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org.hibernate.envers.internal.synchronization.work.AddWorkUnit Maven / Gradle / Ivy
/*
* 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.internal.synchronization.work;
import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;
import org.hibernate.engine.spi.SessionImplementor;
import org.hibernate.envers.RevisionType;
import org.hibernate.envers.boot.internal.EnversService;
import org.hibernate.envers.internal.entities.PropertyData;
import org.hibernate.envers.internal.entities.mapper.ExtendedPropertyMapper;
import org.hibernate.envers.internal.tools.ArraysTools;
import org.hibernate.persister.entity.EntityPersister;
/**
* @author Adam Warski (adam at warski dot org)
* @author Lukasz Antoniak (lukasz dot antoniak at gmail dot com)
*/
public class AddWorkUnit extends AbstractAuditWorkUnit implements AuditWorkUnit {
private final Object[] state;
private final Map data;
public AddWorkUnit(
SessionImplementor sessionImplementor,
String entityName,
EnversService enversService,
Serializable id, EntityPersister entityPersister, Object[] state) {
super( sessionImplementor, entityName, enversService, id, RevisionType.ADD );
this.data = new HashMap<>();
this.state = state;
this.enversService.getEntitiesConfigurations().get( getEntityName() ).getPropertyMapper().map(
sessionImplementor,
data,
entityPersister.getPropertyNames(),
state,
null
);
}
public AddWorkUnit(
SessionImplementor sessionImplementor,
String entityName,
EnversService enversService,
Serializable id,
Map data) {
super( sessionImplementor, entityName, enversService, id, RevisionType.ADD );
this.data = data;
final String[] propertyNames = sessionImplementor.getFactory().getMetamodel()
.entityPersister( getEntityName() )
.getPropertyNames();
this.state = ArraysTools.mapToArray( data, propertyNames );
}
@Override
public boolean containsWork() {
return true;
}
@Override
public Map generateData(Object revisionData) {
fillDataWithId( data, revisionData );
return data;
}
public Object[] getState() {
return state;
}
@Override
public AuditWorkUnit merge(AddWorkUnit second) {
return second;
}
@Override
public AuditWorkUnit merge(ModWorkUnit second) {
return new AddWorkUnit(
sessionImplementor,
entityName,
enversService,
id,
mergeModifiedFlags( data, second.getData() )
);
}
@Override
public AuditWorkUnit merge(DelWorkUnit second) {
return null;
}
@Override
public AuditWorkUnit merge(CollectionChangeWorkUnit second) {
second.mergeCollectionModifiedData( data );
return this;
}
@Override
public AuditWorkUnit merge(FakeBidirectionalRelationWorkUnit second) {
return FakeBidirectionalRelationWorkUnit.merge( second, this, second.getNestedWorkUnit() );
}
@Override
public AuditWorkUnit dispatch(WorkUnitMergeVisitor first) {
return first.merge( this );
}
private Map mergeModifiedFlags(Map lhs, Map rhs) {
final ExtendedPropertyMapper mapper = enversService.getEntitiesConfigurations().get( getEntityName() ).getPropertyMapper();
// Designed to take any lhs modified flag values of true and merge those into the data set for the rhs
// This makes sure that when merging ModAuditWork with AddWorkUnit within the same transaction for the
// same entity that the modified flags are tracked correctly.
for ( PropertyData propertyData : mapper.getProperties().keySet() ) {
if ( propertyData.isUsingModifiedFlag() && !propertyData.isSynthetic() ) {
Boolean lhsValue = (Boolean) lhs.get( propertyData.getModifiedFlagPropertyName() );
if ( lhsValue != null && lhsValue ) {
Boolean rhsValue = (Boolean) rhs.get( propertyData.getModifiedFlagPropertyName() );
if ( rhsValue == null || !rhsValue ) {
rhs.put( propertyData.getModifiedFlagPropertyName(), true );
}
}
}
}
return rhs;
}
}