Quick Start Guide

<dependency>
    <groupId>com.apple.foundationdb</groupId>
    <artifactId>fdb-java</artifactId>
    <version>7.4.3</version>
</dependency>

import com.apple.foundationdb.FDB;

FDB fdb = FDB.selectAPIVersion(740);

import com.apple.foundationdb.Database;

try (Database db = fdb.open()) {
    // Use database
}

import com.apple.foundationdb.*;

FDB fdb = FDB.selectAPIVersion(740);

try (Database db = fdb.open()) {
    // Write data
    db.run(tr -> {
        tr.set("key".getBytes(), "value".getBytes());
        return null;
    });
    
    // Read data
    String value = db.run(tr -> {
        byte[] result = tr.get("key".getBytes()).join();
        return result != null ? new String(result) : null;
    });
    
    System.out.println("Value: " + value);
}

db.run(tr -> {
    // All operations here automatically retry on conflicts
    tr.set("key1".getBytes(), "value1".getBytes());
    tr.set("key2".getBytes(), "value2".getBytes());
    return null;
});

List<String> keys = db.read(tr -> {
    List<String> result = new ArrayList<>();
    for (KeyValue kv : tr.getRange("prefix:".getBytes(), "prefix;".getBytes())) {
        result.add(new String(kv.getKey()));
    }
    return result;
});

import com.apple.foundationdb.tuple.Tuple;

Tuple key = Tuple.from("users", 1001, "profile");
byte[] packedKey = key.pack();

db.run(tr -> {
    tr.set(packedKey, "user data".getBytes());
    return null;
});

import com.apple.foundationdb.subspace.Subspace;
import com.apple.foundationdb.tuple.Tuple;

Subspace users = new Subspace(Tuple.from("users"));
byte[] key = users.pack(Tuple.from(1001));

db.run(tr -> {
    tr.set(key, "user data".getBytes());
    return null;
});