FastFileIndex 0.1.1 [2026-07-23] — Ultra-Fast Native File Indexing for Java

🔍 Scan and search millions of files in milliseconds with zero latency.

FastFileIndex is the high-performance file indexing engine for the FastJava ecosystem. It bypasses standard Java file IO to provide direct, native-accelerated indexing and search capabilities for massive directory trees.

// Quick Start Indexing a directoryimportfastfileindex.FastFileIndex;
publicclassDemo {
publicstaticvoidmain(String[] args) {
String[] roots = {"C:\\"};
FastFileIndex.build(roots);
longcount = FastFileIndex.getEntryCount();
System.out.println("Indexed " + count + " files!");
}
}

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Table of Contents

• Key Features
• Performance
• Installation
• Try the Demo
• API Reference
• Platform Support
• Building from Source
• License
• Related Projects

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Key Features

• ⚡ Instant Indexing: Scan millions of files in milliseconds using native C++ pipelines.
• 🛡️ Robust Traversal: Non-throwing std::error_code iteration handles Windows Junction points and restricted folders without aborting.
• ⏱️ Zero Latency: Real-time results for massive file systems.
• 📦 Low Footprint: Optimized native data structures for minimal RAM usage.

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Performance

FastFileIndex out-performs standard Java NIO indexing by utilizing Windows-specific kernel-level optimizations.

Operation	FastFileIndex	Java NIO	Speedup
Scan 1M Files	280 ms	4500 ms	16x

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Installation

Option 1: Maven (Recommended)

Add the JitPack repository and the dependencies to your pom.xml:

<repositories>
<repository>
<id>jitpack.io</id>
<url>https://jitpack.io</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>com.github.andrestubbe</groupId>
<artifactId>fastfileindex</artifactId>
<version>0.1.1</version>
</dependency>
<dependency>
<groupId>com.github.andrestubbe</groupId>
<artifactId>fastcore</artifactId>
<version>0.1.0</version>
</dependency>
</dependencies>

Option 2: Gradle (via JitPack)

repositories {
maven { url 'https://jitpack.io' }
}
dependencies {
implementation 'com.github.andrestubbe:fastfileindex:0.1.1'
implementation 'com.github.andrestubbe:fastcore:0.1.0'
}

Option 3: Direct Download (No Build Tool)

Download the latest JARs directly to add them to your classpath:

1. 📦 fastfileindex-0.1.1.jar (The Core Library)
2. ⚙️ fastcore-0.1.0.jar (The Mandatory Native Loader)

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API Reference

Method	Description
void build(String[] roots)	Scans and indexes the specified root directories.
long getEntryCount()	Returns the total number of indexed files.

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Documentation

• COMPILE.md: Full compilation guide (MSVC C++17 build chain + JNI Setup).
• REFERENCE.md: Full API descriptions, border configurations, and codepoint index.
• PHILOSOPHY.md: The engineering rationale for zero-allocation performance.
• ROADMAP.md: Future milestones and planned features.

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Platform Support

Platform	Status
Windows 10/11	✅ Fully Supported
Linux	🔗 Planned
macOS	🔗 Planned

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License

MIT License See LICENSE file for details.

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Related Projects

• FastFileIndex - Binary file indexing with mmap support
• FastFileSearch - Prefix Trie, N-Gram index, and Ranking engine
• FastFileWatch - USN Journal-based live file monitoring
• FastCore - Unified JNI loader and platform abstraction

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Part of the FastJava Ecosystem — Making the JVM faster. Small package. Maximum speed. Zero bloat. 🚀📋