Package org.instancio

Interface InstancioOfCollectionApi<C>

Type Parameters:

C - collection type to create

All Superinterfaces:

InstancioApi<C>

public interface InstancioOfCollectionApi<C>
extends InstancioApi<C>

Instancio API for generating collections populated with random data.

Since:

2.0.0

Method Summary

Modifier and Type	Method	Description
InstancioOfCollectionApi<C>	size(int size)	Specifies collection size to generate.

Methods inherited from interface org.instancio.InstancioApi

asResult, assign, create, generate, generate, ignore, lenient, onComplete, set, stream, subtype, supply, supply, toModel, verbose, withMaxDepth, withNullable, withSeed, withSettings

Method Details

size

InstancioOfCollectionApi<C> size(int size)

Specifies collection size to generate.

This method is syntactic sugar for:

 List<Integer> result = Instancio.ofList(Integer.class)
     .generate(root(), gen -> gen.collection().size(50))
     .create();
 

Therefore, if you modify the collection generator via root() selector (for example, to specify the collection's type) then you will need to specify the size using the generator as well.

For example, instead of:

 List<Integer> result = Instancio.ofList(Integer.class)
     .size(50)
     .generate(root(), gen -> gen.collection().subtype(LinkedList.class))
     .create();
 

use:

 List<Integer> result = Instancio.ofList(Integer.class)
     .generate(root(), gen -> gen.collection().subtype(LinkedList.class).size(50))
     .create();
 

Parameters:

size - of the collection to generate

Returns:

API builder reference

Since:

2.0.0