# Business Logic — JKKIdPwdShkkaSaifurHakkoCC.init() [7 LOC]

| Field | Value |
|-------|-------|
| Fully Qualified Name | `com.fujitsu.futurity.bp.custom.common.JKKIdPwdShkkaSaifurHakkoCC` |
| Layer | CC / Common Component (Package: `com.fujitsu.futurity.bp.custom.common`) |
| Module | `common` (Package: `com.fujitsu.futurity.bp.custom.common`) |

## 1. Role

### JKKIdPwdShkkaSaifurHakkoCC.init()

This method performs the **initialization step for the transfer/revision reservation reflection process** (異動予約反映 — idou yoyaku hannou). In the Fujitsu Futurity operational platform, "transfer/revision" refers to account modifications such as address changes, ownership transfers, or service detail reassignments — distinct from cancellations or new activations. The init method serves as the **first stage of processing** within this reservation reflection workflow, ensuring the request's control map carries a fresh, empty error information container before any subsequent validation or service component execution occurs.

The method acts as a **shared initialization utility** within the `JKKIdPwdShkkaSaifurHakkoCC` (Cancellation Execution Common Component) class. It is invoked at the beginning of service execution flows — specifically by `getInvokeCBS()` and `executeShkkaHakko()` — ensuring that every invocation path begins with a clean error slate. This follows the common enterprise pattern of separating lifecycle management (init → execute → error handling) within common component classes, enabling consistent error aggregation behavior across the screen or batch entry points that delegate to this component.

No conditional branching exists in this method; it is a linear initialization with a single deterministic operation: creating and storing an empty `ArrayList<Object>()` under the `ERROR_INFO` key of the request's control map, which is a map-based container used to pass UI-facing data (including error lists) between the business logic layer and the presentation layer.

## 2. Processing Pattern (Detailed Business Logic)

```mermaid
flowchart TD
    START(["init(param, fixedText)"])
    STEP1["Set param.setControlMapData(ERROR_INFO, new ArrayList<Object>())<br/>Initialize error info list in control map"]
    END_NODE(["Return void"])

    START --> STEP1
    STEP1 --> END_NODE
```

The method executes a single processing step:

1. **Control map error info initialization** — An empty `ArrayList<Object>` is created and stored into the `IRequestParameterReadWrite` parameter's control map under the key `SCControlMapKeys.ERROR_INFO`. This key is defined in `com.fujitsu.futurity.common.x01.sc.SCControlMapKeys` and is used globally across the application to carry aggregated error messages from business logic back to screens. The initialized empty list serves as the collection into which later processing steps (such as `editErrorInfo()`) will add error entries if validation or service execution failures occur.

No conditional branches, loops, or method dispatch paths exist in this method. It is a pure initialization with deterministic behavior.

## 3. Parameter Analysis

| No | Parameter Name | Type | Business Description |
|----|---------------|------|---------------------|
| 1 | `param` | `IRequestParameterReadWrite` | The request parameter object carrying the **model group data** and **control map** — a map-based container that holds screen-level data such as error lists, operator IDs, return codes, and hostname information passed between the business logic layer and presentation layer. |
| 2 | `fixedText` | `String` | A **user-defined arbitrary string** (ユーザ任意文字列) — reserved for future extension or custom annotation purposes. Not referenced in the method body; likely included for API consistency with other methods in the same class that use it for logging or traceability. |

**External state read:**

| # | State | Source | Business Meaning |
|---|-------|--------|------------------|
| 1 | `SCControlMapKeys.ERROR_INFO` | `com.fujitsu.futurity.common.x01.sc.SCControlMapKeys` | The control map key constant identifying the error information entry — used to store and retrieve the aggregated error list across the request lifecycle. |

## 4. CRUD Operations / Called Services

| CRUD | SC / CBS | SC Code | Entity / DB | Operation Description |
|------|----------|---------|-------------|----------------------|
| EXEC | `param.setControlMapData(key, value)` | N/A (framework I/O) | N/A (in-memory control map) | Framework method call — stores the initialized error info list into the request's control map. No database or entity interaction. |

**Notes on classification:**
- This method performs **no database CRUD operations**. It only manipulates in-memory request data structures (the control map).
- The `setControlMapData` call is a framework-level I/O operation on the `IRequestParameterReadWrite` interface, which manages the parameter container used throughout the Futurity platform to pass data between screens and business logic.
- Subsequent methods in the same class (e.g., `editErrorInfo`, called after CBS execution) will populate this list with actual error data, but the `init` method itself is purely preparatory.

