# Business Logic — JBSbatTUBmpHaishiSodHakTrn.executeKK_T_SVKEIUW_EOH_TEL_TU_SELECT_002() [11 LOC]

| Field | Value |
|-------|-------|
| Fully Qualified Name | `eo.business.service.JBSbatTUBmpHaishiSodHakTrn` |
| Layer | Service (Batch Service) |
| Module | `service` (Package: `eo.business.service`) |

## 1. Role

### JBSbatTUBmpHaishiSodHakTrn.executeKK_T_SVKEIUW_EOH_TEL_TU_SELECT_002()

This method serves as a targeted database query helper that retrieves service contract detail records for **K-Opticom Optical Phone** (eo Hikaden-denwa) from the `KK_T_SVKEIUW_EOH_TEL` table using a SQL key identifier (`TU_SELECT_002`). It is a private data-access method within the broader **number porting cancellation Service Order Data (SOD) issuance processing module** (番号廃止SOD発行処理部品), which handles batch processing for telecom service cancellations involving number porting. The method does not perform any conditional routing or business decision-making — it strictly assembles bind variable values (phone number and operation date) into a `JBSbatCommonDBInterface` result list object and delegates the SQL execution to the injected `JBSbatSQLAccess` layer (`db_KK_T_SVKEIUW_EOH_TEL`). Its role is that of a **delegated data-fetcher**, called by the parent method `execute()` only when a service contract status is confirmed as "already terminated" (解済済み — status `910`), and the system needs to verify whether corresponding optical phone service contract data exists as a pre-check before determining whether the porting-in (トクチウ — promotional benefit) period has already elapsed.

## 2. Processing Pattern (Detailed Business Logic)

```mermaid
flowchart TD
    START(["executeKK_T_SVKEIUW_EOH_TEL_TU_SELECT_002(param)"])
    STEP1["Create JBSbatCommonDBInterface paramList"]
    STEP2["paramList.setValue(param[0].toString()) -- Phone Number"]
    STEP3["paramList.setValue(param[1].toString()) -- Operation Date"]
    STEP4["paramList.setValue(param[2].toString()) -- Operation Date"]
    STEP5["db_KK_T_SVKEIUW_EOH_TEL.selectBySqlDefine(paramList, TU_SELECT_002) -- Select from KK_T_SVKEIUW_EOH_TEL"]
    END_NODE(["Return / Next"])

    START --> STEP1
    STEP1 --> STEP2
    STEP2 --> STEP3
    STEP3 --> STEP4
    STEP4 --> STEP5
    STEP5 --> END_NODE
```

**Processing Summary:**

1. **Bind Variable List Creation** — Instantiate a `JBSbatCommonDBInterface` (a result-list-like data structure used as a bind-variable container for SQL execution).
2. **Phone Number Bind** — Extract and convert `param[0]` (the phone number in Kaisei-format, 改番電話番号) to a string, then push it into the param list via `setValue()`.
3. **Operation Date Bind (x2)** — Extract and convert `param[1]` and `param[2]` (both the operation date, 運用日) to strings, then push each into the param list via `setValue()`.
4. **SQL Execution** — Invoke `selectBySqlDefine()` on the `db_KK_T_SVKEIUW_EOH_TEL` SQL access layer with the populated param list and the SQL key `TU_SELECT_002`, which executes a pre-defined SELECT query against the `KK_T_SVKEIUW_EOH_TEL` table.

The method contains no conditional branches, loops, or decision nodes. It is a straightforward linear data-fetch sequence.

## 3. Parameter Analysis

| No | Parameter Name | Type | Business Description |
|----|---------------|------|---------------------|
| 1 | `param` | `Object[]` | An array of bind variable values passed sequentially. Expected length is 3. Contains: `param[0]` = Phone Number (NTT_KEI_TEL_KAISEN_NO, 改番電話番号 — the reformatted/ported phone number after number porting), `param[1]` = Operation Date (commonItem.getOpeDate(), 運用日 — the batch processing date), `param[2]` = Operation Date (commonItem.getOpeDate(), 運用日 — the batch processing date, used as a duplicate filter/predicate in the SQL WHERE clause). |

**Instance Fields Read by this Method:**

| Field | Type | Business Description |
|-------|------|---------------------|
| `db_KK_T_SVKEIUW_EOH_TEL` | `JBSbatSQLAccess` | SQL access layer instance for the Service Contract Detail <eo Optical Phone> table (`KK_T_SVKEIUW_EOH_TEL`). Injected by the framework for executing SQL queries. |

## 4. CRUD Operations / Called Services

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

| CRUD | SC / CBS | SC Code | Entity / DB | Operation Description |
|------|----------|---------|-------------|----------------------|
| R | `JBSbatCommonDBInterface.setValue` | JDKStructuredMap | - | Pushes a bind variable value (string) into the parameter list for SQL execution. Called 3 times for phone number and two operation date values. |
| R | `db_KK_T_SVKEIUW_EOH_TEL.selectBySqlDefine` | (Framework SQL Access) | `KK_T_SVKEIUW_EOH_TEL` | Executes a pre-defined SELECT SQL statement (`TU_SELECT_002`) against the Service Contract Detail <eo Optical Phone> table. Returns matching records into the DB interface for subsequent retrieval via `selectNext()`. |

**Classification Rationale:**
- `setValue()` is a data-structure operation (appending bind values), classified as generic data manipulation (non-CRUD against a persistent entity).
- `selectBySqlDefine()` is a **Read (R)** operation — it issues a database query with no insert/update/delete semantics. The SQL key `TU_SELECT_002` maps to a pre-defined SELECT statement targeting the `KK_T_SVKEIUW_EOH_TEL` table.

