import java.util.Map;
import java.util.Set;

public class DefaultPolymorphicNamedEntityInstantiator<T> implements PolymorphicNamedEntityInstantiator<T> {
    private final Map<Class<? extends T>, NamedDomainObjectFactory<? extends T>> factories = new HashMap<>();
    private final Class<? extends T> baseType;
    private final String displayName;

    public DefaultPolymorphicNamedEntityInstantiator(Class<? extends T> type, String displayName) {

import org.gradle.api.NamedDomainObjectFactory
import org.gradle.api.internal.CollectionCallbackActionDecorator
import org.gradle.api.internal.DefaultDomainObjectSet
import org.gradle.api.internal.DefaultPolymorphicNamedEntityInstantiator
import org.gradle.internal.Actions
import spock.lang.Specification

class DomainObjectCollectionBackedModelMapTest extends Specification {
    def "created items get added to the backing collection"() {

import java.util.Set;

public class DefaultPolymorphicDomainObjectContainer<T> extends AbstractPolymorphicDomainObjectContainer<T>
    implements ExtensiblePolymorphicDomainObjectContainer<T> {
    protected final DefaultPolymorphicNamedEntityInstantiator<T> namedEntityInstantiator;
    private final Instantiator elementInstantiator;

    // NOTE: This constructor exists for backwards compatibility

import spock.lang.Specification
import spock.lang.Subject

class DefaultPolymorphicNamedEntityInstantiatorTest extends Specification {

    @Subject
    def instantiator = new DefaultPolymorphicNamedEntityInstantiator<Base>(Base, "this container")

    class Base {
        String value
    }

    class TestType extends Base {}

    class AnotherTestType extends Base {}

 */
package org.gradle.model.internal.fixture;

import org.gradle.api.Action;
import org.gradle.api.NamedDomainObjectFactory;
import org.gradle.api.Transformer;
import org.gradle.api.internal.DefaultPolymorphicNamedEntityInstantiator;
import org.gradle.api.internal.PolymorphicNamedEntityInstantiator;
import org.gradle.api.internal.rules.DefaultRuleAwarePolymorphicNamedEntityInstantiator;