Field Detail

• iseq_

  private int iseq_

• prefix_

  private final java.lang.String prefix_

• comparator_

  private final java.util.Comparator comparator_

Constructor Detail

• ClientIdGenerator

  public ClientIdGenerator(java.lang.String prefix)

  Constructor.

  Parameters:

  prefix - prefix for all generated ids

Method Detail

• next

  public java.lang.String next()

  Returns the next unused id.

  Returns:

  next id

• hasUsed

  public boolean hasUsed(java.lang.String id)

  Indicates whether a given client ID has previously been dispensed by this object.

  Parameters:

  id - id to test

  Returns:

  true iff id has been returned by a previous call of next

• getIndex

  private java.lang.Integer getIndex(java.lang.String id)

  Returns an Integer giving the sequence index of the given id string. If id does not look like a string generated by this object, null is returned.

  Parameters:

  id - identifier to test

  Returns:

  object containing sequence index of id, or null

• getComparator

  public java.util.Comparator getComparator()

  Returns a comparator which will order the IDs generated by this object in generation sequence.

  Returns:

  id comparator