<dependency>
<groupId>cloud.unum</groupId>
<artifactId>usearch</artifactId>
<version>2.17.7</version>
</dependency>Add that snippet to your pom.xml and hit mvn install.
import cloud.unum.usearch.Index;
public class Main {
public static void main(String[] args) {
try (Index index = new Index.Config()
.metric("cos")
.quantization("f32")
.dimensions(3)
.capacity(100)
.build()) {
// Add to Index
float[] vector = {0.1f, 0.2f, 0.3f};
index.add(42, vector);
// Search
int[] keys = index.search(new float[]{0.1f, 0.2f, 0.3f}, 10);
for (int key : keys) {
System.out.println("Found key: " + key);
}
} catch (Exception e) {
e.printStackTrace();
}
}
}To save and load the index from disk, use the following methods:
index.save("index.usearch");
index.load("index.usearch");
index.view("index.usearch");It is generally not recommended to use HNSW indexes in case of frequent removals or major distribution shifts. For small updates, you can use the following methods:
float[] vector = index.get(42);
boolean removed = index.remove(42);
boolean renamed = index.rename(43, 42);To obtain metadata:
long size = index.size();
long capacity = index.capacity();
long dimensions = index.dimensions();
long connectivity = index.connectivity();