Enum Constant Detail

• IDLE

  public static final PooledObjectState IDLE

  In the queue, not in use.

• ALLOCATED

  public static final PooledObjectState ALLOCATED

  In use.

• EVICTION

  public static final PooledObjectState EVICTION

  In the queue, currently being tested for possible eviction.

• EVICTION_RETURN_TO_HEAD

  public static final PooledObjectState EVICTION_RETURN_TO_HEAD

  Not in the queue, currently being tested for possible eviction. An attempt to borrow the object was made while being tested which removed it from the queue. It should be returned to the head of the queue once eviction testing completes. TODO: Consider allocating object and ignoring the result of the eviction test.

• VALIDATION

  public static final PooledObjectState VALIDATION

  In the queue, currently being validated.

• VALIDATION_PREALLOCATED

  public static final PooledObjectState VALIDATION_PREALLOCATED

  Not in queue, currently being validated. The object was borrowed while being validated and since testOnBorrow was configured, it was removed from the queue and pre-allocated. It should be allocated once validation completes.

• VALIDATION_RETURN_TO_HEAD

  public static final PooledObjectState VALIDATION_RETURN_TO_HEAD

  Not in queue, currently being validated. An attempt to borrow the object was made while previously being tested for eviction which removed it from the queue. It should be returned to the head of the queue once validation completes.

• INVALID

  public static final PooledObjectState INVALID

  Failed maintenance (e.g. eviction test or validation) and will be / has been destroyed

• ABANDONED

  public static final PooledObjectState ABANDONED

  Deemed abandoned, to be invalidated.

• RETURNING

  public static final PooledObjectState RETURNING

  Returning to the pool.

Method Detail

• values

  public static PooledObjectState[] values()

  Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

  for (PooledObjectState c : PooledObjectState.values())
      System.out.println(c);
  

  Returns:

  an array containing the constants of this enum type, in the order they are declared

• valueOf

  public static PooledObjectState valueOf(String name)

  Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

  Parameters:

  name - the name of the enum constant to be returned.

  Returns:

  the enum constant with the specified name

  Throws:

  IllegalArgumentException - if this enum type has no constant with the specified name

  NullPointerException - if the argument is null