ArrayList to Collection

An ArrayList is already a Collectionm so can be passed directly

If you need to convert an array to a Collection use:

Collection c = Arrays.asList(myarray);

but in my case MyBlockDTO[] is another DTO which contatins some getter and setter. I will explain clearly


MyFunctionDTO contains ---> MyBlockTDO Getter and setters, MyBlockDTO contains--> MyRightsDTO getters and setters  

MyFucntionDTOImpl contains pure collection objects.

My problem is that i want to convert MyFucntionDTO objects into pure collection objects. Now we are getting mixed list arraylists form some DTO's and Collections from some DTO's but my UserInterface accepts only collection objects so in my helper class assume like

public static Collection convert(Collection myFuntionDTO)
{
   /** Here how to parse myFuncitonDTO.getMyBlockDTO()//whcih will return MyBlockDTO[].  So how to convert that MyBlockDTO[] into Collection Object.
}
Internally MyBlockDTO contatins MyRolesDTO[] getter and setters,

so how to convert those objects form lower lever and centralize those into set of Collection Objects..

Collection c = Arrays.asList(myFuncitonDTO.getMyBlockDTO());

I think
Collection c = myFuncitonDTO.getMyBlockDTO(); will do directly.

Hi Shivaspk

This will not work for me.   Objects solution is some what acceptable for my problem.....

You want to store the values from the MyBlockDTO[] array in the MyFunctionDTO class to the MyBlockDTO collection in the MyFucntionDTOImpl class?

MyFunctionDTOImpl obj = new MyFucntionDTOImpl () ;
obj.setMyBlockDTO ( Collections.asList ( myFunctionDTOObject.getMyBlockDTO () ) ) ;

Hi

I have one Collection like follow.

Collection webCollection = blockElements.getWebElements();

How to convert directly that webCollection in to  webArray[].  With out using iterator and loops.

Is there any quick solution??

webArray[] array = webCollection.toArray ( new webArray[] {} ) ;

what are the required imports to use webArray[]. caon you explain more clearly?? thanks in advance

My problem is like

I have 2 classes called A and B of same structure. Class A returns Collection Object. And Class B uses Array. Can I convert Class A's Collection Object into Class B's Array object. Is it Possible? If yes what is the procedure

Does the class A's collection hold the same type of objects which class B's array is supposed to hold? If yes, then you can do it.

These are my two classes.

Pubilc class  A implements Serializabel{

private Collection elements = null;

public void setElements(Collection elements)
{
   this.elements = elements;
}

public Collection getElements(){
             return elements;  }
}


public class B implements Serializable{

private Elements[]  elements = null;
public void setElements(Elements[] elements)
{
this.elements = elements;
}
public Elements[] getElements(){
              return elements; }
}

So How to convert Class A's Elements Collection object into Class B's Element[] object.