import org.gradle.api.DomainObjectSet;
import org.gradle.api.ExtensiblePolymorphicDomainObjectContainer;
import org.gradle.api.NamedDomainObjectContainer;
import org.gradle.api.NamedDomainObjectFactory;
import org.gradle.api.NamedDomainObjectList;
import org.gradle.api.NamedDomainObjectSet;
import org.gradle.api.internal.CompositeDomainObjectSet;
import org.gradle.internal.service.scopes.Scope;
import org.gradle.internal.service.scopes.ServiceScope;

====

[[nameddomainobjectlist]]
== 3. `NamedDomainObjectList`

A link:{javadocPath}/org/gradle/api/NamedDomainObjectList.html[`NamedDomainObjectList`] holds a list of configurable objects, where each element has a name associated with it.

This is similar to `NamedDomainObjectContainer`, however a `NamedDomainObjectList` doesn't manage the objects in the collection.

    }

    @Override
    public NamedDomainObjectList<T> named(Spec<String> nameFilter) {
        Spec<T> spec = convertNameToElementFilter(nameFilter);
        return new DefaultNamedDomainObjectList<>(this, nameFilter, createFilter(spec), getInstantiator(), getNamer());
    }

    @Override
    public NamedDomainObjectList<T> matching(Closure spec) {

}
// end::ndos[]

// tag::ndol[]

abstract class MyPluginExtensionNamedDomainObjectList {
    // Define a named domain object list to hold Person objects
    private val people: NamedDomainObjectList<Person> = project.objects.namedDomainObjectList(Person::class)

    // Add a person to the container
    fun addPerson(name: String) {
        people.plus(name)
    }
}
// end::ndol[]

// tag::ndoc[]

     * @param <T> The type of objects for the domain object set to contain.
     * @return The domain object list.
     * @since 6.1
     */
    <T> NamedDomainObjectList<T> namedDomainObjectList(Class<T> elementType);

    /**
     * Creates a {@link Property} implementation to hold values of the given type. The property has no initial value.
     *

        people.create(name)
    }
}
// end::ndos[]

// tag::ndol[]

abstract class MyPluginExtensionNamedDomainObjectList {
    // Define a named domain object container to hold Person objects
    NamedDomainObjectList<Person> people = project.container(Person)

    // Add a person to the container
    void addPerson(String name) {
        people.create(name: name)
    }
}
// end::ndol[]

// tag::ndoc[]

        """

        expect:
        succeeds()
    }

    def "plugin can create a NamedDomainObjectList instance that uses a named managed type"() {
        given:
        buildFile """
            interface NamedThing extends Named { }

            def container = project.objects.namedDomainObjectList(NamedThing)
            assert container != null

Method <org.gradle.api.NamedDomainObjectList.matching(groovy.lang.Closure)> has arguments/return type groovy.lang.Closure that is not Gradle public API or primitive or built-in JDK classes or Kotlin classes in (NamedDomainObjectList.java:0)