1.3.5.1 Installing the Java Client

The prerequisites for installing the Java client are:

• A Unix-based operation system (such as Linux) or macOS or Microsoft Windows
• Oracle JDK 11

1. Download Oracle Graph Client 21.3 from Oracle Software Cloud.
2. Unzip the file into a directory of your choice.
3. Configure your client to trust the self-signed server certificate. See Configuring a Client to Trust the Self-Signed Certificate for more information.
4. Connect to the graph server (PGX) using the graph shell for Java as shown:

   cd <CLIENT_INSTALL_DIR>
   ./bin/opg4j --base_url https://<host>:7007 --username <graphuser>
   

   In the preceding code:

   • <CLIENT_INSTALL_DIR>: Directory where the shell executables are located.

     Note:

     The shell executables are generally found in /opt/oracle/graph/bin after server installation, and <CLIENT_INSTALL_DIR>/bin after the client installation.
   • <host>: Server host
   • <graphuser>: Database user

     You will be prompted for the database password.

   Note:

   The default graph server (PGX) port is 7007. If needed, you can configure the graph server to listen on a different port by changing the port configuration in server.conf file. See Configuring the In-Memory Graph Server (PGX) for more information.

   The Java shell starts and the following command line prompt appears as shown:

   For an introduction type: /help intro
   Oracle Graph Server Shell 21.2.0
   Variables instance, session, and analyst ready to use.
   opg4j>

   See Interactive Graph Shell for more information on the Java client.