master/pt/examples/bean-validation-design-by-contract.html - tomee-site-pub - Git at Google

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     <div id="main-block" class="container main-block">
         <div class="row title">
           <div class="col-md-12">
             <div class='page-header'>

               <h1>Design Bean Validation por Contrato</h1>
             </div>
           </div>
         </div>
         <div class="row">

             <div class="col-md-12">
                 <div class="sect1">
 <h2 id="_bean_validation_design_por_contrato">Bean Validation - Design por Contrato</h2>
 <div class="sectionbody">
 <div class="paragraph">
 <p>O Bean Validation (também conhecida como JSR 303) contém um apêndice opcional que lida com validação de método.</p>
 </div>
 <div class="paragraph">
 <p>Algumas implementações desta JSR implementam este apêndice (Apache bval,
 Hibernate validator por exemplo).</p>
 </div>
 <div class="paragraph">
 <p>O OpenEJB fornece um interceptador na qual permite você usar esta feature para
 fazer o design por contrato.</p>
 </div>
 </div>
 </div>
 <div class="sect1">
 <h2 id="_design_por_contrato">Design por contrato</h2>
 <div class="sectionbody">
 <div class="paragraph">
 <p>O objetivo é ser capaz de configurar com um grão mais fino seu contrato. No
 exemplo você pode especificar os centímetros mínimos de um homem do esporte que deve pular
 no salto com vara:</p>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre class="highlight"><code class="language-java" data-lang="java">@Local
 public interface PoleVaultingManager {
     int points(@Min(120) int centimeters);
 }</code></pre>
 </div>
 </div>
 </div>
 </div>
 <div class="sect1">
 <h2 id="_usando">Usando</h2>
 <div class="sectionbody">
 <div class="paragraph">
 <p>TomEE e OpenEJB não fornecem mais
 <code>BeanValidationAppendixInterceptor</code> desde que o Bean Validation 1.1 o faz
 (com um uso ligeiramente diferente, mas exatamente o mesmo recurso).</p>
 </div>
 <div class="paragraph">
 <p>Então basicamente você não necessita configurar qualquer coisa para usar isto.</p>
 </div>
 <div class="paragraph">
 <p>Se um paramentro não é validado uma exceção é lançada, é um
 EJBException que envolve um <code>ConstraintViolationException</code>:</p>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre class="highlight"><code class="language-java" data-lang="java">try {
     gamesManager.addSportMan("I lose", "EN");
     fail("no space should be in names");
 } catch (EJBException wrappingException) {
     assertTrue(wrappingException.getCause() instanceof ConstraintViolationException);
     ConstraintViolationException exception = ConstraintViolationException.class.cast(wrappingException.getCausedByException());
     assertEquals(1, exception.getConstraintViolations().size());
 }</code></pre>
 </div>
 </div>
 </div>
 </div>
 <div class="sect1">
 <h2 id="_exemplo">Exemplo</h2>
 <div class="sectionbody">
 <div class="sect2">
 <h3 id="_olympicgamesmanager">OlympicGamesManager</h3>
 <div class="listingblock">
 <div class="content">
 <pre class="highlight"><code class="language-java" data-lang="java">package org.superbiz.designbycontract;

 import javax.ejb.Stateless;
 import javax.validation.constraints.NotNull;
 import javax.validation.constraints.Pattern;
 import javax.validation.constraints.Size;

 @Stateless
 public class OlympicGamesManager {
     public String addSportMan(@Pattern(regexp = "^[A-Za-z]+$") String name, @Size(min = 2, max = 4) String country) {
         if (country.equals("USA")) {
             return null;
         }
         return new StringBuilder(name).append(" [").append(country).append("]").toString();
     }
 }</code></pre>
 </div>
 </div>
 </div>
 <div class="sect2">
 <h3 id="_polevaultingmanager">PoleVaultingManager</h3>
 <div class="listingblock">
 <div class="content">
 <pre class="highlight"><code class="language-java" data-lang="java">package org.superbiz.designbycontract;

 import javax.ejb.Local;
 import javax.validation.constraints.Min;

 @Local
 public interface PoleVaultingManager {
     int points(@Min(120) int centimeters);
 }</code></pre>
 </div>
 </div>
 </div>
 <div class="sect2">
 <h3 id="_polevaultingmanagerbean">PoleVaultingManagerBean</h3>
 <div class="listingblock">
 <div class="content">
 <pre class="highlight"><code class="language-java" data-lang="java">package org.superbiz.designbycontract;

 import javax.ejb.Stateless;

