com.almworks.jira.structure.api.attribute

Class TrailItemSet.None

java.lang.Object

com.almworks.jira.structure.api.attribute.TrailItemSet

com.almworks.jira.structure.api.attribute.TrailItemSet.None

Enclosing class:

TrailItemSet

public static final class TrailItemSet.None
extends TrailItemSet

Represents an empty set.

Nested Class Summary

Nested classes/interfaces inherited from class com.almworks.jira.structure.api.attribute.TrailItemSet

TrailItemSet.AllItems, TrailItemSet.Collector, TrailItemSet.None, TrailItemSet.OneItem, TrailItemSet.OneType, TrailItemSet.ReadVisitor, TrailItemSet.SpecificItems, TrailItemSet.SpecificTypes, TrailItemSet.Visitor

Field Summary

Fields

Modifier and Type	Field and Description
static TrailItemSet	NONE An empty set

Constructor Summary

Constructors

Constructor and Description
None()

Method Summary

Modifier and Type	Method and Description
void	accept(TrailItemSet.Visitor visitor) Allows the caller to perform per-subclass actions.
boolean	contains(ItemIdentity id) Checks if the set contains the given item.
TrailItemSet	expand(ItemIdentity trailItem) Expands the set to include the given item.

Methods inherited from class com.almworks.jira.structure.api.attribute.TrailItemSet

equals, hashCode, isEmpty, of, ofTypes, toString

Methods inherited from class java.lang.Object

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

Field Detail

NONE

public static final TrailItemSet NONE

An empty set

Constructor Detail

None

public None()

Method Detail

contains

public boolean contains(ItemIdentity id)

Description copied from class: TrailItemSet

Checks if the set contains the given item.

Specified by:

contains in class TrailItemSet

Parameters:

id - item ID

Returns:

true if the item is a part of this set

expand

@NotNull
public TrailItemSet expand(@Nullable
                                    ItemIdentity trailItem)

Description copied from class: TrailItemSet

Expands the set to include the given item. The result of this operation is a new set, which a) includes everything this set includes, b) includes given item.

Note that the resulting set may contain more items, due to escalation to a more wide set class. If you expand a set by a sufficient number of items, it will switch to be type-based set, which will contain all items of the given types.

Specified by:

expand in class TrailItemSet

Parameters:

trailItem - item to add to the set

Returns:

a new set with all items from this set and with trailItem

accept

public void accept(@NotNull
                   TrailItemSet.Visitor visitor)

Description copied from class: TrailItemSet

Allows the caller to perform per-subclass actions.

Specified by:

accept in class TrailItemSet