</div>

### Output için Model { #model-for-output }

Ancak aynı modeli output olarak şöyle kullanırsanız:

{* ../../docs_src/separate_openapi_schemas/tutorial001_py310.py hl[19] *}

...`description` default değere sahip olduğu için, o alan için **hiçbir şey döndürmeseniz** bile yine de **o default değeri** alır.

### Output Response Verisi için Model { #model-for-output-response-data }

          <basedir>${project.basedir}/../../api/maven-api-model</basedir>
          <velocityBasedir>${project.basedir}/../../src/mdo</velocityBasedir>
          <version>4.1.0</version>
          <models>
            <model>src/main/mdo/maven.mdo</model>
          </models>
          <params>
            <param>forcedIOModelVersion=4.0.0</param>
            <param>packageModelV3=org.apache.maven.model</param>

        <configuration>
          <version>2.0.0</version>
          <velocityBasedir>${project.basedir}/../../src/mdo</velocityBasedir>
          <models>
            <model>src/main/mdo/settings.mdo</model>
          </models>
          <templates>
            <template>model.vm</template>
          </templates>
          <params>
            <param>packageModelV4=org.apache.maven.api.settings</param>

        <configuration>
          <version>1.2.0</version>
          <velocityBasedir>${project.basedir}/../../src/mdo</velocityBasedir>
          <models>
            <model>src/main/mdo/toolchains.mdo</model>
          </models>
          <templates>
            <template>model.vm</template>
          </templates>
          <params>
            <param>packageModelV4=org.apache.maven.api.toolchain</param>

</div>

## Die App mit einem einzelnen Modell erstellen { #create-the-app-with-a-single-model }

Wir erstellen zuerst die einfachste erste Version der App mit einem einzigen **SQLModel**-Modell.

Später werden wir sie verbessern, indem wir unter der Haube **mehrere Modelle** verwenden, um Sicherheit und Vielseitigkeit zu erhöhen. 🤓

### Modelle erstellen { #create-models }

Importieren Sie `SQLModel` und erstellen Sie ein Datenbankmodell:

     */
    List<String> getModelIds();

    /**
     * Gets the assembled model.
     *
     * @return The assembled model, never {@code null}.
     */
    Model getEffectiveModel();

    /**
     * Gets the raw model as it was read from the input model source. Apart from basic validation, the raw model has not

## Use Case { #use-case }

Let's start with an example **use case** and then see how to solve it with this.

Let's imagine that you have some **machine learning models** that you want to use to handle requests. 🤖

The same models are shared among requests, so, it's not one model per request, or one per user or something similar.

    <version>4.0.0-alpha-1-SNAPSHOT</version>
  </parent>

  <artifactId>maven-model</artifactId>

  <name>Maven Model</name>
  <description>Model for Maven POM (Project Object Model)</description>

  <dependencies>
    <dependency>
      <groupId>org.apache.maven</groupId>
      <artifactId>maven-api-model</artifactId>
      <version>4.0.0-alpha-1-SNAPSHOT</version>
    </dependency>
    <dependency>

	// ErrPrimaryKeyRequired primary keys required
	ErrPrimaryKeyRequired = errors.New("primary key required")
	// ErrModelValueRequired model value required
	ErrModelValueRequired = errors.New("model value required")
	// ErrModelAccessibleFieldsRequired model accessible fields required
	ErrModelAccessibleFieldsRequired = errors.New("model accessible fields required")
	// ErrSubQueryRequired sub query required
	ErrSubQueryRequired = errors.New("sub query required")

 * under the License.
 */
package org.apache.maven.model.normalization;

import org.apache.maven.model.Model;
import org.apache.maven.model.building.ModelBuildingRequest;
import org.apache.maven.model.building.ModelProblemCollector;

/**
 * Handles normalization of a model. In this context, normalization is the process of producing a canonical
 * representation for models that physically look different but are semantically equivalent.
 *