# Rune Base Attribute Handler Documentation

## Overview
This document describes the database relationships and interactions for the `dbRuneBaseAttributeHandler` class. The rune base attribute handler manages the fundamental attributes and properties of rune base items in the Magicbane emulator system.

## Handler Class
**File:** `src/engine/db/handlers/dbRuneBaseAttributeHandler.java`
**Class:** `dbRuneBaseAttributeHandler`
**Extends:** `dbHandlerBase`

## Database Tables

### Main Table(s)
- **Table Name:** `obj_runebaseattribute`
- **Description:** Core rune base attribute information including name, description, and property values
- **Columns:** 
  - UID (Primary Key)
  - name
  - description
  - attributeType
  - minValue
  - maxValue
  - defaultValue
  - isStackable

### Related Tables

| Table Name | Description | Relationship |
|------------|-------------|--------------|
| `obj_rune_baseattribute` | Links rune base items to their attributes | RuneBaseID → obj_runebase.UID, AttributeID → obj_runebaseattribute.UID |
| `static_rune_attribute_type` | Static definitions of attribute types | AttributeTypeID → obj_runebaseattribute.UID |

## Key Queries

### Get Rune Base Attribute by ID
```sql
SELECT * FROM `obj_runebaseattribute` WHERE `UID`=?
```
**File:** `dbRuneBaseAttributeHandler.java`, Line ~60

### Get Attributes for Rune Base
```sql
SELECT rba.*, rbaa.attributeValue 
FROM `obj_runebaseattribute` rba 
INNER JOIN `obj_rune_baseattribute` rbaa ON rba.`UID` = rbaa.`AttributeID` 
WHERE rbaa.`RuneBaseID`=?
```
**File:** `dbRuneBaseAttributeHandler.java`, Line ~85

### Get Attribute by Type
```sql
SELECT * FROM `obj_runebaseattribute` WHERE `attributeType`=?
```
**File:** `dbRuneBaseAttributeHandler.java`, Line ~120

## Relationships

1. **Rune Base Attribute to Rune Base:** Many-to-many through `obj_rune_baseattribute` table
2. **Rune Base Attribute to Static Types:** One-to-many (via `static_rune_attribute_type.AttributeTypeID`)
3. **Attribute to Property Values:** Defines the range and default values for each attribute

## Java Field to Database Column Mappings

| Java Field | Database Column | Notes |
|------------|-----------------|-------|
| `name` | `obj_runebaseattribute.name` | Attribute name |
| `description` | `obj_runebaseattribute.description` | Description of the attribute |
| `attributeType` | `obj_runebaseattribute.attributeType` | Type of attribute (stat, effect, etc.) |
| `minValue` | `obj_runebaseattribute.minValue` | Minimum value allowed |
| `maxValue` | `obj_runebaseattribute.maxValue` | Maximum value allowed |
| `defaultValue` | `obj_runebaseattribute.defaultValue` | Default value for the attribute |
| `isStackable` | `obj_runebaseattribute.isStackable` | Whether the attribute can stack |

## Notes
- Rune base attributes define the core properties of rune items
- Attributes can be applied to different rune base types
- The system supports both fixed and variable attribute values