com.vaadin.flow.component.combobox.ComboBoxDataCommunicator.SelectionPreservingKeyMapper API 24.6.4

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

Type Parameters:

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

All Implemented Interfaces:

Enclosing class:

protected static class ComboBoxDataCommunicator.SelectionPreservingKeyMapper<TItem> extends KeyMapper<TItem>

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

See Also:

Constructor Details
- SelectionPreservingKeyMapper
  
  public SelectionPreservingKeyMapper(ComboBoxBase<?,TItem,?> comboBox)
Method Details
- remove
  
  public void remove(TItem item)
  
  Description copied from class: KeyMapper
  
  Removes object from the mapper.
  
  Specified by:
  
  remove in interface DataKeyMapper<TItem>
  
  Overrides:
  
  remove in class KeyMapper<TItem>
  
  Parameters:
  
  item - the object to be removed.
- key
  
  public String key(TItem item)
  
  Description copied from class: KeyMapper
  
  Gets key for an object.
  
  Specified by:
  
  key in interface DataKeyMapper<TItem>
  
  Overrides:
  
  key in class KeyMapper<TItem>
  
  Parameters:
  
  item - the object.
  
  Returns:
  
  key for given data object
- purgeItems
  
  public void purgeItems()

Class ComboBoxDataCommunicator.SelectionPreservingKeyMapper<TItem>