## 5. Dependency Trace

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

No screen/batch entry points found within 8 hops. Direct callers found: 1 methods.
Terminal operations from this method: `setValue` [-], `setValue` [-], `setValue` [-], `selectBySqlDefine` [R] `KK_T_SVKEIUW_EOH_TEL`

| # | Caller (Screen/Batch) | Call Chain (Full Path to this Method) | Terminal (SC / CRUD / Entity) |
|---|----------------------|--------------------------------------|-------------------------------|
| 1 | Batch: `JBSbatTUBmpHaishiSodHakTrn` | `JBSbatTUBmpHaishiSodHakTrn.execute()` -> `executeKK_T_SVKEIUW_EOH_TEL_TU_SELECT_002` | `selectBySqlDefine [R] KK_T_SVKEIUW_EOH_TEL` |

**Caller Context:** The method is invoked from within the same class's `execute()` method (line 181) as part of a conditional branch that activates only when the service contract status (SVC_KEI_UCWK_STAT) equals `"910"` (解済済み — already terminated/resolved). In this scenario, the batch fetches optical phone service contract data to determine whether any promotional benefit (トクチウ) porting data exists — if the query returns null, it indicates no optical phone service data exists and the porting-in period has likely expired.

## 6. Per-Branch Detail Blocks

**Block 1** — [PROCESSING] `(Linear execution — no conditional branches) (L441)`

> Creates the bind-variable result list structure and populates it with the three parameter values extracted from the `param` array.

| # | Type | Code |
|---|------|------|
| 1 | SET | `paramList = new JBSbatCommonDBInterface()` // Create bind-variable result list [-> `JBSbatCommonDBInterface`] |
| 2 | EXEC | `paramList.setValue(param[0].toString())` // Push phone number (NTT_KEI_TEL_KAISEN_NO) as first bind value |
| 3 | EXEC | `paramList.setValue(param[1].toString())` // Push operation date (commonItem.getOpeDate()) as second bind value |
| 4 | EXEC | `paramList.setValue(param[2].toString())` // Push operation date (commonItem.getOpeDate()) as third bind value |

**Block 2** — [PROCESSING] `(Database access execution — no conditional branches) (L447)`

> Executes the pre-defined SQL SELECT query (`TU_SELECT_002`) against the `KK_T_SVKEIUW_EOH_TEL` table using the populated bind-variable list. Results are stored in the SQL access layer for retrieval by the caller via `selectNext()`.

| # | Type | Code |
|---|------|------|
| 1 | CALL | `db_KK_T_SVKEIUW_EOH_TEL.selectBySqlDefine(paramList, KK_T_SVKEIUW_EOH_TEL_TU_SELECT_002)` // Execute SELECT [R] `KK_T_SVKEIUW_EOH_TEL` [SQL KEY: `TU_SELECT_002`] |

## 7. Glossary

| Term | Type | Business Meaning |
|------|------|------------------|
| `NTT_KEI_TEL_KAISEN_NO` | Field | Phone number after number porting (改番電話番号) — the reformatted phone number following a number porting transfer between telecom providers |
| `SVC_KEI_UCWK_STAT` | Field | Service contract status (サービス契約詳細ステータス) — a status code where `910` means "already terminated/resolved" (解済済み) |
| `KK_T_SVKEIUW_EOH_TEL` | Table | Service Contract Detail <eo Optical Phone> (サービス契約詳細＜eo光電話＞) — the database table storing optical phone (Fiber To The Home) service contract line item records |
| `KK_T_SVC_KEI_UCWK` | Table | Service Contract Detail (サービス契約詳細) — the database table storing generic service contract line item records |
| `TU_SELECT_002` | SQL Key | SQL definition key identifier for the SELECT query targeting `KK_T_SVKEIUW_EOH_TEL` |
| SOD | Acronym | Service Order Data — the telecom order fulfillment entity used for number porting cancellation processing |
| eo Hikaden-denwa | Business term | eo Optical Phone (eo光電話) — K-Opticom's Fiber To The Home (FTTH) voice service |
| FTTH | Business term | Fiber To The Home — fiber-optic broadband internet service |
| 解済済み (Kai-zumi-zumi) | Japanese term | Already terminated/resolved — service contract status indicating cancellation is complete |
| トクチウ (Tokuchi) | Japanese term | Promotional benefit — incentive or benefit associated with number porting-in that may have an eligibility period |
| `commonItem.getOpeDate()` | Method | Returns the batch operation date (運用日) — the processing date used as a query predicate |
| `JBSbatCommonDBInterface` | Class | Common DB interface — a result-list-like data structure used as both a bind-variable container for SQL execution parameters and a result holder for query output |
| `JBSbatSQLAccess` | Class | SQL access layer — the framework class providing `selectBySqlDefine()` for executing pre-defined SQL statements |
| Number Porting Cancellation | Business process | The business operation of cancelling a service during number porting, involving SOD issuance and promotional benefit eligibility verification |