# Com / Optage / Testdata / Util

This package is a utility module within the Optage test data framework. It provides helper classes for validation and rule-checking operations during test data generation and processing.

## Overview

The `com.optage.testdata.util` package contains utility classes that support the test data generation pipeline. Its purpose is to provide shared, reusable helper functionality so that test data components can perform common operations — such as applying rules against a context object — without duplicating logic.

## Key Classes and Interfaces

### JBSbatCheckUtil

A utility class responsible for invoking rule-based checks, specifically related to JBSBAT (JSON Batch) operations.

**Source:** [`JBSbatCheckUtil.java`](src/main/java/com/optage/testdata/util/JBSbatCheckUtil.java)

#### `invoke(Object ctx, String[] rules)`

Applies a set of rules against a given context object.

| Parameter | Type       | Description                                      |
|-----------|------------|--------------------------------------------------|
| `ctx`     | `Object`   | The context object against which rules are evaluated. |
| `rules`   | `String[]` | An array of rule definitions to apply.           |

**Return value:** `void`

This method accepts a context and a set of string-based rules, then executes the associated checks. The implementation appears to serve as a hook or entry point for rule evaluation during test data processing.

> **Note:** The current implementation is a stub. The method body contains only a comment placeholder (`// stub`), indicating that the actual rule application logic has not yet been implemented.

## Package Structure

```mermaid
flowchart TD
    A["com.optage.testdata.util"] --> B["JBSbatCheckUtil"]
    B --> C["invoke
(ctx, rules)"]
```

## Dependencies and Integration

No external package dependencies or cross-module relationships were detected for this module. It is designed to be self-contained and can be used by any component within the broader test data framework.

## Notes for Developers

- **Stub implementation:** The `JBSbatCheckUtil.invoke` method is currently a no-op stub. When implementing the actual logic, consider:
  - How rules are represented as strings — will a parser or DSL be needed?
  - What the `ctx` object contains and how rules reference it.
  - Whether errors or validation failures should throw exceptions, return a result object, or be logged silently.
- **Static utility class:** The class follows a static utility pattern (all methods are `static`, no constructor), so it should not be instantiated.
- **Extension point:** This package is a natural place to add additional utility methods for test data validation, transformation, or rule evaluation as the framework evolves.