private boolean isValidateProperties() {
        return properties != null &&
                properties.containsKey(DB_USERNAME) &&
                properties.containsKey(DB_PASSWORD) &&
                (properties.containsKey(DB_NAME) || properties.containsKey(JDBC_CONNECTION_STRING));
    }
private boolean isValidateProperties ( ) { return properties != null && properties . containsKey ( DB_USERNAME ) && properties . containsKey ( DB_PASSWORD ) && ( properties . containsKey ( DB_NAME ) || properties . containsKey ( JDBC_CONNECTION_STRING ) ) ; }
This function will check if the required minimum
properties are set for database connection and exporting
@return bool