本文整理了Java中javax.persistence.metamodel.Metamodel.getManagedTypes()方法的一些代码示例，展示了Metamodel.getManagedTypes()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。Metamodel.getManagedTypes()方法的具体详情如下：
包路径：javax.persistence.metamodel.Metamodel
类名称：Metamodel
方法名：getManagedTypes
[英]Return the metamodel managed types.
[中]返回元模型托管类型。
代码示例来源：origin: spring-projects/spring-data-jpa
/**
* Creates a new {@link JpaMetamodel} for the given JPA {@link Metamodel}.
*
* @param metamodel must not be {@literal null}.
*/
private JpaMetamodel(Metamodel metamodel) {
Assert.notNull(metamodel, "Metamodel must not be null!");
this.metamodel = metamodel;
this.managedTypes = Lazy.of(() -> metamodel.getManagedTypes().stream() //
.map(ManagedType::getJavaType) //
.filter(it -> it != null) //
.collect(StreamUtils.toUnmodifiableSet()));
}代码示例来源：origin: spring-projects/spring-data-jpa
/**
* Creates a new {@link DefaultJpaContext} for the given {@link Set} of {@link EntityManager}s.
*
* @param entityManagers must not be {@literal null}.
*/
public DefaultJpaContext(Set<EntityManager> entityManagers) {
Assert.notNull(entityManagers, "EntityManagers must not be null!");
Assert.notEmpty(entityManagers, "EntityManagers must not be empty!");
this.entityManagers = new LinkedMultiValueMap<Class<?>, EntityManager>();
for (EntityManager em : entityManagers) {
for (ManagedType<?> managedType : em.getMetamodel().getManagedTypes()) {
this.entityManagers.add(managedType.getJavaType(), em);
}
}
}代码示例来源：origin: spring-projects/spring-data-jpa
/**
* Returns the {@link Metamodel} aware of the given type.
*
* @param type must not be {@literal null}.
* @return can be {@literal null}.
*/
@Nullable
private Metamodel getMetamodelFor(Class<?> type) {
for (Metamodel model : metamodels) {
try {
model.managedType(type);
return model;
} catch (IllegalArgumentException o_O) {
// Fall back to inspect *all* managed types manually as Metamodel.managedType(…) only
// returns for entities, embeddables and managed supperclasses.
for (ManagedType<?> managedType : model.getManagedTypes()) {
if (type.equals(managedType.getJavaType())) {
return model;
}
}
}
}
return null;
}
}代码示例来源：origin: stackoverflow.com
public MySQLSchemaGenerator() throws ClassNotFoundException {
Properties mySQLDialectProps = new Properties();
mySQLDialectProps.setProperty("javax.persistence.transactionType", "RESOURCE_LOCAL");
mySQLDialectProps.setProperty("javax.persistence.jtaDataSource", "");
final EntityManagerFactory emf = Persistence.createEntityManagerFactory("<persistence_unit_name>", mySQLDialectProps);
final Metamodel mm = emf.getMetamodel();
for (final ManagedType<?> managedType : mm.getManagedTypes()) {
managedType.getJavaType(); // this returns the java class of the @Entity object
}
}代码示例来源：origin: Blazebit/blaze-persistence
@Override
public Set<ManagedType<?>> getManagedTypes() {
return delegate.getManagedTypes();
}代码示例来源：origin: org.fornax.cartridges/fornax-cartridges-sculptor-framework
@SuppressWarnings({ "unused" })
private boolean isManagedType(Class<?> type) {
for (ManagedType<?> managedType : metaModel.getManagedTypes()) {
if (managedType.getJavaType().equals(type)) {
return true;
}
}
return false;
}代码示例来源：origin: org.teiid.connectors/translator-jpa
@Override
public Set<ManagedType<?>> getManagedTypes() {
return model.getManagedTypes().stream()
.filter(e -> e.getJavaType() != null)
.collect(Collectors.toSet());
}代码示例来源：origin: org.springframework.data/spring-data-jpa
/**
* Creates a new {@link JpaMetamodel} for the given JPA {@link Metamodel}.
*
* @param metamodel must not be {@literal null}.
*/
private JpaMetamodel(Metamodel metamodel) {
Assert.notNull(metamodel, "Metamodel must not be null!");
this.metamodel = metamodel;
this.managedTypes = Lazy.of(() -> metamodel.getManagedTypes().stream() //
.map(ManagedType::getJavaType) //
.filter(it -> it != null) //
.collect(StreamUtils.toUnmodifiableSet()));
}代码示例来源：origin: org.springframework.data/spring-data-jpa
/**
* Creates a new {@link DefaultJpaContext} for the given {@link Set} of {@link EntityManager}s.
