org.hibernate.envers.configuration.internal.metadata.ComponentMetadataGenerator Maven / Gradle / Ivy
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Hibernate's entity version (audit/history) support
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or .
*/
package org.hibernate.envers.configuration.internal.metadata;
import java.util.Iterator;
import java.util.Map;
import org.hibernate.envers.configuration.internal.metadata.reader.ComponentAuditingData;
import org.hibernate.envers.configuration.internal.metadata.reader.PropertyAuditingData;
import org.hibernate.envers.internal.entities.mapper.CompositeMapperBuilder;
import org.hibernate.envers.internal.tools.ReflectionTools;
import org.hibernate.mapping.Component;
import org.hibernate.mapping.Property;
import org.hibernate.mapping.Value;
import org.dom4j.Element;
/**
* Generates metadata for components.
*
* @author Adam Warski (adam at warski dot org)
* @author Lukasz Zuchowski (author at zuchos dot com)
*/
public final class ComponentMetadataGenerator {
private final AuditMetadataGenerator mainGenerator;
ComponentMetadataGenerator(AuditMetadataGenerator auditMetadataGenerator) {
mainGenerator = auditMetadataGenerator;
}
@SuppressWarnings({"unchecked"})
public void addComponent(
Element parent, PropertyAuditingData propertyAuditingData,
Value value, CompositeMapperBuilder mapper, String entityName,
EntityXmlMappingData xmlMappingData, boolean firstPass) {
final Component propComponent = (Component) value;
final Class componentClass;
if ( propComponent.isDynamic() ) {
componentClass = ReflectionTools.loadClass(
Map.class.getCanonicalName(),
mainGenerator.getClassLoaderService()
);
}
else {
componentClass = ReflectionTools.loadClass(
propComponent.getComponentClassName(),
mainGenerator.getClassLoaderService()
);
}
final CompositeMapperBuilder componentMapper = mapper.addComponent(
propertyAuditingData.getPropertyData(),
componentClass
);
// The property auditing data must be for a component.
final ComponentAuditingData componentAuditingData = (ComponentAuditingData) propertyAuditingData;
// Adding all properties of the component
final Iterator properties = (Iterator) propComponent.getPropertyIterator();
while ( properties.hasNext() ) {
final Property property = properties.next();
final PropertyAuditingData componentPropertyAuditingData =
componentAuditingData.getPropertyAuditingData( property.getName() );
// Checking if that property is audited
if ( componentPropertyAuditingData != null ) {
mainGenerator.addValue(
parent, property.getValue(), componentMapper, entityName, xmlMappingData,
componentPropertyAuditingData, property.isInsertable(), firstPass, false
);
}
}
}
}