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com.google.gwt.place.shared
Class PlaceHistoryHandler

java.lang.Object
  extended by com.google.gwt.place.shared.PlaceHistoryHandler

public class PlaceHistoryHandler
extends java.lang.Object

Monitors PlaceChangeEvents and History events and keep them in sync.

Nested Class Summary
static class PlaceHistoryHandler.DefaultHistorian
          Default implementation of PlaceHistoryHandler.DefaultHistorian, based on History.
static interface PlaceHistoryHandler.Historian
          Optional delegate in charge of History related events.
 
Constructor Summary
PlaceHistoryHandler(PlaceHistoryMapper mapper)
          Create a new PlaceHistoryHandler with a PlaceHistoryHandler.DefaultHistorian.
PlaceHistoryHandler(PlaceHistoryMapper mapper, PlaceHistoryHandler.Historian historian)
          Create a new PlaceHistoryHandler.
 
Method Summary
 void handleCurrentHistory()
          Handle the current history token.
(package private)  java.util.logging.Logger log()
          Visible for testing.
 HandlerRegistration register(PlaceController placeController, EventBus eventBus, Place defaultPlace)
          Deprecated. use register(PlaceController, EventBus, Place)
 HandlerRegistration register(PlaceController placeController, EventBus eventBus, Place defaultPlace)
          Initialize this place history handler.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

PlaceHistoryHandler

public PlaceHistoryHandler(PlaceHistoryMapper mapper)
Create a new PlaceHistoryHandler with a PlaceHistoryHandler.DefaultHistorian. The DefaultHistorian is created via a call to GWT.create(), so an alternative default implementation can be provided through <replace-with> rules in a gwt.xml file.

Parameters:
mapper - a PlaceHistoryMapper instance

PlaceHistoryHandler

public PlaceHistoryHandler(PlaceHistoryMapper mapper,
                           PlaceHistoryHandler.Historian historian)
Create a new PlaceHistoryHandler.

Parameters:
mapper - a PlaceHistoryMapper instance
historian - a PlaceHistoryHandler.DefaultHistorian instance
Method Detail

handleCurrentHistory

public void handleCurrentHistory()
Handle the current history token. Typically called at application start, to ensure bookmark launches work.

register

@Deprecated
public HandlerRegistration register(PlaceController placeController,
                                               EventBus eventBus,
                                               Place defaultPlace)
Deprecated. use register(PlaceController, EventBus, Place)

Legacy method tied to the old location for EventBus.

register

public HandlerRegistration register(PlaceController placeController,
                                    EventBus eventBus,
                                    Place defaultPlace)
Initialize this place history handler.

Returns:
a registration object to de-register the handler

log

java.util.logging.Logger log()
Visible for testing.

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