m_aggregation = aggregation; m_arguments = new ArrayList();
this.aggregation = aggregation; this.arguments = new ArrayList();
	AggregateExpression( IAggregation aggregation )    {		logger.entering( AggregateExpression.class.getName( ),				"AggregateExpression" );    	m_aggregation = aggregation;    	m_arguments = new ArrayList();		logger.exiting( AggregateExpression.class.getName( ),				"AggregateExpression" );    }