2006-11-04
 -----

Maven 4 API - Immutable Toolchains Model

 This is strictly the immutable model for Maven toolchains in <<<org.apache.maven.api.toolchain>>> package.

 The following are generated from this model:

   * {{{./apidocs/index.html}Java sources}} with <<<Builder>>> inner classes for immutable instances creation.

 See also corresponding {{{../../maven-toolchain-model/index.html}Maven classical toolchains model documentation}}.

{* ../../docs_src/body/tutorial001.py hl[4] *}

## Crie seu modelo de dados

Então você declara seu modelo de dados como uma classe que herda `BaseModel`.

Utilize os tipos Python padrão para todos os atributos:

{* ../../docs_src/body/tutorial001.py hl[7:11] *}

	var name string
	var total int
	if err := DB.Model(&User{}).Select("name, sum(age)").Where("name = ?", "groupby").Group("name").Row().Scan(&name, &total); err != nil {
		t.Errorf("no error should happen, but got %v", err)
	}

	if name != "groupby" || total != 60 {
		t.Errorf("name should be groupby, but got %v, total should be 60, but got %v", name, total)
	}

		t.Fatalf("Failed to query product, got error: %v", err)
	}

	DB.Model(&result3).Update("Price", 800)
	var result4 Product2
	DB.First(&result4, "name = ?", "Nice2")

	if result4.Price != 600 {
		t.Errorf("Admin product's price should not be changed, expects: %v, got %v", 600, result4.Price)
	}
}

type Product3 struct {
	gorm.Model
	Name  string
	Code  string
	Price int64
	Owner string
}

Aqui nós estamos simulando a *inicialização* custosa do carregamento do modelo colocando a (falsa) função de modelo no dicionário com modelos de _machine learning_ antes do `yield`. Este código será executado **antes** da aplicação **começar a receber requisições**, durante a *inicialização*.

import org.apache.maven.model.Dependency;
import org.apache.maven.model.DependencyManagement;
import org.apache.maven.model.DistributionManagement;
import org.apache.maven.model.Model;
import org.apache.maven.model.Relocation;
import org.apache.maven.model.Repository;
import org.apache.maven.model.building.ModelBuildingException;
import org.apache.maven.model.building.ModelBuildingRequest;

 -----

Maven 4 API - Immutable Maven Model

 This is strictly the immutable model for Maven POM (Project Object Model), so really just plain objects in <<<org.apache.maven.api.model>>> package.

 The following are generated from this model:

   * {{{./apidocs/index.html}Java sources}} with <<<Builder>>> inner classes for immutable instances creation.

import java.io.File;

import org.apache.maven.model.Model;

/**
 */
@Deprecated
public interface PathTranslator {
    String ROLE = PathTranslator.class.getName();

    void alignToBaseDirectory(Model model, File basedir);

    String alignToBaseDirectory(String path, File basedir);

    void unalignFromBaseDirectory(Model model, File basedir);

import java.util.List;
import java.util.Optional;

import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.model.Build;
import org.apache.maven.api.model.Model;
import org.apache.maven.api.model.Profile;

/**
 * Interface representing a Maven project which can be created using the
 * {@link org.apache.maven.api.services.ProjectBuilder ProjectBuilder} service.

    }

    @Override
    public Model interpolate(Model model, File projectDir, ProjectBuilderConfiguration config, boolean debugEnabled)
            throws ModelInterpolationException {
        interpolateObject(model, model, projectDir, config, debugEnabled);

        return model;
    }

    protected void interpolateObject(