# Com / Optage / Kopt / Batch

## Overview

The `com.optage.kopt.batch` package contains auto-generated fixture classes used by the SPEC-SCOPED-WIKI test framework. These three classes — `KKPRC14901`, `KKPRC24901`, and `KKPRC34901` — serve as lightweight batch entry points that orchestrate downstream processing via classes in sibling packages (notably `com.optage.kopt.ekk`). Each class exposes minimal APIs (`check` and/or `run`) designed to be invoked by test harnesses.

## Key Classes

### KKPRC14901

The most capable class in the package, with two public methods:

- **`check()`** — A no-op stub (lines 8-8). The body contains only a comment marker (`/* KKPRC batch check */`), indicating this method is a placeholder intended for future validation logic or for test frameworks to call as a pre-flight check.

- **`run()`** — The primary execution method. It creates a new instance of `EKK0301A010` (from the `com.optage.kopt.ekk` package) and invokes its `process()` method (lines 9-9). This makes `KKPRC14901` the main orchestrator in the batch package, delegating actual work to the `ekk` subpackage.

```java
public class KKPRC14901 {
  public void check() { /* KKPRC batch check */ }
  public void run() { new EKK0301A010().process(); }
}
```

### KKPRC24901

A secondary batch entry point:

- **`run()`** — A no-op stub (lines 8-8) containing only a comment (`/* KKPRC secondary batch */`). This class appears to be scaffolded for future batch logic that would handle a second category of batch processing.

### KKPRC34901

A tertiary batch entry point:

- **`run()`** — A no-op stub (lines 8-8) containing only a comment (`/* KKPRC tertiary batch */`). Like `KKPRC24901`, this is a placeholder for future batch processing functionality.

```java
public class KKPRC24901 {
  public void run() { /* KKPRC secondary batch */ }
}

public class KKPRC34901 {
  public void run() { /* KKPRC tertiary batch */ }
}
```

## How It Works

### Typical Execution Flow

The only class with meaningful logic today is `KKPRC14901`. When its `run()` method is called, the execution proceeds as follows:

1. An instance of `EKK0301A010` is created on the heap.
2. Its `process()` method is invoked immediately, delegating the actual batch processing work.
3. The result of `EKK0301A010.process()` flows back (it returns `void`), and `KKPRC14901.run()` completes.

The `EKK0301A010` class, in turn, can delegate further — its `process()` method is accompanied by a `notify()` method that itself triggers `KKW0100B001.trigger()`, forming a chain across packages.

### Design Pattern

The batch package follows a simple **delegator pattern**: the batch classes act as thin facade/entry points that hand off work to domain-specific classes in sibling packages (`ekk`, `kkw`). This separation keeps the batch layer focused on orchestration while keeping business logic in dedicated subpackages.

```mermaid
flowchart LR
    B["com.optage.kopt.batch"]
    C["KKPRC14901"]
    D["KKPRC24901"]
    E["KKPRC34901"]
    F["EKK0301A010<br/>com.optage.kopt.ekk"]
    G["KKW0100B001<br/>com.optage.kopt.kkw"]

    B --> C
    B --> D
    B --> E
    C --> F
    F --> G
```

### Module Structure

| Class | Methods | Status |
|---|---|---|
| [KKPRC14901](src/main/java/com/optage/kopt/batch/KKPRC14901.java) | `check()`, `run()` | Active — delegates to `EKK0301A010` |
| [KKPRC24901](src/main/java/com/optage/kopt/batch/KKPRC24901.java) | `run()` | Stub — placeholder for secondary batch |
| [KKPRC34901](src/main/java/com/optage/kopt/batch/KKPRC34901.java) | `run()` | Stub — placeholder for tertiary batch |

## Dependencies and Integration

| Dependency | Package | Role |
|---|---|---|
| `EKK0301A010` | `com.optage.kopt.ekk` | Contract processing — the primary delegation target of `KKPRC14901.run()` |
| `KKW0100B001` | `com.optage.kopt.kkw` | Downstream processing triggered by `EKK0301A010.notify()` (transitive dependency) |

The `batch` package depends on `com.optage.kopt.ekk` for actual business processing. No other incoming or outgoing relationships were detected in the module index.

## Notes for Developers

- **These are auto-generated fixtures.** All three classes carry the Javadoc comment "auto-generated fixture class for SPEC-SCOPED-WIKI tests." Do not manually edit the class bodies — regenerations will overwrite them. You can, however, add comments around the stubs to document intended behavior.
- **`check()` is a no-op.** The `KKPRC14901.check()` method contains only a comment. If the test harness expects it to perform validation, add logic there.
- **Two classes are empty.** `KKPRC24901` and `KKPRC34901` have `run()` methods with no executable code. They are reserved placeholders — implement them when secondary or tertiary batch processing is required.
- **Instantiation is eager.** `KKPRC14901.run()` creates `new EKK0301A010()` inline. If performance becomes an issue or you need to inject mocks for testing, consider making the `EKK0301A010` instance injectable.
- **Package naming convention.** Classes follow the pattern `KKPRC` + numeric suffix. The number encodes a specific batch processing role (1xx01 = primary, 2xx01 = secondary, 3xx01 = tertiary).
- **Extension points.** To add a new batch category, create a new class in this package following the same pattern (a `run()` method that delegates to an appropriate handler in a sibling package).