# Business Logic — JBSbatTUBmpKojiFinTrn.executeKK_T_ICJKN_SETTE_TU_SELECT_001() [11 LOC]

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

## 1. Role

### JBSbatTUBmpKojiFinTrn.executeKK_T_ICJKN_SETTE_TU_SELECT_001()

This method performs a **primary-key-based database SELECT** against the `KK_T_ICJKN_SETTE` (Temporary Advance Payment Settlement) table. It is a dedicated data retrieval routine used during batch processing of phone number assignment procedures. Specifically, it searches for a temporary advance payment settlement record identified by three bound variables: the service contract detail work number, the temporary payment fee number (hardcoded as a constant `TEL_WARIATE_CMS` meaning "Phone Assignment CMS"), and the application date (operational date). The method follows a **delegation pattern** — it accepts a flat `Object[]` array of bind variables, wraps them into a `JBSbatCommonDBInterface` parameter list, and delegates the actual SQL execution to the `JBSbatSQLAccess` instance (`db_KK_T_ICJKN_SETTE`) using a pre-defined SQL key (`TU_SELECT_001`). It serves as a **shared utility** within the batch service class, called exclusively by `insertBmpKoji()` to fetch the settlement record that will subsequently be used to derive values for registering a contract advance payment. The method is marked `private`, indicating it is an internal implementation detail of the batch processing workflow and is not exposed as a public service interface.

## 2. Processing Pattern (Detailed Business Logic)

```mermaid
flowchart TD
    START(["executeKK_T_ICJKN_SETTE_TU_SELECT_001 Object[] param"])
    CREATE["Create JBSbatCommonDBInterface paramList"]
    BIND0["paramList.setValue(param[0].toString)"]
    BIND1["paramList.setValue(param[1].toString)"]
    BIND2["paramList.setValue(param[2].toString)"]
    SELECT["db_KK_T_ICJKN_SETTE.selectBySqlDefine(paramList, TU_SELECT_001)"]
    END_NODE(["Return / Next"])

    START --> CREATE
    CREATE --> BIND0
    BIND0 --> BIND1
    BIND1 --> BIND2
    BIND2 --> SELECT
    SELECT --> END_NODE
```

**Step-by-step processing description:**

1. **Bind variable list generation** (Japanese comment: `バインド変数のリストを生成します` — "Generate the bind variable list"): A new `JBSbatCommonDBInterface` instance (`paramList`) is created to serve as a container for the SQL bind variables. This is the framework's standard parameter-passing mechanism for SQL execution.

2. **Bind variable binding (index 0)**: The first element of the `param` array (`param[0]`) is converted to a string and set as the first bind variable. This represents the **service contract detail work number** (`svc_kei_ucwk_no`), which uniquely identifies the service contract line item in the batch processing context.

3. **Bind variable binding (index 1)**: The second element (`param[1]`) is converted to a string and set. This represents the **temporary payment fee number** — in practice, this is always the constant value `TEL_WARIATE_CMS` ("Phone Number Assignment CMS"), indicating the fee type relates to phone number assignment services.

4. **Bind variable binding (index 2)**: The third element (`param[2]`) is converted to a string and set. This represents the **temporary payment fee applicable start/end date** (一時支払料金適用開始終了年月日), typically the operational date (`getOpeDate()`) of the batch run.

5. **DB access execution**: The `selectBySqlDefine` method is called on the `db_KK_T_ICJKN_SETTE` SQL access instance, passing the populated parameter list and the SQL key constant `KK_T_ICJKN_SETTE_TU_SELECT_001` (value: `"TU_SELECT_001"`). This triggers a SQL query against the `KK_T_ICJKN_SETTE` table using all three bind variables as the WHERE clause conditions.

6. **Return**: The method returns `void` — the query results are stored in the `JBSbatSQLAccess` instance's internal result cursor and retrieved via subsequent `selectNext()` calls by the caller (`insertBmpKoji()`).

## 3. Parameter Analysis

| No | Parameter Name | Type | Business Description |
|----|---------------|------|---------------------|
| 1 | `param` | `Object[]` | An array of 3 bind variable values for the database SELECT query. The array elements correspond to: (0) Service contract detail work number (`svc_kei_ucwk_no`) — the unique identifier for a service contract line item work instance; (1) Temporary payment fee number — a fixed code identifying the fee type (Phone Number Assignment CMS); (2) Temporary payment fee applicable start/end date — the effective date for the advance payment settlement, typically the batch operational date. |

**Instance fields read by this method:**

| Field | Type | Business Description |
|-------|------|---------------------|
| `db_KK_T_ICJKN_SETTE` | `JBSbatSQLAccess` | SQL access handler for the `KK_T_ICJKN_SETTE` table. Used to execute the SELECT query and store results for later iteration by the caller. |

**Constant used (resolved):**

| Constant | Value | Source Location | Business Meaning |
|----------|-------|-----------------|------------------|
| `KK_T_ICJKN_SETTE_TU_SELECT_001` | `"TU_SELECT_001"` | `JBSbatTUBmpKojiFinTrn.java:54` | SQL key identifying the SELECT query definition for primary-key-based lookup of the temporary advance payment settlement table. |

## 4. CRUD Operations / Called Services

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

| CRUD | SC / CBS | SC Code | Entity / DB | Operation Description |
|------|----------|---------|-------------|----------------------|
| R | `JBSbatSQLAccess.selectBySqlDefine` | — | `KK_T_ICJKN_SETTE` | Performs a database SELECT against the temporary advance payment settlement table using the `TU_SELECT_001` SQL key and the provided bind variable parameter list. Returns a result cursor for the caller to iterate via `selectNext()`. |

**CRUD Classification:** This method performs exactly one database operation — a **Read (R)** — via `selectBySqlDefine`. It does not create, update, or delete any records. The query retrieves a single row (or null if no match) from `KK_T_ICJKN_SETTE` matching the three primary key columns.

