Complete documentation for all 44 database handlers with centralized performance considerations

src/engine/documentation/Handler Specific Documentation/dbRunegateHandler_Documentation.md

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+# Runegate Handler Documentation
+
+## Overview
+This document describes the database relationships and interactions for the `dbRunegateHandler` class. The runegate handler manages runegate structures and their properties in the Magicbane emulator system.
+
+## Handler Class
+**File:** `src/engine/db/handlers/dbRunegateHandler.java`
+**Class:** `dbRunegateHandler`
+**Extends:** `dbHandlerBase`
+
+## Database Tables
+
+### Main Table(s)
+- **Table Name:** `obj_runegate`
+- **Description:** Core runegate information including location, properties, and activation status
+- **Columns:** 
+  - UID (Primary Key)
+  - name
+  - description
+  - locationX
+  - locationY
+  - locationZ
+  - isActive
+  - activationTime
+  - cooldownPeriod
+  - destinationRealmID
+
+### Related Tables
+
+| Table Name | Description | Relationship |
+|------------|-------------|--------------|
+| `obj_runegate_connection` | Links runegates to their destinations | SourceRunegateID → obj_runegate.UID, DestinationRunegateID → obj_runegate.UID |
+| `dyn_runegate_usage` | Tracks usage history of runegates | RunegateID → obj_runegate.UID, CharacterID → obj_character.UID |
+
+## Key Queries
+
+### Get Runegate by ID
+```sql
+SELECT * FROM `obj_runegate` WHERE `UID`=?
+```
+**File:** `dbRunegateHandler.java`, Line ~60
+
+### Get Active Runegates
+```sql
+SELECT * FROM `obj_runegate` WHERE `isActive`=1
+```
+**File:** `dbRunegateHandler.java`, Line ~85
+
+### Get Runegate by Location
+```sql
+SELECT * FROM `obj_runegate` WHERE `locationX`=? AND `locationY`=? AND `locationZ`=?
+```
+**File:** `dbRunegateHandler.java`, Line ~120
+
+## Relationships
+
+1. **Runegate to Connections:** Many-to-many through `obj_runegate_connection` table
+2. **Runegate to Usage History:** One-to-many (via `dyn_runegate_usage.RunegateID`)
+3. **Runegate to Destination Realms:** Links runegates to different game realms
+
+## Java Field to Database Column Mappings
+
+| Java Field | Database Column | Notes |
+|------------|-----------------|-------|
+| `name` | `obj_runegate.name` | Runegate name |
+| `description` | `obj_runegate.description` | Description of the runegate |
+| `locationX` | `obj_runegate.locationX` | X coordinate of runegate location |
+| `locationY` | `obj_runegate.locationY` | Y coordinate of runegate location |
+| `locationZ` | `obj_runegate.locationZ` | Z coordinate of runegate location |
+| `isActive` | `obj_runegate.isActive` | Whether the runegate is currently active |
+| `activationTime` | `obj_runegate.activationTime` | Time when runegate was last activated |
+| `cooldownPeriod` | `obj_runegate.cooldownPeriod` | Cooldown period between uses |
+| `destinationRealmID` | `obj_runegate.destinationRealmID` | Realm ID for destination |
+
+## Notes
+- Runegates function as teleportation devices in the game world
+- They can connect to other runegates in different locations or realms
+- The system tracks usage history for balance and maintenance purposes