Package io.jmix.kanbanflowui.kit.component.data

Class JmixEmptyKanbanItems<T>

java.lang.Object

io.jmix.kanbanflowui.kit.component.data.JmixEmptyKanbanItems<T>

Type Parameters:

T - type of items contained

All Implemented Interfaces:

JmixKanbanItems<T>, Serializable

Direct Known Subclasses:

EmptyKanbanItems

public class JmixEmptyKanbanItems<T>
extends Object
implements JmixKanbanItems<T>

Empty data provider for a JmixKanban component.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface io.jmix.kanbanflowui.kit.component.data.JmixKanbanItems

JmixKanbanItems.ItemsChangeEvent<T>, JmixKanbanItems.ItemsChangeType

Field Summary

Fields

Modifier and Type	Field	Description
static JmixEmptyKanbanItems	INSTANCE

Constructor Summary

Constructors

Constructor	Description
JmixEmptyKanbanItems()

Method Summary

Modifier and Type	Method	Description
com.vaadin.flow.shared.Registration	addItemsChangeListener(Consumer<JmixKanbanItems.ItemsChangeEvent<T>> listener)	Adds a listener that will be called when the associated collection or the property of an item of this collection changes.
boolean	containsItem(T item)
static <T> JmixEmptyKanbanItems<T>	getInstance()
T	getItem(Object itemId)	Finds an item by its id.
T	getItem(String stringId)	Finds an item by its string id.
Object	getItemId(T item)
Collection<T>	getItems()
<V> V	getItemValue(T itemId, String propertyId)
void	setItemValue(T item, String propertyPath, Object value)	Sets the value to the item.
void	updateItem(T item)	If the item with the same id exists, it is replaced with the given instance.

Methods inherited from class java.lang.Object

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

Field Details

INSTANCE

public static JmixEmptyKanbanItems INSTANCE

Constructor Details

JmixEmptyKanbanItems

public JmixEmptyKanbanItems()

Method Details

getInstance

public static <T> JmixEmptyKanbanItems<T> getInstance()

Type Parameters:

T - type of items contained

Returns:

instance of the JmixEmptyKanbanItems

getItems

public Collection<T> getItems()

Specified by:

getItems in interface JmixKanbanItems<T>

Returns:

unmodifiable collection of items

getItem

@Nullable
public T getItem(Object itemId)

Description copied from interface: JmixKanbanItems

Finds an item by its id.

Specified by:

getItem in interface JmixKanbanItems<T>

Parameters:

itemId - the item id

Returns:

the item by the given id

getItem

@Nullable
public T getItem(String stringId)

Description copied from interface: JmixKanbanItems

Finds an item by its string id.

Specified by:

getItem in interface JmixKanbanItems<T>

Parameters:

stringId - the item string id

Returns:

the item by the given id

getItemValue

@Nullable
public <V> V getItemValue(T itemId,
 String propertyId)

Specified by:

getItemValue in interface JmixKanbanItems<T>

Parameters:

itemId - the item

propertyId - the property path

Returns:

the item value

getItemId

@Nullable
public Object getItemId(T item)

Specified by:

getItemId in interface JmixKanbanItems<T>

Parameters:

item - the item

Returns:

the id of the item

setItemValue

public void setItemValue(T item,
 String propertyPath,
 @Nullable
 Object value)

Description copied from interface: JmixKanbanItems

Sets the value to the item.

Specified by:

setItemValue in interface JmixKanbanItems<T>

Parameters:

item - the item

propertyPath - the property path

value - the value to set

updateItem

public void updateItem(T item)

Description copied from interface: JmixKanbanItems

If the item with the same id exists, it is replaced with the given instance. If not, the given instance is added to the items list.

Specified by:

updateItem in interface JmixKanbanItems<T>

Parameters:

item - item to update

containsItem

public boolean containsItem(T item)

Specified by:

containsItem in interface JmixKanbanItems<T>

Parameters:

item - an item to check

Returns:

true if the underlying collection contains an item, false otherwise

addItemsChangeListener

public com.vaadin.flow.shared.Registration addItemsChangeListener(Consumer<JmixKanbanItems.ItemsChangeEvent<T>> listener)

Description copied from interface: JmixKanbanItems

Adds a listener that will be called when the associated collection or the property of an item of this collection changes.

Specified by:

addItemsChangeListener in interface JmixKanbanItems<T>

Parameters:

listener - a listener to add

Returns:

a handle that can be used for removing the listener