Package com.vaadin.client.connectors.grid

Class MultiSelectionModelConnector

java.lang.Object

com.vaadin.client.ui.AbstractConnector

com.vaadin.client.extensions.AbstractExtensionConnector

com.vaadin.client.connectors.grid.AbstractSelectionModelConnector

com.vaadin.client.connectors.grid.MultiSelectionModelConnector

All Implemented Interfaces:

com.google.gwt.event.shared.EventHandler, StateChangeEvent.StateChangeHandler, ServerConnector, Connector, Serializable

Direct Known Subclasses:

TreeMultiSelectionModelConnector

public class MultiSelectionModelConnector
extends AbstractSelectionModelConnector

Connector for server side multiselection model implementation.

This selection model displays a selection column Grid.SelectionColumn as the first column of the grid.

Implementation detail: The Grid selection is updated immediately on client side, without waiting for the server response.

Since:

8.0

Author:

Vaadin Ltd

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected class	MultiSelectionModelConnector.MultiSelectionModel	Client side multiselection model implementation.

Constructor Summary

Constructors

Constructor	Description
MultiSelectionModelConnector()

Method Summary

Modifier and Type	Method	Description
protected MultiSelectionModelConnector.MultiSelectionModel	createSelectionModel()	Creates an instance of MultiSelectionModel.
MultiSelectionModelState	getState()	Returns the shared state object for this connector.
protected void	initSelectionModel()	Initializes the selection model and sets it to the grid.
protected boolean	isAllSelected()	Returns whether all items are selected or not.
protected boolean	isSelected(elemental.json.JsonObject item)	Returns whether the given item selected in grid or not.
protected void	onSelectAllEvent(SelectAllEvent<elemental.json.JsonObject> event)	Handler for selecting / deselecting all grid rows.
void	onUnregister()	Event called when connector has been unregistered.
protected void	updateAllRowsSelected(boolean selected)	Update selection for all grid rows.
protected void	updateRowSelected(DataSource.RowHandle<elemental.json.JsonObject> row, boolean selected)	Marks the given row to be selected or deselected.
protected void	updateSelectAllCheckBox()	Called whenever there has been a state update for select all checkbox visibility or all have been selected or deselected.

Methods inherited from class com.vaadin.client.connectors.grid.AbstractSelectionModelConnector

extend, getGrid, getParent, getSpaceSelectionHandler

Methods inherited from class com.vaadin.client.extensions.AbstractExtensionConnector

setParent

Methods inherited from class com.vaadin.client.ui.AbstractConnector

addStateChangeHandler, addStateChangeHandler, createState, doInit, ensureHandlerManager, fireEvent, forceStateChange, getChildren, getConnection, getConnectorId, getResourceUrl, getRpcImplementations, getRpcProxy, getStateType, getTag, hasEventListener, init, isEnabled, onStateChanged, registerRpc, removeStateChangeHandler, removeStateChangeHandler, setChildren, setTag, unregisterRpc, updateEnabledState

Methods inherited from class java.lang.Object

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

Constructor Detail

MultiSelectionModelConnector

public MultiSelectionModelConnector()

Method Detail

initSelectionModel

protected void initSelectionModel()

Description copied from class: AbstractSelectionModelConnector

Initializes the selection model and sets it to the grid.

This method is only invoked once by AbstractSelectionModelConnector.extend(ServerConnector) in AbstractSelectionModelConnector when the grid is available via AbstractSelectionModelConnector.getGrid() and the selection model should be taken into use.

Specified by:

initSelectionModel in class AbstractSelectionModelConnector

createSelectionModel

protected MultiSelectionModelConnector.MultiSelectionModel createSelectionModel()

Creates an instance of MultiSelectionModel. Method provided overriding features of the selection model without copying all logic.

Returns:

selection model instance, not null

Since:

8.1

onUnregister

public void onUnregister()

Description copied from interface: ServerConnector

Event called when connector has been unregistered.

Specified by:

onUnregister in interface ServerConnector

Overrides:

onUnregister in class AbstractSelectionModelConnector

getState

public MultiSelectionModelState getState()

Description copied from class: AbstractConnector

Returns the shared state object for this connector. Override this method to define the shared state type for your connector.

Specified by:

getState in interface ServerConnector

Overrides:

getState in class AbstractSelectionModelConnector

Returns:

the current shared state (never null)

updateSelectAllCheckBox

protected void updateSelectAllCheckBox()

Called whenever there has been a state update for select all checkbox visibility or all have been selected or deselected.

isAllSelected

protected boolean isAllSelected()

Returns whether all items are selected or not.

Returns:

true if all items are selected, false if not

onSelectAllEvent

protected void onSelectAllEvent(SelectAllEvent<elemental.json.JsonObject> event)

Handler for selecting / deselecting all grid rows.

Parameters:

event - the select all event from grid

updateAllRowsSelected

protected void updateAllRowsSelected(boolean selected)

Update selection for all grid rows.

Parameters:

selected - true for marking all rows selected, false for not selected

isSelected

protected boolean isSelected(elemental.json.JsonObject item)

Description copied from class: AbstractSelectionModelConnector

Returns whether the given item selected in grid or not.

Overrides:

isSelected in class AbstractSelectionModelConnector

Parameters:

item - the item to check

Returns:

true if selected false if not

updateRowSelected

protected void updateRowSelected(DataSource.RowHandle<elemental.json.JsonObject> row,
                                 boolean selected)

Marks the given row to be selected or deselected. Returns true if the value actually changed.

Note: If selection model is in batch select state, the row will be pinned on select.

Parameters:

row - row handle

selected - true if row should be selected; false if not