CDO数据结构基础(1)

CDO中存储的数据类型用如下的接口常量定义：

 package com.cdoframework.cdolib.base;

import java.io.Serializable;
import java.text.SimpleDateFormat;


public interface DataType extends Serializable
{

	
	int NONE_TYPE				=0;

	int BOOLEAN_TYPE			=1;
	int BYTE_TYPE				=2;
	int SHORT_TYPE				=3;
	int INTEGER_TYPE			=4;
	int LONG_TYPE				=5;
	int FLOAT_TYPE				=6;
	int DOUBLE_TYPE				=7;
	int STRING_TYPE				=8;
	int DATE_TYPE				=9;
	int TIME_TYPE				=10;
	int DATETIME_TYPE			=11;
	int CDO_TYPE				=12;
	int RECORD_TYPE				=13;

	int BOOLEAN_ARRAY_TYPE		=101;
	int BYTE_ARRAY_TYPE			=102;
	int SHORT_ARRAY_TYPE		=103;
	int INTEGER_ARRAY_TYPE		=104;
	int LONG_ARRAY_TYPE			=105;
	int FLOAT_ARRAY_TYPE		=106;
	int DOUBLE_ARRAY_TYPE		=107;
	int STRING_ARRAY_TYPE		=108;
	int DATE_ARRAY_TYPE			=109;
	int TIME_ARRAY_TYPE			=110;
	int DATETIME_ARRAY_TYPE		=111;
	int CDO_ARRAY_TYPE			=112;
	int RECORD_SET_TYPE			=113;
	
	String	DATETIME_FORMAT_STRING		="yyyy-MM-dd HH:mm:ss";
	String	DATE_FORMAT_STRING			="yyyy-MM-dd";
	String	TIME_FORMAT_STRING			="HH:mm:ss";
	
	SimpleDateFormat DATETIME_FORMAT	=new SimpleDateFormat (DATETIME_FORMAT_STRING);
	SimpleDateFormat DATE_FORMAT		=new SimpleDateFormat (DATE_FORMAT_STRING);
	SimpleDateFormat TIME_FORMAT		=new SimpleDateFormat (TIME_FORMAT_STRING);	
}

可以存储的数据类型为：
布尔类型、byte类型、short类型、int类型、long类型、float类型、double类型、String类型、Date类型、Time类型
DateTime类型、CDO类型、布尔数组类型、byte数组类型、short数组类型、int数组类型、long数组类型、float
数组类型、double数组类型、String数组类型、Date数组类型、Time数组类型、DateTime数组类型、CDO数组类型
事先定义好这些数据类型是构造CDO数据结构的基石！