/*
 * 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.apache.samoa.learners.clusterers;

import org.apache.samoa.core.ContentEvent;
import org.apache.samoa.instances.Instance;

import net.jcip.annotations.Immutable;

/**
 * The Class ClusteringContentEvent.
 */
@Immutable
final public class ClusteringContentEvent implements ContentEvent {

  private static final long serialVersionUID = -7746983521296618922L;
  private Instance instance;
  private boolean isLast = false;
  private String key;
  private boolean isSample;

  public ClusteringContentEvent() {
    // Necessary for kryo serializer
  }

  /**
   * Instantiates a new clustering event.
   * 
   * @param index
   *          the index
   * @param instance
   *          the instance
   */
  public ClusteringContentEvent(long index, Instance instance) {
    /*
     * if (instance != null) { this.instance = new
     * SerializableInstance(instance); }
     */
    this.instance = instance;
    this.setKey(Long.toString(index));
  }

  @Override
  public String getKey() {
    return this.key;
  }

  @Override
  public void setKey(String str) {
    this.key = str;
  }

  @Override
  public boolean isLastEvent() {
    return this.isLast;
  }

  public void setLast(boolean isLast) {
    this.isLast = isLast;
  }

  public Instance getInstance() {
    return this.instance;
  }

  public boolean isSample() {
    return isSample;
  }

  public void setSample(boolean b) {
    this.isSample = b;
  }
}