The "schema" parameter is applied to the connection internally:
The JDBC-connection API provides a corresponding method:
Code:
Connection c = ....;
c.setSchema("...");
In this case the DB-statements do not have to include a schema prefix.
Some of the JDBC drivers do not support this. So there is an alternative way of configuring by "eplicitSchema": now the schema is written as prefix to the table name of the queries.
...at the end you can choose between one of the options - according to your preference.