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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.task;

import java.util.Date;

import org.activiti.engine.TaskService;
import org.activiti.engine.api.internal.Internal;

/**
 * Any type of content that is be associated with a task or with a process instance.
 *
 * @deprecated this interface and its implementations are going to be removed in future iterations
 * Atttachments doesn't belong to the Process/Task Runtime
 */
@Deprecated
@Internal
public interface Attachment {

  /** unique id for this attachment */
  String getId();

  /** free user defined short (max 255 chars) name for this attachment */
  String getName();

  /** free user defined short (max 255 chars) name for this attachment */
  void setName(String name);

  /**
   * long (max 255 chars) explanation what this attachment is about in context of the task and/or process instance it's linked to.
   */
  String getDescription();

  /**
   * long (max 255 chars) explanation what this attachment is about in context of the task and/or process instance it's linked to.
   */
  void setDescription(String description);

  /**
   * indication of the type of content that this attachment refers to. Can be mime type or any other indication.
   */
  String getType();

  /** reference to the task to which this attachment is associated. */
  String getTaskId();

  /**
   * reference to the process instance to which this attachment is associated.
   */
  String getProcessInstanceId();

  /**
   * the remote URL in case this is remote content. If the attachment content was {@link TaskService#createAttachment(String, String, String, String, String, java.io.InputStream) uploaded with an
   * input stream}, then this method returns null and the content can be fetched with {@link TaskService#getAttachmentContent(String)}.
   */
  String getUrl();

  /** reference to the user who created this attachment. */
  String getUserId();

  /** timestamp when this attachment was created */
  Date getTime();

  /** timestamp when this attachment was created */
  void setTime(Date time);
  
  /** the id of the byte array entity storing the content */
  String getContentId();

}