package book;

public enum RecordOperator {

	Insert,			//新增 
	Update,			//更新
	Delete;			//删除


	public static RecordOperator parse(String value) {
		if (value == null) {
			return Insert;
		}
		
		value = value.toLowerCase();
		
		if ("insert".equals(value)) {
			return Insert;
		}
		else if ("update".equals(value)) {
			return Update;
		}
		else if ("delete".equals(value)) {
			return Delete;
		}
		
		return Insert;
	}

	
}