Polishing

Rename Util to DomainSocketFactory

[resolves #348]

Author: mp911de

src/main/java/io/r2dbc/postgresql/PostgresqlConnectionFactory.java

@@ -97,7 +97,7 @@ private static SocketAddress createSocketAddress(PostgresqlConnectionConfigurati
             return InetSocketAddress.createUnresolved(configuration.getRequiredHost(), configuration.getPort());
         }
 
-        return Util.getDomainSocketAddress(configuration);
+        return DomainSocketFactory.getDomainSocketAddress(configuration);
     }
 
     private static Extensions getExtensions(PostgresqlConnectionConfiguration configuration) {
@@ -271,10 +271,7 @@ public PostgresConnectionException(String msg, @Nullable Throwable cause) {
 
     }
 
-    static class Util {
-
-        private Util() {
-        }
+    static class DomainSocketFactory {
 
         private static SocketAddress getDomainSocketAddress(PostgresqlConnectionConfiguration configuration) {
             return new DomainSocketAddress(configuration.getRequiredSocket());