CatFunctionNode (searchlib 7.251.31 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.CatFunctionNode

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable
```
public class CatFunctionNode
extends MultiArgFunctionNode
```
This function is an instruction to concatenate the bits of all arguments in order.

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

CatFunctionNode()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected boolean`	`equalsMultiArgFunction(MultiArgFunctionNode obj)`
`protected boolean`	`onExecute()`
`protected int`	`onGetClassId()`
`protected void`	`onPrepare()`
`protected void`	`onPrepareResult()`

Methods inherited from class com.yahoo.searchlib.expression.MultiArgFunctionNode
addArg, clone, equalsFunction, getArg, getNumArgs, hashCode, onCalculate, onDeserialize, 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, 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
  - CatFunctionNode
```
public CatFunctionNode()
```
- Method Detail
  - onGetClassId
```
protected int onGetClassId()
```
    Overrides:
    
    onGetClassId in class MultiArgFunctionNode
  - equalsMultiArgFunction
```
protected boolean equalsMultiArgFunction(MultiArgFunctionNode obj)
```
    Specified by:
    
    equalsMultiArgFunction in class MultiArgFunctionNode
  - onPrepareResult
```
protected void onPrepareResult()
```
    Overrides:
    
    onPrepareResult in class MultiArgFunctionNode
  - onPrepare
```
protected void onPrepare()
```
    Overrides:
    
    onPrepare in class MultiArgFunctionNode
  - onExecute
```
protected boolean onExecute()
```
    Overrides:
    
    onExecute in class MultiArgFunctionNode