org.apache.cassandra.utils.btree

Class UpdateFunction.NoOp<V>

java.lang.Object

org.apache.cassandra.utils.btree.UpdateFunction.NoOp<V>

All Implemented Interfaces:

com.google.common.base.Function<V,V>, UpdateFunction<V>

Enclosing interface:

UpdateFunction<V>

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

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.cassandra.utils.btree.UpdateFunction

UpdateFunction.NoOp<V>

Method Summary

Modifier and Type	Method and Description
boolean	abortEarly()
void	allocated(long heapSize)
V	apply(V update)
V	apply(V replacing, V update)
static <V> UpdateFunction.NoOp<V>	instance()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.google.common.base.Function

equals

Method Detail

instance

public static <V> UpdateFunction.NoOp<V> instance()

apply

public V apply(V replacing,
               V update)

Specified by:

apply in interface UpdateFunction<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

apply

public V apply(V update)

Specified by:

apply in interface com.google.common.base.Function<V,V>

abortEarly

public boolean abortEarly()

Specified by:

abortEarly in interface UpdateFunction<V>

Returns:

true if we should fail the update

allocated

public void allocated(long heapSize)

Specified by:

allocated in interface UpdateFunction<V>

Parameters:

heapSize - extra heap space allocated (over previous tree)