com.vaadin.client.connectors.data

Class DataCommunicatorConnector

java.lang.Object

com.vaadin.client.ui.AbstractConnector

com.vaadin.client.extensions.AbstractExtensionConnector

com.vaadin.client.connectors.data.DataCommunicatorConnector

All Implemented Interfaces:

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

Direct Known Subclasses:

HierarchicalDataCommunicatorConnector

public class DataCommunicatorConnector
extends AbstractExtensionConnector

A connector for DataCommunicator class.

Since:

8.0

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	DataCommunicatorConnector.VaadinDataSource Client-side DataSource implementation to be used with DataCommunicator.

Constructor Summary

Constructors

Constructor and Description
DataCommunicatorConnector()

Method Summary

Modifier and Type	Method and Description
protected void	extend(ServerConnector target) Called when the extension is attached to its parent.
DataCommunicatorState	getState() Returns the shared state object for this connector.
protected void	onRowDataUpdate(JsonObject newRowData, JsonObject oldRowData) Called row updates from server side.

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, getParent, getResourceUrl, getRpcImplementations, getRpcProxy, getStateType, getTag, hasEventListener, init, isEnabled, onStateChanged, onUnregister, 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

DataCommunicatorConnector

public DataCommunicatorConnector()

Method Detail

extend

protected void extend(ServerConnector target)

Description copied from class: AbstractExtensionConnector

Called when the extension is attached to its parent. This method is only called once as an extension cannot be moved from one parent to another.

Specified by:

extend in class AbstractExtensionConnector

Parameters:

target - The connector this extension extends

onRowDataUpdate

protected void onRowDataUpdate(JsonObject newRowData,
                               JsonObject oldRowData)

Called row updates from server side.

This method exists for making it possible to copy data from the old object to the new one, if e.g. some data is not available in the server side when doing updates and would be missed otherwise.

Parameters:

newRowData - the new row data

oldRowData - the previous row data

Since:

8.1

getState

public DataCommunicatorState 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 AbstractConnector

Returns:

the current shared state (never null)