FunctionNode (searchlib 7.255.24 API)

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

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

Direct Known Subclasses:

AttributeNode, MultiArgFunctionNode
```
public abstract class FunctionNode
extends ExpressionNode
```
This abstract expression node represents a function to execute.

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

FunctionNode()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`FunctionNode`	`clone()`
`protected boolean`	`equalsExpression(ExpressionNode obj)`
`protected abstract boolean`	`equalsFunction(FunctionNode obj)`
`ResultNode`	`getResult()`	Get the result of this expression.
`protected void`	`onDeserialize(com.yahoo.vespa.objects.Deserializer buf)`
`protected int`	`onGetClassId()`
`protected void`	`onSerialize(com.yahoo.vespa.objects.Serializer buf)`
`FunctionNode`	`setResult(ResultNode res)`
`void`	`visitMembers(com.yahoo.vespa.objects.ObjectVisitor visitor)`

Methods inherited from class com.yahoo.searchlib.expression.ExpressionNode
equals, execute, executeIterative, onArgument, onExecute, onPrepare, prepare

Methods inherited from class com.yahoo.vespa.objects.Identifiable
create, createFromId, deserialize, deserializeOptional, deserializeWithId, equals, getClassId, getUtf8, hashCode, putUtf8, registerClass, serialize, serializeOptional, serializeWithId, toString

Methods inherited from class com.yahoo.vespa.objects.Selectable
select, select, selectMembers

Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - classId
```
public static final int classId
```
- Constructor Detail
  - FunctionNode
```
public FunctionNode()
```
- Method Detail
  - setResult
```
public FunctionNode setResult(ResultNode res)
```
  - getResult
```
public final ResultNode getResult()
```
    Description copied from class: ExpressionNode
    
    Get the result of this expression.
    
    Specified by:
    
    getResult in class ExpressionNode
    
    Returns:
    
    the result as a ResultNode.
  - onGetClassId
```
protected int onGetClassId()
```
    Overrides:
    
    onGetClassId in class ExpressionNode
  - onSerialize
```
protected void onSerialize(com.yahoo.vespa.objects.Serializer buf)
```
    Overrides:
    
    onSerialize in class ExpressionNode
  - onDeserialize
```
protected void onDeserialize(com.yahoo.vespa.objects.Deserializer buf)
```
    Overrides:
    
    onDeserialize in class ExpressionNode
  - clone
```
public FunctionNode clone()
```
    Overrides:
    
    clone in class ExpressionNode
  - visitMembers
```
public void visitMembers(com.yahoo.vespa.objects.ObjectVisitor visitor)
```
    Overrides:
    
    visitMembers in class ExpressionNode
  - equalsExpression
```
protected final boolean equalsExpression(ExpressionNode obj)
```
    Specified by:
    
    equalsExpression in class ExpressionNode
  - equalsFunction
```
protected abstract boolean equalsFunction(FunctionNode obj)
```