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| 26 | moos | 1 | package ch.ffhs.webE.dao; |
| 2 | |||
| 3 | import java.util.ArrayList; |
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| 4 | import java.util.List; |
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| 5 | |||
| 6 | import org.hibernate.Session; |
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| 7 | import org.hibernate.Transaction; |
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| 8 | |||
| 9 | import com.googlecode.s2hibernate.struts2.plugin.annotations.SessionTarget; |
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| 10 | import com.googlecode.s2hibernate.struts2.plugin.annotations.TransactionTarget; |
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| 11 | import ch.ffhs.webE.domain.*; |
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| 12 | |||
| 13 | public class RelationshipTypeDAOImpl implements RelationshipTypeDAO |
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| 14 | { |
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| 15 | |||
| 16 | @SessionTarget |
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| 17 | Session session; |
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| 18 | @TransactionTarget |
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| 19 | Transaction transaction; |
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| 20 | |||
| 21 | /** |
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| 22 | * Gets a list of all the relationshipTypes in the database. |
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| 23 | * |
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| 24 | * @return List of all the users. In case of a problem, an empty list is |
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| 25 | * returned. |
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| 26 | */ |
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| 27 | @SuppressWarnings("unchecked") |
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| 28 | @Override |
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| 29 | public List<RelationshipType> listRelationshipTypes() |
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| 30 | { |
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| 31 | |||
| 32 | List<RelationshipType> relType = null; |
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| 33 | |||
| 34 | try |
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| 35 | { |
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| 36 | relType = session.createQuery("from RelationshipType").list(); |
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| 37 | } |
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| 38 | catch (Exception e) |
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| 39 | { |
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| 40 | // TODO: Logging |
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| 41 | } |
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| 42 | |||
| 43 | if (relType == null) |
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| 44 | { |
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| 45 | relType = new ArrayList<RelationshipType>(); |
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| 46 | } |
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| 47 | |||
| 48 | return relType; |
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| 49 | } |
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| 50 | |||
| 51 | /** |
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| 52 | * used to save a relationship type |
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| 53 | * |
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| 54 | * @param RelationshipType |
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| 55 | * relType: A filled DAO |
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| 56 | * @return Boolean indicating success or error in saving the |
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| 57 | * relationshipType |
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| 58 | */ |
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| 59 | @Override |
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| 60 | public boolean saveRelationshipType(RelationshipType relType) |
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| 61 | { |
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| 62 | try |
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| 63 | { |
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| 64 | session.save(relType); |
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| 65 | return true; |
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| 66 | } |
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| 67 | catch (Exception e) |
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| 68 | { |
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| 69 | transaction.rollback(); |
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| 70 | return false; |
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| 71 | // TODO: Logging |
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| 72 | } |
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| 73 | } |
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| 74 | |||
| 75 | /** |
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| 76 | * Used to delete a relationship type. |
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| 77 | * |
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| 78 | * @param int RelationshipType ID |
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| 79 | * @return boolean indicating success or error in the query execution |
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| 80 | */ |
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| 81 | @Override |
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| 82 | public boolean deleteRelationshipType(int relTypeID) |
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| 83 | { |
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| 84 | try |
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| 85 | { |
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| 86 | User user = (User) session.get(RelationshipType.class, relTypeID); |
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| 87 | session.delete(user); |
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| 88 | return true; |
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| 89 | } |
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| 90 | catch (Exception e) |
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| 91 | { |
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| 92 | transaction.rollback(); |
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| 93 | // TODO: Logging |
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| 94 | return false; |
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| 95 | } |
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| 96 | } |
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| 97 | } |