packagecom.learn.scala.day15

/**

* scala第十五天

* Created by zhuqing on 2017/3/16.

*/

objectDay15Apply {

defmain(args: Array[String]): Unit = {

/**

* 创建Person类，实际调用的是： val person = Person.apply("001","Robbie");

*

*/

valperson =Person("001","Robbie");

/**

* 解开Person，实际调用的是: var idname = Person.unapply(person)

*/

valPerson(id,name) = person

println(id+":"+name)

validname:Option[(String,String)] = Person.unapply(person)

val(id1,name1) = idname.get

println(id1+":"+ name1)

/**

* 默认调用Person的update方法：

* def update(id:String ,name:String): Unit

*/

person("002") ="Tome";

println(person)

/**

* 实际调用的是：

*    Name.unapplySeq("Robbie T Zhu")

*/

valName(fistName,middleName,secondName)="Robbie T Zhu"

println(fistName+" "+middleName+" "+secondName)

}

}

packagecom.learn.scala.day15

importscala.beans.BeanProperty

importscala.collection.mutable

/**

* Created by zhuqing on 2017/3/16.

*/

classPerson(@BeanPropertyvalid:String,@BeanPropertyvarname:String) {

def this(id:String) {

this(id,"None")

}

/**

* 更新数据，一般在集合和Map中常用，在这里使用不妥。

*@param id

*@param name

*/

defupdate(id:String,name:String): Unit ={

this.name = name;

}

override deftoString:String= {

"("+ id +","+ name +")"

}

}

/**

* Person 的伴生类

*/

objectPerson {

/**

* 创建Person

*

*@param id

*@param name

*@return

*/

defapply(id:String, name:String): Person =newPerson(id, name)

/**

* 创建person

*

*@param id

*@return

*/

defapply(id:String): Person =newPerson(id)

/**

* 把Person拆解成id和姓名的tupe

*@param arg

*@return

*/

defunapply(arg: Person): Option[(String,String)] = {

if(arg ==null) {

None

}else{

Some((arg.getId, arg.getName))

}

}

}

objectName{

/**

* 把输入的数据拆解成一个序列

*@param input

*@return

*/

defunapplySeq(input:String):Option[mutable.Seq[String]]={

if(input==null|| input.isEmpty){

None

}else{

Some(input.split(" "))

}

}

}