# Business Logic — JBSbatKKAdChgPlaceNoChgRnki.getItemvalueMap() [23 LOC]

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

## 1. Role

### JBSbatKKAdChgPlaceNoChgRnki.getItemvalueMap()

This method serves as a **localized error message resource provider** for the Place Number Change (with No Rank Change) batch process. It generates a `HashMap<String, String>` that maps error message keys to their corresponding Japanese display values, following a key naming convention of `TXT-KKIFM270-INF1.<FIELD_NAME>` where `KKIFM270` identifies the screen/form module and `INF1` denotes the information section. The method is a **builder-pattern utility** — it creates and populates a map in a flat, linear fashion without any conditional logic or branching. Its role in the larger system is to support **internationalization (i18n) / localization (l10n)** of error messages on the place number change linkage screen (KKIFM270), providing human-readable Japanese labels for validation errors such as equipment model code, manufacturing number, change reason code, installation destination location number, and service contract number. It is called directly by the batch's own `execute()` method, meaning it is tightly coupled to the `JBSbatKKAdChgPlaceNoChgRnki` batch and serves as a **screen-facing message provider** for error display on the associated web interface.

## 2. Processing Pattern (Detailed Business Logic)

```mermaid
flowchart TD
    START(["getItemvalueMap()"])
    START --> CREATE_MAP["Create HashMap<String, String> itemvalueMap"]
    CREATE_MAP --> PUT_1["Put key: TXT-KKIFM270-INF1.TAKNKIKI_MODEL_CD<br/>value: 場所番号変更連携ファイル.屋内機器型式コード"]
    PUT_1 --> PUT_2["Put key: TXT-KKIFM270-INF1.TAKNKIKI_MODEL_CD<br/>value (overwrite: same)"]
    PUT_2 --> PUT_3["Put key: TXT-KKIFM270-INF1.TAKNKIKI_MODEL_CD<br/>value (overwrite: same)"]
    PUT_3 --> PUT_4["Put key: TXT-KKIFM270-INF1.KIKI_SEIZO_NO<br/>value: 場所番号変更連携ファイル.機器製造番号"]
    PUT_4 --> PUT_5["Put key: TXT-KKIFM270-INF1.KIKI_SEIZO_NO<br/>value (overwrite: same)"]
    PUT_5 --> PUT_6["Put key: TXT-KKIFM270-INF1.KIKI_SEIZO_NO<br/>value (overwrite: same)"]
    PUT_6 --> PUT_7["Put key: TXT-KKIFM270-INF1.KIKI_CHG_RSN_CD<br/>value: 場所番号変更連携ファイル.機器変更理由コード"]
    PUT_7 --> PUT_8["Put key: TXT-KKIFM270-INF1.KIKI_CHG_RSN_CD<br/>value (overwrite: same)"]
    PUT_8 --> PUT_9["Put key: TXT-KKIFM270-INF1.KIKI_CHG_RSN_CD<br/>value (overwrite: same)"]
    PUT_9 --> PUT_10["Put key: TXT-KKIFM270-INF1.KIKI_STC_SAKI_PLACE_NO<br/>value: 場所番号変更連携ファイル.機器設置先場所番号"]
    PUT_10 --> PUT_11["Put key: TXT-KKIFM270-INF1.KIKI_STC_SAKI_PLACE_NO<br/>value (overwrite: same)"]
    PUT_11 --> PUT_12["Put key: TXT-KKIFM270-INF1.KIKI_STC_SAKI_PLACE_NO<br/>value (overwrite: same)"]
    PUT_12 --> PUT_13["Put key: TXT-KKIFM270-INF1.SVC_KEI_NO<br/>value: 場所番号変更連携ファイル.サービス契約番号"]
    PUT_13 --> PUT_14["Put key: TXT-KKIFM270-INF1.SVC_KEI_NO<br/>value (overwrite: same)"]
    PUT_14 --> PUT_15["Put key: TXT-KKIFM270-INF1.SVC_KEI_NO<br/>value (overwrite: same)"]
    PUT_15 --> RETURN["Return itemvalueMap"]
```

**Notes on processing pattern:**
- The method follows a purely **linear sequence** with no conditional branches (if/else, switch/case, loops).
- Each of the 5 unique keys is inserted **3 consecutive times** with identical values, causing two of each insert to overwrite the prior. This is likely a code-generation artifact (e.g., copy-paste duplication from template generation) and results in each key holding only the final value.
- The effective result is a map of **5 unique key-value pairs**.

