pages can wire together during view execution.

From the available evidence, this package functions as a thin bridge between configuration-driven presentation and a minimal Java-side execution hook. That makes it part of the web application’s screen plumbing: the code gives the UI a bean to read from and a logic class to invoke, while the real behavior is likely defined by the surrounding framework and page configuration.

## Sub-module Guide

### [ACA001SF](.codewiki/eo/web/webview/ACA001SF.md)

`ACA001SF` is the only documented child area under this package. It provides the concrete support classes for the ACA001 flow:

- `ACA001SFBean` is a simple value holder with a single exposed `String` property, `value`.
- `ACA001SFLogic` is the execution entry point, but its `execute()` method is currently empty.

The relationship between these two classes looks intentionally lightweight: the bean supplies state, and the logic class provides a framework hook that could act on that state. In practice, the bean is what the view would read, while the logic class is what the framework would call during page processing.

The child page also shows that both classes are referenced externally by XML and JSP files, which suggests `ACA001SF` is less a self-contained feature module and more a set of wiring types for a single screen or screen family.

## Key Patterns and Architecture

The architecture here appears to follow a configuration-first web pattern:

- **State carrier pattern** — `ACA001SFBean` exposes a minimal read-only model for the view layer.
- **Execution hook pattern** — `ACA001SFLogic` provides an overridable lifecycle method, even though it is currently empty.
- **Framework orchestration** — the actual flow seems to be driven by XML and JSP references rather than by direct Java-to-Java calls.

This means the module’s behavior is spread across layers:

1. XML or page configuration selects the bean and logic types.
2. The framework instantiates or resolves those types during screen execution.
3. The JSP consumes the bean for rendering.
4. The logic class is invoked as part of the page lifecycle, even if it does not yet implement custom behavior.

### Interaction diagram

```mermaid
flowchart TD
  Xml["WEBGAMEN_FULL_ACA001.xml"] --> Bean["ACA001SFBean"]
  Xml --> Logic["ACA001SFLogic"]
  Jsp["FULL_ACA001010PJP.jsp"] --> Bean
  Jsp --> Logic
  Bean --> ViewState["View data"]
  Logic --> Lifecycle["Screen lifecycle"]
```

## Dependencies and Integration

There are no resolved package dependencies, source imports, or class/interface relationships captured for `eo.web.webview` itself. Its integration points are external and appear to be configuration-driven:

- [WEBGAMEN_FULL_ACA001.xml](.codewiki/eo/web/webview/ACA001SF.md) references both `ACA001SFBean` and `ACA001SFLogic`.
- [FULL_ACA001010PJP.jsp](.codewiki/eo/web/webview/ACA001SF.md) also references both classes.

That tells us the package connects into the broader web system through page descriptors and JSPs rather than through an internal service layer. In other words, this module looks like an endpoint adapter for a specific screen, not a reusable domain library.

## Notes for Developers

- This package is very small, so the child module documentation is the best starting point for understanding how it works.
- `ACA001SFLogic.execute()` is currently a no-op, so adding behavior there would be the natural extension path if the screen needs custom processing.
- `ACA001SFBean` only exposes a getter for `value`, which suggests either framework-based population or a deliberately constrained read model.
- Because the screen appears to be wired through XML and JSP references, changing class names or signatures may require coordinated updates in those external files.
- When working in this area, it is worth tracing the configuration and view files first, since the code alone does not show the full control flow.