*
* @param entityManagers must not be {@literal null}.
*/
public DefaultJpaContext(Set<EntityManager> entityManagers) {
Assert.notNull(entityManagers, "EntityManagers must not be null!");
Assert.notEmpty(entityManagers, "EntityManagers must not be empty!");
this.entityManagers = new LinkedMultiValueMap<Class<?>, EntityManager>();
for (EntityManager em : entityManagers) {
for (ManagedType<?> managedType : em.getMetamodel().getManagedTypes()) {
this.entityManagers.add(managedType.getJavaType(), em);
}
}
}代码示例来源：origin: org.apache.openjpa/openjpa-jest
/**
* Encodes the given meta-model into a new XML document according to JEST Domain XML Schema.
*
* @param model a persistent domain model. Must not be null.
*/
public Document encode(Metamodel model) {
Element root = newDocument(ROOT_ELEMENT_MODEL);
for (ManagedType<?> t : model.getManagedTypes()) {
encodeManagedType(t, root);
}
return root.getOwnerDocument();
}代码示例来源：origin: ch.inftec.ju/ju-dbutil
/**
* Helper function that returns all managed types (i.e. entities) of the specified EntityManager
* as a list of Java Class objects.
* @param em
* @return List of Class<?> objects of the DB entity classes (annotated with @Entity)
*/
public static List<Class<?>> getManagedTypesAsClass(EntityManager em) {
List<Class<?>> classes = new ArrayList<>();
for (ManagedType<?> t : em.getMetamodel().getManagedTypes()) {
Class<?> clazz = t.getJavaType();
classes.add(clazz);
}
return classes;
}代码示例来源：origin: dzinot/spring-boot-jpa-data-rest-soft-delete
private List<Class<?>> getAllManagedEntityTypes(EntityManagerFactory entityManagerFactory) {
List<Class<?>> entityClasses = new ArrayList<>();
Metamodel metamodel = entityManagerFactory.getMetamodel();
for (ManagedType<?> managedType : metamodel.getManagedTypes())
if (managedType.getJavaType().isAnnotationPresent(Entity.class))
entityClasses.add(managedType.getJavaType());
return entityClasses;
}代码示例来源：origin: org.openengsb.labs.jpatest/labs-jpatest-core
private void clearTables(EntityManagerFactory emf) {
Set<ManagedType<?>> types = emf.getMetamodel().getManagedTypes();
EntityManager entityManager = makeEntityManager(emf);
for (ManagedType<?> type : types) {
Class<?> javaType = type.getJavaType();
String name = retrieveEntityName(javaType);
if (name == null) {
LOGGER.warn("could not determine name for entity {}", type);
continue;
}
entityManager.getTransaction().begin();
entityManager.createQuery("DELETE FROM " + name).executeUpdate();
entityManager.getTransaction().commit();
}
entityManager.close();
}代码示例来源：origin: org.kuali.rice/rice-krad-data
/**
* {@inheritDoc}
*/
@Override
public boolean handles(final Class<?> type) {
if (managedTypesCache == null) {
managedTypesCache = new HashSet<Class<?>>();
Set<ManagedType<?>> managedTypes = sharedEntityManager.getMetamodel().getManagedTypes();
for (ManagedType managedType : managedTypes) {
managedTypesCache.add(managedType.getJavaType());
}
}
if (managedTypesCache.contains(type)) {
return true;
} else {
return false;
}
}代码示例来源：origin: org.springframework.data/spring-data-jpa
/**
* Returns the {@link Metamodel} aware of the given type.
*
* @param type must not be {@literal null}.
* @return can be {@literal null}.
*/
@Nullable
private Metamodel getMetamodelFor(Class<?> type) {
for (Metamodel model : metamodels) {
try {
model.managedType(type);
return model;
} catch (IllegalArgumentException o_O) {
// Fall back to inspect *all* managed types manually as Metamodel.managedType(…) only
// returns for entities, embeddables and managed supperclasses.
