com.vaadin.ui

Class Grid.AbstractGridExtension

java.lang.Object

com.vaadin.server.AbstractClientConnector

com.vaadin.server.AbstractExtension

com.vaadin.ui.Grid.AbstractGridExtension

All Implemented Interfaces:

MethodEventSource, ClientConnector, Extension, Connector, Serializable

Direct Known Subclasses:

Grid.AbstractRenderer, Grid.AbstractSelectionModel, Grid.DetailComponentManager

Enclosing class:

Grid

public abstract static class Grid.AbstractGridExtension
extends AbstractExtension

An abstract base class for server-side Grid extensions.

Note: If the extension is an instance of DataGenerator it will automatically register itself to RpcDataProviderExtension of extended Grid. On remove this registration is automatically removed.

Since:

7.5

See Also:

Serialized Form

Nested Class Summary

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

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

Constructor Summary

Constructors

Constructor and Description
AbstractGridExtension() Constructs a new Grid extension.
AbstractGridExtension(Grid grid) Constructs a new Grid extension and extends given Grid.

Method Summary

Modifier and Type	Method and Description
protected void	addComponentToGrid(Component c) Informs the parent Grid that this Extension wants to add a child component to it.
protected void	extend(AbstractClientConnector target) Add this extension to the target connector.
protected Grid.Column	getColumn(String columnId) Gets the column for a column id.
protected Object	getItemId(String rowKey) Gets the item id for a row key.
protected Grid	getParentGrid() Gets the parent Grid of the renderer.
protected void	refreshRow(Object itemId) Resends the row data for given item id to the client.
void	remove() Remove this extension from its target.
protected void	removeComponentFromGrid(Component c) Informs the parent Grid that this Extension wants to remove a child component from it.

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, getState, getState, 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.server.ClientConnector

addAttachListener, addDetachListener, attach, beforeClientResponse, detach, encodeState, getErrorHandler, getExtensions, 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

AbstractGridExtension

public AbstractGridExtension()

Constructs a new Grid extension.

AbstractGridExtension

public AbstractGridExtension(Grid grid)

Constructs a new Grid extension and extends given Grid.

Parameters:

grid - a grid instance

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 AbstractExtension

Parameters:

target - the connector to attach this extension to

remove

public void remove()

Description copied from interface: Extension

Remove this extension from its target. After an extension has been removed, it cannot be attached again.

Specified by:

remove in interface Extension

Overrides:

remove in class AbstractExtension

getItemId

protected Object getItemId(String rowKey)

Gets the item id for a row key.

A key is used to identify a particular row on both a server and a client. This method can be used to get the item id for the row key that the client has sent.

Parameters:

rowKey - the row key for which to retrieve an item id

Returns:

the item id corresponding to key

getColumn

protected Grid.Column getColumn(String columnId)

Gets the column for a column id.

An id is used to identify a particular column on both a server and a client. This method can be used to get the column for the column id that the client has sent.

Parameters:

columnId - the column id for which to retrieve a column

Returns:

the column corresponding to columnId

getParentGrid

protected Grid getParentGrid()

Gets the parent Grid of the renderer.

Returns:

parent grid

Throws:

IllegalStateException - if parent is not Grid

refreshRow

protected void refreshRow(Object itemId)

Resends the row data for given item id to the client.

Parameters:

itemId - row to refresh

Since:

7.6

addComponentToGrid

protected void addComponentToGrid(Component c)

Informs the parent Grid that this Extension wants to add a child component to it.

Parameters:

c - component

Since:

7.6

removeComponentFromGrid

protected void removeComponentFromGrid(Component c)

Informs the parent Grid that this Extension wants to remove a child component from it.

Parameters:

c - component

Since:

7.6