java枚举貌似没什么可说滴,其实还是有点意思

 

下面就是一个有一点复杂的java枚举的例子

 

//复杂的枚举类型
enum ETableType 
{
	String("Varchar"),
	Int("Number"),
	Date("Date"),
	Boolean("Boolean"),
	Float("Decimal");
	
	private String dbType;
	public String getDbType()
	{
		return dbType;
	}
	public void setDbType(String dbType)
	{
		this.dbType = dbType;
	}
	ETableType(String dbType)
	{
		this.dbType = dbType;
	};
	public String getDBEntityType(int length)
	{
		String name = this.name().toLowerCase();
		if(name.equals("date") || name.equals("boolean"))
			return dbType;//无需配接长度的类型
		StringBuffer sb = new StringBuffer();
		sb.append(dbType).append("(").append(length).append(")");
		return sb.toString();
	}
}