code: @Override
  	public Object doOutParameter(final String key, final Object val) {
  		LOG.debug("Out parameter - Key:{}, value:{}", key, val);
  		return val;
  	}
docs: {@inheritDoc}
  
  @see jp.co.future.uroborosql.filter.AbstractSqlFilter#doOutParameter(java.lang.String, java.lang.Object)