org.databene.domain.math
Class PadovanLongGenerator

java.lang.Object
  org.databene.benerator.util.AbstractGenerator<E>
      org.databene.benerator.primitive.number.AbstractNumberGenerator<E>
          org.databene.benerator.primitive.number.RecurrenceRelationNumberGenerator<java.lang.Long>
              org.databene.domain.math.PadovanLongGenerator

All Implemented Interfaces:

java.io.Closeable, Generator<java.lang.Long>, org.databene.commons.Resettable, org.databene.commons.ThreadAware

public class PadovanLongGenerator
extends RecurrenceRelationNumberGenerator<java.lang.Long>

Generates numbers according to the Padovan Sequence. It is defined recursively by

• P(0) = P(1) = P(2) = 1
• P(n) = P(n-2) + P(n-3)

Created at 03.07.2009 13:22:41

Since:

0.6.0

Author:

Volker Bergmann

See Also:

PadovanSequence

Field Summary

Fields inherited from class org.databene.benerator.primitive.number.AbstractNumberGenerator

generatedType, max, min, precision

Fields inherited from class org.databene.benerator.util.AbstractGenerator

context, state

Constructor Summary

PadovanLongGenerator(java.lang.Long min, java.lang.Long max, boolean unique)

Method Summary

protected java.lang.Long	a0(int n) Must be implemented by child classes to return the seed values of the recurrence relation.
protected java.lang.Long	aN() Must be implemented by child classes to implement the recurrence relation.
void	reset() See Resettable.reset()
protected void	resetMembers()

Methods inherited from class org.databene.benerator.primitive.number.RecurrenceRelationNumberGenerator

aN, calculateNext, close, generate, getDepth, getN, init

Methods inherited from class org.databene.benerator.primitive.number.AbstractNumberGenerator

getGeneratedType, getMax, getMin, getPrecision, isParallelizable, isThreadSafe, setMax, setMin, setPrecision

Methods inherited from class org.databene.benerator.util.AbstractGenerator

assertInitialized, assertNotInitialized, toString, wasInitialized

Methods inherited from class java.lang.Object

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

Constructor Detail

PadovanLongGenerator

public PadovanLongGenerator(java.lang.Long min,
                            java.lang.Long max,
                            boolean unique)

Method Detail

a0

protected java.lang.Long a0(int n)

Description copied from class: RecurrenceRelationNumberGenerator

Must be implemented by child classes to return the seed values of the recurrence relation. These are the initial values which are defined as constants (a(0)..a(depth-1)).

Specified by:

a0 in class RecurrenceRelationNumberGenerator<java.lang.Long>

aN

protected java.lang.Long aN()

Description copied from class: RecurrenceRelationNumberGenerator

Must be implemented by child classes to implement the recurrence relation. It needs to use the RecurrenceRelationNumberGenerator.aN(int) method to retrieve the most recent calculated values.

Specified by:

aN in class RecurrenceRelationNumberGenerator<java.lang.Long>

reset

public void reset()

Description copied from class: RecurrenceRelationNumberGenerator

See Resettable.reset()

Specified by:

reset in interface org.databene.commons.Resettable

Overrides:

reset in class RecurrenceRelationNumberGenerator<java.lang.Long>

resetMembers

protected void resetMembers()

Overrides:

resetMembers in class RecurrenceRelationNumberGenerator<java.lang.Long>