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Revision 1121

Added by Jing Tao over 22 years ago

Add a new attribute named checkOutSerialNumber, which to make sure when DBConnection would not be check in mutiple times.

View differences:

src/edu/ucsb/nceas/metacat/DBConnection.java
45 45 
  private long createTime;
46 46 
  private long connectionTime; //how long it use for connections,
47 47 
                               //it is accumulated
48 
  private long checkOutTime;
48 
  private long checkOutTime; //the time when check it out
49 49 
  private int usageCount;// how many time the connection was used
50 
  private int checkOutSerialNumber; // a number to identify same check out.
51 
                                     //for a connection
50 52 
  private SQLWarning warningMessage;
51 53 
  private String checkOutMethodName;
52 54
......
70 72 
    connectionTime = 0;
71 73 
    checkOutTime = 0;
72 74 
    usageCount= 0;
75 
    checkOutSerialNumber=0;
73 76 
    warningMessage = null;
74 77 
    checkOutMethodName = null;
75 78
......
165 168 
  }
166 169
167 170 
  /**
168 
   * get the how long db connetion usedfrom the object
171 
   * get the how long db connetion used for the object
169 172 
   */
170 173 
  public long getConnectionTime()
171 174 
  {
......
184 187 
    this.connectionTime = this.connectionTime + myConnectionTime;
185 188 
  }
186 189
187 
    /**
188 
   * get the how long db connetion usedfrom the object
190 
  /**
191 
   * get the when a db connetion was checked out
189 192 
   */
190 193 
  public long getCheckOutTime()
191 194 
  {
......
231 234 
    this.usageCount = this.usageCount + myUsageCount;
232 235 
  }
233 236
237 
  /**
238 
   * get the check out serial number
239 
   */
240 
  public int getCheckOutSerialNumber()
241 
  {
242 
    return checkOutSerialNumber;
243 
  }
234 244
245
235 246 
  /**
247 
   * Set check out serial number to this object
248
249 
   * @param myCheckOutSerialNumber, the check out serial number which will
250 
   * assign to this object
251 
   */
252 
  public void setCheckOutSerialNumber(int myCheckOutSerialNumber)
253 
  {
254 
    this.checkOutSerialNumber = myCheckOutSerialNumber;
255 
  }
256
257 
  /**
258 
   * Increase a usage number to this object
259 
   * @param myUsageCount, number of usage which will be add to this object
260 
   */
261 
  public void increaseCheckOutSerialNumber(int myCheckOutSerialNumber)
262 
  {
263 
    this.checkOutSerialNumber=this.checkOutSerialNumber+myCheckOutSerialNumber;
264 
  }
265
266
267 
  /**
236 268 
   * get the db connetion waring message from the object
237 269 
   */
238 270 
  public SQLWarning getWarningMessage() throws SQLException
239 271 
  {
272 
    //should increase 1 UsageCount
273 
    increaseUsageCount(1);
240 274 
    return conn.getWarnings();
241 275 
  }
242 276

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