ReverseFunction (container-search 7.270.21 API)

java.lang.Object
- com.yahoo.search.grouping.request.GroupingNode
- - com.yahoo.search.grouping.request.GroupingExpression
  - - com.yahoo.search.grouping.request.FunctionNode
    - - com.yahoo.search.grouping.request.ReverseFunction

All Implemented Interfaces:

java.lang.Iterable<GroupingExpression>
```
public class ReverseFunction
extends FunctionNode
```
This class represents a reverse-function in a GroupingExpression. It evaluates to a list that equals the list result of the argument, sorted in descending order.

Author:

baldersheim, bratseth

- Constructor Summary
  
  Constructors
  Constructor Description
  
  ReverseFunction(GroupingExpression exp)
  Constructs a new instance of this class.
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  ReverseFunction copy()
  Returns a deep copy of this
  - Methods inherited from class com.yahoo.search.grouping.request.FunctionNode
    args, asList, asList, asList, getArg, getNumArgs, iterator, resolveLevel, visit
  - Methods inherited from class com.yahoo.search.grouping.request.GroupingExpression
    asImage, asString, getLevel, getLevelOrNull, setLabel
  - Methods inherited from class com.yahoo.search.grouping.request.GroupingNode
    getImage, getLabel, toString
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
  - Methods inherited from interface java.lang.Iterable
    forEach, spliterator

- Constructor Detail
  - ReverseFunction
```
public ReverseFunction(GroupingExpression exp)
```
    Constructs a new instance of this class.
    
    Parameters:
    
    exp - The expression to evaluate, must evaluate to a list.
- Method Detail
  - copy
```
public ReverseFunction copy()
```
    Description copied from class: GroupingExpression
    
    Returns a deep copy of this
    
    Specified by:
    
    copy in class GroupingExpression