Package org.instancio.generator.util

Class CollectionGeneratorSpecImpl<T>

java.lang.Object

org.instancio.generator.AbstractGenerator<Collection<T>>

org.instancio.generator.util.CollectionGenerator<T>

org.instancio.generator.util.CollectionGeneratorSpecImpl<T>

All Implemented Interfaces:

Generator<Collection<T>>, GeneratorSpec<Collection<T>>, CollectionGeneratorSpec<T>

public class CollectionGeneratorSpecImpl<T>
extends CollectionGenerator<T>

Field Summary

Fields inherited from class org.instancio.generator.util.CollectionGenerator

maxSize, minSize, nullable, nullableElements, type, withElements

Constructor Summary

Constructors

Constructor	Description
CollectionGeneratorSpecImpl(GeneratorContext context)

Method Summary

Modifier and Type	Method	Description
Collection<T>	generate(Random random)	Returns a generated value.
boolean	isDelegating()	If true, then this generator delegate object instantiation to another generator supplied via Generator.setDelegate(Generator).
void	setDelegate(Generator<?> delegate)	Set a delegate that will be responsible for instantiating an object on behalf of this generator.
Optional<Class<?>>	targetClass()	Target class to generate.

Methods inherited from class org.instancio.generator.util.CollectionGenerator

getHints, maxSize, minSize, nullable, nullableElements, size, subtype, with

Methods inherited from class org.instancio.generator.AbstractGenerator

getContext

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.instancio.Generator

apiMethodName, supports

Constructor Detail

CollectionGeneratorSpecImpl

public CollectionGeneratorSpecImpl(GeneratorContext context)

Method Detail

generate

public Collection<T> generate(Random random)

Description copied from interface: Generator

Returns a generated value.

If the generated value is random, it needs to be generated using the given Random instance. This ensures the data is generated with the same seed value and allows random data to be reproduced by specifying the seed value.

Specified by:

generate in interface Generator<T>

Overrides:

generate in class CollectionGenerator<T>

Parameters:

random - provider for random values

Returns:

generated value

isDelegating

public boolean isDelegating()

Description copied from interface: Generator

If true, then this generator delegate object instantiation to another generator supplied via Generator.setDelegate(Generator).

A generator is delegating when it does not know the type it needs to generate. For example, the collection generator could generate an ArrayList, a HashSet, or some other collection type.

Returns:

true if this is a delegating generator

setDelegate

public void setDelegate(Generator<?> delegate)

Description copied from interface: Generator

Set a delegate that will be responsible for instantiating an object on behalf of this generator.

Parameters:

delegate - that will create the target object

targetClass

public Optional<Class<?>> targetClass()

Description copied from interface: Generator

Target class to generate.

If Optional.empty() is returned, it will default to the field type for fields, and element type for collection and array elements.

If the type is an interface, such as Set, will generate a default implementation class such as HashSet.

Returns:

target class