UpdateFunction.Simple (apache-cassandra API)

java.lang.Object
- org.apache.cassandra.utils.btree.UpdateFunction.Simple<V>

All Implemented Interfaces:: UpdateFunction<V,V>

Enclosing interface:: UpdateFunction<K,V>

public static final class UpdateFunction.Simple<V>
extends java.lang.Object
implements UpdateFunction<V,V>

Nested Class Summary
- Nested classes/interfaces inherited from interface org.apache.cassandra.utils.btree.UpdateFunction
  UpdateFunction.Simple<V>

Field Summary
- Fields inherited from interface org.apache.cassandra.utils.btree.UpdateFunction
  noOp

Constructor Summary

Constructors
Constructor Description

Simple(java.util.function.BiFunction<V,V,V> wrapped)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`V`	`insert(V v)`	Computes the value that should be inserted in the BTree.
`V`	`merge(V replacing, V update)`	Computes the result of merging the existing value with the one from the update.
`static <V> UpdateFunction.Simple<V>`	`of(java.util.function.BiFunction<V,V,V> f)`
`void`	`onAllocatedOnHeap(long heapSize)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Simple
```
public Simple(java.util.function.BiFunction<V,V,V> wrapped)
```
- Method Detail
  - insert
```
public V insert(V v)
```
    Description copied from interface: UpdateFunction
    
    Computes the value that should be inserted in the BTree.
    
    Specified by:
    
    insert in interface UpdateFunction<V,V>
    
    Parameters:
    
    v - the update value
    
    Returns:
    
    the value that should be inserted in the BTree
  - merge
```
public V merge(V replacing,
               V update)
```
    Description copied from interface: UpdateFunction
    
    Computes the result of merging the existing value with the one from the update.
    
    Specified by:
    
    merge in interface UpdateFunction<V,V>
    
    Parameters:
    
    replacing - the value in the original tree we have matched
    
    update - the value in the updating collection that matched
    
    Returns:
    
    the value to insert into the new tree
  - onAllocatedOnHeap
```
public void onAllocatedOnHeap(long heapSize)
```
    Specified by:
    
    onAllocatedOnHeap in interface UpdateFunction<V,V>
    
    Parameters:
    
    heapSize - extra heap space allocated (over previous tree)
  - of
```
public static <V> UpdateFunction.Simple<V> of(java.util.function.BiFunction<V,V,V> f)
```