globals.value

Class PseudoRandom

java.lang.Object

util.PropertyContainer

util.PropertyResources

globals.parameter.AbstractParameter

globals.value.AbstractValue

globals.value.PseudoRandom

All Implemented Interfaces:

Parameter, ParameterDepending, Value, Cloneable, ExitCleaning, Initializable, PropertySupplying, ResourceSupplying

public class PseudoRandom
extends AbstractValue
implements ParameterDepending

A Value representing a pseudo-random variable as generated by "Random number generators: good ones are hard to find", Communications of the ACM, Volume 31 , Issue 10 (October 1988) Pages: 1192 - 1201

Nested Class Summary

Nested classes/interfaces inherited from class util.PropertyResources

PropertyResources.Load, PropertyResources.URLResource

Field Summary

Fields

Modifier and Type	Field and Description
static String	DEFNAME The name of this global (ra).
static String	KEY_SEED The value providing the seed as a long.
private static int	LAST_RANDOM_VALUE
private static double	MAX_INT_AS_DOUBLE
private static int	N_RANDOM
private static int	RANDOM_MULTIPLICATOR
private static double	RANDOM_START_VALUE
private static double[]	rands
private Value	seed

Fields inherited from class globals.parameter.AbstractParameter

KEY_FORMAT, KEY_NAME, KEY_PRESERVE, UNKNOWN

Fields inherited from class util.PropertyResources

KEY_NOINITONCREATE, POSTFIX_ALPHABET, POSTFIX_BYTES, POSTFIX_DIR, POSTFIX_EXT, POSTFIX_FILE, POSTFIX_LIST, POSTFIX_MODTIME, POSTFIX_URL

Fields inherited from class util.PropertyContainer

KEY_LISTSEPARATOR, KEY_MAPKEYVALUECHAR, KEY_MAPSEPARATOR

Fields inherited from interface util.PropertySupplying

CONFIG, KEY_CLASS

Fields inherited from interface util.ResourceSupplying

KEY_URLRESOURCES, KEY_URLUSECONFIG, KEY_URLUSECURRENT, KEY_URLUSEHOME

Constructor Summary

Constructors

Constructor and Description
PseudoRandom(Map<String,String> info) Constructs a new Teide-Longitude global.

Method Summary

Modifier and Type	Method and Description
Number	getValue() Returns a next pseudo-random number,i.e., for identical seed values we get identical random numbers.
private static double[]	initRandoms()
void	registerParameter(Parameter time) A parameter depending command should drain the necessarry information to get valid out of a parameter value.
Number	setValue(Number set) Calls Parameter.set(java.lang.Object) but returns the previously set value as a Number.

Methods inherited from class globals.value.AbstractValue

get, set

Methods inherited from class globals.parameter.AbstractParameter

createParameter, delivers, exit, getFormatted, getFormatted, getName, getPreserveFile, getString, getString, init, overrideDefaultName, register, rescanned, setName, toString

Methods inherited from class util.PropertyResources

clone, createFrom, createFrom, createFrom, createInstance, getApplet, getAsResources, getLocate, getPropertiesToKey, getPropertiesToKey, getResource, getResourceAsStream, getResourceFromKey, getResources, hasLocalURLs, initProperties, keyCreate, keyCreate, reload, setApplet

Methods inherited from class util.PropertyContainer

augment, augment, augment, augment, augment, defaultBoolean, defaultChar, defaultDouble, defaultFloat, defaultInt, defaultLong, defaultObject, defaultObject, defaultProperties, defaultProperty, getAsBoolean, getAsChar, getAsDouble, getAsEnums, getAsFloat, getAsInt, getAsList, getAsLong, getAsMap, getAsMap, getAsObject, getAsObject, getProperties, getProperty, has, isNew, parseObject, parseObject, reload, removeProperty, requires, setObject, setProperties, setProperty, stringProperties

Methods inherited from class java.lang.Object

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

Methods inherited from interface globals.Parameter

getFormatted, getName, getString

Methods inherited from interface util.PropertySupplying

defaultBoolean, defaultChar, defaultDouble, defaultFloat, defaultInt, defaultLong, defaultObject, defaultObject, defaultProperties, defaultProperty, getAsBoolean, getAsChar, getAsDouble, getAsFloat, getAsInt, getAsList, getAsLong, getAsMap, getAsObject, getAsObject, getProperties, getProperty, has, parseObject, removeProperty, setObject, setProperty, stringProperties

Methods inherited from interface util.Initializable

init

Field Detail

KEY_SEED

public static final String KEY_SEED

The value providing the seed as a long.

See Also:

Constant Field Values

DEFNAME

public static final String DEFNAME

The name of this global (ra).

See Also:

Constant Field Values

N_RANDOM

private static final int N_RANDOM

See Also:

Constant Field Values

LAST_RANDOM_VALUE

private static final int LAST_RANDOM_VALUE

See Also:

Constant Field Values

MAX_INT_AS_DOUBLE

private static final double MAX_INT_AS_DOUBLE

See Also:

Constant Field Values

RANDOM_MULTIPLICATOR

private static final int RANDOM_MULTIPLICATOR

See Also:

Constant Field Values

RANDOM_START_VALUE

private static final double RANDOM_START_VALUE

See Also:

Constant Field Values

rands

private static final double[] rands

seed

private Value seed

Constructor Detail

PseudoRandom

public PseudoRandom(Map<String,String> info)

Constructs a new Teide-Longitude global.

Method Detail

initRandoms

private static double[] initRandoms()

getValue

public Number getValue()

Returns a next pseudo-random number,i.e., for identical seed values we get identical random numbers.

Specified by:

getValue in interface Value

setValue

public Number setValue(Number set)
                throws UnsupportedOperationException

Description copied from interface: Value

Calls Parameter.set(java.lang.Object) but returns the previously set value as a Number.

Specified by:

setValue in interface Value

Throws:

UnsupportedOperationException

registerParameter

public void registerParameter(Parameter time)

Description copied from interface: ParameterDepending

A parameter depending command should drain the necessarry information to get valid out of a parameter value. During rendering, parameter depending commands should receive their data through this method. Note that it is always possible to pile up all the information needed for a single command in a single parameter.

Specified by:

registerParameter in interface ParameterDepending