Ledger for Forge

[2.0.0] - 2026-01-10 Major storage system overhaul - SQLite database implementation Added

• SQLite database storage system with indexed queries
• Automatic log cleanup scheduler (configurable retention period)
• Batch processing system for improved write performance
• WAL (Write-Ahead Logging) mode for crash safety
• Six optimized database indexes for fast lookups
• Cleanup command for manual database maintenance
• Database size monitoring and reporting
• Less Console spam when making entry's

Updated

• Storage backend migrated from JSON to SQLite
• LedgerManager with scheduled cleanup task (runs every 24 hours)
• LogEntry constructor to support timestamp deserialization
• Query performance: radius searches now 100x faster

Removed

• JSON file storage as primary backend (JsonStorage.java kept for reference)
• Full file rewrites every 10 entries
• In-memory entry list loading at startup

Changed

• File format: ledger.json → ledger.db (SQLite database)
• Write strategy: batch inserts every 100ms instead of immediate writes
• Default log retention: unlimited → 90 days (configurable)
• Disk I/O: reduced from 1000+ full file writes/hour to append-only batches
• Scalability: 500k max entries → 100M+ entries supported

Technical Details

• Added dependency: org.xerial:sqlite-jdbc:3.44.1.0
• Server compatibility: server-side only (no client required)

Migration Notes

• New installations will use SQLite by default
• Old JSON files can be safely deleted after verifying new system