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com.vaadin.flow.component.grid.dataview.
Class GridListDataView<T>
- java.lang.Object
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- com.vaadin.flow.data.provider.AbstractDataView<T>
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- com.vaadin.flow.data.provider.AbstractListDataView<T>
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- com.vaadin.flow.component.grid.dataview.GridListDataView<T>
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Type Parameters:
T- data typeAll Implemented Interfaces:
DataView<T>, ListDataView<T,AbstractListDataView<T>>, Serializable
public class GridListDataView<T> extends AbstractListDataView<T>Data view implementation for Grid with in-memory list data. Provides information on the data and allows operations on it.
Since:
See Also:
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Field Summary
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Fields inherited from class com.vaadin.flow.data.provider.AbstractDataView
component, dataProviderSupplier, NULL_IDENTIFIER_ERROR_MESSAGE
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Constructor Summary
Constructors Constructor and Description GridListDataView(DataCommunicator<T> dataCommunicator, Grid<T> grid, SerializableBiConsumer<SerializablePredicate<T>,SerializableComparator<T>> filterOrSortingChangedCallback)Creates a new instance of Grid in-memory data view and verifies the passed data provider is compatible with this data view implementation.
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Method Summary
All Methods Modifier and Type Method and Description intgetItemCount()Get the full item count with filters if any set.
Stream<T>getItems()Get the full data available to the component.
voidsetIdentifierProvider(IdentifierProvider<T> identifierProvider)Sets an identifier provider, which returns an identifier for the given item.
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Methods inherited from class com.vaadin.flow.data.provider.AbstractListDataView
addFilter, addItem, addItemAfter, addItemBefore, addItems, addItemsAfter, addItemsBefore, addSortComparator, addSortOrder, contains, getDataProvider, getItem, getNextItem, getPreviousItem, getSupportedDataProviderType, removeFilters, removeItem, removeItems, removeSorting, setFilter, setSortComparator, setSortOrder, validateItemIndex
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Methods inherited from class com.vaadin.flow.data.provider.AbstractDataView
addItemCountChangeListener, equals, getIdentifierProvider, refreshAll, refreshItem, verifyDataProviderType
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface com.vaadin.flow.data.provider.DataView
addItemCountChangeListener, refreshAll, refreshItem
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Constructor Detail
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GridListDataView
public GridListDataView(DataCommunicator<T> dataCommunicator, Grid<T> grid, SerializableBiConsumer<SerializablePredicate<T>,SerializableComparator<T>> filterOrSortingChangedCallback)Creates a new instance of Grid in-memory data view and verifies the passed data provider is compatible with this data view implementation.
Parameters:
dataCommunicator- the data communicator of the Grid, notnullgrid- the Grid component, notnullfilterOrSortingChangedCallback- callback, which is being invoked when the Grid's filtering or sorting changes, notnull
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Method Detail
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getItems
public Stream<T> getItems()Description copied from interface:
DataViewGet the full data available to the component. Data is filtered and sorted the same way as in the component.
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getItemCount
public int getItemCount()Description copied from interface:
ListDataViewGet the full item count with filters if any set. As the item count might change at any point, it is recommended to add a listener with the
DataView.addItemCountChangeListener(ComponentEventListener)method instead to get notified when the item count has changed.Specified by:
getItemCountin interfaceListDataView<T,AbstractListDataView<T>>Overrides:
getItemCountin classAbstractListDataView<T>Returns:
filtered item count
See Also:
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setIdentifierProvider
public void setIdentifierProvider(IdentifierProvider<T> identifierProvider)Description copied from interface:
DataViewSets 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:
setIdentifierProviderin interfaceDataView<T>Overrides:
setIdentifierProviderin classAbstractDataView<T>Parameters:
identifierProvider- function that returns the non-null identifier for a given item
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