 @Stateless
 public class PoleVaultingManagerBean implements PoleVaultingManager {
     @Override
     public int points(int centimeters) {
         return centimeters - 120;
     }
 }</code></pre>
 </div>
 </div>
 </div>
 <div class="sect2">
 <h3 id="_olympicgamestest">OlympicGamesTest</h3>
 <div class="listingblock">
 <div class="content">
 <pre class="highlight"><code class="language-java" data-lang="java">public class OlympicGamesTest {
     private static Context context;

     @EJB
     private OlympicGamesManager gamesManager;

     @EJB
     private PoleVaultingManager poleVaultingManager;

     @BeforeClass
     public static void start() {
         Properties properties = new Properties();
         properties.setProperty(BeanContext.USER_INTERCEPTOR_KEY, BeanValidationAppendixInterceptor.class.getName());
         context = EJBContainer.createEJBContainer(properties).getContext();
     }

     @Before
     public void inject() throws Exception {
         context.bind("inject", this);
     }

     @AfterClass
     public static void stop() throws Exception {
         if (context != null) {
             context.close();
         }
     }

     @Test
     public void sportMenOk() throws Exception {
         assertEquals("IWin [FR]", gamesManager.addSportMan("IWin", "FR"));
     }

     @Test
     public void sportMenKoBecauseOfName() throws Exception {
         try {
             gamesManager.addSportMan("I lose", "EN");
             fail("no space should be in names");
         } catch (EJBException wrappingException) {
             assertTrue(wrappingException.getCause() instanceof ConstraintViolationException);
             ConstraintViolationException exception = ConstraintViolationException.class.cast(wrappingException.getCausedByException());
             assertEquals(1, exception.getConstraintViolations().size());
         }
     }

     @Test
     public void sportMenKoBecauseOfCountry() throws Exception {
         try {
             gamesManager.addSportMan("ILoseTwo", "TOO-LONG");
             fail("country should be between 2 and 4 characters");
         } catch (EJBException wrappingException) {
             assertTrue(wrappingException.getCause() instanceof ConstraintViolationException);
             ConstraintViolationException exception = ConstraintViolationException.class.cast(wrappingException.getCausedByException());
             assertEquals(1, exception.getConstraintViolations().size());
         }
     }

     @Test
     public void polVaulting() throws Exception {
         assertEquals(100, poleVaultingManager.points(220));
     }

