| /* |
| * Copyright (c) 2011, 2020 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0, |
| * or the Eclipse Distribution License v. 1.0 which is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause |
| */ |
| |
| // Contributors: |
| // 03/19/2009-2.0 dclarke - initial API start |
| // 06/30/2009-2.0 mobrien - finish JPA Metadata API modifications in support |
| // of the Metamodel implementation for EclipseLink 2.0 release involving |
| // Map, ElementCollection and Embeddable types on MappedSuperclass descriptors |
| // - 266912: JPA 2.0 Metamodel API (part of the JSR-317 EJB 3.1 Criteria API) |
| // 07/06/2009-2.0 mobrien - 266912: Introduce IdentifiableTypeImpl between ManagedTypeImpl |
| // - EntityTypeImpl now inherits from IdentifiableTypeImpl instead of ManagedTypeImpl |
| // - MappedSuperclassTypeImpl now inherits from IdentifiableTypeImpl instead |
| // of implementing IdentifiableType indirectly |
| // 07/16/2009-2.0 mobrien - 266912: implement getIdType() minus full composite key support |
| // http://wiki.eclipse.org/EclipseLink/Development/JPA_2.0/metamodel_api#DI_47:_20090715:_Implement_IdentifiableType.getIdType.28.29_for_composite_keys |
| package org.eclipse.persistence.internal.jpa.metamodel; |
| |
| import jakarta.persistence.metamodel.Bindable; |
| import jakarta.persistence.metamodel.EntityType; |
| import jakarta.persistence.metamodel.Type; |
| |
| import org.eclipse.persistence.descriptors.ClassDescriptor; |
| |
| /** |
| * <p> |
| * <b>Purpose</b>: Provides the implementation for the EntityType interface |
| * of the JPA 2.0 Metamodel API (part of the JSR-317 EJB 3.1 Criteria API) |
| * <br>EntityTypeImpl implements the IdentifiableType interface via EntityType |
| * <p> |
| * <b>Description</b>: |
| * Instances of the type EntityType represent entity types. |
| * |
| * @see jakarta.persistence.metamodel.EntityType |
| * |
| * @since EclipseLink 1.2 - JPA 2.0 |
| * @param <X> The represented entity type. |
| */ |
| public class EntityTypeImpl<X> extends IdentifiableTypeImpl<X> implements EntityType<X> { |
| |
| /** Item 54: DI 89: explicit UID will avoid performance hit runtime generation of one */ |
| private static final long serialVersionUID = 7970950485096018114L; |
| |
| protected EntityTypeImpl(MetamodelImpl metamodel, ClassDescriptor descriptor) { |
| super(metamodel, descriptor); |
| // The supertype field will remain uninstantiated until MetamodelImpl.initialize() is complete |
| } |
| |
| /** |
| * Return the bindable type of the represented object. |
| * @return bindable type |
| */ |
| @Override |
| public Bindable.BindableType getBindableType() { |
| return Bindable.BindableType.ENTITY_TYPE; |
| } |
| |
| /** |
| * Return the Java type of the represented object. |
| * If the bindable type of the object is <code>PLURAL_ATTRIBUTE</code>, |
| * the Java element type is returned. If the bindable type is |
| * <code>SINGULAR_ATTRIBUTE</code> or <code>ENTITY_TYPE</code>, |
| * the Java type of the |
| * represented entity or attribute is returned. |
| * @return Java type |
| */ |
| @Override |
| public Class<X> getBindableJavaType() { |
| // In EntityType our BindableType is ENTITY_TYPE - return the java type of the entity |
| return this.getJavaType(); |
| } |
| |
| /** |
| * Return the entity name |
| * @return entity name |
| */ |
| @Override |
| public String getName() { |
| return getDescriptor().getAlias(); |
| } |
| |
| /** |
| * Return the persistence type. |
| * @return persistence type |
| */ |
| @Override |
| public Type.PersistenceType getPersistenceType() { |
| return Type.PersistenceType.ENTITY; |
| } |
| |
| /** |
| * INTERNAL: |
| * Return whether this type is an Entity (true) or MappedSuperclass (false) or Embeddable (false) |
| * @return |
| */ |
| @Override |
| public boolean isEntity() { |
| return true; |
| } |
| |
| /** |
| * INTERNAL: |
| * Return whether this type is an MappedSuperclass (true) or Entity (false) or Embeddable (false) |
| * @return |
| */ |
| @Override |
| public boolean isMappedSuperclass() { |
| return !isEntity(); |
| } |
| |
| } |