How to use

openConnection

method

in

org.postgresql.core.ConnectionFactory

this.protoConnection = ConnectionFactory.openConnection(host, port, user, database, info, logger);
this.dbVersionNumber = protoConnection.getServerVersion();
this.compatible = info.getProperty("compatible", Driver.MAJORVERSION + "." + Driver.MINORVERSION);

this.queryExecutor = ConnectionFactory.openConnection(hostSpecs, user, database, info);

this.protoConnection = ConnectionFactory.openConnection(host, port, user, database, info, logger);
this.dbVersionNumber = protoConnection.getServerVersion();
this.compatible = info.getProperty("compatible", Driver.MAJORVERSION + "." + Driver.MINORVERSION);

this.protoConnection = ConnectionFactory.openConnection(host, port, user, database, info, logger);
this.dbVersionNumber = protoConnection.getServerVersion();
this.compatible = info.getProperty("compatible", Driver.MAJORVERSION + "." + Driver.MINORVERSION);