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Having issue with Mapping Child-Parent in Tree [message #1723604]

Tue, 16 February 2016 17:59

Amol Salunke

Messages: 16
Registered: March 2015

Junior Member

I am using below code but it is not displaying the correct mapping with child-parent in tree.

@Override
public void getPath(List path, Object element)
{
path.add(element); // Adding Parent here
List children = element.getChildren(); // getting all required child.
if (children != null && children.size() > 0)
{
for (Object child : children)
{
path.add(child); // Looping on loop for all child
}
}
}

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In above code I get the one object which has three child but it is not showing with under correct parent.
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For example, I have data that I want to show in tree format like , parent 'A' which has three child 'B', 'C', 'D'.

I am expecting result as below
A
----B
----C
----D
but I gets as below (not expected)
A
---- B
--------- C
-------------- D
What should I do more to get desired output.

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Re: Having issue with Mapping Child-Parent in Tree [message #1723609 is a reply to message #1723604]

Tue, 16 February 2016 18:17

Dirk Fauth

Messages: 2902
Registered: July 2012

Senior Member

Don't iterate over all children. The method is called for every object in the collection

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Re: Having issue with Mapping Child-Parent in Tree [message #1723684 is a reply to message #1723609]

Wed, 17 February 2016 08:59

Amol Salunke

Messages: 16
Registered: March 2015

Junior Member

Thanks for your reply.

Try to add as collection (all children) but it gives me the same output.

am adding all in a list Instead of looping. as below.

path.addAll (children);

Am I missing anything?

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