Package com.vaadin.flow.component.select.data

Class SelectListDataView<T>

java.lang.Object

com.vaadin.flow.data.provider.AbstractDataView<T>

com.vaadin.flow.data.provider.AbstractListDataView<T>

com.vaadin.flow.component.select.data.SelectListDataView<T>

Type Parameters:

T - item type

All Implemented Interfaces:

DataView<T>, ListDataView<T,AbstractListDataView<T>>, Serializable

public class SelectListDataView<T>
extends AbstractListDataView<T>

Data view implementation for Select with in-memory list data. Provides information on the data and allows operations on it.

See Also:

• Serialized Form

Field Summary

Fields inherited from class com.vaadin.flow.data.provider.AbstractDataView

component, dataProviderSupplier, NULL_IDENTIFIER_ERROR_MESSAGE, NULL_ITEM_ERROR_MESSAGE

Constructor Summary

Constructors

Constructor	Description
SelectListDataView(SerializableSupplier<DataProvider<T,?>> dataProviderSupplier, Select<T> select, SerializableBiConsumer<SerializablePredicate<T>,SerializableComparator<T>> filterOrSortingChangedCallback)	Creates a new in-memory data view for Select and verifies the passed data provider is compatible with this data view implementation.
SelectListDataView(SerializableSupplier<DataProvider<T,?>> dataProviderSupplier, Select<T> select, SerializableConsumer<IdentifierProvider<T>> identifierChangedCallback, SerializableBiConsumer<SerializablePredicate<T>,SerializableComparator<T>> filterOrSortingChangedCallback)	Creates a new in-memory data view for Select and verifies the passed data provider is compatible with this data view implementation.

Method Summary

Modifier and Type	Method	Description
void	setIdentifierProvider(IdentifierProvider<T> identifierProvider)	Sets an identifier provider, which returns an identifier for the given item.

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

addFilter, addItem, addItemAfter, addItemBefore, addItems, addItemsAfter, addItemsBefore, addSortComparator, addSortOrder, contains, getDataProvider, getItem, getItemCount, getItems, getNextItem, getPreviousItem, getSupportedDataProviderType, removeFilters, removeItem, removeItems, removeSorting, setFilter, setSortComparator, setSortOrder, validateItemIndex

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

addIdentifierProviderChangeListener, addItemCountChangeListener, equals, getIdentifierProvider, getItemIndex, getItemIndex, refreshAll, refreshItem, verifyDataProviderType, verifyDataProviderType

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.vaadin.flow.data.provider.DataView

addItemCountChangeListener, getItemIndex, refreshAll, refreshItem

Constructor Details

SelectListDataView

public SelectListDataView(SerializableSupplier<DataProvider<T,?>> dataProviderSupplier,
 Select<T> select,
 SerializableBiConsumer<SerializablePredicate<T>,SerializableComparator<T>> filterOrSortingChangedCallback)

Creates a new in-memory data view for Select and verifies the passed data provider is compatible with this data view implementation.

Parameters:

dataProviderSupplier - supplier from which the DataProvider can be gotten

select - select component that the dataView is bound to

filterOrSortingChangedCallback - callback, which is being invoked when the Select's filtering or sorting changes, not null

SelectListDataView

public SelectListDataView(SerializableSupplier<DataProvider<T,?>> dataProviderSupplier,
 Select<T> select,
 SerializableConsumer<IdentifierProvider<T>> identifierChangedCallback,
 SerializableBiConsumer<SerializablePredicate<T>,SerializableComparator<T>> filterOrSortingChangedCallback)

Creates a new in-memory data view for Select and verifies the passed data provider is compatible with this data view implementation.

Parameters:

dataProviderSupplier - supplier from which the DataProvider can be gotten

select - select component that the dataView is bound to

identifierChangedCallback - callback method which should be called when identifierProvider is changed

filterOrSortingChangedCallback - callback, which is being invoked when the Select's filtering or sorting changes, not null

Method Details

setIdentifierProvider

public void setIdentifierProvider(IdentifierProvider<T> identifierProvider)

Description copied from interface: DataView

Sets an identifier provider, which returns an identifier for the given item. The identifier is used for comparing the equality of items. Usage example: dataView.setIdentifiedProvider(Item::getId);.

Specified by:

setIdentifierProvider in interface DataView<T>

Overrides:

setIdentifierProvider in class AbstractDataView<T>

Parameters:

identifierProvider - function that returns the non-null identifier for a given item