Initial commit for "Spring Custom Annotation with Dynamic Qualifier"

article.
2015-10-21 00:50:44 +07:00
parent 6aec841b73
commit 32ea1e0a1e
10 changed files with 394 additions and 0 deletions
@@ -0,0 +1,40 @@
+package org.baeldung.customannotation;
+
+import java.io.Serializable;
+
+public class Account implements Serializable {
+
+    private static final long serialVersionUID = 7857541629844398625L;
+
+    private Long id;
+    private String email;
+    private Person person;
+
+    public Account() {
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    public Person getPerson() {
+        return person;
+    }
+
+    public void setPerson(Person person) {
+        this.person = person;
+    }
+
+}
@@ -0,0 +1,17 @@
+package org.baeldung.customannotation;
+
+import org.springframework.stereotype.Repository;
+
+@Repository
+public class BeanWithGenericDAO {
+
+    @DataAccess(entity=Person.class)
+    private GenericDAO<Person> personGenericDAO;
+
+    public BeanWithGenericDAO() {}
+
+    public GenericDAO<Person> getPersonGenericDAO() {
+        return personGenericDAO;
+    }
+
+}
@@ -0,0 +1,57 @@
+package org.baeldung.customannotation;
+
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.hamcrest.CoreMatchers.is;
+import static org.hamcrest.CoreMatchers.not;
+import static org.hamcrest.CoreMatchers.notNullValue;
+import static org.hamcrest.CoreMatchers.sameInstance;
+import static org.junit.Assert.assertThat;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(classes = { CustomAnnotationConfiguration.class })
+public class DataAccessAnnotationTest {
+
+    @DataAccess(entity = Person.class)
+    private GenericDAO<Person> personGenericDAO;
+    @DataAccess(entity = Account.class)
+    private GenericDAO<Account> accountGenericDAO;
+    @DataAccess(entity = Person.class)
+    private GenericDAO<Person> anotherPersonGenericDAO;
+
+    @Test
+    public void whenGenericDAOInitialized_thenNotNull() {
+        assertThat(personGenericDAO, is(notNullValue()));
+        assertThat(accountGenericDAO, is(notNullValue()));
+    }
+
+    @Test
+    public void whenGenericDAOInjected_thenItIsSingleton() {
+        assertThat(personGenericDAO, not(sameInstance(accountGenericDAO)));
+        assertThat(personGenericDAO, not(equalTo(accountGenericDAO)));
+
+        assertThat(personGenericDAO, sameInstance(anotherPersonGenericDAO));
+    }
+
+    @Test
+    public void whenFindAll_thenMessagesIsCorrect() {
+        personGenericDAO.findAll();
+        assertThat(personGenericDAO.getMessage(), is("Would create findAll query from Person"));
+
+        accountGenericDAO.findAll();
+        assertThat(accountGenericDAO.getMessage(), is("Would create findAll query from Account"));
+    }
+
+    @Test
+    public void whenPersist_thenMakeSureThatMessagesIsCorrect() {
+        personGenericDAO.persist(new Person());
+        assertThat(personGenericDAO.getMessage(), is("Would create persist query from Person"));
+
+        accountGenericDAO.persist(new Account());
+        assertThat(accountGenericDAO.getMessage(), is("Would create persist query from Account"));
+    }
+}
@@ -0,0 +1,53 @@
+package org.baeldung.customannotation;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.hamcrest.CoreMatchers.notNullValue;
+import static org.junit.Assert.assertThat;
+
+import java.lang.reflect.Type;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(classes = { CustomAnnotationConfiguration.class })
+public class DataAccessFieldCallbackTest {
+
+    @Autowired
+    private ConfigurableListableBeanFactory configurableListableBeanFactory;
+
+    @Autowired
+    private BeanWithGenericDAO beanWithGenericDAO;
+
+    @Rule
+    public ExpectedException ex = ExpectedException.none();
+
+    @Test
+    public void whenObjectCreated_thenObjectCreationIsSuccessful() {
+        final DataAccessFieldCallback dataAccessFieldCallback = new DataAccessFieldCallback(configurableListableBeanFactory, beanWithGenericDAO);
+        assertThat(dataAccessFieldCallback, is(notNullValue()));
+    }
+
+    @Test
+    public void whenMethodGenericTypeIsValidCalled_thenReturnCorrectValue()
+            throws NoSuchFieldException, SecurityException {
+        final DataAccessFieldCallback callback = new DataAccessFieldCallback(configurableListableBeanFactory, beanWithGenericDAO);
+        final Type fieldType = BeanWithGenericDAO.class.getDeclaredField("personGenericDAO").getGenericType();
+        final boolean result = callback.genericTypeIsValid(Person.class, fieldType);
+        assertThat(result, is(true));
+    }
+
+    @Test
+    public void whenMethodGetBeanInstanceCalled_thenReturnCorrectInstance() {
+        final DataAccessFieldCallback callback = new DataAccessFieldCallback(configurableListableBeanFactory, beanWithGenericDAO);
+        final Object result = callback.getBeanInstance("personGenericDAO", GenericDAO.class, Person.class);
+        assertThat((result instanceof GenericDAO), is(true));
+    }
+}
@@ -0,0 +1,31 @@
+package org.baeldung.customannotation;
+
+import java.io.Serializable;
+
+public class Person implements Serializable {
+
+    private static final long serialVersionUID = 9005331414216374586L;
+
+    private Long id;
+    private String name;
+
+    public Person() {
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+}