## 3. Parameter Analysis

| No | Parameter Name | Type | Business Description |
|----|---------------|------|---------------------|
| - | (none) | - | This method takes no parameters. It is a pure factory method that constructs and returns a new map from hardcoded error message key-value pairs. |

**No instance fields or external state** are read by this method. It is entirely stateless and deterministic.

## 4. CRUD Operations / Called Services

This method performs **no CRUD operations** and calls **no external services, CBS, or SC components**. It is a pure data builder that only manipulates local objects:

| CRUD | SC / CBS | SC Code | Entity / DB | Operation Description |
|------|----------|---------|-------------|----------------------|
| (none) | - | - | - | No database access, no service component calls. This method only creates and populates a local HashMap. |

## 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: -

| # | Caller (Screen/Batch) | Call Chain (Full Path to this Method) | Terminal (SC / CRUD / Entity) |
|---|----------------------|--------------------------------------|-------------------------------|
| 1 | Batch: JBSbatKKAdChgPlaceNoChgRnki | `execute()` -> `getItemvalueMap()` | (none — no terminal CRUD from this method) |

**Notes:**
- The only caller is the batch class's own `execute()` method.
- No screen entry points (KKSV*) or intermediate CBS layers route through this method.
- Since this method has no downstream calls, its terminal operations column is empty.

## 6. Per-Branch Detail Blocks

This method has **no control-flow branches** (no if/else, switch/case, loops, or try/catch). The entire body is a flat sequence of map put operations. It is documented as a single block.

**Block 1** — [SEQUENTIAL PROCESS] `(no condition)` (L373)

> Create a new empty HashMap and populate it with 15 put operations (5 keys, each repeated 3 times with identical values).

