/*
    * Copyright 2005-2008 The Kuali Foundation
    * 
    * 
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
   * 
   * 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.kuali.rice.kew.notes;
  
  import java.io.InputStream;
  
  import javax.persistence.CascadeType;
  import javax.persistence.Column;
  import javax.persistence.Entity;
  import javax.persistence.FetchType;
  import javax.persistence.Id;
  import javax.persistence.JoinColumn;
  import javax.persistence.ManyToOne;
  import javax.persistence.NamedQueries;
  import javax.persistence.NamedQuery;
  import javax.persistence.PrePersist;
  import javax.persistence.Table;
  import javax.persistence.Transient;
  import javax.persistence.Version;
  
  import org.kuali.rice.core.jpa.annotations.Sequence;
  import org.kuali.rice.core.util.OrmUtils;
  import org.kuali.rice.kns.service.KNSServiceLocator;
  
  /**
   * An attachment which is attached to a {@link Note}.
   * 
   * @see Note
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  @Entity
  @Table(name="KREW_ATT_T")
  @Sequence(name="KREW_DOC_NTE_S",property="attachmentId")
  @NamedQueries({
  	@NamedQuery(name="Attachment.FindAttachmentById",query="select a from Attachment as a where a.attachmentId = :attachmentId")
  })
  public class Attachment {
  
  	@Id
  	@Column(name="ATTACHMENT_ID")
  	private Long attachmentId;
  	@Transient
  	private Long noteId;
  	@Column(name="FILE_NM")
  	private String fileName;
  	@Column(name="FILE_LOC")
  	private String fileLoc;
  	@Column(name="MIME_TYP")
  	private String mimeType;
  	@Version
  	@Column(name="VER_NBR")
  	private Integer lockVerNbr;
      @Transient
  	private InputStream attachedObject;
  	@ManyToOne(fetch=FetchType.EAGER)
  	@JoinColumn(name="NTE_ID")
  	private Note note;
  	
  	public Long getAttachmentId() {
  		return attachmentId;
  	}
  	public void setAttachmentId(Long attachmentId) {
  		this.attachmentId = attachmentId;
  	}
  	public String getFileLoc() {
  		return fileLoc;
  	}
  	public void setFileLoc(String fileLoc) {
  		this.fileLoc = fileLoc;
  	}
  	public String getFileName() {
  		return fileName;
  	}
  	public void setFileName(String fileName) {
  		this.fileName = fileName;
  	}
  	public Integer getLockVerNbr() {
  		return lockVerNbr;
  	}
  	public void setLockVerNbr(Integer lockVerNbr) {
  		this.lockVerNbr = lockVerNbr;
  	}
  	public String getMimeType() {
  		return mimeType;
 	}
 	public void setMimeType(String mimeType) {
 		this.mimeType = mimeType;
 	}
 	public Long getNoteId() {
 		//noteId field not mapped in JPA 
 		if (noteId == null && note != null){
 			return note.getNoteId();
 		}
 		return noteId;
 	}
 	public void setNoteId(Long noteId) {
 		this.noteId = noteId;
 	}
 	public Note getNote() {
 		return note;
 	}
 	public void setNote(Note note) {
 		this.note = note;
 	}
 	public InputStream getAttachedObject() {
 		return attachedObject;
 	}
 	public void setAttachedObject(InputStream attachedObject) {
 		this.attachedObject = attachedObject;
 	}
 	
 	@PrePersist
 	public void beforeInsert(){
 		OrmUtils.populateAutoIncValue(this, KNSServiceLocator.getEntityManagerFactory().createEntityManager());		
 	}
 
 }