Field Detail

• NULL

  public static final VersionValue NULL

  Assume the transient instance is newly instantiated if the version is null, otherwise assume it is a detached instance.

• UNDEFINED

  public static final VersionValue UNDEFINED

  Assume the transient instance is newly instantiated if the version is null, otherwise defer to the identifier unsaved-value.

• NEGATIVE

  public static final VersionValue NEGATIVE

  Assume the transient instance is newly instantiated if the version is negative, otherwise assume it is a detached instance.

Constructor Detail

• VersionValue

  protected VersionValue()

• VersionValue

  public VersionValue(Object value)

  Assume the transient instance is newly instantiated if its version is null or equal to value

  Parameters:

  value - value to compare to

Method Detail

• isUnsaved

  public Boolean isUnsaved(Object version)
                    throws MappingException

  Does the given version belong to a new instance?

  Parameters:

  version - version to check

  Returns:

  true is unsaved, false is saved, null is undefined

  Throws:

  MappingException

• getDefaultValue

  public Object getDefaultValue(Object currentValue)

• toString

  public String toString()

  Overrides:

  toString in class Object