com.vaadin.flow.component.checkbox.dataview.
Class CheckboxGroupDataView<T>
Type Parameters:
T
- the item type
All Implemented Interfaces:
DataView<T>
, Serializable
Implementation of generic data view for checkbox group.
Since:
See Also:
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Field Summary
Fields inherited from class com.vaadin.flow.data.provider.AbstractDataView
component, dataProviderSupplier, NULL_IDENTIFIER_ERROR_MESSAGE, NULL_ITEM_ERROR_MESSAGE
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Constructor Summary
ConstructorsConstructorDescriptionCheckboxGroupDataView
(SerializableSupplier<DataProvider<T, ?>> dataProviderSupplier, CheckboxGroup<T> checkboxGroup) Constructs a new DataView.
CheckboxGroupDataView
(SerializableSupplier<DataProvider<T, ?>> dataProviderSupplier, CheckboxGroup<T> checkboxGroup, SerializableConsumer<IdentifierProvider<T>> identifierChangedCallback) Constructs a new DataView.
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Method Summary
Modifier and TypeMethodDescriptiongetItem
(int index) Gets the item at the given index from the data available to the component.
protected Class<?>
Returns supported
DataProvider
type for thisDataView
.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.AbstractDataView
addIdentifierProviderChangeListener, addItemCountChangeListener, equals, getIdentifierProvider, getItemIndex, getItemIndex, getItems, refreshAll, refreshItem, verifyDataProviderType, verifyDataProviderType
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Constructor Details
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CheckboxGroupDataView
public CheckboxGroupDataView(SerializableSupplier<DataProvider<T, ?>> dataProviderSupplier, CheckboxGroup<T> checkboxGroup) Constructs a new DataView.
Parameters:
dataProviderSupplier
- data provider suppliercheckboxGroup
- checkbox instance for this DataView -
CheckboxGroupDataView
public CheckboxGroupDataView(SerializableSupplier<DataProvider<T, ?>> dataProviderSupplier, CheckboxGroup<T> checkboxGroup, SerializableConsumer<IdentifierProvider<T>> identifierChangedCallback) Constructs a new DataView.
Parameters:
dataProviderSupplier
- data provider suppliercheckboxGroup
- checkbox instance for this DataViewidentifierChangedCallback
- callback method which should be called when identifierProvider is changed
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Method Details
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getItem
Description copied from interface:
DataView
Gets the item at the given index from the data available to the component. Data is filtered and sorted the same way as in the component.
Parameters:
index
- item index numberReturns:
item on index
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getSupportedDataProviderType
Description copied from class:
AbstractDataView
Returns supported
DataProvider
type for thisDataView
.Specified by:
getSupportedDataProviderType
in classAbstractDataView<T>
Returns:
supported data provider type
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setIdentifierProvider
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 interfaceDataView<T>
Overrides:
setIdentifierProvider
in classAbstractDataView<T>
Parameters:
identifierProvider
- function that returns the non-null identifier for a given item
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