Task Details

Epic: #2977 (Phase 3: Modularity)
Priority: HIGH
Effort: 4 days
Dependencies: TASK-P3-009

Description

Extract LSM index implementation (~30 files) to separate module for LSM-Tree indexing.

Steps

1. Create arcadedb-index-lsm module
2. Move LSM-specific classes:
   • LSMTreeIndex, LSMTreeIndexAbstract
   • LSMTreeIndexCompacted
   • LSMTreeIndexMutable
   • Compaction logic
3. Update dependencies
4. Fix imports
5. Update tests
6. Verify compilation

Files to Create

• index-lsm/pom.xml
• index-lsm/src/main/java/com/arcadedb/index/lsm/**

Classes to Move (from engine)

• com.arcadedb.index.lsm.*
• ~30 LSM files

Dependencies

<dependencies>
    <dependency>
        <groupId>com.arcadedb</groupId>
        <artifactId>arcadedb-index-core</artifactId>
    </dependency>
    <dependency>
        <groupId>com.arcadedb</groupId>
        <artifactId>arcadedb-storage</artifactId>
    </dependency>
</dependencies>

Acceptance Criteria

• index-lsm module created
• ~30 LSM files moved
• Compiles successfully
• Tests pass