     @Test
     public void tooShortPolVaulting() throws Exception {
         try {
             poleVaultingManager.points(119);
             fail("the jump is too short");
         } catch (EJBException wrappingException) {
             assertTrue(wrappingException.getCause() instanceof ConstraintViolationException);
             ConstraintViolationException exception = ConstraintViolationException.class.cast(wrappingException.getCausedByException());
             assertEquals(1, exception.getConstraintViolations().size());
         }
     }
 }</code></pre>
 </div>
 </div>
 </div>
 </div>
 </div>
 <div class="sect1">
 <h2 id="_executando">Executando</h2>
 <div class="sectionbody">
 <div class="listingblock">
 <div class="content">
 <pre class="highlight"><code class="language-console" data-lang="console">-------------------------------------------------------
  T E S T S
 -------------------------------------------------------
 Running OlympicGamesTest
 Apache OpenEJB 4.0.0-beta-1    build: 20111002-04:06
 http://tomee.apache.org/
 INFO - openejb.home = /Users/dblevins/examples/bean-validation-design-by-contract
 INFO - openejb.base = /Users/dblevins/examples/bean-validation-design-by-contract
 INFO - Using 'javax.ejb.embeddable.EJBContainer=true'
 INFO - Configuring Service(id=Default Security Service, type=SecurityService, provider-id=Default Security Service)
 INFO - Configuring Service(id=Default Transaction Manager, type=TransactionManager, provider-id=Default Transaction Manager)
 INFO - Found EjbModule in classpath: /Users/dblevins/examples/bean-validation-design-by-contract/target/classes
 INFO - Beginning load: /Users/dblevins/examples/bean-validation-design-by-contract/target/classes
 INFO - Configuring enterprise application: /Users/dblevins/examples/bean-validation-design-by-contract
 INFO - Configuring Service(id=Default Stateless Container, type=Container, provider-id=Default Stateless Container)
 INFO - Auto-creating a container for bean PoleVaultingManagerBean: Container(type=STATELESS, id=Default Stateless Container)
 INFO - Configuring Service(id=Default Managed Container, type=Container, provider-id=Default Managed Container)
 INFO - Auto-creating a container for bean OlympicGamesTest: Container(type=MANAGED, id=Default Managed Container)
 INFO - Enterprise application "/Users/dblevins/examples/bean-validation-design-by-contract" loaded.
 INFO - Assembling app: /Users/dblevins/examples/bean-validation-design-by-contract
 INFO - Jndi(name="java:global/bean-validation-design-by-contract/PoleVaultingManagerBean!org.superbiz.designbycontract.PoleVaultingManager")
 INFO - Jndi(name="java:global/bean-validation-design-by-contract/PoleVaultingManagerBean")
 INFO - Jndi(name="java:global/bean-validation-design-by-contract/OlympicGamesManager!org.superbiz.designbycontract.OlympicGamesManager")
 INFO - Jndi(name="java:global/bean-validation-design-by-contract/OlympicGamesManager")
 INFO - Jndi(name="java:global/EjbModule236054577/OlympicGamesTest!OlympicGamesTest")
 INFO - Jndi(name="java:global/EjbModule236054577/OlympicGamesTest")
 INFO - Created Ejb(deployment-id=OlympicGamesManager, ejb-name=OlympicGamesManager, container=Default Stateless Container)
 INFO - Created Ejb(deployment-id=PoleVaultingManagerBean, ejb-name=PoleVaultingManagerBean, container=Default Stateless Container)
 INFO - Created Ejb(deployment-id=OlympicGamesTest, ejb-name=OlympicGamesTest, container=Default Managed Container)
 INFO - Started Ejb(deployment-id=OlympicGamesManager, ejb-name=OlympicGamesManager, container=Default Stateless Container)
 INFO - Started Ejb(deployment-id=PoleVaultingManagerBean, ejb-name=PoleVaultingManagerBean, container=Default Stateless Container)
 INFO - Started Ejb(deployment-id=OlympicGamesTest, ejb-name=OlympicGamesTest, container=Default Managed Container)
 INFO - Deployed Application(path=/Users/dblevins/examples/bean-validation-design-by-contract)
 Tests run: 5, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.245 sec

 Results :

 Tests run: 5, Failures: 0, Errors: 0, Skipped: 0</code></pre>
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	<div id="main-block" class="container main-block">
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	<div class="col-md-12">
	<div class='page-header'>

	<h1>Design Bean Validation por Contrato</h1>
	</div>
	</div>
	</div>
	<div class="row">

	<div class="col-md-12">
	<div class="sect1">
	<h2 id="_bean_validation_design_por_contrato">Bean Validation - Design por Contrato</h2>
	<div class="sectionbody">
	<div class="paragraph">
	<p>O Bean Validation (também conhecida como JSR 303) contém um apêndice opcional que lida com validação de método.</p>
	</div>
	<div class="paragraph">
	<p>Algumas implementações desta JSR implementam este apêndice (Apache bval,
	Hibernate validator por exemplo).</p>
	</div>
	<div class="paragraph">
	<p>O OpenEJB fornece um interceptador na qual permite você usar esta feature para
	fazer o design por contrato.</p>
	</div>
	</div>
	</div>
	<div class="sect1">
	<h2 id="_design_por_contrato">Design por contrato</h2>
	<div class="sectionbody">
	<div class="paragraph">
	<p>O objetivo é ser capaz de configurar com um grão mais fino seu contrato. No
	exemplo você pode especificar os centímetros mínimos de um homem do esporte que deve pular
	no salto com vara:</p>
	</div>
	<div class="listingblock">
	<div class="content">
	<pre class="highlight"><code class="language-java" data-lang="java">@Local
	public interface PoleVaultingManager {
	int points(@Min(120) int centimeters);
	}</code></pre>
	</div>
	</div>
	</div>
	</div>
	<div class="sect1">
	<h2 id="_usando">Usando</h2>
	<div class="sectionbody">
	<div class="paragraph">
	<p>TomEE e OpenEJB não fornecem mais
	<code>BeanValidationAppendixInterceptor</code> desde que o Bean Validation 1.1 o faz
	(com um uso ligeiramente diferente, mas exatamente o mesmo recurso).</p>
	</div>
	<div class="paragraph">
	<p>Então basicamente você não necessita configurar qualquer coisa para usar isto.</p>
	</div>
	<div class="paragraph">
	<p>Se um paramentro não é validado uma exceção é lançada, é um
	EJBException que envolve um <code>ConstraintViolationException</code>:</p>
	</div>
	<div class="listingblock">
	<div class="content">
	<pre class="highlight"><code class="language-java" data-lang="java">try {
	gamesManager.addSportMan("I lose", "EN");
	fail("no space should be in names");
	} catch (EJBException wrappingException) {
	assertTrue(wrappingException.getCause() instanceof ConstraintViolationException);
	ConstraintViolationException exception = ConstraintViolationException.class.cast(wrappingException.getCausedByException());
	assertEquals(1, exception.getConstraintViolations().size());
	}</code></pre>
	</div>
	</div>
	</div>
	</div>
	<div class="sect1">
	<h2 id="_exemplo">Exemplo</h2>
	<div class="sectionbody">
	<div class="sect2">
	<h3 id="_olympicgamesmanager">OlympicGamesManager</h3>
	<div class="listingblock">
	<div class="content">
	<pre class="highlight"><code class="language-java" data-lang="java">package org.superbiz.designbycontract;

