javax.persistence.EntityManager.remove()方法的使用及代码示例

x33g5p2x  于2022-01-18 转载在 其他  
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本文整理了Java中javax.persistence.EntityManager.remove()方法的一些代码示例，展示了EntityManager.remove()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。EntityManager.remove()方法的具体详情如下：
包路径：javax.persistence.EntityManager
类名称：EntityManager
方法名：remove

EntityManager.remove介绍

[英]Remove the entity instance.
[中]删除实体实例。

代码示例

代码示例来源：origin: spring-projects/spring-integration-samples

@Transactional
public void remove() {
  if (this.entityManager == null) {
    this.entityManager = entityManager();
  }
  if (this.entityManager.contains(this)) {
    this.entityManager.remove(this);
  } else {
    LoanShark attached = this.entityManager.find(this.getClass(), this.id);
    this.entityManager.remove(attached);
  }
}

代码示例来源：origin: hibernate/hibernate-orm

@Test
@Priority(10)
public void initData() {
  EntityManager em = getEntityManager();
  // Revision 1 - add
  em.getTransaction().begin();
  ObjectUserTypeEntity entity = new ObjectUserTypeEntity( "builtInType1", "stringUserType1" );
  em.persist( entity );
  em.getTransaction().commit();
  id = entity.getId();
  // Revision 2 - modify
  em.getTransaction().begin();
  entity = em.find( ObjectUserTypeEntity.class, entity.getId() );
  entity.setUserType( 2 );
  entity = em.merge( entity );
  em.getTransaction().commit();
  // Revision 3 - remove
  em.getTransaction().begin();
  entity = em.find( ObjectUserTypeEntity.class, entity.getId() );
  em.remove( entity );
  em.getTransaction().commit();
  em.close();
}

代码示例来源：origin: Impetus/Kundera

public void deleteCounter()
{
  EntityManager em = emf.createEntityManager();
  Counters counters = new Counters();
  counters = em.find(Counters.class, id3);
  Assert.assertNotNull(counters);
  Assert.assertNotNull(counters.getCounter());
  em.remove(counters);
  EntityManager em1 = emf.createEntityManager();
  counters = em1.find(Counters.class, id3);
  Assert.assertNull(counters);
  em.close();
}

代码示例来源：origin: Impetus/Kundera

public void testDelete(boolean useSameEm)
{
  EntityManager em = emf.createEntityManager();
  StudentDoublePrimitive studentMax = em.find(StudentDoublePrimitive.class, maxValue);
  Assert.assertNotNull(studentMax);
  Assert.assertEquals(getMaxValue(short.class), studentMax.getAge());
  Assert.assertEquals("Kuldeep", studentMax.getName());
  em.remove(studentMax);
  if (!useSameEm)
  {
    em.close();
    em = emf.createEntityManager();
  }
  studentMax = em.find(StudentDoublePrimitive.class, maxValue);
  Assert.assertNull(studentMax);
  em.close();
}

代码示例来源：origin: mitreid-connect/OpenID-Connect-Java-Spring-Server

@Override
public void remove(AuthorizationCodeEntity authorizationCodeEntity) {
  AuthorizationCodeEntity found = manager.find(AuthorizationCodeEntity.class, authorizationCodeEntity.getId());
  if (found != null) {
    manager.remove(found);
  }
}

代码示例来源：origin: hibernate/hibernate-orm

@Test
@Priority(10)
public void initData() {
  EntityManager entityManager = getEntityManager();
  try {
    // Revision 1 - insertion
    Professor professor = new Professor();
    Student student = new Student();
    professor.getStudents().add( student );
    student.getProfessors().add( professor );
    entityManager.getTransaction().begin();
    entityManager.persist( professor );
    entityManager.persist( student );
    entityManager.getTransaction().commit();
    entityManager.clear();
    // Revision 2 - deletion
    entityManager.getTransaction().begin();
    professor = entityManager.find( Professor.class, professor.getId() );
    student = entityManager.find( Student.class, student.getId() );
    entityManager.remove( professor );
    entityManager.remove( student );
    // the issue is student.getProfessors() throws a LazyInitializationException.
    entityManager.getTransaction().commit();
  }
  finally {
    entityManager.close();
  }
}

