# Com / Optage / Kopt / Batch

## Overview

The `com.optage.kopt.batch` package contains batch job entry points for the OPTAGE KOPT system. It defines three fixture classes — `KKPRC14901`, `KKPRC24901`, and `KKPRC34901` — that serve as the execution boundary for batch processing operations. These classes delegate their work to downstream logic (notably `EKK0301A010` from the `com.optage.kopt.ekk` package for the primary job). The package is structured as a set of auto-generated fixtures for SPEC-SCOPED-WIKI tests.

## Key Classes and Interfaces

### KKPRC14901

**File:** [`src/main/java/com/optage/kopt/batch/KKPRC14901.java`](src/main/java/com/optage/kopt/batch/KKPRC14901.java)

The primary batch job class in this package. It exposes two entry points:

- **`check()`** — A no-op stub placeholder. Appears reserved for a validation or pre-flight step that has not been implemented yet.
- **`run()`** — The main entry point. Delegates to `EKK0301A010` from the `com.optage.kopt.ekk` package, calling `process()` on that class to execute the actual batch work.

```java
public void run() { new EKK0301A010().process(); }
```

This class appears to be the main orchestration point for a batch workflow, instantiating a handler from a sibling package and kicking off its processing logic.

### KKPRC24901

**File:** [`src/main/java/com/optage/kopt/batch/KKPRC24901.java`](src/main/java/com/optage/kopt/batch/KKPRC24901.java)

The secondary batch job class. Its sole method is:

- **`run()`** — An unimplemented stub that holds the comment `/* KKPRC secondary batch */`. This class follows the same naming convention (`KKPRC` prefix + numeric ID) as `KKPRC14901`, suggesting a family of related batch processors.

### KKPRC34901

**File:** [`src/main/java/com/optage/kopt/batch/KKPRC34901.java`](src/main/java/com/optage/kopt/batch/KKPRC34901.java)

The tertiary batch job class. Like `KKPRC24901`, it contains a single `run()` method that is currently a stub with the comment `/* KKPRC tertiary batch */`.

### Naming Convention

All three classes follow the `KKPRC` prefix pattern followed by a numeric suffix:

| Class | Role |
|---|---|
| `KKPRC14901` | Primary batch — implements `run()` and delegates to external handler |
| `KKPRC24901` | Secondary batch — stub |
| `KKPRC34901` | Tertiary batch — stub |

The numeric IDs likely encode business context (e.g., module, sequence number, or job type) within the broader OPTAGE application.

## How It Works

The batch execution model for this package is straightforward:

1. A scheduler or external driver invokes `run()` on one of the `KKPRC` classes.
2. For `KKPRC14901`, the `run()` method instantiates `EKK0301A010` (from `com.optage.kopt.ekk`) and calls its `process()` method.
3. `KKPRC24901` and `KKPRC34901` are currently unimplemented stubs awaiting their logic.

This pattern — where the batch class acts as a thin facade over a handler in a sibling package — keeps the batch entry points minimal and pushes business logic into dedicated handler classes.

```mermaid
flowchart LR
    subgraph Batch["com.optage.kopt.batch"]
        K1["KKPRC14901
Primary batch"]
        K2["KKPRC24901
Secondary batch
(stub)"]
        K3["KKPRC34901
Tertiary batch
(stub)"]
    end
    K1 -->|"new().process()"| EKK["EKK0301A010
com.optage.kopt.ekk"]
```

## Dependencies and Integration

| Dependency | Type | Description |
|---|---|---|
| `com.optage.kopt.ekk.EKK0301A010` | Internal | The handler class instantiated by `KKPRC14901.run()`. This class is not defined in the batch package and lives in a sibling module. |

The only observed outgoing dependency is to `com.optage.kopt.ekk`, which contains the actual processing logic invoked by the primary batch job.

## Notes for Developers

- **Stub classes:** `KKPRC24901` and `KKPRC34901` are auto-generated fixture stubs. They do not contain implementation logic yet. Any work on these classes should follow the pattern established by `KKPRC14901` — implement `run()` to delegate to an appropriate handler class from a sibling package.
- **Thin facade pattern:** The batch classes are designed to be thin entry points. The actual business logic lives in handler classes (like `EKK0301A010`) in the `com.optage.kopt.ekk` package. New batch jobs should create their handler in a sibling package rather than embedding logic directly.
- **`check()` method:** Only `KKPRC14901` defines a `check()` method, and it is currently a no-op stub. This appears to be a planned validation step that may be used by a batch runner to validate state before invoking `run()`.
- **No child packages:** This module is a leaf subpackage with no further subdivisions. All batch logic for this module lives directly in these three classes.