WaveSelectionEvent.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.waveprotocol.wave.client.events;
import com.google.gwt.event.shared.GwtEvent;

import org.waveprotocol.wave.model.util.Preconditions;
import org.waveprotocol.wave.model.waveref.WaveRef;

public class WaveSelectionEvent extends GwtEvent<WaveSelectionEventHandler> {
  public static final GwtEvent.Type<WaveSelectionEventHandler> TYPE = new GwtEvent.Type<WaveSelectionEventHandler>();
  private final WaveRef waveRef;

  public WaveSelectionEvent(WaveRef waveRef) {
    this.waveRef = Preconditions.checkNotNull(waveRef,"null waveref");
  }

  @Override
  public Type<WaveSelectionEventHandler> getAssociatedType() {
    return TYPE;
  }

  @Override
  protected void dispatch(WaveSelectionEventHandler handler) {
    handler.onSelection(waveRef);
  }

}