Package org.graalvm.collections

Class SeqLockPrefixTree.Node

java.lang.Object

java.lang.Number

java.util.concurrent.atomic.AtomicLong

org.graalvm.collections.SeqLockPrefixTree.Node

All Implemented Interfaces:

Serializable

Enclosing class:

SeqLockPrefixTree

public static final class SeqLockPrefixTree.Node
extends AtomicLong

Since:

22.3

See Also:

• Serialized Form

Method Summary

Modifier and Type	Method	Description
SeqLockPrefixTree.Node	at(long key)	Get existing (or create if missing) child with the given key.
long	incValue()	Increment value.
long	seqlockValue()
void	setValue(long value)	Set the value for the LockFreePrefixTree.Node.
<C> void	topDown(C currentContext, BiFunction<C,Long,C> createContext, BiConsumer<C,Long> consumeValue)	Traverse the tree top-down while maintaining a context.
String	toString()
long	value()

Methods inherited from class java.util.concurrent.atomic.AtomicLong

accumulateAndGet, addAndGet, compareAndExchange, compareAndExchangeAcquire, compareAndExchangeRelease, compareAndSet, decrementAndGet, doubleValue, floatValue, get, getAcquire, getAndAccumulate, getAndAdd, getAndDecrement, getAndIncrement, getAndSet, getAndUpdate, getOpaque, getPlain, incrementAndGet, intValue, lazySet, longValue, set, setOpaque, setPlain, setRelease, updateAndGet, weakCompareAndSet, weakCompareAndSetAcquire, weakCompareAndSetPlain, weakCompareAndSetRelease, weakCompareAndSetVolatile

Methods inherited from class java.lang.Number

byteValue, shortValue

Methods inherited from class java.lang.Object

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

Method Details

value

public long value()

Returns:

The value of the LockFreePrefixTree.Node

Since:

22.3

incValue

public long incValue()

Increment value.

Returns:

newly incremented value of the LockFreePrefixTree.Node.

Since:

22.3

setValue

public void setValue(long value)

Set the value for the LockFreePrefixTree.Node.

Parameters:

value - the new value.

Since:

22.3

at

public SeqLockPrefixTree.Node at(long key)

Get existing (or create if missing) child with the given key.

Parameters:

key - the key of the child.

Returns:

The child with the given childKey.

Since:

22.3

seqlockValue

public long seqlockValue()

Returns:

the value of the seqlock.

Since:

22.3

topDown

public <C> void topDown(C currentContext,
 BiFunction<C,Long,C> createContext,
 BiConsumer<C,Long> consumeValue)

Traverse the tree top-down while maintaining a context. The context is a generic data structure corresponding to the depth of the traversal, i.e. given the currentContext and a createContext function, a new context is created for each visited child using the createContext function, starting with initialContext.

Type Parameters:

C - The type of the context

Parameters:

currentContext - The context for the root of the tree

createContext - A function defining how the context for children is created

consumeValue - A function that consumes the nodes value

Since:

22.3

toString

public String toString()

Overrides:

toString in class AtomicLong

Since:

22.3