org.apache.cassandra.utils.btree

Class UpdateFunction.Simple<V>

java.lang.Object

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

All Implemented Interfaces:

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

Method Summary

Modifier and Type	Method and Description
boolean	abortEarly()
void	allocated(long heapSize)
V	apply(V v)
V	apply(V replacing, V update)
static <V> UpdateFunction.Simple<V>	of(java.util.function.BiFunction<V,V,V> f)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.cassandra.utils.btree.UpdateFunction

noOp

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

equals

Methods inherited from interface java.util.function.Function

andThen, compose, identity

Constructor Detail

Simple

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

Method Detail

apply

public V apply(V v)

Specified by:

apply in interface java.util.function.Function<V,V>

apply

public V apply(V replacing,
               V update)

Specified by:

apply 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

abortEarly

public boolean abortEarly()

Specified by:

abortEarly in interface UpdateFunction<V,V>

Returns:

true if we should fail the update

allocated

public void allocated(long heapSize)

Specified by:

allocated 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)