# Business Logic — JBSbatACTaiikiLmtTchiTrgtMake.executeAC_M_TSRYO_CKTCSETE_AC_SELECT_002() [10 LOC]

| Field | Value |
|-------|-------|
| Fully Qualified Name | `eo.business.service.JBSbatACTaiikiLmtTchiTrgtMake` |
| Layer | Batch (package: `eo.business.service`, extends `JBSbatBusinessService`) |
| Module | `service` (Package: `eo.business.service`) |

## 1. Role

### JBSbatACTaiikiLmtTchiTrgtMake.executeAC_M_TSRYO_CKTCSETE_AC_SELECT_002()

This method serves as the **database access accessor** for retrieving communication volume exceeding notification settings from the `AC_M_TSRYO_CKTCSETE` table. It is an internal helper method invoked during the batch process that builds the target list of customers eligible for area-limited communication volume notifications. The method follows a standard batch DAO delegation pattern: it packages bind variables into a `JBSbatCommonDBInterface` object and delegates the actual SQL execution to the `JBSbatSQLAccess` instance (`db_AC_M_TSRYO_CKTCSETE`). Its role within the larger system is to provide a cleanly separated, single-responsibility data access point that the `getTsryoCkTcSeteMap()` method calls to fetch notification settings used for determining which customers should receive volume-overrun alerts. As a private method, it is not a public API but an implementation detail of the batch target-making service.

## 2. Processing Pattern (Detailed Business Logic)

```mermaid
flowchart TD
    START(["executeAC_M_TSRYO_CKTCSETE_AC_SELECT_002(param)"])
    START --> SETUP["Generate bind variable list<br/>paramList = new JBSbatCommonDBInterface()"]
    SETUP --> BIND0["Set bind var[0]<br/>param[0].toString() - notification type code"]
    BIND0 --> BIND1["Set bind var[1]<br/>param[1].toString() - batch operation date"]
    BIND1 --> EXEC["Execute DB access<br/>db_AC_M_TSRYO_CKTCSETE.selectBySqlDefine(paramList, AC_SELECT_002)"]
    EXEC --> END_RETURN(["Return (void)"])
```

**Processing flow description:**

1. **Bind variable list generation** — A new `JBSbatCommonDBInterface` instance (`paramList`) is created to hold the bind variables that will be passed to the SQL query. This is a standard batch framework pattern for parameterizing database access.
2. **Set bind variable 0** — The first element of the input `param` array is converted to a `String` and set as the first bind variable. This value represents the **notification type code** (上限超過通知種別コード), which filters notification settings by their classification type.
3. **Set bind variable 1** — The second element of the input `param` array is converted to a `String` and set as the second bind variable. This value represents the **batch operation date** (バッチ運用日), which filters or scopes the query results to the current batch processing date.
4. **Execute DB access** — The `selectBySqlDefine()` method on the `db_AC_M_TSRYO_CKTCSETE` SQL access object is called, passing the bind variable list and the SQL definition key `AC_SELECT_002`. This executes a parameterized SELECT query against the `AC_M_TSRYO_CKTCSETE` table.
5. **Return** — The method returns `void`; no transformation or mapping of results is performed at this layer.

## 3. Parameter Analysis

| No | Parameter Name | Type | Business Description |
|----|---------------|------|---------------------|
| 1 | `param` | `Object[]` | An array of bind variable values for the SQL query. Index 0 is the notification type code (上限超過通知種別コード) which categorizes the type of volume-overrun notification. Index 1 is the batch operation date (バッチ運用日) which specifies the processing date for filtering notification settings. |

**Instance fields read by this method:**

| Field | Type | Business Description |
|-------|------|---------------------|
| `db_AC_M_TSRYO_CKTCSETE` | `JBSbatSQLAccess` | The database access object initialized in `initial()` for querying the `AC_M_TSRYO_CKTCSETE` table. It wraps SQL execution with the batch framework's logging, transaction, and connection management. |

## 4. CRUD Operations / Called Services

| CRUD | SC / CBS | SC Code | Entity / DB | Operation Description |
|------|----------|---------|-------------|----------------------|
| R | `JBSbatSQLAccess.selectBySqlDefine` | - | `AC_M_TSRYO_CKTCSETE` | Executes a parameterized SELECT query using the SQL definition key `AC_SELECT_002` to retrieve communication volume exceeding notification settings matching the given notification type code and batch operation date. |
| - | `JBSbatCommonDBInterface.setValue` | - | - | Sets bind variable values in the parameter list object for the SQL query. Called twice for the two bind parameters. |

**Classification rationale:**
- This method is a **Read (R)** operation only. It invokes `selectBySqlDefine()` which performs a SQL SELECT against the `AC_M_TSRYO_CKTCSETE` table. No data is created, updated, or deleted.

