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package ch.ffhs.webE.dao;
import java.util.ArrayList;
import java.util.List;
import org.hibernate.Session;
import org.hibernate.Transaction;
import ch.ffhs.webE.domain.RelationshipType;
import com.googlecode.s2hibernate.struts2.plugin.annotations.SessionTarget;
import com.googlecode.s2hibernate.struts2.plugin.annotations.TransactionTarget;
/**
* Data Access Object class for {@link RelationshipType}s
*
* @author Thomas Lahn
*/
public class RelationshipTypeDAO
{
/**
* Hibernate session target
*/
@SessionTarget
Session session
;
/**
* Hibernate transaction target
*/
@TransactionTarget
Transaction transaction
;
/**
* Gets a list of all the relationshipTypes in the database.
*
* @return List of all the users. In case of a problem, an empty list is
* returned.
*/
@
SuppressWarnings("unchecked")
public List<RelationshipType
> getList
()
{
List<RelationshipType
> relType =
null;
try
{
relType =
this.
session.
createQuery("from RelationshipType").
list(); //$NON-NLS-1$
}
catch (Exception e
)
{
// TODO: Logging
}
if (relType ==
null)
{
relType =
new ArrayList<RelationshipType
>();
}
return relType
;
}
/**
* Saves or updates a relationship type
*
* @param relType
* A filled domain object
* @return Boolean indicating success or error in saving the relationshipType
*/
public boolean saveOrUpdate
(RelationshipType relType
)
{
try
{
this.
session.
saveOrUpdate(relType
);
return true;
}
catch (Exception e
)
{
this.
transaction.
rollback();
return false;
// TODO: Logging
}
}
/**
* Delete a relationship type
*
* @param relTypeId
* Relationship type ID
* @return boolean indicating success or error in the query execution
*/
public boolean delete
(int relTypeId
)
{
try
{
RelationshipType relType =
(RelationshipType
) this.
session.
get(
RelationshipType.
class, relTypeId
);
this.
session.
delete(relType
);
return true;
}
catch (Exception e
)
{
this.
transaction.
rollback();
// TODO: Logging
return false;
}
}
/**
* Used to get a relationship type by ID
*
* @param relTypeID
* @return
*/
public RelationshipType getById
(int relTypeID
)
{
RelationshipType relType =
null;
try
{
relType =
(RelationshipType
) this.
session.
get(RelationshipType.
class,
relTypeID
);
}
catch (Exception e
)
{
e.
printStackTrace();
// TODO: Logging
}
return relType
;
}
}