io.github.opencubicchunks.cubicchunks.core.util

Class WatchersSortingList<T>

java.lang.Object

io.github.opencubicchunks.cubicchunks.core.util.WatchersSortingList<T>

All Implemented Interfaces:

java.lang.Iterable<T>

public class WatchersSortingList<T>
extends java.lang.Object
implements java.lang.Iterable<T>

Helper class to delay removing of an elements. Created and used to reduce CPU load during removing elements from this list on event of player movement as replacement of ArrayList.

Constructor Summary

Constructors

Constructor and Description
WatchersSortingList(java.util.Comparator<T> orderIn)

Method Summary

Modifier and Type	Method and Description
void	appendToEnd(T element) Add element to an end of list.
void	appendToStart(T element) Append element to start of a list.
boolean	contains(T element)
boolean	isEmpty() Check if list is empty.
java.util.Iterator<T>	iterator() Return iterator over elements of list.
void	remove(T entry) Schedule element to be removed if it is contained in list.
void	removeIf(java.util.function.Predicate<T> predicate) Remove such elements a whom return true on call predicate.test(a) from that list immediately.
void	sort() Sort and remove dead elements
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

WatchersSortingList

public WatchersSortingList(java.util.Comparator<T> orderIn)

Method Detail

sort

public void sort()

Sort and remove dead elements

isEmpty

public boolean isEmpty()

Check if list is empty. Even when it return true list still could contain data, but it will be removed in attempt to access it via iterator.

Returns:

if list contain any accessible data

iterator

@Nonnull
public java.util.Iterator<T> iterator()

Return iterator over elements of list. If iterator meet any element which is scheduled to be removed by remove(T element) function, it will be removed from data.

Specified by:

iterator in interface java.lang.Iterable<T>

Returns:

iterator over elements

remove

public void remove(T entry)

Schedule element to be removed if it is contained in list.

Parameters:

entry - entry to remove

removeIf

public void removeIf(java.util.function.Predicate<T> predicate)

Remove such elements a whom return true on call predicate.test(a) from that list immediately.

Parameters:

predicate - a predicate matching entries to remove

appendToStart

public void appendToStart(T element)

Append element to start of a list.

Parameters:

element - element to add

Throws:

java.lang.NullPointerException - in attempt to add null.

java.lang.IllegalArgumentException - if list already contain such element.

appendToEnd

public void appendToEnd(T element)

Add element to an end of list.

Parameters:

element - element to add

Throws:

java.lang.NullPointerException - in attempt to add null.

java.lang.IllegalArgumentException - if list already contain such element.

contains

public boolean contains(T element)

Parameters:

element - element to check

Returns:

true if list contains element.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object