net.sf.mpxj.common

Class ObjectSequence

java.lang.Object

net.sf.mpxj.common.ObjectSequence

public final class ObjectSequence
extends Object

Simple sequence generation class.

Constructor Summary

Constructors

Constructor and Description
ObjectSequence(int id) Constructor.

Method Summary

Modifier and Type	Method and Description
Integer	getNext() Retrieve the next value from the sequence.
void	sync(Integer id) Sync the sequence with a value known to be in use.
Integer	syncOrGetNext(Integer id) If the id is not null, sync the sequence with it.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ObjectSequence

public ObjectSequence(int id)

Constructor.

Parameters:

id - initial value

Method Detail

sync

public void sync(Integer id)

Sync the sequence with a value known to be in use. If necessary, update the sequence to follow on from this value.

Parameters:

id - value in use

getNext

public Integer getNext()

Retrieve the next value from the sequence.

Returns:

next value

syncOrGetNext

public Integer syncOrGetNext(Integer id)

If the id is not null, sync the sequence with it. If the id is null, generate a new id.

Parameters:

id - id value

Returns:

id value