CatFunction (container-search 7.561.60 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.CatFunction

All Implemented Interfaces:

Iterable<GroupingExpression>
```
public class CatFunction
extends FunctionNode
```
This class represents a cat-function in a GroupingExpression. It evaluates to a byte array that equals the concatenation of the binary result of all arguments in the order they were given to the constructor.

Author:

Simon Thoresen Hult, bratseth

Constructor Summary

Constructors
Constructor	Description
`CatFunction(GroupingExpression arg1, GroupingExpression arg2, GroupingExpression... argN)`	Constructs a new instance of this class.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`CatFunction`	`copy()`	Returns a deep copy of this
`static CatFunction`	`newInstance(List<GroupingExpression> args)`	Constructs a new instance of this class from a list of arguments.

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
  - CatFunction
```
public CatFunction(GroupingExpression arg1,
                   GroupingExpression arg2,
                   GroupingExpression... argN)
```
    Constructs a new instance of this class.
    
    Parameters:
    
    arg1 - The first compulsory argument.
    
    arg2 - The second compulsory argument.
    
    argN - The optional arguments.
- Method Detail
  - copy
```
public CatFunction copy()
```
    Description copied from class: GroupingExpression
    
    Returns a deep copy of this
    
    Specified by:
    
    copy in class GroupingExpression
  - newInstance
```
public static CatFunction newInstance(List<GroupingExpression> args)
```
    Constructs a new instance of this class from a list of arguments.
    
    Parameters:
    
    args - The arguments to pass to the constructor.
    
    Returns:
    
    The created instance.
    
    Throws:
    
    IllegalArgumentException - Thrown if the number of arguments is less than 2.