# Eo / Web / Webview

## Overview

`eo.web.webview` appears to be the web-view integration layer for the `Eo` application. Based on the available child documentation, this package is responsible for wiring view state and page execution hooks into the surrounding web framework rather than implementing heavy business logic itself.

The documented sub-area, `ACA001SF`, is a good example of this role: it exposes a small bean for page data and a paired logic class with an `execute()` entry point. The module therefore seems to act as a contract boundary between XML/JSP configuration and the runtime page lifecycle.

## Sub-module Guide

### `ACA001SF`

Source: [`.codewiki/eo/web/webview/ACA001SF.md`](.codewiki/eo/web/webview/ACA001SF.md)

`ACA001SF` appears to be a narrowly scoped web-view feature module. It contains:

- `ACA001SFBean`, which provides a minimal view model with a single `value` property
- `ACA001SFLogic`, which provides the framework-facing `execute()` hook

The relationship between these two parts is straightforward: the bean holds state that the view can read, while the logic class provides the page entry point that the framework calls. The child documentation also notes two source variants of `ACA001SFLogic` in different fixture trees, which suggests this package is used both as application wiring and as reference material for XML resolution scenarios.

In system terms, `ACA001SF` is not an isolated feature implementation. It is the connective tissue that lets the web layer locate the right bean and logic class through configuration.

## Key Patterns and Architecture

### View-model plus execution hook

The child module follows a very common web pattern:

- a small bean represents page state
- a logic class exposes an entry-point method
- external XML or JSP wiring binds the two together

This appears to be a deliberate separation of concerns. The bean is a data carrier, while the logic class is the place where the framework starts page processing. Even though the documented `execute()` methods are empty, their presence is important because the surrounding configuration depends on them.

### Configuration-driven integration

The module appears to be driven more by XML and JSP references than by direct imports or internal dependencies. That means the architecture is contract-based:

- class names matter
- package names matter
- method signatures matter

In practice, this makes `eo.web.webview` sensitive to refactors that would be harmless in a purely code-centric module.

### Minimal surface area

The available documentation suggests the module intentionally exposes a very small API. That minimalism likely reflects one of two things:

- the module is a fixture or sample used to test framework resolution, or
- the real behavior is implemented in surrounding framework code and configuration

Either way, the package is structured as a thin adapter layer rather than a domain-rich subsystem.

### Relationship diagram

```mermaid
flowchart LR
WebLayer["Web layer and configuration"] --> ACA001SFBean["ACA001SFBean"]
WebLayer --> ACA001SFLogic["ACA001SFLogic"]
ACA001SFLogic --> Execute["execute() entry point"]
ACA001SFBean --> ViewState["Read-only page state"]
Execute --> ViewState
```

## Dependencies and Integration

The available evidence does not show direct package dependencies, source imports, or indexed classes for `eo.web.webview` as a whole. Instead, integration seems to happen through external configuration files and JSPs that reference the child module by fully qualified class name.

From the child documentation, `ACA001SF` is referenced by:

- `WEBGAMEN_FULL_ACA001.xml`
- `faces-config.xml`
- `WEBGAMEN_ACA001010PJP.xml`
- `x33S_ACA001.xml`
- `FULL_ACA001010PJP.jsp`
- `external-refs.xml`

That pattern suggests this package participates in a larger web application framework where page flow is assembled from config rather than from explicit in-code composition.

### Integration implications

- Renaming or relocating classes in this package would likely require coordinated updates to XML and JSP references.
- The bean is part of the view contract, while the logic class is part of the execution contract.
- The package may be used in tests or fixtures that verify how configuration resolves class names, especially given the duplicate `ACA001SFLogic` source variants described in the child page.

## Notes for Developers

- Treat this package as a framework boundary, not as a self-contained business layer.
- When changing a child module, check XML and JSP references first, since those appear to be the primary integration points.
- If you add new view state, confirm whether the bean needs setters or framework-backed population support.
- If you add new logic methods, keep `execute()` intact unless the surrounding framework contract changes as well.
- Because the index did not capture source-level dependencies for this package, be cautious about assuming hidden coupling; the strongest evidence points to configuration-based wiring.

## Summary

`eo.web.webview` appears to provide the web-facing glue that connects page state and page execution to the rest of the application. The documented `ACA001SF` child shows the package’s role clearly: a small bean supplies view data, and a logic class supplies the execution entry point, with XML and JSP files handling the actual assembly of the page flow.