Package com.vaadin.flow.component.combobox

Class ComboBoxDataCommunicator.SelectionPreservingKeyMapper<TItem>

java.lang.Object

com.vaadin.flow.data.provider.KeyMapper<TItem>

com.vaadin.flow.component.combobox.ComboBoxDataCommunicator.SelectionPreservingKeyMapper<TItem>

Type Parameters:

TItem - The type of the item selectable in the combo box

All Implemented Interfaces:

com.vaadin.flow.data.provider.DataKeyMapper<TItem>, Serializable

Enclosing class:

ComboBoxDataCommunicator<TItem>

protected static class ComboBoxDataCommunicator.SelectionPreservingKeyMapper<TItem>
extends com.vaadin.flow.data.provider.KeyMapper<TItem>

Customized key mapper that does not remove key for an item as long as it is selected.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
SelectionPreservingKeyMapper(ComboBoxBase<?,TItem,?> comboBox)

Method Summary

Modifier and Type	Method	Description
String	key(TItem item)
void	purgeItems()
void	remove(TItem item)

Methods inherited from class com.vaadin.flow.data.provider.KeyMapper

containsKey, createKey, get, has, refresh, removeAll, setIdentifierGetter

Methods inherited from class java.lang.Object

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

Constructor Details

SelectionPreservingKeyMapper

public SelectionPreservingKeyMapper(ComboBoxBase<?,TItem,?> comboBox)

Method Details

remove

public void remove(TItem item)

Specified by:

remove in interface com.vaadin.flow.data.provider.DataKeyMapper<TItem>

Overrides:

remove in class com.vaadin.flow.data.provider.KeyMapper<TItem>

key

public String key(TItem item)

Specified by:

key in interface com.vaadin.flow.data.provider.DataKeyMapper<TItem>

Overrides:

key in class com.vaadin.flow.data.provider.KeyMapper<TItem>

purgeItems

public void purgeItems()