org.databene.benerator.factory
Class StochasticGeneratorFactory
java.lang.Object
org.databene.benerator.factory.GeneratorFactory
org.databene.benerator.factory.StochasticGeneratorFactory
public class StochasticGeneratorFactory
- extends GeneratorFactory
GeneratorFactory
implementation that generates docile data in order to avoid functional failures
and combines them randomly and repetitively for generating large data volumes. Its primary purpose is
data generation for performance tests.
Created: 04.07.2011 09:34:34
- Since:
- 0.7.0
- Author:
- Volker Bergmann
Method Summary |
Generator<?> |
applyNullSettings(Generator<?> source,
java.lang.Boolean nullable,
java.lang.Double nullQuota)
|
|
createAlternativeGenerator(java.lang.Class<T> targetType,
Generator<T>[] sources,
Uniqueness uniqueness)
|
Generator<java.lang.Boolean> |
createBooleanGenerator(java.lang.Double trueQuota)
Creates a generator for boolean values with a trueQuota [0-1] |
|
createCompositeArrayGenerator(java.lang.Class<T> componentType,
Generator<T>[] sources,
Uniqueness uniqueness)
Creates a generator that reads products of an array of generators and combines them in an array. |
NonNullGenerator<java.lang.String> |
createCompositeStringGenerator(GeneratorProvider<?> partGeneratorProvider,
int minParts,
int maxParts,
Uniqueness uniqueness)
|
|
createFromWeightedLiteralList(java.lang.String valueSpec,
java.lang.Class<T> targetType,
Distribution distribution,
boolean unique)
|
|
createNullGenerator(java.lang.Class<T> generatedType)
|
|
createSampleGenerator(java.util.Collection<T> values,
java.lang.Class<T> generatedType,
boolean unique)
|
|
createSingleValueGenerator(T value,
boolean unique)
Creates a generator that returns a single value. |
NonNullGenerator<java.lang.String> |
createStringGenerator(java.util.Set<java.lang.Character> chars,
java.lang.Integer minLength,
java.lang.Integer maxLength,
int lengthGranularity,
Distribution lengthDistribution,
Uniqueness uniqueness)
|
Distribution |
defaultDistribution(Uniqueness uniqueness)
|
protected Distribution |
defaultLengthDistribution(Uniqueness uniqueness,
boolean required)
|
protected double |
defaultTrueQuota()
|
protected boolean |
defaultUnique()
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
StochasticGeneratorFactory
public StochasticGeneratorFactory()
createAlternativeGenerator
public <T> Generator<T> createAlternativeGenerator(java.lang.Class<T> targetType,
Generator<T>[] sources,
Uniqueness uniqueness)
- Specified by:
createAlternativeGenerator
in class GeneratorFactory
createCompositeArrayGenerator
public <T> Generator<T[]> createCompositeArrayGenerator(java.lang.Class<T> componentType,
Generator<T>[] sources,
Uniqueness uniqueness)
- Description copied from class:
GeneratorFactory
- Creates a generator that reads products of an array of generators and combines them in an array.
- Specified by:
createCompositeArrayGenerator
in class GeneratorFactory
sources
- the source generators
- Returns:
- a generator of the desired characteristics
createSampleGenerator
public <T> Generator<T> createSampleGenerator(java.util.Collection<T> values,
java.lang.Class<T> generatedType,
boolean unique)
- Specified by:
createSampleGenerator
in class GeneratorFactory
createFromWeightedLiteralList
public <T> Generator<T> createFromWeightedLiteralList(java.lang.String valueSpec,
java.lang.Class<T> targetType,
Distribution distribution,
boolean unique)
- Specified by:
createFromWeightedLiteralList
in class GeneratorFactory
createBooleanGenerator
public Generator<java.lang.Boolean> createBooleanGenerator(java.lang.Double trueQuota)
- Description copied from class:
GeneratorFactory
- Creates a generator for boolean values with a trueQuota [0-1]
- Overrides:
createBooleanGenerator
in class GeneratorFactory
- Parameters:
trueQuota
- a value from 0 to 1, indicating the quota of true values to generate among the non-null values
- Returns:
- a Boolean generator of the desired characteristics
createStringGenerator
public NonNullGenerator<java.lang.String> createStringGenerator(java.util.Set<java.lang.Character> chars,
java.lang.Integer minLength,
java.lang.Integer maxLength,
int lengthGranularity,
Distribution lengthDistribution,
Uniqueness uniqueness)
- Specified by:
createStringGenerator
in class GeneratorFactory
applyNullSettings
public Generator<?> applyNullSettings(Generator<?> source,
java.lang.Boolean nullable,
java.lang.Double nullQuota)
- Specified by:
applyNullSettings
in class GeneratorFactory
createSingleValueGenerator
public <T> Generator<T> createSingleValueGenerator(T value,
boolean unique)
- Description copied from class:
GeneratorFactory
- Creates a generator that returns a single value.
- Specified by:
createSingleValueGenerator
in class GeneratorFactory
- Parameters:
value
- the value to return
- Returns:
- a generator that returns a constant value.
defaultTrueQuota
protected double defaultTrueQuota()
- Specified by:
defaultTrueQuota
in class GeneratorFactory
defaultLengthDistribution
protected Distribution defaultLengthDistribution(Uniqueness uniqueness,
boolean required)
- Specified by:
defaultLengthDistribution
in class GeneratorFactory
defaultDistribution
public Distribution defaultDistribution(Uniqueness uniqueness)
- Specified by:
defaultDistribution
in class GeneratorFactory
defaultUnique
protected boolean defaultUnique()
- Specified by:
defaultUnique
in class GeneratorFactory
createNullGenerator
public <T> Generator<T> createNullGenerator(java.lang.Class<T> generatedType)
- Specified by:
createNullGenerator
in class GeneratorFactory
createCompositeStringGenerator
public NonNullGenerator<java.lang.String> createCompositeStringGenerator(GeneratorProvider<?> partGeneratorProvider,
int minParts,
int maxParts,
Uniqueness uniqueness)
- Specified by:
createCompositeStringGenerator
in class GeneratorFactory
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