build(deps): bump actions/setup-java from 4 to 5 - #3
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…ne, Euclidean, VectorOps)
…p) with zero-copy I/O
… SECURITY, README, CI, templates)
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…double-consonant dedup
… HNSW recall tests
…n-testtools dependency
…hunker, TextUtils and add chunked ingestion for large documents
…kenizer for large document support
… auto-embed engine integration
- QuantizationType enum (NONE, SCALAR_INT8) - ScalarQuantizer with min/max calibration and INT8 encoding - QuantizedCosineSimilarity and QuantizedDotProduct SIMD kernels - SimilarityFunction updated with quantized variants - ScalarQuantizerTest for encode/decode and batch operations
- PersistenceMode enum (IN_MEMORY, DISK, MMAP) - IndexFileFormat for binary HNSW serialization - QuantizedVectorStore with INT8 compression - InMemoryVectorStore concurrent access improvements
- DiskHnswWriter for binary HNSW graph serialization - DiskHnswIndex for mmap-based read-only index loading - QuantizedHnswIndex with INT8 scalar quantization (4x memory reduction) - BM25Index and HnswIndex performance improvements - DiskHnswIndexTest and QuantizedHnswIndexTest
- ProductQuantizer: K-Means++ codebook training, PQ encode/decode, ADC distance computation, batch encoding - IvfPqIndex: full IVF-PQ implementing VectorIndex SPI with cluster assignment, residual-based PQ encoding, and multi-probe search - PostingList: per-cluster growable storage for PQ codes - 14 tests: PQ training/encode/decode/ADC + IVF-PQ search/recall/sorting
- Reranker SPI interface for pluggable re-ranking strategies - LlmReranker: listwise relevance scoring using Ollama generate API with prompt-based 0-10 scoring and graceful fallback - HybridSearchOrchestrator: integrated optional re-ranking post-processing - LlmRerankerTest: fallback behavior, empty input, topK limiting
- spector-gpu Maven module with Panama FFM CUDA bindings - GpuCapability: runtime CUDA detection (device count, name, memory) - GpuBatchSimilarity: SIMD-optimized batch dot product and cosine similarity using FMA Vector API operations - CudaKernelLauncher: PTX module loader, function resolver, kernel launcher with grid/block configuration - batch_similarity.cu: CUDA kernels for batch_cosine, batch_dot, batch_l2 with block-level shared memory reduction - 14 tests: GPU detection, batch similarity correctness, CUDA launcher
…hitecture - spector-cluster Maven module with gRPC/protobuf integration - spector_search.proto: 6 RPC definitions (vector, keyword, hybrid search, ingest, health check, stats) - ClusterCoordinator: fan-out/merge query execution via virtual threads with consistent hash shard routing - ShardNode: gRPC server wrapping SpectorEngine - SpectorSearchServiceImpl: full gRPC service delegating to local engine - RemoteShardClient: type-safe gRPC client for all 5 RPC methods - ClusterConfig: multi-node endpoint configuration with replication - ClusterConfigTest: routing, hash consistency, topology tests
…rEngine - IndexType enum (HNSW, IVF_PQ) for configurable index strategy - SpectorConfig: added indexType, ivfNlist, ivfNprobe, pqSubspaces with builder methods (withIvfPq) and auto-defaults - SpectorEngine: IVF-PQ auto-training pipeline that buffers ingested vectors and trains PQ codebooks after nlist*40 samples - Backward-compatible 7-arg constructor preserved - 4 new tests: auto-training, keyword search during buffering, config builder, auto-defaults
- HeavyPerformanceBenchmark: keyword/vector/hybrid at 50K-100K scale - IvfPqBenchmark: IVF-PQ search, PQ encode/decode, ADC distance, batch cosine similarity at 10K-50K scale - ConcurrencyBenchmark: multi-threaded search throughput - IngestionBenchmark: document ingestion throughput - PerformanceTestRunner: standalone runner with formatted results
- pom.xml: added spector-gpu, spector-cluster modules to reactor and dependencyManagement - README.md: expanded architecture (13 modules), 5 new features, updated comparison table (quantization, IVF-PQ, GPU, LLM, distributed), updated test suite (316+ tests), added roadmap checklist
Extract ~300 lines of duplicated graph traversal code (greedyClosest, searchLayer, selectNeighbors, addConnection, getNeighbors, setNeighbors) into AbstractHnswIndex base class with three template method hooks: - computeDistance(float[], int) — distance from query to stored node - getNodeVector(int) — float32 vector retrieval for pruning - storeVector(int, float[]) — vector storage on insertion HnswIndex: 413 -> 76 lines (-81%) QuantizedHnswIndex: 476 -> 226 lines (-53%) All 316+ tests passing, zero regressions.
