# Business Logic — Mover.getStringArray() [11 LOC]

| Field | Value |
|-------|-------|
| Fully Qualified Name | `eo.web.webview.KKW01021SF.Mover` |
| Layer | Utility (Web View Helper) |
| Module | `KKW01021SF` (Package: `eo.web.webview.KKW01021SF`) |

## 1. Role

### Mover.getStringArray()

This method is a utility data extraction function that reads a variable-length string array from a structured data bean and returns it as a standard Java `String[]`. It operates in the web-view utility layer, serving as a bridge between the platform's data bean abstraction (where array data is stored in an indexed, bean-managed format) and standard Java arrays that consuming code can iterate over or pass to other APIs.

The method follows a simple routing/dispatch pattern — it delegates to two helper methods on the same `Mover` class: `getArrayCount()` to determine how many elements exist, and `getStringAt()` to fetch each element by index. This three-step pattern (count → fetch → collect) is the canonical way the framework serializes indexed bean data into standard arrays.

Its role in the larger system is as a shared data-transformation utility called from the `getBeanMapFromDataBean()` method within the same `Mover` class. When the screen's data bean contains a `StructureType.STRINGS` field, the caller dispatches to `getStringArray()` to materialize that field into a `String[]`. The method is agnostic to the business domain — it does not inspect or interpret the string contents, making it a generic, reusable utility applicable to any screen or business process that stores string arrays in the data bean.

The method handles a single linear control path with no conditional branches — it always executes the same count-fetch-collect cycle regardless of input values.

## 2. Processing Pattern (Detailed Business Logic)

```mermaid
flowchart TD
    START(["getStringArray(bean, item)"])
    STEP1["Get count from data bean: getArrayCount(bean, item)"]
    STEP2["Initialize ArrayList<String> result with capacity count"]
    STEP3["Loop: for i = 0 to count - 1"]
    STEP4["Get string element: getStringAt(bean, item, i)"]
    STEP5["Add element to result list"]
    STEP6["Increment i, continue loop"]
    STEP7["Convert result ArrayList to String[]"]
    END_NODE(["Return String[]"])

    START --> STEP1
    STEP1 --> STEP2
    STEP2 --> STEP3
    STEP3 --> STEP4
    STEP4 --> STEP5
    STEP5 --> STEP6
    STEP6 --> STEP3
    STEP3 -->|i >= count| STEP7
    STEP7 --> END_NODE
```

## 3. Parameter Analysis

| No | Parameter Name | Type | Business Description |
|----|---------------|------|---------------------|
| 1 | `bean` | `X31SDataBeanAccess` | The data bean access object that provides indexed retrieval of screen data. This is the platform's abstraction over the form/model data submitted by the UI. It holds named, index-structured data that represents the current state of the web screen's business data. |
| 2 | `item` | `String` | The property key (field name) within the data bean that identifies which string array to retrieve. This corresponds to a specific structured field on the screen's data model, such as a list of service detail codes, item identifiers, or text fields stored as indexed arrays. |

## 4. CRUD Operations / Called Services

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

| CRUD | SC / CBS | SC Code | Entity / DB | Operation Description |
|------|----------|---------|-------------|----------------------|
| R | `Mover.getArrayCount` | Mover | X31SDataBean | Reads the count of indexed array elements from the data bean for the given `item` key. |
| R | `Mover.getStringAt` | Mover | X31SDataBean | Reads a single string element at the specified index from the data bean for the given `item` key. |
| - | `ArrayList.toArray` | Java Collections | - | Converts the internally collected `ArrayList<String>` into a raw `String[]` array. |

**How to classify:**
- **R** (Read): `getArrayCount()` and `getStringAt()` are both read-only data bean accessors — they extract values from the in-memory data bean without modifying any external state. No database or entity writes occur.

## 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: `getArrayCount` [R], `getStringAt` [R] |

| # | Caller (Screen/Batch) | Call Chain (Full Path to this Method) | Terminal (SC / CRUD / Entity) |
|---|----------------------|--------------------------------------|-------------------------------|
| 1 | Mover.getBeanMapFromDataBean | `getBeanMapFromDataBean` -> `getStringArray` | `getArrayCount [R] X31SDataBean`, `getStringAt [R] X31SDataBean` |

**Caller detail:**

`getBeanMapFromDataBean()` is a structural extraction method within the same `Mover` class. It iterates over a `structure` object array that defines the expected field layout of the data bean. For each field, it resolves the `StructureType` (e.g., `STRING`, `LONG`, `STRINGS`, `DATABEAN`, `BOOLEANS`) via a `switch` statement. When the type is `STRINGS`, it calls `getStringArray(bean, item)` to materialize the indexed string data into a standard Java `String[]`, then stores it in the resulting `BeanMap`.

No screen entry points (KKSV*) or batch entry points were found within 8 hops of this method in the code graph, indicating it operates as a deep-utility helper rather than a primary business logic entry point.

## 6. Per-Branch Detail Blocks

### Block 1 — LINEAR `(data bean array extraction)` (L1275)

> Retrieves the count of string elements stored in the data bean for the given `item` key, then fetches each element into an ArrayList before converting to a `String[]`.

| # | Type | Code |
|---|------|------|
| 1 | CALL | `int count = getArrayCount(bean, item);` // Retrieve the number of indexed elements for this item from the data bean |
| 2 | SET | `ArrayList<String> result = new ArrayList<String>(count);` // Create result list pre-sized to avoid reallocation [-> CONSTANT: count from data bean] |
| 3 | FOR | `for (int i = 0; i < count; i++)` // Iterate from index 0 up to (but not including) count |
| 4 | SET | `String element = getStringAt(bean, item, i);` // Fetch the string value at index i from the data bean [-> CONSTANT: X31CWebConst.DATABEAN_GET_VALUE] |
| 5 | EXEC | `result.add(element);` // Accumulate fetched element into result list |
| 6 | RETURN | `return (String[])result.toArray(new String[0]);` // Convert ArrayList to String[] and return [-> CONSTANT: X31CWebConst.DATABEAN_GET_VALUE] |

### Block 1.1 — FOR loop body (L1278)

> Nested inside the for-loop — each iteration fetches one string element by index and appends it to the result list.

| # | Type | Code |
|---|------|------|
| 1 | SET | `String element = getStringAt(bean, item, i);` // Reads the i-th string value from the data bean for the given item key |
| 2 | EXEC | `result.add(element);` // Adds the retrieved string to the accumulating result list |