| # | Type | Code |
|---|------|------|
| 1 | SET | `HashMap<String, String> itemvalueMap = new HashMap<String, String>();` // Create new empty map [-> JAVASCRIPT: java.util.HashMap] |
| 2 | SET | `itemvalueMap.put("TXT-KKIFM270-INF1.TAKNKIKI_MODEL_CD", "場所番号変更連携ファイル.屋内機器型式コード")` // Insert error message key-value [-> overwrite 1 of 3] |
| 3 | SET | `itemvalueMap.put("TXT-KKIFM270-INF1.TAKNKIKI_MODEL_CD", "場所番号変更連携ファイル.屋内機器型式コード")` // Same key-value [-> overwrite 2 of 3] |
| 4 | SET | `itemvalueMap.put("TXT-KKIFM270-INF1.TAKNKIKI_MODEL_CD", "場所番号変更連携ファイル.屋内機器型式コード")` // Same key-value [-> overwrite 3 of 3] |
| 5 | SET | `itemvalueMap.put("TXT-KKIFM270-INF1.KIKI_SEIZO_NO", "場所番号変更連携ファイル.機器製造番号")` // Insert error message key-value [-> overwrite 1 of 3] |
| 6 | SET | `itemvalueMap.put("TXT-KKIFM270-INF1.KIKI_SEIZO_NO", "場所番号変更連携ファイル.機器製造番号")` // Same key-value [-> overwrite 2 of 3] |
| 7 | SET | `itemvalueMap.put("TXT-KKIFM270-INF1.KIKI_SEIZO_NO", "場所番号変更連携ファイル.機器製造番号")` // Same key-value [-> overwrite 3 of 3] |
| 8 | SET | `itemvalueMap.put("TXT-KKIFM270-INF1.KIKI_CHG_RSN_CD", "場所番号変更連携ファイル.機器変更理由コード")` // Insert error message key-value [-> overwrite 1 of 3] |
| 9 | SET | `itemvalueMap.put("TXT-KKIFM270-INF1.KIKI_CHG_RSN_CD", "場所番号変更連携ファイル.機器変更理由コード")` // Same key-value [-> overwrite 2 of 3] |
| 10 | SET | `itemvalueMap.put("TXT-KKIFM270-INF1.KIKI_CHG_RSN_CD", "場所番号変更連携ファイル.機器変更理由コード")` // Same key-value [-> overwrite 3 of 3] |
| 11 | SET | `itemvalueMap.put("TXT-KKIFM270-INF1.KIKI_STC_SAKI_PLACE_NO", "場所番号変更連携ファイル.機器設置先場所番号")` // Insert error message key-value [-> overwrite 1 of 3] |
| 12 | SET | `itemvalueMap.put("TXT-KKIFM270-INF1.KIKI_STC_SAKI_PLACE_NO", "場所番号変更連携ファイル.機器設置先場所番号")` // Same key-value [-> overwrite 2 of 3] |
| 13 | SET | `itemvalueMap.put("TXT-KKIFM270-INF1.KIKI_STC_SAKI_PLACE_NO", "場所番号変更連携ファイル.機器設置先場所番号")` // Same key-value [-> overwrite 3 of 3] |
| 14 | SET | `itemvalueMap.put("TXT-KKIFM270-INF1.SVC_KEI_NO", "場所番号変更連携ファイル.サービス契約番号")` // Insert error message key-value [-> overwrite 1 of 3] |
| 15 | SET | `itemvalueMap.put("TXT-KKIFM270-INF1.SVC_KEI_NO", "場所番号変更連携ファイル.サービス契約番号")` // Same key-value [-> overwrite 2 of 3] |
| 16 | SET | `itemvalueMap.put("TXT-KKIFM270-INF1.SVC_KEI_NO", "場所番号変更連携ファイル.サービス契約番号")` // Same key-value [-> overwrite 3 of 3] |
| 17 | RETURN | `return itemvalueMap;` // Return the populated map |

**Effective result:** After all overwrites, the map contains exactly 5 entries (one per unique key). The redundant triple-insertion of each key does not affect the final state but suggests a code-generation or copy-paste artifact.

## 7. Glossary

| Term | Type | Business Meaning |
|------|------|------------------|
| `TXT-KKIFM270-INF1` | Prefix | Error message key prefix — `TXT` denotes text/message type, `KKIFM270` is the screen/form module ID for the place number change linkage interface, `INF1` is the information section within that form |
| `TAKNKIKI_MODEL_CD` | Field | Indoor equipment model code — the model/code of indoor equipment at the service location (屋内機器型式コード) |
| `KIKI_SEIZO_NO` | Field | Equipment manufacturing number — unique serial/manufacturer number of the equipment (機器製造番号) |
| `KIKI_CHG_RSN_CD` | Field | Equipment change reason code — classification code for why the equipment is being changed (機器変更理由コード) |
| `KIKI_STC_SAKI_PLACE_NO` | Field | Equipment installation destination location number — the new location number where equipment will be installed (機器設置先場所番号) |
| `SVC_KEI_NO` | Field | Service contract number — the identifier for a service contract line item (サービス契約番号) |
| 場所番号変更連携ファイル | Business term | Place Number Change Linkage File — a file or data structure used in the process of changing the location number (place number) for equipment in the telecom service system |
| JBSbatKKAdChgPlaceNoChgRnki | Class | Place Number Change, No Rank Change batch service — a batch process that handles location number changes without modifying the service rank (JKKAd = Location Change Addition, ChgPlace = Change Place, NoChgRnki = No Change Rank) |
| getItemvalueMap | Method | Generates the error message key-value map for the place number change batch, used for displaying localized error messages on the UI |

---