DataEvent.java

/*
 * Copyright 2014-2016 CyberVision, Inc.
 *
 * Licensed 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.kaaproject.kaa.server.admin.client.mvp.event.data;

import com.google.gwt.event.shared.GwtEvent;

public class DataEvent extends GwtEvent<DataEventHandler> {
  private static Type<DataEventHandler> TYPE;

  private final Class<?> clazz;
  private boolean refreshTree = false;

  public DataEvent(Class<?> clazz) {
    this.clazz = clazz;
  }

  public DataEvent(Class<?> clazz, boolean refreshTree) {
    this.clazz = clazz;
    this.refreshTree = refreshTree;
  }

  /**
   * Returns type.
   * @return type
   */
  public static Type<DataEventHandler> getType() {
    if (TYPE == null) {
      TYPE = new Type<>();
    }
    return TYPE;
  }

  public Class<?> getClazz() {
    return clazz;
  }

  public boolean refreshTree() {
    return refreshTree;
  }

  public boolean checkClass(Class<?> clazz) {
    return this.clazz.equals(clazz);
  }

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

  @Override
  protected void dispatch(DataEventHandler handler) {
    handler.onDataChanged(this);
  }

}