| /* |
| * 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: |
| // Oracle - initial API and implementation from Oracle TopLink |
| // 05/16/2008-1.0M8 Guy Pelletier |
| // - 218084: Implement metadata merging functionality between mapping files |
| // 02/25/2009-2.0 Guy Pelletier |
| // - 265359: JPA 2.0 Element Collections - Metadata processing portions |
| // 03/27/2009-2.0 Guy Pelletier |
| // - 241413: JPA 2.0 Add EclipseLink support for Map type attributes |
| // 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) |
| // // 30/05/2012-2.4 Guy Pelletier |
| // - 354678: Temp classloader is still being used during metadata processing |
| // 11/19/2012-2.5 Guy Pelletier |
| // - 389090: JPA 2.1 DDL Generation Support (foreign key metadata support) |
| package org.eclipse.persistence.internal.jpa.metadata.converters; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.HashMap; |
| |
| import org.eclipse.persistence.exceptions.ValidationException; |
| |
| import org.eclipse.persistence.internal.jpa.metadata.accessors.MetadataAccessor; |
| import org.eclipse.persistence.internal.jpa.metadata.accessors.mappings.MappingAccessor; |
| import org.eclipse.persistence.internal.jpa.metadata.accessors.objects.MetadataAnnotation; |
| import org.eclipse.persistence.internal.jpa.metadata.accessors.objects.MetadataClass; |
| |
| import org.eclipse.persistence.mappings.DatabaseMapping; |
| import org.eclipse.persistence.mappings.converters.EnumTypeConverter; |
| |
| /** |
| * INTERNAL: |
| * Object to hold onto an object type converter metadata. |
| * |
| * 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 Guy Pelletier |
| * @since TopLink 11g |
| */ |
| public class ObjectTypeConverterMetadata extends TypeConverterMetadata { |
| private List<ConversionValueMetadata> m_conversionValues = new ArrayList<ConversionValueMetadata>(); |
| private String m_defaultObjectValue; |
| |
| /** |
| * INTERNAL: |
| * Used for XML loading. |
| */ |
| public ObjectTypeConverterMetadata() { |
| super("<object-type-converter>"); |
| } |
| |
| /** |
| * INTERNAL: |
| * Used for annotation loading. |
| */ |
| public ObjectTypeConverterMetadata(MetadataAnnotation objectTypeConverter, MetadataAccessor accessor) { |
| super(objectTypeConverter, accessor); |
| |
| for (Object conversionValue: objectTypeConverter.getAttributeArray("conversionValues")) { |
| m_conversionValues.add(new ConversionValueMetadata((MetadataAnnotation)conversionValue, accessor)); |
| } |
| |
| m_defaultObjectValue = objectTypeConverter.getAttributeString("defaultObjectValue"); |
| } |
| |
| /** |
| * INTERNAL: |
| */ |
| @Override |
| public boolean equals(Object objectToCompare) { |
| if (super.equals(objectToCompare) && objectToCompare instanceof ObjectTypeConverterMetadata) { |
| ObjectTypeConverterMetadata objectTypeConverter = (ObjectTypeConverterMetadata) objectToCompare; |
| |
| if (! valuesMatch(m_conversionValues, objectTypeConverter.getConversionValues())) { |
| return false; |
| } |
| |
| return valuesMatch(m_defaultObjectValue, objectTypeConverter.getDefaultObjectValue()); |
| } |
| |
| return false; |
| } |
| |
| @Override |
| public int hashCode() { |
| int result = super.hashCode(); |
| result = 31 * result + (m_conversionValues != null ? m_conversionValues.hashCode() : 0); |
| result = 31 * result + (m_defaultObjectValue != null ? m_defaultObjectValue.hashCode() : 0); |
| return result; |
| } |
| |
| /** |
| * INTERNAL: |
| * Used for OX mapping. |
| */ |
| public List<ConversionValueMetadata> getConversionValues() { |
| return m_conversionValues; |
| } |
| |
| /** |
| * INTERNAL: |
| * Used for OX mapping. |
| */ |
| public String getDefaultObjectValue() { |