## 5. Dependency Trace

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

No screen/batch entry points found within 8 hops. Direct callers found: 1 method.
Terminal operations from this method: `selectBySqlDefine` (R) `AC_M_TSRYO_CKTCSETE`

| # | Caller (Screen/Batch) | Call Chain (Full Path to this Method) | Terminal (SC / CRUD / Entity) |
|---|----------------------|--------------------------------------|-------------------------------|
| 1 | Batch: `JBSbatACTaiikiLmtTchiTrgtMake.getTsryoCkTcSeteMap()` | `getTsryoCkTcSeteMap()` → `executeAC_M_TSRYO_CKTCSETE_AC_SELECT_002(param)` | `selectBySqlDefine [R] AC_M_TSRYO_CKTCSETE` |

**Notes:** This method is a private helper called exclusively by `getTsryoCkTcSeteMap()` within the same class. The `getTsryoCkTcSeteMap()` method is invoked from the `initial()` method, which is the batch service initialization entry point. No external screens or CBS layers call this method directly.

## 6. Per-Branch Detail Blocks

> This method has no conditional branches (no if/else, switch, or loops). It is a straightforward linear execution: prepare bind variables, then delegate to DB access.

**Block 1** — [LINEAR EXECUTION] (L187)

> Generate the bind variable list and set the two required parameters.

| # | Type | Code |
|---|------|------|
| 1 | SET | `paramList = new JBSbatCommonDBInterface()` // Create bind variable list object [-> JBSbatCommonDBInterface] |
| 2 | EXEC | `paramList.setValue(param[0].toString())` // Set first bind var — notification type code [上限超過通知種別コード] |
| 3 | EXEC | `paramList.setValue(param[1].toString())` // Set second bind var — batch operation date [バッチ運用日] |

**Block 2** — [LINEAR EXECUTION] (L195)

> Execute the SQL SELECT against the notification settings table.

| # | Type | Code |
|---|------|------|
| 1 | CALL | `db_AC_M_TSRYO_CKTCSETE.selectBySqlDefine(paramList, AC_M_TSRYO_CKTCSETE_AC_SELECT_002)` // Execute parameterized SELECT [SQLKEY=AC_SELECT_002] [Table=AC_M_TSRYO_CKTCSETE] |

## 7. Glossary

| Term | Type | Business Meaning |
|------|------|------------------|
| `AC_M_TSRYO_CKTCSETE` | Table | Communication Volume Exceeding Notification Settings — master table storing configurations for when and how to notify customers about exceeding their communication volume limits |
| `AC_M_TSRYO_CKTCSETE_AC_SELECT_002` | Constant | SQL definition key for the SELECT query on the notification settings table |
| `D_TBL_NAME_AC_M_TSRYO_CKTCSETE` | Constant | Table name constant resolving to `"AC_M_TSRYO_CKTCSETE"` |
| `USECASE_ID` | Constant | Use case identifier `"ACSV0035"` — FTTH Communication Volume Overrun Registration |
| `SC_TITLE` | Constant | SC (Service Component) title `"ACSV003501SC"` — FTTH Communication Volume Overrun Registration |
| `tsryoCkTcSeteMap` | Field | Communication volume exceeding notification settings map — a `HashMap<String, BigDecimal>` holding retrieved notification settings keyed by some identifier with decimal values |
| 上限超過通知種別コード | Field | Notification type code for volume overrun — classifies the type/category of communication volume exceeding notification (e.g., email alert, SMS, portal display) |
| バッチ運用日 | Field | Batch operation date — the processing date used as a filter/scoping parameter for the notification settings query |
| JBSbatCommonDBInterface | Framework Class | Batch framework data interface for holding SQL bind variables; used to pass typed parameters to database access methods |
| JBSbatSQLAccess | Framework Class | Batch framework database access abstraction; wraps SQL execution with connection management, logging, and transaction handling |
| selectBySqlDefine | Framework Method | Batch framework method that executes a parameterized SQL SELECT using a pre-defined SQL mapping (identified by SQL key) and a list of bind variables |
| 通信量超過通知設定 | Domain term | Communication Volume Exceeding Notification Settings — the business concept this method queries: settings that define thresholds, notification methods, and conditions for alerting customers about over-limit usage |