MultiselectDecisionItemVisitor (Multiselect parameter 1.8 API)

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
```
@FunctionalInterface
public interface MultiselectDecisionItemVisitor
```
Visitor implementation to use when traversing item tree to collect information.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`visit(MultiselectDecisionItem item, MultiselectVariableDescriptor column)`	The visit method is called in all traversed items in tree.

- Method Detail
  - visit
```
boolean visit(MultiselectDecisionItem item,
              MultiselectVariableDescriptor column)
```
    The visit method is called in all traversed items in tree.
    
    Parameters:
    
    item - the current item in tree
    
    column - column meta information
    
    Returns:
    
    false in case walking through the item tree shall be aborted