- VectorIndex: add default isReadOnly() method (returns false) - DiskHnswIndex: override isReadOnly() to return true - KeywordIndex: add default remove(String id) method - BM25Index: expose existing removeDoc() logic via KeywordIndex.remove() Completes the deletion API path across the engine.
- Add gpuEnabled, rerankerEnabled, rerankerOllamaUrl, rerankerModel, rerankerMaxCandidates fields to SpectorConfig record - Add with*() builder-style methods for GPU and reranker config - Add IVF-PQ computed defaults (effectiveNlist, effectiveNprobe, etc.) - Add spector-gpu dependency to engine POM
Introduce GoF design patterns for component creation: - VectorIndexFactory: creates HNSW, QuantizedHNSW, or IVF-PQ based on config (replaces if/else chain in engine constructor) - VectorStoreFactory: creates InMemory or MappedVectorStore based on PersistenceMode (replaces hardcoded InMemoryVectorStore) - EngineComponentFactory: Abstract Factory assembling all components (store, index, GPU, reranker) into an EngineComponents record - EngineComponents: immutable record grouping all subsystems Adding a new index or store type now requires zero changes to SpectorEngine (Open/Closed Principle).
Refactor SpectorEngine to delegate component construction to
EngineComponentFactory (Abstract Factory) instead of inline if/else:
- Constructor: 150 lines -> 30 lines
- Field type: BM25Index -> KeywordIndex (DIP compliance)
- Removed 8 concrete class imports for construction (now in factories)
- Added SpectorEngine.Builder for fluent engine construction:
SpectorEngine engine = SpectorEngine.builder()
.dimensions(384).capacity(100_000)
.similarity(SimilarityFunction.COSINE)
.gpu(true).build();
- Added constructor accepting custom EngineComponentFactory for testing
- Integrated GPU fallback and LLM reranker lifecycle
…points
- CORS support via Javalin bundled plugin
- Optional API key authentication via X-API-Key header
- Vector dimension validation on ingest
- New endpoints: /api/v1/ingest/auto, /api/v1/ingest/bulk,
DELETE /api/v1/documents/{id}, /api/v1/metrics
- Request counters via LongAdder for observability
Add 4-arg constructor accepting CA cert, client cert, and client key for TLS-encrypted gRPC connections. Transparent fallback to plaintext for development environments.
…ReentrantLock - Parent POM: remove duplicate jackson-databind declaration - MappedVectorStore: replace synchronized with ReentrantLock on put() and close() for virtual thread compatibility (consistent with InMemoryVectorStore)
- README: reflect current 13-module architecture, design patterns, GPU acceleration, LLM re-ranking, and IVF-PQ indexing - CHANGELOG: comprehensive feature inventory across all modules - goal.md: update roadmap with completed items and current status
…dd INT4/INT2 index support
…nd Spring AI integration
Bumps [actions/setup-java](https://github.com/actions/setup-java) from 4 to 5. - [Release notes](https://github.com/actions/setup-java/releases) - [Commits](actions/setup-java@v4...v5) --- updated-dependencies: - dependency-name: actions/setup-java dependency-version: '5' dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com>
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OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting If you change your mind, just re-open this PR and I'll resolve any conflicts on it. |
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Bumps actions/setup-java from 4 to 5.
Release notes
Sourced from actions/setup-java's releases.
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Commits
be666c2Chore: Version Update and Checkout Update to v6 (#973)f7a6fefBump actions/checkout from 5 to 6 (#961)d81c4e4Upgrade@actions/cacheto v5 (#968)1b1bbe1readme update (#972)5d7b214Retry on HTTP 522 Connection timed out (#964)f2beeb2Bump actions/publish-action from 0.3.0 to 0.4.0 (#912)4e7e684feat: Add support for.sdkmanrcfile injava-version-fileparameter (#736)46c56d6Add GitHub Token Support for GraalVM and Refactor Code (#849)66b9457Update SapMachine URLs (#955)6ba5449Enhance error logging for network failures to include endpoint/IP details, ad...