ContactClientModule.java

package org.realityforge.gwt.sample.contacts.client.gin;

import com.google.gwt.event.shared.EventBus;
import com.google.gwt.event.shared.SimpleEventBus;
import com.google.gwt.inject.client.AbstractGinModule;
import com.google.gwt.place.shared.PlaceController;
import com.google.gwt.place.shared.PlaceHistoryHandler;
import com.google.gwt.place.shared.PlaceHistoryMapper;
import org.realityforge.gwt.sample.contacts.client.activity.GlobalAsyncCallback;
import org.realityforge.gwt.sample.contacts.client.place.ApplicationPlaceHistoryMapper;
import org.realityforge.gwt.sample.contacts.client.place.ListContactsPlace;
import org.realityforge.gwt.sample.contacts.client.view.EditContactView;
import org.realityforge.gwt.sample.contacts.client.view.ListContactsView;
import org.realityforge.gwt.sample.contacts.client.view.ShowContactView;
import org.realityforge.gwt.sample.contacts.client.view.ui.EditContactUI;
import org.realityforge.gwt.sample.contacts.client.view.ui.ListContactsUI;
import org.realityforge.gwt.sample.contacts.client.view.ui.ShowContactUI;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.inject.Provides;
import com.google.inject.name.Names;
import javax.inject.Singleton;

public class ContactClientModule
  extends AbstractGinModule
{
  protected void configure()
  {
    bind( EventBus.class ).to( SimpleEventBus.class ).in( Singleton.class );
    bind( PlaceHistoryMapper.class ).to( ApplicationPlaceHistoryMapper.class ).in( Singleton.class );
    bindNamedService( "GLOBAL", AsyncCallback.class, GlobalAsyncCallback.class );

    bind( ListContactsView.class ).to( ListContactsUI.class ).in( Singleton.class );
    bind( EditContactView.class ).to( EditContactUI.class ).in( Singleton.class );
    bind( ShowContactView.class ).to( ShowContactUI.class ).in( Singleton.class );
  }

  // None of the components below are Gin enabled so lets create factory methods for them

  @Provides
  @Singleton
  public PlaceHistoryHandler getHistoryHandler( final PlaceController placeController,
                                                final PlaceHistoryMapper historyMapper,
                                                final EventBus eventBus )
  {
    final PlaceHistoryHandler historyHandler = new PlaceHistoryHandler( historyMapper );
    historyHandler.register( placeController, (com.google.web.bindery.event.shared.EventBus) eventBus, new ListContactsPlace() );
    return historyHandler;
  }

  @Provides
  @Singleton
  public PlaceController getPlaceController( final EventBus eventBus )
  {
    return new PlaceController( (com.google.web.bindery.event.shared.EventBus) eventBus );
  }

  private <T> void bindNamedService( final String name,
                                     final Class<T> service,
                                     final Class<? extends T> implementation )
  {
    bind( service ).annotatedWith( Names.named( name ) ).to( implementation ).asEagerSingleton();
  }
}