	import javax.ejb.Stateless;
	import javax.validation.constraints.NotNull;
	import javax.validation.constraints.Pattern;
	import javax.validation.constraints.Size;

	@Stateless
	public class OlympicGamesManager {
	public String addSportMan(@Pattern(regexp = "^[A-Za-z]+$") String name, @Size(min = 2, max = 4) String country) {
	if (country.equals("USA")) {
	return null;
	}
	return new StringBuilder(name).append(" [").append(country).append("]").toString();
	}
	}</code></pre>
	</div>
	</div>
	</div>
	<div class="sect2">
	<h3 id="_polevaultingmanager">PoleVaultingManager</h3>
	<div class="listingblock">
	<div class="content">
	<pre class="highlight"><code class="language-java" data-lang="java">package org.superbiz.designbycontract;

	import javax.ejb.Local;
	import javax.validation.constraints.Min;

	@Local
	public interface PoleVaultingManager {
	int points(@Min(120) int centimeters);
	}</code></pre>
	</div>
	</div>
	</div>
	<div class="sect2">
	<h3 id="_polevaultingmanagerbean">PoleVaultingManagerBean</h3>
	<div class="listingblock">
	<div class="content">
	<pre class="highlight"><code class="language-java" data-lang="java">package org.superbiz.designbycontract;

	import javax.ejb.Stateless;

	@Stateless
	public class PoleVaultingManagerBean implements PoleVaultingManager {
	@Override
	public int points(int centimeters) {
	return centimeters - 120;
	}
	}</code></pre>
	</div>
	</div>
	</div>
	<div class="sect2">
	<h3 id="_olympicgamestest">OlympicGamesTest</h3>
	<div class="listingblock">
	<div class="content">
	<pre class="highlight"><code class="language-java" data-lang="java">public class OlympicGamesTest {
	private static Context context;

	@EJB
	private OlympicGamesManager gamesManager;

	@EJB
	private PoleVaultingManager poleVaultingManager;

	@BeforeClass
	public static void start() {
	Properties properties = new Properties();
	properties.setProperty(BeanContext.USER_INTERCEPTOR_KEY, BeanValidationAppendixInterceptor.class.getName());
	context = EJBContainer.createEJBContainer(properties).getContext();
	}

	@Before
	public void inject() throws Exception {
	context.bind("inject", this);
	}

	@AfterClass
	public static void stop() throws Exception {
	if (context != null) {
	context.close();
	}
	}

	@Test
	public void sportMenOk() throws Exception {
	assertEquals("IWin [FR]", gamesManager.addSportMan("IWin", "FR"));
	}

	@Test
	public void sportMenKoBecauseOfName() throws Exception {
	try {
	gamesManager.addSportMan("I lose", "EN");
	fail("no space should be in names");
	} catch (EJBException wrappingException) {
	assertTrue(wrappingException.getCause() instanceof ConstraintViolationException);
	ConstraintViolationException exception = ConstraintViolationException.class.cast(wrappingException.getCausedByException());
	assertEquals(1, exception.getConstraintViolations().size());
	}
	}

	@Test
	public void sportMenKoBecauseOfCountry() throws Exception {
	try {
	gamesManager.addSportMan("ILoseTwo", "TOO-LONG");
	fail("country should be between 2 and 4 characters");
	} catch (EJBException wrappingException) {
	assertTrue(wrappingException.getCause() instanceof ConstraintViolationException);
	ConstraintViolationException exception = ConstraintViolationException.class.cast(wrappingException.getCausedByException());
	assertEquals(1, exception.getConstraintViolations().size());
	}
	}