## 5. Dependency Trace

| # | Caller (Screen/Batch) | Call Chain (Full Path to this Method) | Terminal (SC / CRUD / Entity) |
|---|----------------------|--------------------------------------|-------------------------------|
| 1 | CBS: `JKKIdPwdShkkaSaifurHakkoCC.getInvokeCBS` | `getInvokeCBS(handle, param, fixedText)` → `init(param, fixedText)` | No terminal CRUD from this method (initialization only) |
| 2 | CBS: `JKKIdPwdShkkaSaifurHakkoCC.executeShkkaHakko` | `executeShkkaHakko(handle, param, fixedText)` → `init(param, fixedText)` | No terminal CRUD from this method (initialization only) |

**Notes:**
- Both callers are within the same class (`JKKIdPwdShkkaSaifurHakkoCC`), which is a **Cancellation Execution Common Component** for processing account transfer/revision reservation reflections.
- No screen or batch entry points (e.g., `KKSV*` operation classes) were found directly calling `init()` — it is a **private method** (visibility: `private`), so it is only accessible from within its owning class.
- The actual screen entry points would be one or more KKSV* operation classes that call `getInvokeCBS` or `executeShkkaHakko`, which in turn invoke `init()`. However, since `init()` is private, it has no independent call chain to a screen.
- The `fixedText` parameter is unused within this method body.

## 6. Per-Branch Detail Blocks

The method contains no conditional branches, loops, or exception handlers. It is a single linear block.

> **Block 1** — [METHOD BODY] (L48-L54)
>
> Initialize the error information list in the control map for the transfer/revision reservation reflection process.
>
> | # | Type | Code |
> |---|------|------|
> | 1 | CALL | `param.setControlMapData(SCControlMapKeys.ERROR_INFO, new ArrayList<Object>())` // Stores a fresh empty list as the error info container in the request's control map [-> SCControlMapKeys.ERROR_INFO = "ERROR_INFO"] |

No additional blocks exist — there are no `if`, `else`, `switch`, `for`, `while`, `try-catch`, or other control flow constructs.

## 7. Glossary

| Term | Type | Business Meaning |
|------|------|------------------|
| 異動予約反映 (Idou Yoyaku Hannou) | Business term | Transfer/Revision Reservation Reflection — the process of reflecting (applying) pre-registered account changes such as address modifications, ownership transfers, or service detail reassignments to the live service system |
| `JKKIdPwdShkkaSaifurHakkoCC` | Class | Cancellation Execution Common Component — handles cancellation and transfer/revision reservation processing. "JKK" = Jiyuu Keno (Cancellation), "IdPwd" = Ido Pason (Transfer Password/Account), "Shkka" = Shokika (Initialization), "Saifur" = Service, "Hakko" = Hakkan (Issuance) |
| `init()` | Method | Initialization method — prepares request state before main processing |
| `IRequestParameterReadWrite` | Interface | Request parameter container interface — manages a map-based object that carries business data, control information, and error lists between presentation and business logic layers |
| `ERROR_INFO` | Key Constant | Control map entry key for the aggregated error information list — the value is stored as `ArrayList<Object>` and populated by methods like `editErrorInfo` after CBS execution |
| `SCControlMapKeys` | Class | Service Component Control Map Keys — central constant class defining all control map entry keys (`ERROR_INFO`, `RETURN_CODE`, `OPERATOR_ID`, `REQ_HOSTNAME`, etc.) used in `com.fujitsu.futurity.common.x01.sc` |
| Control Map | Concept | A `HashMap<String, Object>`-based container within the request parameter that passes screen-level metadata (error lists, return codes, operator info, hostnames) between the operation layer and the business logic layer |
| `fixedText` | Parameter | User-defined arbitrary string — reserved for future extension or custom annotation purposes; not actively used in the current implementation |
| CBS | Acronym | Component Business Service — in Fujitsu Futurity, the CBS execution layer that calls external systems via CAANMsg messaging |
| CAANMsg | Acronym | Common Application ANd Message — Fujitsu's messaging envelope format for CBS communication |