protected InstanceKeyDataSource getNewInstance(Reference ref) throws ClassNotFoundException, IOException 
{
        PerUserPoolDataSource pupds =  new PerUserPoolDataSource();
        RefAddr ra = ref.get("defaultMaxActive");
        if (ra != null && ra.getContent() != null) {
            pupds.setDefaultMaxActive(
                Integer.parseInt(ra.getContent().toString()));
        }
        ra = ref.get("defaultMaxIdle");
        if (ra != null && ra.getContent() != null) {
            pupds.setDefaultMaxIdle(
                Integer.parseInt(ra.getContent().toString()));
        }
        ra = ref.get("defaultMaxWait");
        if (ra != null && ra.getContent() != null) {
            pupds.setDefaultMaxWait(
                Integer.parseInt(ra.getContent().toString()));
        }
        ra = ref.get("perUserDefaultAutoCommit");
        if (ra != null  && ra.getContent() != null) {
            byte[] serialized = (byte[]) ra.getContent();
            pupds.perUserDefaultAutoCommit = (Map) deserialize(serialized);
        }
        ra = ref.get("perUserDefaultTransactionIsolation");
        if (ra != null  && ra.getContent() != null) {
            byte[] serialized = (byte[]) ra.getContent();
            pupds.perUserDefaultTransactionIsolation = 
                (Map) deserialize(serialized);
        }
        ra = ref.get("perUserMaxActive");
        if (ra != null  && ra.getContent() != null) {
            byte[] serialized = (byte[]) ra.getContent();
            pupds.perUserMaxActive = (Map) deserialize(serialized);
        }
        ra = ref.get("perUserMaxIdle");
        if (ra != null  && ra.getContent() != null) {
            byte[] serialized = (byte[]) ra.getContent();
            pupds.perUserMaxIdle = (Map) deserialize(serialized);
        }
        ra = ref.get("perUserMaxWait");
        if (ra != null  && ra.getContent() != null) {
            byte[] serialized = (byte[]) ra.getContent();
            pupds.perUserMaxWait = (Map) deserialize(serialized);
        }
        ra = ref.get("perUserDefaultReadOnly");
        if (ra != null  && ra.getContent() != null) {
            byte[] serialized = (byte[]) ra.getContent();
            pupds.perUserDefaultReadOnly = (Map) deserialize(serialized);
        }
        return pupds;
}

 protected boolean isCorrectClass(String className) 
{
        
        return PER_USER_POOL_CLASSNAME.equals(className);
}