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# Business Logic — JBSbatKKSyuKeiStabunKikiStaAdd.terminal() [16 LOC]

| Field | Value |
|-------|-------|
| Fully Qualified Name | `eo.business.service.JBSbatKKSyuKeiStabunKikiStaAdd` |
| Layer | Batch Service (package: `eo.business.service`, module within `koptBatch`) |
| Module | `service` (Package: `eo.business.service`) |

## 1. Role

### JBSbatKKSyuKeiStabunKikiStaAdd.terminal()

This method performs **business service termination processing** (業務サービス終了処理) — specifically, it is the cleanup/disposal phase of the Main Contract Start Diverter Machine Start Registration service (主契約開始分機器開始登録部品). The `JBSbatKKSyuKeiStabunKikiStaAdd` class handles registration processing for equipment start triggers during the main contract activation process. The `terminal()` method follows the standard lifecycle pattern of batch business services in the K-Opticom customer core system: it executes after the main processing (`execute()`) completes (whether successfully or with an error) and is responsible for releasing all resources acquired during the service's lifecycle. This is a shared utility hook — every batch business service extending `JBSbatBusinessService` is expected to implement `terminal()` to guarantee no resource leaks, following the try-finally / cleanup pattern common in Java enterprise batch applications. The method implements the **delegation pattern** by simply forwarding to the `close()` methods of internally held resource objects (database connection wrappers and statement handles), ensuring deterministic cleanup of database resources.

## 2. Processing Pattern (Detailed Business Logic)

```mermaid
flowchart TD
    START(["terminal()"])
    CLOSE_DB_1["db_KK_T_KAP_KEI.close()"]
    CLOSE_DB_2["db_KK_T_PRG.close()"]
    CLOSE_DB_3["db_KK_T_SVC_KEI_UCWK.close()"]
    CLOSE_DB_4["db_KK_T_KAISEN_TG_SVKEI.close()"]
    CLOSE_STMT["stmt.close()"]
    END_NODE(["Return / Next"])

    START --> CLOSE_DB_1
    CLOSE_DB_1 --> CLOSE_DB_2
    CLOSE_DB_2 --> CLOSE_DB_3
    CLOSE_DB_3 --> CLOSE_DB_4
    CLOSE_DB_4 --> CLOSE_STMT
    CLOSE_STMT --> END_NODE
```

**Processing flow:** The method executes a linear, unconditional cleanup sequence:
1. Close the `db_KK_T_KAP_KEI` database access object (for `KK_T_KAP_KEI` table).
2. Close the `db_KK_T_PRG` database access object (for `KK_T_PRG` table).
3. Close the `db_KK_T_SVC_KEI_UCWK` database access object (for `KK_T_SVC_KEI_UCWK` table).
4. Close the `db_KK_T_KAISEN_TG_SVKEI` database access object (for `KK_T_KAISEN_TG_SVKEI` table).
5. Close the `stmt` SQL statement handle.

There are **no conditional branches**, no method calls that perform CRUD operations, and no data transformation. This is a pure resource teardown method.

## 3. Parameter Analysis

| No | Parameter Name | Type | Business Description |
|----|---------------|------|---------------------|
| - | (none) | - | This method takes no parameters. It operates entirely on instance fields (resource objects) initialized during the `initial()` setup phase inherited from `JBSbatBusinessService`. |

**Instance fields / external state read by this method:**

| # | Field Name | Type | Business Description |
|---|-----------|------|---------------------|
| 1 | `db_KK_T_KAP_KEI` | `JBSbatKK_T_KAP_KEI` (extends `JBSbatCommonDBInterface`) | Database access handle for the `KK_T_KAP_KEI` table (Main Contract Line Item — service detail work information). Represents a database connection/session to the main contract line item table. |
| 2 | `db_KK_T_PRG` | `JBSbatKK_T_PRG` (extends `JBSbatCommonDBInterface`) | Database access handle for the `KK_T_PRG` table (Program management / process configuration table). |
| 3 | `db_KK_T_SVC_KEI_UCWK` | `JBSbatKK_T_SVC_KEI_UCWK` (extends `JBSbatCommonDBInterface`) | Database access handle for the `KK_T_SVC_KEI_UCWK` table (Service Detail Work table). Represents a database connection/session for service detail work tracking data. |
| 4 | `db_KK_T_KAISEN_TG_SVKEI` | `JBSbatKK_T_KAISEN_TG_SVKEI` (extends `JBSbatKK_IFTable`) | Database access handle for the `KK_T_KAISEN_TG_SVKEI` table (Kaisen target service information). A custom interface table used as a staging area for service information targeted for kaiZen (improvement/review) processing. |
| 5 | `stmt` | `java.sql.Statement` | SQL statement handle — a JDBC `Statement` object used for executing SQL queries/updates during the service lifecycle. |

## 4. CRUD Operations / Called Services

### Pre-computed evidence from code analysis graph:

This method performs **zero CRUD operations**. It is a resource cleanup handler that only calls `close()` on connection and statement objects. There are no inserts, selects, updates, or deletes.

