com.vaadin.ui

Class Grid.SingleSelectionModel

java.lang.Object

com.vaadin.server.AbstractClientConnector

com.vaadin.server.AbstractExtension

com.vaadin.ui.Grid.AbstractGridExtension

com.vaadin.ui.Grid.AbstractSelectionModel

com.vaadin.ui.Grid.SingleSelectionModel

All Implemented Interfaces:

MethodEventSource, ClientConnector, DataGenerator, Extension, Connector, Grid.SelectionModel, Grid.SelectionModel.HasUserSelectionAllowed, Grid.SelectionModel.Single, Serializable

Enclosing class:

Grid

public static class Grid.SingleSelectionModel
extends Grid.AbstractSelectionModel
implements Grid.SelectionModel.Single, Grid.SelectionModel.HasUserSelectionAllowed

A default implementation of a Grid.SelectionModel.Single

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface com.vaadin.ui.Grid.SelectionModel

Grid.SelectionModel.HasUserSelectionAllowed, Grid.SelectionModel.Multi, Grid.SelectionModel.None, Grid.SelectionModel.Single

Nested classes/interfaces inherited from interface com.vaadin.server.ClientConnector

ClientConnector.AttachEvent, ClientConnector.AttachListener, ClientConnector.ConnectorErrorEvent, ClientConnector.DetachEvent, ClientConnector.DetachListener

Field Summary

Fields inherited from class com.vaadin.ui.Grid.AbstractSelectionModel

selection

Constructor Summary

Constructors

Constructor and Description
SingleSelectionModel()

Method Summary

Modifier and Type	Method and Description
protected void	extend(AbstractClientConnector target) Add this extension to the target connector.
Object	getSelectedRow() Gets the item id of the currently selected item.
protected SingleSelectionModelState	getState() Returns the shared state for this connector.
protected SingleSelectionModelState	getState(boolean markAsDirty) Returns the shared state for this connector.
boolean	isDeselectAllowed() Sets whether it's allowed to deselect the selected row through the UI.
boolean	isUserSelectionAllowed() Checks if the user is allowed to change the selection.
void	reset() Resets the selection state.
boolean	select(Object itemId) Marks an item as selected.
protected boolean	select(Object itemId, boolean refresh)
void	setDeselectAllowed(boolean deselectAllowed) Sets whether it's allowed to deselect the selected row through the UI.
void	setUserSelectionAllowed(boolean userSelectionAllowed) Sets whether the user is allowed to change the selection.

Methods inherited from class com.vaadin.ui.Grid.AbstractSelectionModel

checkItemIdExists, checkItemIdsExist, destroyData, fireSelectionEvent, generateData, getItemId, getSelectedRows, isSelected, setGrid

Methods inherited from class com.vaadin.ui.Grid.AbstractGridExtension

addComponentToGrid, getColumn, getParentGrid, refreshRow, remove, removeComponentFromGrid

Methods inherited from class com.vaadin.server.AbstractExtension

getParent, getSupportedParentType, setParent

Methods inherited from class com.vaadin.server.AbstractClientConnector

addAttachListener, addDetachListener, addExtension, addListener, addListener, addListener, addMethodInvocationToQueue, attach, beforeClientResponse, createState, detach, encodeState, equals, fireEvent, getAllChildrenIterable, getConnectorId, getErrorHandler, getExtensions, getListeners, getResource, getRpcManager, getRpcProxy, getSession, getStateType, getUI, handleConnectorRequest, hashCode, hasListeners, isAttached, isConnectorEnabled, isThis, markAsDirty, markAsDirtyRecursive, registerRpc, registerRpc, removeAttachListener, removeDetachListener, removeExtension, removeListener, removeListener, removeListener, removeListener, requestRepaint, requestRepaintAll, retrievePendingRpcCalls, setErrorHandler, setResource

