Raible's Wiki: CreateManager

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In the context of [AppFuse], this is called a Manager class. It's main responsibility to act as a bridge between the persistence (DAO) layer and the

web layer. The [Business Delegate|http://java.sun.com/blueprints/corej2eepatterns/Patterns/BusinessDelegate.html] pattern from Sun says that these objects are useful for de-coupling your presentation layer from your database layer (i.e. for Swing apps). Managers should also be where you put any business logic for your application.

No contexto do [AppFuse], isto é chamado de classe Manager(Gerente). Sua responsabilidade principal é agir como uma ponte entre a camada de persistência(DAO) e a camada web. O padrão [Business Delegate|http://java.sun.com/blueprints/corej2eepatterns/Patterns/BusinessDelegate.html] da Sun dita que estes objetos são úteis para desacoplar a camada de apresentação da camada de dados (i.e. para aplicações Swing). Gerentes(Managers) devem ser colocados onde lógicas de negócio são necessárias.

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;:%%(color: blue)''I will tell you how I do stuff in the __Real World__ in text like this.''%%

;:%%(color: blue)''Vou dizer a vocês como faço as coisas no __Mundo Real__ em textos como este.''%%

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Let's get started by creating a new ManagerTest and Manager in AppFuse's architecture.

Vamos começar criando novas classes ManagerTest e Manager na arquitetura AppFuse.

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!Table of Contents

* [1] Create a new ManagerTest to run JUnit tests on the Manager

* [2] Create a new Manager to talk to the DAO

* [3] Configure Spring for this Manager and Transactions

* [4] Run the ManagerTest

!Tabela de Conteúdo

* [1] Criar um novo ManagerTest para rodar testes JUnit no Manager

* [2] Criar um novo Manager para conversar com o DAO

* [3] Configurar o Spring para este Manager e as Transações

* [4] Rodar o ManagerTest

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!!Create a new ManagerTest to run JUnit tests on the Manager [#1]

In [Part I|CreateDAO], we created a Person object and PersonDao - so let's continue developing this entity. First, let's create a JUnit test for the PersonManager. Create PersonManagerTest in the test/service/**/service directory. We'll want to test the same basic methods (get, save, remove) that our DAO has.

!!Criar um novo ManagerTest para rodar testes JUnit no Manager [#1]

Na [Parte I|CreateDAO_pt], criamos o objeto Person e o PersonDao - então vamos continuar a desenvolver esta entidade. Primeiramente, vamos criar o teste JUnit para o PersonManager. Crie a classe PersonManagerTest no diretório test/service/**/service. Queremos testar os mesmos métodos básicos (get, save, remove) que o nosso DAO tem.

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;:''This may seem redundant (why all the tests!), but these tests are GREAT to have 6 months down the road.''

;:''Isto pode parecer redundante (o porquê de todos estes testes!), mas estes testes são EXCELENTES para ter depois de 6 meses de estrada.''

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This class should extend [BaseManagerTestCase|http://raibledesigns.com/downloads/appfuse/api/org/appfuse/service/BaseManagerTestCase.java.html], which already exists in the ''service'' package. The parent class (BaseManagerTestCase) serves the same functionality as the BaseDaoTestCase - to load a properties file that has the same name as your *Test.class, as well as to initialize Spring's ApplicationContext.

Esta classe deve estender [BaseManagerTestCase|http://raibledesigns.com/downloads/appfuse/api/org/appfuse/service/BaseManagerTestCase.java.html], que já existe no pacote ''service''. A classe pai (BaseManagerTestCase) serve para o mesmo propósito da classe BaseDaoTestCase - carregar um arquivo .properties que possui o mesmo nome de sua classe *Test, assim como inicializar o ApplicationContext do Spring.

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;:%%(color: blue)''I usually copy (open → save as) an existing test (i.e. UserManagerTest.java) and find/replace [[Uu]ser with [[Pp]erson, or whatever the name of my object is.''%%

;:%%(color: blue)''Usualmente eu copio (open → save as) um teste existente (i.e. UserManagerTest.java) e utilizando ctrl+f para encontrar/substituir [[Uu]ser com [[Pp]erson, ou qualquer que seja o nome do meu objeto.''%%

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The code below is what we need for a basic JUnit test of our Managers. The code below simply creates and destroys the PersonManager. The "ctx" object is initialized in the [BaseManagerTestCase|http://raibledesigns.com/downloads/appfuse/api/org/appfuse/service/BaseManagerTestCase.java.html] class.

O código abaixo é o que precisamos para um teste JUnit básico para nossos Managers. Diferente do DaoTest, este teste utiliza [jMock|http://jmock.org] para isolar o Manager de suas dependências e fazer um teste unitário ''verdadeiro''.

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import org.apache.commons.logging.Log;

import org.apache.commons.logging.LogFactory;

import java.util.List;

import java.util.ArrayList;

import org.appfuse.dao.PersonDao;

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import org.appfuse.service.impl.PersonManagerImpl;

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import org.jmock.Mock;

import org.springframework.orm.ObjectRetrievalFailureException;

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private final String personId = "1";

private PersonManager personManager = new PersonManagerImpl();

private Mock personDao = null;

private Person person = null;

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private Person person;

private PersonManager mgr = null;

private Log log = LogFactory.getLog(PersonManagerTest.class);

protected void setUp() {

mgr = (PersonManager) ctx.getBean("personManager");

protected void setUp() throws Exception{

super.setUp();

personDao = new Mock(PersonDao.class);

personManager.setPersonDao((PersonDao) personDao.proxy());

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mgr = null;

super.tearDown();

personManager = null;

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public static void main(String[] args) {

junit.textui.TestRunner.run(PersonManagerTest.class);

}

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