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API ReferenceJava APIDriver

Driver

Driver is the main entry point for Java applications using NeuG.

Responsibilities

  • Create and own the underlying HTTP client
  • Verify server connectivity
  • Create Session instances
  • Manage driver lifecycle through close()

Create a Driver

import com.alibaba.neug.driver.Driver;
import com.alibaba.neug.driver.GraphDatabase;
 
Driver driver = GraphDatabase.driver("http://localhost:10000");

Create a Driver with Config

import com.alibaba.neug.driver.Driver;
import com.alibaba.neug.driver.GraphDatabase;
import com.alibaba.neug.driver.utils.Config;
 
Config config = Config.builder()
        .withConnectionTimeoutMillis(3000)
        .build();
 
Driver driver = GraphDatabase.driver("http://localhost:10000", config);

Verify Connectivity

try (Driver driver = GraphDatabase.driver("http://localhost:10000")) {
    driver.verifyConnectivity();
}

Open Sessions

try (Driver driver = GraphDatabase.driver("http://localhost:10000")) {
    try (Session session = driver.session()) {
        // run queries here
    }
}

Lifecycle Notes

  • Reuse one Driver for multiple queries and sessions when possible
  • Close the driver when the application shuts down
  • isClosed() can be used to inspect driver state

See also: Session

Java API OverviewConfig