package org.javers.core.diff.appenders;
import org.javers.core.diff.NodePair;
import org.javers.core.diff.changetype.ReferenceChange;
import org.javers.core.metamodel.object.GlobalId;
import org.javers.core.metamodel.property.Property;
import org.javers.core.metamodel.type.JaversType;
import org.javers.core.metamodel.type.ManagedType;
import java.util.Objects;
/**
* @author bartosz walacik
* @author pawel szymczyk
*/
class ReferenceChangeAppender extends CorePropertyChangeAppender<ReferenceChange> {
@Override
public boolean supports(JaversType propertyType) {
return propertyType instanceof ManagedType;
}
@Override
public ReferenceChange calculateChanges(NodePair pair, Property property) {
GlobalId leftId = pair.getLeftGlobalId(property);
GlobalId rightId = pair.getRightGlobalId(property);
if (Objects.equals(leftId, rightId)) {
return null;
}
return new ReferenceChange(pair.getGlobalId(), property.getName(), leftId, rightId,
pair.getLeftPropertyValue(property), pair.getRightPropertyValue(property));
}
}