org.powertac.common
Class RandomSeed

java.lang.Object
  java.util.Random
      org.powertac.common.RandomSeed

All Implemented Interfaces:

Serializable

public class RandomSeed
extends Random

RandomSeed is used to store generated random seed in the database in order to be able to "replay" PowerTAC competitions later on with exactly the same random seed settings as originally used.

Note that server code is not intended to create instances of RandomSeed directly. Instead, please request seeds through RandomSeedRepo.getRandomSeed(). This way, your code will work the same whether using new seeds or replaying a previous simulation.

Version:

1.0 - January 01, 2011

Author:

Carsten Block, John Collins

See Also:

Serialized Form

Constructor Summary

RandomSeed(String classname, long requesterId, String purpose)
Constructor that creates a new seed with a random value.

RandomSeed(String classname, long requesterId, String purpose, long value)
Constructor to re-create a random seed with a given value.

Method Summary

long	getId()
String	getPurpose()
String	getRequesterClass()
long	getRequesterId()
long	getValue()

Methods inherited from class java.util.Random

next, nextBoolean, nextBytes, nextDouble, nextFloat, nextGaussian, nextInt, nextInt, nextLong, setSeed

Methods inherited from class java.lang.Object

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

Constructor Detail

RandomSeed

public RandomSeed(String classname,
                  long requesterId,
                  String purpose)

Constructor that creates a new seed with a random value. To keep the logfile simple, constructors are not logged in this class; only the init() method is logged.

RandomSeed

public RandomSeed(String classname,
                  long requesterId,
                  String purpose,
                  long value)

Constructor to re-create a random seed with a given value.

Method Detail

getId

public long getId()

getRequesterClass

public String getRequesterClass()

getRequesterId

public long getRequesterId()

getPurpose

public String getPurpose()

getValue

public long getValue()