> Jaybird has several drivers:
> pure Java (type 4): jdbc:firebirdsql://<host>:<port>/<db-path> and
> (old-style) jdbc:firebirdsql:<host>/<port>:<db-path>

there is one more:

jdbc:firebirdsql:java:<host>/<port>:<db-path>

> native/JNI (type 2): jdbc:firebirdsql:native:<host>/<port>:<db-path>
> local/JNI (type 2): jdbc:firebirdsql:local:<db-path>
> embedded/JNI (type 2): jdbc:firebirdsql:embedded:<db-path>

The whole idea with the URL is similar to what you have in Oracle, for
example:

jdbc:oracle:thin:<driver-specific-part>
jdbc:oracle:oci:<driver-specific-part>

In Jaybird we have:

jdbc:firebirdsql:java:
jdbc:firebirdsql:native:
jdbc:firebirdsql:local:
jdbc:firebirdsql:embedded:

which defines four different driver types, only that there is an "alias"
for "jdbc:firebirdsql:java:" - "jdbc:firebirdsql:" for simplicity and
compatibility reasons.

Roman