| /* |
| * Copyright (c) 1998, 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: |
| // Andrei Ilitchev (Oracle), March 7, 2008 |
| // - New file introduced for bug 211300. |
| // 05/16/2008-1.0M8 Guy Pelletier |
| // - 218084: Implement metadata merging functionality between mapping file |
| // 04/27/2010-2.1 Guy Pelletier |
| // - 309856: MappedSuperclasses from XML are not being initialized properly |
| // 03/24/2011-2.3 Guy Pelletier |
| // - 337323: Multi-tenant with shared schema support (part 1) |
| package org.eclipse.persistence.internal.jpa.metadata.transformers; |
| |
| import org.eclipse.persistence.exceptions.ValidationException; |
| import org.eclipse.persistence.internal.jpa.metadata.ORMetadata; |
| import org.eclipse.persistence.internal.jpa.metadata.accessors.MetadataAccessor; |
| import org.eclipse.persistence.internal.jpa.metadata.accessors.objects.MetadataAccessibleObject; |
| import org.eclipse.persistence.internal.jpa.metadata.accessors.objects.MetadataAnnotation; |
| import org.eclipse.persistence.internal.jpa.metadata.accessors.objects.MetadataClass; |
| import org.eclipse.persistence.internal.jpa.metadata.xml.XMLEntityMappings; |
| import org.eclipse.persistence.mappings.TransformationMapping; |
| import org.eclipse.persistence.mappings.transformers.AttributeTransformer; |
| |
| /** |
| * INTERNAL: |
| * Metadata for ReadTransformer. |
| * |
| * Key notes: |
| * - any metadata mapped from XML to this class must be compared in the |
| * equals method. |
| * - when loading from annotations, the constructor accepts the metadata |
| * accessor this metadata was loaded from. Used it to look up any |
| * 'companion' annotation needed for processing. |
| * - methods should be preserved in alphabetical order. |
| * |
| * @author Andrei Ilitchev |
| * @since EclipseLink 1.0 |
| */ |
| public class ReadTransformerMetadata extends ORMetadata { |
| private MetadataClass m_transformerClass; |
| |
| private String m_transformerClassName; |
| private String m_method; |
| |
| /** |
| * INTERNAL: |
| * Used for XML loading. |
| */ |
| public ReadTransformerMetadata() { |
| super("<read-transformer>"); |
| } |
| |
| /** |
| * INTERNAL: |
| * Used for annotation loading. |
| */ |
| public ReadTransformerMetadata(MetadataAnnotation readTransformer, MetadataAccessor accessor) { |
| super(readTransformer, accessor); |
| |
| if (readTransformer != null) { |
| m_transformerClass = getMetadataClass(readTransformer.getAttributeString("transformerClass")); |
| m_method = readTransformer.getAttributeString("method"); |
| } |
| } |
| |
| /** |
| * INTERNAL: |
| * Used for XML loading from subclasses. |
| */ |
| protected ReadTransformerMetadata(String xmlElement) { |
| super(xmlElement); |
| } |
| |
| /** |
| * INTERNAL: |
| */ |
| @Override |
| public boolean equals(Object objectToCompare) { |
| if (objectToCompare instanceof ReadTransformerMetadata) { |
| ReadTransformerMetadata readTransformer = (ReadTransformerMetadata) objectToCompare; |
| |
| if (! valuesMatch(m_transformerClassName, readTransformer.getTransformerClassName())) { |
| return false; |
| } |
| |
| return valuesMatch(m_method, readTransformer.getMethod()); |
| } |
| |
| return false; |
| } |
| |
| @Override |
| public int hashCode() { |
| int result = m_transformerClassName != null ? m_transformerClassName.hashCode() : 0; |
| result = 31 * result + (m_method != null ? m_method.hashCode() : 0); |
| return result; |
| } |
| |
| /** |
| * INTERNAL: |
| * Used for OX mapping. |
| */ |
| public String getMethod() { |
| return m_method; |
| } |
| |
| /** |
| * INTERNAL: |
| */ |
| public MetadataClass getTransformerClass() { |
| return m_transformerClass; |
| } |
| |
| /** |
| * INTERNAL: |
| * Used for OX mapping. |
| */ |
| public String getTransformerClassName() { |
| return m_transformerClassName; |
| } |
| |
| /** |
| * INTERNAL: |
| */ |
| @Override |
| public void initXMLObject(MetadataAccessibleObject accessibleObject, XMLEntityMappings entityMappings) { |
| super.initXMLObject(accessibleObject, entityMappings); |
| |
| m_transformerClass = initXMLClassName(m_transformerClassName); |
| } |
| |
| /** |
| * INTERNAL: |
| * When this method is called there must be either method or class (but not |
| * both!). If there was not class but className, then by now the class |
| * should have been set. |
| */ |
| public void process(TransformationMapping mapping, String annotatedElementName) { |
| if (m_method == null || m_method.equals("")) { |
| if (m_transformerClass.isVoid()) { |
| throw ValidationException.readTransformerHasNeitherClassNorMethod(annotatedElementName); |
| } else { |
| if (m_transformerClass.extendsInterface(AttributeTransformer.class)) { |
| mapping.setAttributeTransformerClassName(m_transformerClass.getName()); |
| } else { |
| throw ValidationException.readTransformerClassDoesntImplementAttributeTransformer(annotatedElementName); |
| } |
| } |
| } else { |
| if (m_transformerClass.isVoid()) { |
| mapping.setAttributeTransformation(m_method); |
| } else { |
| throw ValidationException.readTransformerHasBothClassAndMethod(annotatedElementName); |
| } |
| } |
| } |
| |
| /** |
| * INTERNAL: |
| * Used for OX mapping. |
| */ |
| public void setMethod(String method) { |
| m_method = method; |
| } |
| |
| /** |
| * INTERNAL: |
| */ |
| public void setTransformerClass(MetadataClass transformerClass) { |
| m_transformerClass = transformerClass; |
| } |
| |
| /** |
| * INTERNAL: |
| * Used for OX mapping. |
| */ |
| public void setTransformerClassName(String transformerClassName) { |
| m_transformerClassName = transformerClassName; |
| } |
| } |