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/*
@VaadinApache2LicenseForJavaFiles@
*/
package com.vaadin.terminal.gwt.client;
import java.io.Serializable;
import java.util.List;
import com.google.gwt.event.shared.EventHandler;
import com.google.gwt.event.shared.GwtEvent;
import com.vaadin.terminal.gwt.client.ConnectorHierarchyChangeEvent.ConnectorHierarchyChangeHandler;
import com.vaadin.terminal.gwt.client.communication.AbstractServerConnectorEvent;
/**
* Event for containing data related to a change in the {@link ServerConnector}
* hierarchy. A {@link ConnectorHierarchyChangedEvent} is fired when an update
* from the server has been fully processed and all hierarchy updates have been
* completed.
*
* @author Vaadin Ltd
* @version @VERSION@
* @since 7.0.0
*
*/
public class ConnectorHierarchyChangeEvent extends
AbstractServerConnectorEvent<ConnectorHierarchyChangeHandler> {
/**
* Type of this event, used by the event bus.
*/
public static final Type<ConnectorHierarchyChangeHandler> TYPE = new Type<ConnectorHierarchyChangeHandler>();
List<ComponentConnector> oldChildren;
private ComponentContainerConnector parent;
public ConnectorHierarchyChangeEvent() {
}
/**
* Returns a collection of the old children for the connector. This was the
* state before the update was received from the server.
*
* @return A collection of old child connectors. Never returns null.
*/
public List<ComponentConnector> getOldChildren() {
return oldChildren;
}
/**
* Sets the collection of the old children for the connector.
*
* @param oldChildren
* The old child connectors. Must not be null.
*/
public void setOldChildren(List<ComponentConnector> oldChildren) {
this.oldChildren = oldChildren;
}
/**
* Returns the {@link ComponentContainerConnector} for which this event
* occurred.
*
* @return The {@link ComponentContainerConnector} whose child collection
* has changed. Never returns null.
*/
public ComponentContainerConnector getParent() {
return parent;
}
/**
* Sets the {@link ComponentContainerConnector} for which this event
* occurred.
*
* @param The
* {@link ComponentContainerConnector} whose child collection has
* changed.
*/
public void setParent(ComponentContainerConnector parent) {
this.parent = parent;
}
public interface ConnectorHierarchyChangeHandler extends Serializable,
EventHandler {
public void onConnectorHierarchyChange(
ConnectorHierarchyChangeEvent connectorHierarchyChangeEvent);
}
@Override
public void dispatch(ConnectorHierarchyChangeHandler handler) {
handler.onConnectorHierarchyChange(this);
}
@Override
public GwtEvent.Type<ConnectorHierarchyChangeHandler> getAssociatedType() {
return TYPE;
}
}
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