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.vaadin.ui.Grid.SelectionModel

getSelectedRows, isSelected, setGrid

Methods inherited from interface com.vaadin.server.Extension

remove, setParent

Methods inherited from interface com.vaadin.server.ClientConnector

addAttachListener, addDetachListener, attach, beforeClientResponse, detach, encodeState, getErrorHandler, getExtensions, getParent, getRpcManager, getStateType, getUI, handleConnectorRequest, isAttached, isConnectorEnabled, markAsDirty, markAsDirtyRecursive, removeAttachListener, removeDetachListener, removeExtension, requestRepaint, requestRepaintAll, retrievePendingRpcCalls, setErrorHandler

Methods inherited from interface com.vaadin.shared.Connector

getConnectorId

Constructor Detail

SingleSelectionModel

public SingleSelectionModel()

Method Detail

extend

protected void extend(AbstractClientConnector target)

Description copied from class: AbstractExtension

Add this extension to the target connector. This method is protected to allow subclasses to require a more specific type of target.

Overrides:

extend in class Grid.AbstractGridExtension

Parameters:

target - the connector to attach this extension to

select

public boolean select(Object itemId)

Description copied from interface: Grid.SelectionModel.Single

Marks an item as selected.

Specified by:

select in interface Grid.SelectionModel.Single

Parameters:

itemId - the itemId to mark as selected; null for deselect

Returns:

true if the selection state changed. false if the itemId already was selected

select

protected boolean select(Object itemId,
                         boolean refresh)

getSelectedRow

public Object getSelectedRow()

Description copied from interface: Grid.SelectionModel.Single

Gets the item id of the currently selected item.

Specified by:

getSelectedRow in interface Grid.SelectionModel.Single

Returns:

the item id of the currently selected item, or null if nothing is selected

reset

public void reset()

Resets the selection state.

If an item is selected, it will become deselected.

Specified by:

reset in interface Grid.SelectionModel

setDeselectAllowed

public void setDeselectAllowed(boolean deselectAllowed)

Description copied from interface: Grid.SelectionModel.Single

Sets whether it's allowed to deselect the selected row through the UI. Deselection is allowed by default.

Specified by:

setDeselectAllowed in interface Grid.SelectionModel.Single

Parameters:

deselectAllowed - true if the selected row can be deselected without selecting another row instead; otherwise false.

isDeselectAllowed

public boolean isDeselectAllowed()

Description copied from interface: Grid.SelectionModel.Single

Sets whether it's allowed to deselect the selected row through the UI.

Specified by:

isDeselectAllowed in interface Grid.SelectionModel.Single

Returns:

true if deselection is allowed; otherwise false

getState

protected SingleSelectionModelState getState()

Description copied from class: AbstractClientConnector

Returns the shared state for this connector. The shared state object is shared between the server connector and the client connector. Changes are only communicated from the server to the client and not in the other direction.

As a side effect, marks the connector dirty so any changes done to the state will be sent to the client. Use getState(false) to avoid marking the connector as dirty.

Overrides:

getState in class AbstractClientConnector

Returns:

The shared state for this connector. Never null.

getState

protected SingleSelectionModelState getState(boolean markAsDirty)

Description copied from class: AbstractClientConnector

Returns the shared state for this connector.

Overrides:

getState in class AbstractClientConnector

Parameters:

markAsDirty - true if the connector should automatically be marked dirty, false otherwise

Returns:

The shared state for this connector. Never null.

See Also:

AbstractClientConnector.getState()

isUserSelectionAllowed

public boolean isUserSelectionAllowed()

Description copied from interface: Grid.SelectionModel.HasUserSelectionAllowed

Checks if the user is allowed to change the selection.

Specified by:

isUserSelectionAllowed in interface Grid.SelectionModel.HasUserSelectionAllowed

Returns:

true if the user is allowed to change the selection, false otherwise

setUserSelectionAllowed

public void setUserSelectionAllowed(boolean userSelectionAllowed)

Description copied from interface: Grid.SelectionModel.HasUserSelectionAllowed

Sets whether the user is allowed to change the selection.

Specified by:

setUserSelectionAllowed in interface Grid.SelectionModel.HasUserSelectionAllowed

Parameters:

userSelectionAllowed - true if the user is allowed to change the selection, false otherwise