## 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: `selectBySqlDefine` [R] `KK_T_ICJKN_SETTE`

### Caller Analysis

| # | Caller (Screen/Batch) | Call Chain (Full Path to this Method) | Terminal (SC / CRUD / Entity) |
|---|----------------------|--------------------------------------|-------------------------------|
| 1 | Batch: `JBSbatTUBmpKojiFinTrn.insertBmpKoji()` | `insertBmpKoji()` (prepares 3-element param array with svc_kei_ucwk_no, TEL_WARIATE_CMS, opDate) -> `executeKK_T_ICJKN_SETTE_TU_SELECT_001(param)` | `selectBySqlDefine [R] KK_T_ICJKN_SETTE` |

**Caller context:** The `insertBmpKoji()` method (Phone Number Assignment Procedure Registration Processing) constructs the parameter array by extracting the service contract detail work number from the input message (`inMap.getString(JBSbatTU_T_BMP_KOJI.SVC_KEI_UCWK_NO)`), uses the constant `JTUStrConst.TEL_WARIATE_CMS` for the temporary payment fee number, and uses the operational date from `super.commonItem.getOpeDate()` for the application date. After calling `executeKK_T_ICJKN_SETTE_TU_SELECT_001()`, the caller iterates over the result set using `db_KK_T_ICJKN_SETTE.selectNext()` to retrieve the fetched settlement record and uses its data to populate values for the subsequent contract advance payment registration.

## 6. Per-Branch Detail Blocks

This method contains **no conditional branches** (if/else, switch, loops, try/catch). It is a linear, sequential execution flow.

**Block 1** — [LINEAR SEQUENCE] (L346–L354)

> Bind variable list creation, parameter binding, and DB SELECT execution — no branching logic.

| # | Type | Code |
|---|------|------|
| 1 | SET | `paramList = new JBSbatCommonDBInterface()` // Create bind variable list container [Java object instantiation] |
| 2 | EXEC | `paramList.setValue(param[0].toString())` // Set bind variable 0: Service contract detail work number |
| 3 | EXEC | `paramList.setValue(param[1].toString())` // Set bind variable 1: Temporary payment fee number (TEL_WARIATE_CMS) |
| 4 | EXEC | `paramList.setValue(param[2].toString())` // Set bind variable 2: Temporary payment fee applicable start/end date |
| 5 | CALL | `db_KK_T_ICJKN_SETTE.selectBySqlDefine(paramList, KK_T_ICJKN_SETTE_TU_SELECT_001)` // Execute DB SELECT on KK_T_ICJKN_SETTE using SQL key TU_SELECT_001 [R] |

## 7. Glossary

| Term | Type | Business Meaning |
|------|------|------------------|
| `KK_T_ICJKN_SETTE` | Entity/Table | Temporary Advance Payment Settlement table — stores records of advance payment settlements for service contracts. The `T_` prefix indicates a temporary/intermediate table used during batch processing. |
| `ICJKN` | Acronym | Advance Payment (一時金) — a one-time advance payment or fee applied to a service contract. |
| `SETTE` | Acronym | Settlement — the settlement/registration record associated with an advance payment. |
| `TU_SELECT_001` | SQL Key | SQL definition key for the primary-key-based SELECT query on the `KK_T_ICJKN_SETTE` table. "TU" indicates Temporary Advance (一時金). |
| `svc_kei_ucwk_no` | Field | Service detail work number — the unique work instance ID for a service contract line item, used to identify which service contract record to look up. |
| `TEL_WARIATE_CMS` | Constant | Phone Number Assignment CMS — a fixed code identifying the fee type as related to phone number assignment services. "Wariate" means assignment/allocation. |
| `insertBmpKoji` | Method | Phone Number Assignment Procedure Registration Processing (電話番号割当手順料登録処理) — the batch method that calls this SELECT routine to fetch advance payment settlement data before registering contract advance payment details. |
| `JBSbatSQLAccess` | Class | SQL access framework class — provides database query and update operations for batch processing. `selectBySqlDefine()` executes a parameterized SQL query using a predefined SQL key. |
| `JBSbatCommonDBInterface` | Class | Common database interface class — used as a container for SQL bind variables passed to `JBSbatSQLAccess` methods. |
| `JBSbatTUBmpKojiFinTrn` | Class | Batch service for phone number assignment final transaction processing (電話番号割当手順処理) — the parent batch service class handling phone number assignment procedures. |
| `Koji` | Term | Procedure/Steps (手続) — refers to a procedural workflow, specifically phone number assignment procedures. |
| `opDate` | Field | Operational date — the processing date used for the batch run, typically the current business date. |
| `selectNext()` | Method | Iteration method on `JBSbatSQLAccess` that retrieves the next row from the result cursor populated by a prior `selectBySqlDefine()` call. |
| `param[1]` bind variable | Field | Temporary payment fee number — identifies the fee type; in this method's usage, it is always `TEL_WARIATE_CMS` (Phone Number Assignment CMS). |
| `param[2]` bind variable | Field | Temporary payment fee applicable start/end date — the effective date range (start and end) for the advance payment settlement, typically the batch operational date. |