Package com.almworks.jira.structure.api.item

Class ItemIdentitySet

Object

AbstractCollection<E>

AbstractSet<ItemIdentity>

ItemIdentitySet

All Implemented Interfaces:

Iterable<ItemIdentity>, Collection<ItemIdentity>, Set<ItemIdentity>

@Internal
public class ItemIdentitySet
extends AbstractSet<ItemIdentity>

An implementation of a Set of ItemIdentity, optimized for memory consumption and objects count.

Implementation Notes

Statistics: compared to HashSet, 4x less memory taken, 1.5x slower. The number of objects is ~ 10 (compared to N*2 with HashSet), if all item IDs are long. String item IDs create K*2 objects as well.

Constructor Summary

Constructors

Constructor	Description
ItemIdentitySet()
ItemIdentitySet(ItemIdentity... ids)
ItemIdentitySet(Collection<? extends ItemIdentity> ids)

Method Summary

Modifier and Type	Method	Description
boolean	add(ItemIdentity id)
void	addAll(String type, LongIterable longs)
void	addAll(String type, Iterable<String> strings)
boolean	addAll(Collection<? extends ItemIdentity> c)
void	clear()
static Set<ItemIdentity>	collectItemIds(RowRetriever rowRetriever, LongIterable rows)
boolean	contains(Object o)
boolean	containsAll(Collection<?> c)
ItemIdentitySet	copy()
ItemIdentitySet	copyAllOfType(String typeId)
Iterable<String>	getItemTypes()
boolean	isImmutable()
Iterator<ItemIdentity>	iterator()
LongSizedIterable	longIds(String typeId)
ItemIdentitySet	makeImmutable()
static ItemIdentitySet	of(String itemType, long[] ids)
static ItemIdentitySet	of(String itemType, LongIterable ids)
static ItemIdentitySet	of(String itemType, Iterable<String> ids)
boolean	remove(Object o)
boolean	removeAll(Collection<?> c)
boolean	retainAll(Collection<?> c)
int	size()
Set<String>	stringIds(String typeId)

Methods inherited from class AbstractSet

equals, hashCode

Methods inherited from class AbstractCollection

isEmpty, toArray, toArray, toString

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface Collection

parallelStream, removeIf, stream, toArray

Methods inherited from interface Iterable

forEach

Methods inherited from interface Set

isEmpty, spliterator, toArray, toArray

Constructor Details

ItemIdentitySet

public ItemIdentitySet()

ItemIdentitySet

public ItemIdentitySet(ItemIdentity... ids)

ItemIdentitySet

public ItemIdentitySet(Collection<? extends ItemIdentity> ids)

Method Details

of

public static ItemIdentitySet of(String itemType,
 long[] ids)

of

public static ItemIdentitySet of(String itemType,
 LongIterable ids)

of

public static ItemIdentitySet of(String itemType,
 Iterable<String> ids)

iterator

@NotNull
public Iterator<ItemIdentity> iterator()

Specified by:

iterator in interface Collection<ItemIdentity>

Specified by:

iterator in interface Iterable<ItemIdentity>

Specified by:

iterator in interface Set<ItemIdentity>

Specified by:

iterator in class AbstractCollection<ItemIdentity>

size

public int size()

Specified by:

size in interface Collection<ItemIdentity>

Specified by:

size in interface Set<ItemIdentity>

Specified by:

size in class AbstractCollection<ItemIdentity>

contains

public boolean contains(Object o)

Specified by:

contains in interface Collection<ItemIdentity>

Specified by:

contains in interface Set<ItemIdentity>

Overrides:

contains in class AbstractCollection<ItemIdentity>

containsAll

public boolean containsAll(@NotNull
 Collection<?> c)

Specified by:

containsAll in interface Collection<ItemIdentity>

Specified by:

containsAll in interface Set<ItemIdentity>

Overrides:

containsAll in class AbstractCollection<ItemIdentity>

add

public boolean add(ItemIdentity id)

Specified by:

add in interface Collection<ItemIdentity>

Specified by:

add in interface Set<ItemIdentity>

Overrides:

add in class AbstractCollection<ItemIdentity>

addAll

public boolean addAll(@NotNull
 Collection<? extends ItemIdentity> c)

Specified by:

addAll in interface Collection<ItemIdentity>

Specified by:

addAll in interface Set<ItemIdentity>

Overrides:

addAll in class AbstractCollection<ItemIdentity>

addAll

public void addAll(@NotNull
 String type,
 @NotNull
 Iterable<String> strings)

addAll

public void addAll(@NotNull
 String type,
 @NotNull
 LongIterable longs)

remove

public boolean remove(Object o)

Specified by:

remove in interface Collection<ItemIdentity>

Specified by:

remove in interface Set<ItemIdentity>

Overrides:

remove in class AbstractCollection<ItemIdentity>

removeAll

public boolean removeAll(Collection<?> c)

Specified by:

removeAll in interface Collection<ItemIdentity>

Specified by:

removeAll in interface Set<ItemIdentity>

Overrides:

removeAll in class AbstractSet<ItemIdentity>

retainAll

public boolean retainAll(Collection<?> c)

Specified by:

retainAll in interface Collection<ItemIdentity>

Specified by:

retainAll in interface Set<ItemIdentity>

Overrides:

retainAll in class AbstractCollection<ItemIdentity>

makeImmutable

public ItemIdentitySet makeImmutable()

isImmutable

public boolean isImmutable()

clear

public void clear()

Specified by:

clear in interface Collection<ItemIdentity>

Specified by:

clear in interface Set<ItemIdentity>

Overrides:

clear in class AbstractCollection<ItemIdentity>

getItemTypes

public Iterable<String> getItemTypes()

copyAllOfType

public ItemIdentitySet copyAllOfType(String typeId)

copy

public ItemIdentitySet copy()

longIds

public LongSizedIterable longIds(String typeId)

stringIds

public Set<String> stringIds(String typeId)

collectItemIds

@NotNull
public static Set<ItemIdentity> collectItemIds(@NotNull
 RowRetriever rowRetriever,
 @Nullable
 LongIterable rows)