ReverseFunctionNode (searchlib 7.501.17 API)

java.lang.Object
- com.yahoo.vespa.objects.Selectable
- - com.yahoo.vespa.objects.Identifiable
  - - com.yahoo.searchlib.expression.ExpressionNode
    - - com.yahoo.searchlib.expression.FunctionNode
      - com.yahoo.searchlib.expression.MultiArgFunctionNode
        
        com.yahoo.searchlib.expression.UnaryFunctionNode
        
        com.yahoo.searchlib.expression.ReverseFunctionNode

All Implemented Interfaces:

Serializable, Cloneable
```
public class ReverseFunctionNode
extends UnaryFunctionNode
```
This class will revert the order on any multivalues. Nothing is done to single value types such as integers, float, strings and Raw values.

Author:

baldersheim

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type Field Description

static int classId

Constructor Summary

Constructors
Constructor	Description
`ReverseFunctionNode()`	Constructs an empty result node.
`ReverseFunctionNode(ExpressionNode arg)`	Constructs an instance of this class with given argument.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type Method Description

protected boolean equalsUnaryFunction(UnaryFunctionNode obj)

protected int onGetClassId()
- Methods inherited from class com.yahoo.searchlib.expression.UnaryFunctionNode
  equalsMultiArgFunction, getArg, onPrepare, onPrepareResult
- Methods inherited from class com.yahoo.searchlib.expression.MultiArgFunctionNode
  addArg, clone, equalsFunction, getArg, getNumArgs, hashCode, onCalculate, onDeserialize, onExecute, onSerialize, selectMembers, visitMembers
- Methods inherited from class com.yahoo.searchlib.expression.FunctionNode
  equalsExpression, getResult, setResult
- Methods inherited from class com.yahoo.searchlib.expression.ExpressionNode
  equals, execute, executeIterative, onArgument, prepare
- Methods inherited from class com.yahoo.vespa.objects.Identifiable
  create, createFromId, deserialize, deserializeOptional, deserializeWithId, equals, getClassId, getRawUtf8Bytes, getUtf8, putUtf8, registerClass, serialize, serializeOptional, serializeWithId, toString
- Methods inherited from class com.yahoo.vespa.objects.Selectable
  select, select
- Methods inherited from class java.lang.Object
  finalize, getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - classId
```
public static final int classId
```
- Constructor Detail
  - ReverseFunctionNode
```
public ReverseFunctionNode()
```
    Constructs an empty result node. NOTE: This instance is broken until non-optional member data is set.
  - ReverseFunctionNode
```
public ReverseFunctionNode(ExpressionNode arg)
```
    Constructs an instance of this class with given argument.
    
    Parameters:
    
    arg - The argument for this function.
- Method Detail
  - onGetClassId
```
protected int onGetClassId()
```
    Overrides:
    
    onGetClassId in class UnaryFunctionNode
  - equalsUnaryFunction
```
protected boolean equalsUnaryFunction(UnaryFunctionNode obj)
```
    Specified by:
    
    equalsUnaryFunction in class UnaryFunctionNode