| return m_defaultObjectValue; |
| } |
| |
| /** |
| * INTERNAL: |
| */ |
| public boolean hasConversionValues() { |
| return ! m_conversionValues.isEmpty(); |
| } |
| |
| /** |
| * INTERNAL: |
| */ |
| @Override |
| public void process(DatabaseMapping mapping, MappingAccessor accessor, MetadataClass referenceClass, boolean isForMapKey) { |
| org.eclipse.persistence.mappings.converters.ObjectTypeConverter converter; |
| MetadataClass dataType = getDataType(accessor, referenceClass); |
| MetadataClass objectType = getObjectType(accessor, referenceClass); |
| |
| if (objectType.isEnum()) { |
| // Create an EnumTypeConverter. |
| converter = new EnumTypeConverter(mapping, objectType.getName()); |
| |
| // The object values should be the names of the enum members so |
| // force the objectType to String to ensure the initObject calls |
| // below will work. |
| objectType = getMetadataFactory().getMetadataClass(String.class.getName()); |
| } else { |
| // Create an ObjectTypeConverter. |
| converter = new org.eclipse.persistence.mappings.converters.ObjectTypeConverter(mapping); |
| } |
| |
| // Set the converter name (for better exception handling) |
| converter.setConverterName(getName()); |
| |
| // Set the type names on the converter. |
| converter.setDataTypeName(getJavaClassName(dataType)); |
| converter.setObjectTypeName(getJavaClassName(objectType)); |
| |
| // Process the conversion values. |
| // Hold two-way mappings from the database to the object. |
| Map<String, String> dataToObjectValues = new HashMap<String, String>(); |
| // If a member from m_dataToObjectValues is not in m_objectToDataValues |
| // then it will be assumed that it is a one-way mapping. |
| Map<String, String> objectToDataValues = new HashMap<String, String>(); |
| |
| if (hasConversionValues()) { |
| for (ConversionValueMetadata conversionValue: getConversionValues()) { |
| String dataValue = conversionValue.getDataValue(); |
| String objectValue = conversionValue.getObjectValue(); |
| |
| if (dataToObjectValues.containsKey(dataValue)) { |
| throw ValidationException.multipleObjectValuesForDataValue(accessor.getJavaClass(), getName(), dataValue); |
| } else { |
| dataToObjectValues.put(dataValue, objectValue); |
| |
| // Only add it if it is a two-way mapping. |
| if (! objectToDataValues.containsKey(objectValue)) { |
| objectToDataValues.put(objectValue, dataValue); |
| } |
| } |
| } |
| } |
| |
| // Process the data to object mappings. The object and data values |
| // should be primitive wrapper types so we can initialize the |
| // conversion values now. |
| for (String dataValue : dataToObjectValues.keySet()) { |
| String objectValue = dataToObjectValues.get(dataValue); |
| |
| if (objectToDataValues.containsKey(objectValue)) { |
| // It's a two-way mapping ... |
| converter.addConversionValueStrings(dataValue, objectValue); |
| } else { |
| // It's a one-way mapping ... |
| converter.addToAttributeOnlyConversionValueStrings(dataValue, objectValue); |
| } |
| } |
| |
| // Process the defaultObjectValue if one is specified. |
| if (m_defaultObjectValue != null && ! m_defaultObjectValue.equals("")) { |
| converter.setDefaultAttributeValueString(m_defaultObjectValue); |
| } |
| |
| // Set the converter on the mapping. |
| setConverter(mapping, converter, isForMapKey); |
| } |
| |
| /** |
| * INTERNAL: |
| * Used for OX mapping. |
| */ |
| public void setConversionValues(List<ConversionValueMetadata> conversionValues) { |
| m_conversionValues = conversionValues; |
| } |
| |
| /** |
| * INTERNAL: |
| * Used for OX mapping. |
| */ |
| public void setDefaultObjectValue(String defaultObjectValue) { |
| m_defaultObjectValue = defaultObjectValue; |
| } |
| } |