# Eo

## Overview

`Eo` appears to be a web-oriented application area whose primary responsibility is screen wiring rather than rich business logic. Based on the child documentation, this module seems to connect framework configuration, executable screen logic, and view-layer bindings so that pages can be rendered through the application's XML/JSP conventions.

The evidence available for this parent module is sparse: no source files, classes, or package dependencies were indexed directly here. That suggests the important behavior is expressed in the child web module and in external configuration files rather than in a large Java API surface inside `eo` itself. In practice, `Eo` seems to function as a namespace for a configuration-led web stack.

## Sub-module Guide

### `eo.web`

The documented child module is `eo.web`, which appears to be the web-facing integration layer for the application. It does not seem to own much domain logic. Instead, it provides the context in which screen classes, beans, XML descriptors, and JSPs are linked together.

Inside that child module, the most concrete implementation surface is `eo.web.webview`. The child page describes two key types:

- `ACA001SFBean`, which exposes a small presentation model through a `value` property.
- `ACA001SFLogic`, which provides an `execute()` entry point for the framework.

These are not independent features so much as two halves of a screen contract. The bean carries data into the view layer, while the logic class gives the framework a target to invoke during page processing. The surrounding XML and JSP files then bind those pieces together by name.

This relationship suggests a layered structure:

- `eo` defines the overall area.
- `eo.web` holds the web integration concerns.
- `eo.web.webview` contains the concrete screen types used by the framework.

The child documentation also notes a duplicate `ACA001SFLogic` in an `xml-unresolved-fqn` source set, which suggests the same screen contract may be exercised in both runtime wiring and configuration-resolution scenarios.

## Key Patterns and Architecture

The architecture across the available documentation appears to follow a few consistent patterns:

- **Configuration-centered wiring** — XML and JSP files define most of the important relationships.
- **Thin framework contracts** — the Java types appear intentionally small so the surrounding framework can control execution and rendering.
- **Stable naming over large APIs** — class names, method names, and property names matter because external descriptors reference them directly.
- **View-driven screen composition** — the bean and logic types work together to support page rendering rather than to implement standalone domain behavior.

### Interaction diagram

```mermaid
flowchart TD
    XmlConfig["XML configuration"] --> Logic["ACA001SFLogic"]
    Logic --> Execute["execute()"]
    Bean["ACA001SFBean"] --> JspView["JSP rendering"]
    XmlConfig --> Bean
    JspView --> XmlConfig
```

This diagram reflects the relationship described in the child documentation: configuration wires the logic class, the logic provides the execution entry point, and the bean supplies the data that the JSP consumes.

## Dependencies and Integration

The module-level evidence for `eo` shows no resolved package dependencies and no indexed source files. As a result, the integration story is inferred mainly from the child documentation and from the external files it references.

The child page identifies several configuration and view artifacts that participate in the screen flow:

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

These files imply that `eo.web` connects to multiple XML configuration paths and at least one JSP rendering path. The repeated screen naming across those files suggests a shared naming convention and possibly a set of parallel entry points for the same user-facing flow.

At the level of this documentation, no other internal module relationships were detected. `Eo` therefore appears to depend more on the surrounding framework and external descriptor files than on other Java subpackages.

## Notes for Developers

- This area appears to be highly sensitive to naming. If you change class names, method names, or property names, review every XML and JSP reference first.
- `ACA001SFBean` currently exposes only a single `value` property, so any expansion of the presentation model should be checked against the framework's binding rules.
- `ACA001SFLogic.execute()` is described as the framework entry point, but the available documentation does not show substantive business behavior there. Do not assume business rules belong in this method without confirming the surrounding flow.
- The duplicate `ACA001SFLogic` noted in another source set suggests this package may participate in configuration-resolution tests as well as runtime page wiring.
- Because the module is configuration-driven, small Java changes can have large effects on view resolution and page startup.
- When working in this area, treat XML, JSP, and Java as one integrated unit rather than as separate concerns.