| # | Called Method | SC Code | Entity / DB | Operation Description |
|---|--------------|---------|-------------|----------------------|
| 1 | `db_KK_T_KAP_KEI.close()` | - | `KK_T_KAP_KEI` | Closes the database access connection for the Main Contract Line Item table. |
| 2 | `db_KK_T_PRG.close()` | - | `KK_T_PRG` | Closes the database access connection for the Program table. |
| 3 | `db_KK_T_SVC_KEI_UCWK.close()` | - | `KK_T_SVC_KEI_UCWK` | Closes the database access connection for the Service Detail Work table. |
| 4 | `db_KK_T_KAISEN_TG_SVKEI.close()` | - | `KK_T_KAISEN_TG_SVKEI` | Closes the database access connection for the Kaisen Target Service Information table. |
| 5 | `stmt.close()` | - | - | Closes the JDBC SQL Statement handle. |

## 5. Dependency Trace

Trace who calls this method and what this method ultimately calls.

| # | Caller (Screen/Batch) | Call Chain (Full Path to this Method) | Terminal (SC / CRUD / Entity) |
|---|----------------------|--------------------------------------|-------------------------------|
| 1 | Batch: `JBSbatKKAdChgCstScreenKidou` | `JBSbatKKAdChgCstScreenKidou.execute()` -> `execKikiStaAdd.terminal()` | `close [R] KK_T_KAP_KEI`, `close [R] KK_T_PRG`, `close [R] KK_T_SVC_KEI_UCWK`, `close [R] KK_T_KAISEN_TG_SVKEI` |

**Caller context:** `JBSbatKKAdChgCstScreenKidou` is a batch service for main contract change/customers mobile operations (主契約変更顧客移動). It holds a field `execKikiStaAdd` of type `JBSbatKKSyuKeiStabunKikiStaAdd` (initialized in the `initial()` method) and is responsible for equipment start registration processing as part of the main contract change with customer mobility workflow.

## 6. Per-Branch Detail Blocks

Since this method has no conditional branches, loops, or switch statements, there is only a single linear block.

**Block 1** — [LINEAR SEQUENCE] (no condition) (L482–L492)

> The terminal method executes a straight-line sequence of resource cleanup calls. The Japanese comment `/**▼▼▼▼▼▼ツールから生成した終了処理のソースです 開始▼▼▼▼▼▼*/` (Source code for termination processing generated from tools — Start) marks the beginning of the auto-generated cleanup section. The method closes 4 database access handles, then closes the common `stmt` object. The final Japanese comment `/**▲▲▲▲▲▲ツールから生成した終了処理のソースです 終了▲▲▲▲▲▲*/` (Source code for termination processing generated from tools — End) marks the end.

| # | Type | Code |
|---|------|------|
| 1 | EXEC | `db_KK_T_KAP_KEI.close()` // Close database access for KK_T_KAP_KEI (Main Contract Line Item) [-> DB Connection Close] |
| 2 | EXEC | `db_KK_T_PRG.close()` // Close database access for KK_T_PRG (Program) [-> DB Connection Close] |
| 3 | EXEC | `db_KK_T_SVC_KEI_UCWK.close()` // Close database access for KK_T_SVC_KEI_UCWK (Service Detail Work) [-> DB Connection Close] |
| 4 | EXEC | `db_KK_T_KAISEN_TG_SVKEI.close()` // Close database access for KK_T_KAISEN_TG_SVKEI (Kaisen Target Service Info) [-> DB Connection Close] |
| 5 | EXEC | `stmt.close()` // Close common JDBC Statement handle [-> Statement Close] |

## 7. Glossary

Define ALL domain-specific terms, Japanese field names, and technical abbreviations used in this method.

| Term | Type | Business Meaning |
|------|------|------------------|
| `KK_T_KAP_KEI` | DB Table | Main Contract Line Item table — stores detailed information about each line item under a main contract, including service detail work numbers and associated service types. |
| `KK_T_PRG` | DB Table | Program table — stores program/process configuration data used by batch jobs for process management and execution tracking. |
| `KK_T_SVC_KEI_UCWK` | DB Table | Service Detail Work table — tracks work items related to service configuration and setup, used for managing service detail processing workflows. |
| `KK_T_KAISEN_TG_SVKEI` | DB Table | Kaisen Target Service Information table — staging table for service information targeted for kaiZen (continuous improvement/review) processing. `KAISEN` = 改善 (improvement), `TG` = Target. |
| `stmt` | Field | JDBC `Statement` handle — used for executing SQL statements against the database during service processing. |
| `terminal()` | Method | Business service termination processing (業務サービス終了処理) — lifecycle method called after main processing to release resources. |
| `JBSbatBusinessService` | Class | Base class for batch business services in the K-Opticom system — provides the lifecycle framework including `initial()` and `terminal()` hooks. |
| `JBSbatCommonDBInterface` | Interface | Common database interface — base interface for all database access wrapper classes in the system. |
| `JBSbatKK_IFTable` | Class | K-Opticom custom interface table base — base class for custom interface/staging tables (e.g., `KK_T_KAISEN_TG_SVKEI`). |
| Main Contract | Business term | 主契約 (Shuuyakuyaku) — the primary service contract under which multiple line items (services, equipment, features) are registered. |
| Line Item | Business term | 細目 (Saimoku) — individual service/equipment entries under a main contract. |
| Start Diverter | Business term | 開始分岐 (Kaishi Bunki) — the routing logic that determines how equipment registration flows differ based on the start trigger type (contract type, service type, etc.). |
| K-Opticom | Company | Japanese telecommunications provider; this is the customer core system (顧客基幹システム). |
| SOD | Acronym | Service Order Data — order fulfillment entity used across services. |
| FTTH | Business term | Fiber To The Home — fiber-optic broadband service type. |

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