org.jboss.varia.autonumber
Class AutoNumberFactory

java.lang.Object
  org.jboss.varia.autonumber.AutoNumberFactory

public class AutoNumberFactory

extends java.lang.Object

AutoNumberFactory can persistently auto number items.

AutoNumberFactory

public AutoNumberFactory()

getNextInteger

public static java.lang.Integer getNextInteger(java.lang.String collectionName)
                                        throws java.lang.ArrayIndexOutOfBoundsException

Gets the next key for the given collection. Note 1: you must deploy EJB AutoNumber Note 2: the keys are persistent in your database, independent of the actual table Note 3: you can only add instances to the collection which have a key generated by this method, otherwise the keys are not guaranteed to be unique Note 4: key values are >= 0

Parameters:

collectionName - the name of the collection for which you want an autonumber

Throws:

java.lang.ArrayIndexOutOfBoundsException - if no more numbers are available

resetAutoNumber

public static void resetAutoNumber(java.lang.String collectionName)

Resets the given autonumber to zero. Use with extreme care!

setAutoNumber

public static void setAutoNumber(java.lang.String collectionName,
                                 java.lang.Integer value)

Sets the given autonumber to the given value so that it starts counting at the given value. Use with extreme care!