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/* 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.activiti.engine.delegate.event.impl;

import org.activiti.engine.ActivitiIllegalArgumentException;
import org.activiti.engine.delegate.event.ActivitiEvent;
import org.activiti.engine.delegate.event.ActivitiEventType;

/**
 * Base class for all {@link ActivitiEvent} implementations.
 * 

 */
public class ActivitiEventImpl implements ActivitiEvent {

  protected ActivitiEventType type;
  protected String executionId;
  protected String processInstanceId;
  protected String processDefinitionId;

  /**
   * Creates a new event implementation, not part of an execution context.
   */
  public ActivitiEventImpl(ActivitiEventType type) {
    this(type, null, null, null);
  }

  /**
   * Creates a new event implementation, part of an execution context.
   */
  public ActivitiEventImpl(ActivitiEventType type, String executionId, String processInstanceId, String processDefinitionId) {
    if (type == null) {
      throw new ActivitiIllegalArgumentException("type is null");
    }
    this.type = type;
    this.executionId = executionId;
    this.processInstanceId = processInstanceId;
    this.processDefinitionId = processDefinitionId;
  }

  public ActivitiEventType getType() {
    return type;
  }

  public void setType(ActivitiEventType type) {
    this.type = type;
  }

  public String getExecutionId() {
    return executionId;
  }

  public void setExecutionId(String executionId) {
    this.executionId = executionId;
  }

  public String getProcessDefinitionId() {
    return processDefinitionId;
  }

  public void setProcessDefinitionId(String processDefinitionId) {
    this.processDefinitionId = processDefinitionId;
  }

  public String getProcessInstanceId() {
    return processInstanceId;
  }

  public void setProcessInstanceId(String processInstanceId) {
    this.processInstanceId = processInstanceId;
  }

  @Override
  public String toString() {
    return getClass() + " - " + type;
  }
  
}