for (ManagedType<?> managedType : model.getManagedTypes()) {
if (type.equals(managedType.getJavaType())) {
return model;
}
}
}
}
return null;
}
}代码示例来源：origin: com.mysema.querydsl/querydsl-jpa-codegen
@Override
protected void collectTypes() throws IOException, XMLStreamException, ClassNotFoundException,
NoSuchMethodException {
Map<ManagedType<?>, EntityType> types = Maps.newHashMap();
for (ManagedType<?> managedType : configuration.getManagedTypes()) {
if (managedType instanceof MappedSuperclassType) {
types.put(managedType, createSuperType(managedType.getJavaType()));
} else if (managedType instanceof javax.persistence.metamodel.EntityType) {
types.put(managedType, createEntityType(managedType.getJavaType()));
} else if (managedType instanceof EmbeddableType) {
types.put(managedType, createEmbeddableType(managedType.getJavaType()));
} else {
throw new IllegalArgumentException("Unknown type " + managedType);
}
}
// handle properties
for (Map.Entry<ManagedType<?>, EntityType> entry : types.entrySet()) {
EntityType entityType = entry.getValue();
for (Attribute<?,?> attribute : entry.getKey().getDeclaredAttributes()) {
handleProperty(entityType, entityType.getJavaClass(), attribute);
}
}
}代码示例来源：origin: com.querydsl/querydsl-jpa-codegen
@Override
protected void collectTypes() throws IOException, XMLStreamException, ClassNotFoundException,
NoSuchMethodException {
Map<ManagedType<?>, EntityType> types = Maps.newHashMap();
for (ManagedType<?> managedType : metamodel.getManagedTypes()) {
if (managedType instanceof MappedSuperclassType) {
types.put(managedType, createSuperType(managedType.getJavaType()));
} else if (managedType instanceof javax.persistence.metamodel.EntityType) {
types.put(managedType, createEntityType(managedType.getJavaType()));
} else if (managedType instanceof EmbeddableType) {
types.put(managedType, createEmbeddableType(managedType.getJavaType()));
} else {
throw new IllegalArgumentException("Unknown type " + managedType);
}
}
// handle properties
for (Map.Entry<ManagedType<?>, EntityType> entry : types.entrySet()) {
EntityType entityType = entry.getValue();
for (Attribute<?,?> attribute : entry.getKey().getDeclaredAttributes()) {
handleProperty(entityType, entityType.getJavaClass(), attribute);
}
}
}代码示例来源：origin: liquibase/liquibase-hibernate
/**
* Adds sources based on what is in the saved entityManagerFactory
*/
@Override
protected void configureSources(MetadataSources sources) throws DatabaseException {
for (ManagedType<?> managedType : entityManagerFactory.getMetamodel().getManagedTypes()) {
Class<?> javaType = managedType.getJavaType();
if (javaType == null) {
continue;
}
sources.addAnnotatedClass(javaType);
}
Package[] packages = Package.getPackages();
for (Package p : packages) {
sources.addPackage(p);
}
}代码示例来源：origin: net.e6tech/elements-persist
public void initialize(Resources resources) {
startMonitoring();
emf = Persistence.createEntityManagerFactory(persistenceUnitName, persistenceProperties);
EntityManager em = null;
try {
em = emf.createEntityManager();
Metamodel meta = emf.getMetamodel();
meta.getManagedTypes().forEach(type -> {
type.getDeclaredAttributes();
type.getPersistenceType();
});
} finally {
if (em != null)
em.close();
}
NotificationCenter center = resources.getNotificationCenter();
center.subscribe(EvictCollectionRegion.class,
notice -> evictCollectionRegion(notice.getUserObject()));
center.subscribe(EvictEntityRegion.class,
notice -> evictEntityRegion(notice.getUserObject()));
center.subscribe(EvictEntity.class,
notice -> evictEntity(notice.getUserObject()));
}代码示例来源：origin: katharsis-project/katharsis-framework
/**
* Constructor used on server side.
*/
private JpaModule(EntityManagerFactory emFactory, EntityManager em, TransactionRunner transactionRunner) {
this();
this.emFactory = emFactory;
this.em = em;
this.transactionRunner = transactionRunner;
setQueryFactory(JpaCriteriaQueryFactory.newInstance());
if (emFactory != null) {
Set<ManagedType<?>> managedTypes = emFactory.getMetamodel().getManagedTypes();
for (ManagedType<?> managedType : managedTypes) {
Class<?> managedJavaType = managedType.getJavaType();
MetaElement meta = jpaMetaLookup.getMeta(managedJavaType, MetaJpaDataObject.class);
if (meta instanceof MetaEntity) {
addRepository(JpaRepositoryConfig.builder(managedJavaType).build());
}
}
}
this.setRepositoryFactory(new DefaultJpaRepositoryFactory());
}内容来源于网络，如有侵权，请联系作者删除！