java.lang.Object
- org.eclipse.net4j.util.event.Notifier
- - org.eclipse.net4j.util.lifecycle.Lifecycle
  - - org.eclipse.net4j.util.security.Randomizer

All Implemented Interfaces:

INotifier, INotifier.INotifier2, IDeactivateable, ILifecycle, ILifecycle.DeferrableActivation, IRandomizer
```
public class Randomizer
extends Lifecycle
implements IRandomizer
```
Author:

Eike Stepper

Nested Class Summary
- Nested classes/interfaces inherited from interface org.eclipse.net4j.util.lifecycle.ILifecycle
  ILifecycle.DeferrableActivation
- Nested classes/interfaces inherited from interface org.eclipse.net4j.util.event.INotifier
  INotifier.INotifier2

Field Summary

Fields
Modifier and Type Field Description

static java.lang.String ALGORITHM_SHA1PRNG

static java.lang.String DEFAULT_ALGORITHM_NAME
- Fields inherited from class org.eclipse.net4j.util.lifecycle.Lifecycle
  USE_LABEL

Constructor Summary

Constructors
Constructor Description

Randomizer()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected void`	`doActivate()`
`protected void`	`doBeforeActivate()`
`protected void`	`doDeactivate()`
`byte[]`	`generateSeed(int numBytes)`
`java.lang.String`	`getAlgorithm()`
`java.lang.String`	`getAlgorithmName()`
`java.lang.String`	`getProviderName()`
`boolean`	`nextBoolean()`
`void`	`nextBytes(byte[] bytes)`
`double`	`nextDouble()`
`float`	`nextFloat()`
`double`	`nextGaussian()`
`int`	`nextInt()`
`int`	`nextInt(int n)`
`long`	`nextLong()`
`java.lang.String`	`nextString(int length, java.lang.String alphabet)`
`void`	`setAlgorithmName(java.lang.String algorithmName)`
`void`	`setProviderName(java.lang.String providerName)`
`void`	`setSeed(byte[] seed)`
`void`	`setSeed(long seed)`

Methods inherited from class org.eclipse.net4j.util.lifecycle.Lifecycle
activate, checkActive, checkArg, checkArg, checkInactive, checkNull, checkState, checkState, deactivate, deferredActivate, doAfterActivate, doBeforeDeactivate, dump, getLifecycleState, isActive, isDeferredActivation, toString

Methods inherited from class org.eclipse.net4j.util.event.Notifier
addListener, addUniqueListener, fireEvent, fireEvent, fireEvent, fireThrowable, firstListenerAdded, getListeners, getNotificationService, hasListener, hasListeners, lastListenerRemoved, listenerAdded, listenerRemoved, removeListener

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.eclipse.net4j.util.event.INotifier
addListener, getListeners, hasListeners, removeListener

Field Detail

ALGORITHM_SHA1PRNG

public static final java.lang.String ALGORITHM_SHA1PRNG

See Also:: Constant Field Values

DEFAULT_ALGORITHM_NAME

public static final java.lang.String DEFAULT_ALGORITHM_NAME

See Also:: Constant Field Values

Constructor Detail
- Randomizer
```
public Randomizer()
```

Method Detail

getAlgorithmName

public java.lang.String getAlgorithmName()

setAlgorithmName

public void setAlgorithmName(java.lang.String algorithmName)

getProviderName

public java.lang.String getProviderName()

setProviderName

public void setProviderName(java.lang.String providerName)

setSeed
```
public void setSeed(byte[] seed)
```

setSeed
```
public void setSeed(long seed)
```

nextBoolean
```
public boolean nextBoolean()
```
Specified by:

nextBoolean in interface IRandomizer

nextDouble
```
public double nextDouble()
```
Specified by:

nextDouble in interface IRandomizer

nextFloat
```
public float nextFloat()
```
Specified by:

nextFloat in interface IRandomizer

nextGaussian
```
public double nextGaussian()
```
Specified by:

nextGaussian in interface IRandomizer

nextInt
```
public int nextInt()
```
Specified by:

nextInt in interface IRandomizer

nextInt
```
public int nextInt(int n)
```
Specified by:

nextInt in interface IRandomizer

nextLong
```
public long nextLong()
```
Specified by:

nextLong in interface IRandomizer

generateSeed
```
public byte[] generateSeed(int numBytes)
```
Specified by:

generateSeed in interface IRandomizer

getAlgorithm

public java.lang.String getAlgorithm()

nextBytes
```
public void nextBytes(byte[] bytes)
```
Specified by:

nextBytes in interface IRandomizer

nextString

public java.lang.String nextString(int length,
                                   java.lang.String alphabet)

Specified by:: nextString in interface IRandomizer

doBeforeActivate

protected void doBeforeActivate()
                         throws java.lang.Exception

Overrides:: doBeforeActivate in class Lifecycle
Throws:: java.lang.Exception

doActivate

protected void doActivate()
                   throws java.lang.Exception

Overrides:: doActivate in class Lifecycle
Throws:: java.lang.Exception

doDeactivate

protected void doDeactivate()
                     throws java.lang.Exception

Overrides:: doDeactivate in class Lifecycle
Throws:: java.lang.Exception

Modifier and Type	Field	Description
`static java.lang.String`	`ALGORITHM_SHA1PRNG`
`static java.lang.String`	`DEFAULT_ALGORITHM_NAME`

Class Randomizer

Nested Class Summary

Nested classes/interfaces inherited from interface org.eclipse.net4j.util.lifecycle.ILifecycle

Nested classes/interfaces inherited from interface org.eclipse.net4j.util.event.INotifier

Field Summary

Fields inherited from class org.eclipse.net4j.util.lifecycle.Lifecycle

Constructor Summary

Method Summary

Methods inherited from class org.eclipse.net4j.util.lifecycle.Lifecycle

Methods inherited from class org.eclipse.net4j.util.event.Notifier

Methods inherited from class java.lang.Object

Methods inherited from interface org.eclipse.net4j.util.event.INotifier

Field Detail

ALGORITHM_SHA1PRNG

DEFAULT_ALGORITHM_NAME

Constructor Detail

Randomizer

Method Detail

getAlgorithmName

setAlgorithmName

getProviderName

setProviderName

setSeed

setSeed

nextBoolean

nextDouble

nextFloat

nextGaussian

nextInt

nextInt

nextLong

generateSeed

getAlgorithm

nextBytes

nextString

doBeforeActivate

doActivate

doDeactivate