代码示例来源：origin: Impetus/Kundera

public void testDelete(boolean useSameEm)
{
  EntityManager em = emf.createEntityManager();
  StudentDoubleWrapper studentMax = em.find(StudentDoubleWrapper.class, maxValue);
  Assert.assertNotNull(studentMax);
  Assert.assertEquals(getMaxValue(short.class), studentMax.getAge());
  Assert.assertEquals("Kuldeep", studentMax.getName());
  em.remove(studentMax);
  if (!useSameEm)
  {
    em.close();
    em = emf.createEntityManager();
  }
  studentMax = em.find(StudentDoubleWrapper.class, maxValue);
  Assert.assertNull(studentMax);
  em.close();
}

代码示例来源：origin: mitreid-connect/OpenID-Connect-Java-Spring-Server

@Override
@Transactional(value="defaultTransactionManager")
public void remove(ApprovedSite approvedSite) {
  ApprovedSite found = manager.find(ApprovedSite.class, approvedSite.getId());
  if (found != null) {
    manager.remove(found);
  } else {
    throw new IllegalArgumentException();
  }
}

代码示例来源：origin: hibernate/hibernate-orm

@Test
@Priority(10)
public void initData() {
  EntityManager entityManager = getOrCreateEntityManager();
  try {
    // Revision 1
    SimpleEntity se = new SimpleEntity();
    se.setData( "data" );
    entityManager.getTransaction().begin();
    entityManager.persist( se );
    entityManager.getTransaction().commit();
    entityManager.clear();
    entityId = se.getId();
    // Revision 2
    entityManager.getTransaction().begin();
    se = entityManager.find( SimpleEntity.class, se.getId() );
    se.setData( "data2" );
    entityManager.merge( se );
    entityManager.getTransaction().commit();
    // Revision 3
    entityManager.getTransaction().begin();
    se = entityManager.find( SimpleEntity.class, se.getId() );
    entityManager.remove( se );
    entityManager.getTransaction().commit();
  }
  finally {
    entityManager.close();
  }
}

代码示例来源：origin: Impetus/Kundera

public void testDelete(boolean useSameEm)
{
  EntityManager em = emf.createEntityManager();
  StudentLongPrimitive studentMax = em.find(StudentLongPrimitive.class, getMaxValue(long.class));
  Assert.assertNotNull(studentMax);
  Assert.assertEquals(getMaxValue(short.class), studentMax.getAge());
  Assert.assertEquals("Kuldeep", studentMax.getName());
  em.remove(studentMax);
  if (!useSameEm)
  {
    em.close();
    em = emf.createEntityManager();
  }
  studentMax = em.find(StudentLongPrimitive.class, getMaxValue(long.class));
  Assert.assertNull(studentMax);
  em.close();
}

代码示例来源：origin: mitreid-connect/OpenID-Connect-Java-Spring-Server

@Override
@Transactional(value="defaultTransactionManager")
public void remove(BlacklistedSite blacklistedSite) {
  BlacklistedSite found = manager.find(BlacklistedSite.class, blacklistedSite.getId());
  if (found != null) {
    manager.remove(found);
  } else {
    throw new IllegalArgumentException();
  }
}

代码示例来源：origin: hibernate/hibernate-orm

@Test
public void testConverterIsNotIncorrectlyApplied() {
  Widget w = new Widget();
  w.setId( 1 );
  w.setDimension( new BigDecimal( "1.0" ) );
  w.setCost( new Money( "2.0" ) );
  EntityManager em = entityManagerFactory().createEntityManager();
  em.getTransaction().begin();
  em.persist( w );
  em.getTransaction().commit();
  em.close();		
  em = entityManagerFactory().createEntityManager();
  em.getTransaction().begin();
  Widget recorded = em.find( Widget.class, 1 );
  assertEquals( 1, recorded.getId() );
  em.remove(recorded);
  em.getTransaction().commit();
  em.close();
}

代码示例来源：origin: Impetus/Kundera

public void testDelete(boolean useSameEm)
{
  EntityManager em = emf.createEntityManager();
  StudentCouchDBCharacter studentMax = em.find(StudentCouchDBCharacter.class, getMaxValue(Character.class));
  Assert.assertNotNull(studentMax);
  Assert.assertEquals(getMaxValue(short.class), studentMax.getAge());
  Assert.assertEquals("Kuldeep", studentMax.getName());
  em.remove(studentMax);
  if (!useSameEm)
  {
    em.close();
    em = emf.createEntityManager();
  }
  studentMax = em.find(StudentCouchDBCharacter.class, getMaxValue(Character.class));
  Assert.assertNull(studentMax);
  em.close();
}

