XorBitFunctionNode (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.UnaryBitFunctionNode
        
        com.yahoo.searchlib.expression.XorBitFunctionNode

All Implemented Interfaces:

Serializable, Cloneable
```
public class XorBitFunctionNode
extends UnaryBitFunctionNode
```
This function is a request to bitwise XOR the result of its first argument with itself in chunks of the second argument number of bits. If the result to XOR is a 24 bit value, and the second argument is 8, this function will XOR the first 8 bits of the result with the next 8 bits of the result, and then XOR that number with the next 8 bits of the result.

Author:

baldersheim, Simon Thoresen Hult

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type Field Description

static int classId

Constructor Summary

Constructors
Constructor	Description
`XorBitFunctionNode()`	Constructs an empty result node.
`XorBitFunctionNode(ExpressionNode arg, int numBits)`	Constructs an instance of this class with given argument and number of bits.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type Method Description

protected int onGetClassId()
- Methods inherited from class com.yahoo.searchlib.expression.UnaryBitFunctionNode
  equalsUnaryFunction, getNumBits, hashCode, onDeserialize, onSerialize, setNumBits, visitMembers
- 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, onCalculate, onExecute, selectMembers
- 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
  - XorBitFunctionNode
```
public XorBitFunctionNode()
```
    Constructs an empty result node. NOTE: This instance is broken until non-optional member data is set.
  - XorBitFunctionNode
```
public XorBitFunctionNode(ExpressionNode arg,
                          int numBits)
```
    Constructs an instance of this class with given argument and number of bits.
    
    Parameters:
    
    arg - The argument for this function.
    
    numBits - The number of bits to operate on.
- Method Detail
  - onGetClassId
```
protected int onGetClassId()
```
    Overrides:
    
    onGetClassId in class UnaryBitFunctionNode