String getInternalData()
    void setInternalData(String internal)
}
// end::type-declaration[]

// tag::type-registration[]
// tag::internal-view-mutation[]
class MyPlugin extends RuleSource {
// end::internal-view-mutation[]
    @ComponentType
    void registerMyComponent(TypeBuilder<MyComponent> builder) {
        builder.internalView(MyComponentInternal)
    }
// end::type-registration[]

import org.gradle.language.base.plugins.LifecycleBasePlugin;
import org.gradle.model.Each;
import org.gradle.model.Finalize;
import org.gradle.model.Model;
import org.gradle.model.Mutate;
import org.gradle.model.RuleSource;
import org.gradle.model.internal.core.NamedEntityInstantiator;
import org.gradle.platform.base.BinaryContainer;
import org.gradle.platform.base.BinarySpec;
import org.gradle.platform.base.ComponentType;

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.gradle.model.internal.core;

import com.google.common.base.Predicate;
import org.gradle.model.RuleSource;
import org.gradle.model.internal.core.rule.describe.ModelRuleDescriptor;
import org.gradle.model.internal.inspect.ExtractedRuleSource;
import org.gradle.model.internal.type.ModelType;

import javax.annotation.Nullable;

@Managed
interface Person {
    String getFirstName()
    void setFirstName(String n)

    String getLastName()
    void setLastName(String n)
}

class PersonRules extends RuleSource {
    @Model
    void people(ModelMap<Person> people) {
    }
}

apply plugin: PersonRules

// tag::create-and-configure[]
model {
    people {
        john(Person) {
            println "creating $it"
            firstName = "John"

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.gradle.model.internal.registry;

import org.gradle.model.RuleSource;
import org.gradle.model.internal.core.ModelAction;
import org.gradle.model.internal.core.ModelActionRole;
import org.gradle.model.internal.core.ModelNode;
import org.gradle.model.internal.core.ModelPath;

    }

    @Override
    public ComponentMetadataHandler all(Object ruleSource) {
        return addRule(createAllSpecRuleAction(ruleActionAdapter.createFromRuleSource(ComponentMetadataDetails.class, ruleSource)));
    }

    @Override
    public ComponentMetadataHandler withModule(Object id, Action<? super ComponentMetadataDetails> rule) {

              String getName()
              void setName(String string)

              Gender getGender()
              void setGender(Gender gender)
            }

            class Rules extends RuleSource {
              @Model
              void p1(Person p1) {}
            }

            apply type: Rules

            model {
              p1 {

   void setPrice(float p); float getPrice()

   void setTemperature(Temperature t)
   Temperature getTemperature()

   void setDataFile(File f); File getDataFile()
}

class ItemRules extends RuleSource {
   @Model
   void item(Item item) {
      def data = item.dataFile.text.trim()
      def (name, quantity, price, temp) = data.split(',')
      item.name = name
      item.quantity = quantity

import org.gradle.language.c.plugins.CLangPlugin;
import org.gradle.model.Each;
import org.gradle.model.ModelMap;
import org.gradle.model.Mutate;
import org.gradle.model.Path;
import org.gradle.model.RuleSource;
import org.gradle.nativeplatform.test.cunit.CUnitTestSuiteBinarySpec;
import org.gradle.nativeplatform.test.cunit.CUnitTestSuiteSpec;
import org.gradle.nativeplatform.test.cunit.internal.DefaultCUnitTestSuiteBinary;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * Denotes that the {@link RuleSource} method rule carrying this annotation defines additional rules based on its inputs.
 */
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
@Incubating
public @interface Rules {