# Business Logic — JSCSV002601CC.editErrorInfo() [5 LOC]

| Field | Value |
|-------|-------|
| Fully Qualified Name | `com.fujitsu.futurity.bp.custom.common.JSCSV002601CC` |
| Layer | CC / Common Component (Cross-cutting utility in the Business Process custom layer) |
| Module | `common` (Package: `com.fujitsu.futurity.bp.custom.common`) |

## 1. Role

### JSCSV002601CC.editErrorInfo()

This method serves as a **no-op pass-through stub** within the business process (BP) check infrastructure for screen operation SCSV0026. Its documented purpose (from the Javadoc: 「ＢＰチェック結果を編集する。」—"Edit BP check results") is to transform or enrich error information returned from a service interface call before propagating it back into the request parameter map. However, the implementation explicitly comments 「BPチェックを行わない為、チェック結果の編集も不要」—"BP check is not performed, so editing check results is unnecessary," meaning the method currently accepts three parameters (`param`, `caanMsgs`, `returnCode`) and returns `param` completely unchanged.

The method implements a **delegation / callback pattern**: it is invoked by the BP check orchestrator (`SCSV0026_SCSV0026OPBPCheck.invokeCheck()`) at a fixed point in the check pipeline to allow custom error-info transformation. Although it currently does nothing, its design anticipates future branching logic that could inspect the `returnCode`, process `caanMsgs` template messages, or modify error metadata in the `param` control map. As a common component, it is a shared hook in the BP check framework rather than a screen-specific entry point.

## 2. Processing Pattern (Detailed Business Logic)

```mermaid
flowchart TD
    START(["editErrorInfo(params)"])
    PASS_THROUGH(["Return param unchanged"])
    END_NODE(["Return / Next"])

    START --> PASS_THROUGH --> END_NODE
```

The method contains a single processing path with no conditional branches, loops, or external calls. It unconditionally passes `param` through to the caller. No constant resolution is required because there are no conditional evaluations in the source.

## 3. Parameter Analysis

| No | Parameter Name | Type | Business Description |
|----|---------------|------|---------------------|
| 1 | `param` | `IRequestParameterReadWrite` | The request parameter map carrying the full business context for screen SCSV0026 — includes control maps, error info lists, operator ID, and view ID. This is the carrier object passed through unchanged. |
| 2 | `caanMsgs` | `CAANMsg[]` | An array of CAAN message templates produced by the service IF (interface) check operation. These templates contain formatted error/warning messages keyed by error code. Currently unused by this method — the array is accepted for future error-info enrichment logic. |
| 3 | `returnCode` | `Integer` | The return code from the service IF check invocation. Typically `0` for success, non-zero for specific failure conditions. Currently unused — the method does not inspect or act on this value. |

**External state / instance fields:** None. This method is fully stateless — it does not read any instance fields, static state, or external services.

## 4. CRUD Operations / Called Services

This method makes **no method calls** and performs **no CRUD operations**. It is a pure pass-through with no data access, no service component invocations, and no database interaction.

| CRUD | SC / CBS | SC Code | Entity / DB | Operation Description |
|------|----------|---------|-------------|----------------------|
| — | *(none)* | — | — | No operations — method is a no-op stub |

## 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 | CBS: SCSV0026_SCSV0026OPBPCheck | `invokeCheck` → `jscsv002601cc.editErrorInfo(param, caanMsgs, returnCode)` | — |

**Caller context (`SCSV0026_SCSV0026OPBPCheck.invokeCheck()`):**
The caller executes a business process check for screen operation SCSV0026. The flow is:
1. Invoke the service IF check (`invoker.invokeCheck(inMsg)`)
2. Extract output templates and return code
3. Call `editErrorInfo()` to allow custom error-info transformation
4. Retrieve and merge error info via `TemplateErrorUtil.getErrorInfo()`
5. Set the error info back into the control map
6. If error list is non-empty, throw an exception

This method is the step-3 hook in that pipeline. Currently it is a no-op, but the architecture anticipates it being the place where custom error-info enrichment (e.g., localization, filtering, additional field population) would be placed.

## 6. Per-Branch Detail Blocks

**Block 1** — [RETURN] `(no condition)` (L204)

> The method contains a single return statement. There are no branches, loops, or method calls.

| # | Type | Code |
|---|------|------|
| 1 | RETURN | `return param;` // BP check is not performed, so editing check results is unnecessary (BPチェックを行わない為、チェック結果の編集も不要) |

No nested blocks exist — the method body consists of only the Javadoc comment block, the method signature, and a single-line return statement.

## 7. Glossary

| Term | Type | Business Meaning |
|------|------|------------------|
| BP | Acronym | Business Process — the application's business logic validation and processing layer |
| BP Check | Business term | Business Process check — a validation phase that verifies data integrity, authorization, and business rules before a screen operation proceeds |
| CAANMsg | Technical | CAAN message — a standardized message template object used for error/warning messages in the BP framework. Contains formatted text and error codes. |
| IRequestParameterReadWrite | Technical | Interface for bidirectional request parameter access — carries the full request context including control maps, form data, and error lists between BP components |
| SCSV0026 | Screen code | Screen operation code — the specific screen/operation being configured (SCSV prefix indicates a screen operation in the Fujitsu framework) |
| SCCode | Business term | Service Component code — a naming convention for service layer components (e.g., EKK0361A010SC) |
| CBS | Acronym | Component Business Service — the component layer in the application architecture that delegates to SC (Service Component) layers |
| invokeCheck | Method | The BP check invocation method that orchestrates the full check pipeline for a screen operation |
| TemplateErrorUtil | Component | Utility class for extracting and merging error information from check output maps |
| returnCode | Field | Integer return code from a service IF call — `0` typically indicates success, non-zero indicates specific error conditions |
| controlMap | Field | A HashMap-based structure within IRequestParameterReadWrite that stores typed business data by key (e.g., ERROR_INFO, OPERATOR_ID, REQ_VIEWID) |