代码示例来源：origin: mitreid-connect/OpenID-Connect-Java-Spring-Server

@Override
@Transactional(value="defaultTransactionManager")
public void remove(WhitelistedSite whitelistedSite) {
  WhitelistedSite found = manager.find(WhitelistedSite.class, whitelistedSite.getId());
  if (found != null) {
    manager.remove(found);
  } else {
    throw new IllegalArgumentException();
  }
}

代码示例来源：origin: hibernate/hibernate-orm

entity = em.find( PropertyNotUpdatableEntity.class, entity.getId() );
entity.setData( "modified data" );
entity.setConstantData1( null );
em.getTransaction().commit();
em.close();
entity = em.find( PropertyNotUpdatableEntity.class, entity.getId() );
entity.setData( "another modified data" );
entity.setConstantData2( "invalid data" );
em.remove( entity );
em.getTransaction().commit();

代码示例来源：origin: Impetus/Kundera

public void testDelete(boolean useSameEm)
{
  EntityManager em = emf.createEntityManager();
  StudentMongoShortPrimitive studentMax = em.find(StudentMongoShortPrimitive.class, getMaxValue(Short.class));
  Assert.assertNotNull(studentMax);
  Assert.assertEquals(getMaxValue(short.class), studentMax.getAge());
  Assert.assertEquals("Kuldeep", studentMax.getName());
  em.remove(studentMax);
  if (!useSameEm)
  {
    em.close();
    em = emf.createEntityManager();
  }
  studentMax = em.find(StudentMongoShortPrimitive.class, getMaxValue(Short.class));
  Assert.assertNull(studentMax);
  em.close();
}

代码示例来源：origin: BroadleafCommerce/BroadleafCommerce

public void delete(Referenced securePayment) {
  if (!em.contains(securePayment)) {
    securePayment = em.find(securePayment.getClass(), securePayment.getId());
  }
  em.remove(securePayment);
}

代码示例来源：origin: hibernate/hibernate-orm

@Test
@Priority(10)
public void initData() throws Exception {
  TestingJtaPlatformImpl.INSTANCE.getTransactionManager().begin();
  EntityManager entityManager = getEntityManager();
  try {
    TestEntity entity = new TestEntity( ENTITY_ID, "Fab" );
    entityManager.persist( entity );
    OtherTestEntity other = new OtherTestEntity( OTHER_ENTITY_ID, "other" );
    entity.addOther( other );
    entityManager.persist( entity );
    entityManager.persist( other );
  }
  finally {
    entityManager.close();
    TestingJtaPlatformImpl.tryCommit();
  }
  TestingJtaPlatformImpl.INSTANCE.getTransactionManager().begin();
  entityManager = getEntityManager();
  try {
    TestEntity entity = entityManager.find( TestEntity.class, ENTITY_ID );
    OtherTestEntity other = entityManager.find( OtherTestEntity.class, OTHER_ENTITY_ID );
    entityManager.remove( entity );
    entityManager.remove( other );
  }
  finally {
    entityManager.close();
    TestingJtaPlatformImpl.tryCommit();
  }
}

代码示例来源：origin: Impetus/Kundera

public void testDelete(boolean useSameEm)
{
  EntityManager em = emf.createEntityManager();
  StudentHBaseDate studentMax = em.find(StudentHBaseDate.class, getMaxValue(Date.class));
  Assert.assertNotNull(studentMax);
  Assert.assertEquals(getMaxValue(short.class), studentMax.getAge());
  Assert.assertEquals("Kuldeep", studentMax.getName());
  em.remove(studentMax);
  if (!useSameEm)
  {
    em.close();
    em = emf.createEntityManager();
  }
  studentMax = em.find(StudentHBaseDate.class, getMaxValue(Date.class));
  Assert.assertNull(studentMax);
  em.close();
}

代码示例来源：origin: BroadleafCommerce/BroadleafCommerce

public void delete(CodeType codeType) {
  if (!em.contains(codeType)) {
    codeType = (CodeType) em.find(CodeTypeImpl.class, codeType.getId());
  }
  em.remove(codeType);
}

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