Examples of java.sql.Wrapper

java.sql.Wrapper

Interface for JDBC classes which provide the ability to retrieve the delegate instance when the instance in question is in fact a proxy class.

The wrapper pattern is employed by many JDBC driver implementations to provide extensions beyond the traditional JDBC API that are specific to a data source. Developers may wish to gain access to these resources that are wrapped (the delegates) as proxy class instances representing the the actual resources. This interface describes a standard mechanism to access these wrapped resources represented by their proxy, to permit direct access to the resource delegates. @since 1.6

                    return (OracleConnection) uwcx;
                }
            } else if (cx instanceof Wrapper) {
                // try to use java 6 unwrapping
                try {
                    Wrapper w = cx;
                    if (w.isWrapperFor(OracleConnection.class)) {
                        return w.unwrap(OracleConnection.class);
                    }
                } catch (Throwable t) {
                    // not a mistake, old DBCP versions will throw an Error here, we need to catch
                    // it
                    LOGGER.log(Level.FINER, "Failed to unwrap connection using java 6 facilities",

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