	@Test
	public void polVaulting() throws Exception {
	assertEquals(100, poleVaultingManager.points(220));
	}

	@Test
	public void tooShortPolVaulting() throws Exception {
	try {
	poleVaultingManager.points(119);
	fail("the jump is too short");
	} catch (EJBException wrappingException) {
	assertTrue(wrappingException.getCause() instanceof ConstraintViolationException);
	ConstraintViolationException exception = ConstraintViolationException.class.cast(wrappingException.getCausedByException());
	assertEquals(1, exception.getConstraintViolations().size());
	}
	}
	}</code></pre>
	</div>
	</div>
	</div>
	</div>
	</div>
	<div class="sect1">
	<h2 id="_executando">Executando</h2>
	<div class="sectionbody">
	<div class="listingblock">
	<div class="content">
	<pre class="highlight"><code class="language-console" data-lang="console">-------------------------------------------------------
	T E S T S
	-------------------------------------------------------
	Running OlympicGamesTest
	Apache OpenEJB 4.0.0-beta-1 build: 20111002-04:06
	http://tomee.apache.org/
	INFO - openejb.home = /Users/dblevins/examples/bean-validation-design-by-contract
	INFO - openejb.base = /Users/dblevins/examples/bean-validation-design-by-contract
	INFO - Using 'javax.ejb.embeddable.EJBContainer=true'
	INFO - Configuring Service(id=Default Security Service, type=SecurityService, provider-id=Default Security Service)
	INFO - Configuring Service(id=Default Transaction Manager, type=TransactionManager, provider-id=Default Transaction Manager)
	INFO - Found EjbModule in classpath: /Users/dblevins/examples/bean-validation-design-by-contract/target/classes
	INFO - Beginning load: /Users/dblevins/examples/bean-validation-design-by-contract/target/classes
	INFO - Configuring enterprise application: /Users/dblevins/examples/bean-validation-design-by-contract
	INFO - Configuring Service(id=Default Stateless Container, type=Container, provider-id=Default Stateless Container)
	INFO - Auto-creating a container for bean PoleVaultingManagerBean: Container(type=STATELESS, id=Default Stateless Container)
	INFO - Configuring Service(id=Default Managed Container, type=Container, provider-id=Default Managed Container)
	INFO - Auto-creating a container for bean OlympicGamesTest: Container(type=MANAGED, id=Default Managed Container)
	INFO - Enterprise application "/Users/dblevins/examples/bean-validation-design-by-contract" loaded.
	INFO - Assembling app: /Users/dblevins/examples/bean-validation-design-by-contract
	INFO - Jndi(name="java:global/bean-validation-design-by-contract/PoleVaultingManagerBean!org.superbiz.designbycontract.PoleVaultingManager")
	INFO - Jndi(name="java:global/bean-validation-design-by-contract/PoleVaultingManagerBean")
	INFO - Jndi(name="java:global/bean-validation-design-by-contract/OlympicGamesManager!org.superbiz.designbycontract.OlympicGamesManager")
	INFO - Jndi(name="java:global/bean-validation-design-by-contract/OlympicGamesManager")
	INFO - Jndi(name="java:global/EjbModule236054577/OlympicGamesTest!OlympicGamesTest")
	INFO - Jndi(name="java:global/EjbModule236054577/OlympicGamesTest")
	INFO - Created Ejb(deployment-id=OlympicGamesManager, ejb-name=OlympicGamesManager, container=Default Stateless Container)
	INFO - Created Ejb(deployment-id=PoleVaultingManagerBean, ejb-name=PoleVaultingManagerBean, container=Default Stateless Container)
	INFO - Created Ejb(deployment-id=OlympicGamesTest, ejb-name=OlympicGamesTest, container=Default Managed Container)
	INFO - Started Ejb(deployment-id=OlympicGamesManager, ejb-name=OlympicGamesManager, container=Default Stateless Container)
	INFO - Started Ejb(deployment-id=PoleVaultingManagerBean, ejb-name=PoleVaultingManagerBean, container=Default Stateless Container)
	INFO - Started Ejb(deployment-id=OlympicGamesTest, ejb-name=OlympicGamesTest, container=Default Managed Container)
	INFO - Deployed Application(path=/Users/dblevins/examples/bean-validation-design-by-contract)
	Tests run: 5, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.245 sec

	Results :

	Tests run: 5, Failures: 0, Errors: 0, Skipped: 0</code></pre>
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