Пример #1
0
  public Collection<ObjRelationship> allRelationships() {
    if (subentities == null) {
      return entity.getRelationships();
    }

    Collection<ObjRelationship> c = new ArrayList<ObjRelationship>();
    appendDeclaredRelationships(c);

    // add base relationships if any
    ObjEntity superEntity = entity.getSuperEntity();
    if (superEntity != null) {
      c.addAll(superEntity.getRelationships());
    }

    return c;
  }
Пример #2
0
  /**
   * ObjEntity property changed. May be name, attribute or relationship added or removed, etc.
   * Attribute and relationship property changes are handled in respective listeners.
   *
   * @since 1.2
   */
  public void objEntityChanged(EntityEvent e) {
    if ((e == null) || (e.getEntity() != this)) {
      // not our concern
      return;
    }

    // handle entity name changes
    if (e.getId() == EntityEvent.CHANGE && e.isNameChange()) {
      String oldName = e.getOldName();
      String newName = e.getNewName();

      DataMap map = getDataMap();
      if (map != null) {
        ObjEntity oe = (ObjEntity) e.getEntity();
        for (ObjRelationship relationship : oe.getRelationships()) {
          relationship = relationship.getReverseRelationship();
          if (null != relationship && relationship.targetEntityName.equals(oldName)) {
            relationship.targetEntityName = newName;
          }
        }
      }
    }
  }
  public void testForeignKey() throws Exception {
    dropTableIfPresent("NEW_TABLE");
    dropTableIfPresent("NEW_TABLE2");

    assertTokensAndExecute(0, 0);

    DbEntity dbEntity1 = new DbEntity("NEW_TABLE");

    DbAttribute e1col1 = new DbAttribute("ID", Types.INTEGER, dbEntity1);
    e1col1.setMandatory(true);
    e1col1.setPrimaryKey(true);
    dbEntity1.addAttribute(e1col1);

    DbAttribute e1col2 = new DbAttribute("NAME", Types.VARCHAR, dbEntity1);
    e1col2.setMaxLength(10);
    e1col2.setMandatory(false);
    dbEntity1.addAttribute(e1col2);

    map.addDbEntity(dbEntity1);

    DbEntity dbEntity2 = new DbEntity("NEW_TABLE2");
    DbAttribute e2col1 = new DbAttribute("ID", Types.INTEGER, dbEntity2);
    e2col1.setMandatory(true);
    e2col1.setPrimaryKey(true);
    dbEntity2.addAttribute(e2col1);
    DbAttribute e2col2 = new DbAttribute("FK", Types.INTEGER, dbEntity2);
    dbEntity2.addAttribute(e2col2);
    DbAttribute e2col3 = new DbAttribute("NAME", Types.VARCHAR, dbEntity2);
    e2col3.setMaxLength(10);
    dbEntity2.addAttribute(e2col3);

    map.addDbEntity(dbEntity2);

    // create db relationships
    DbRelationship rel1To2 = new DbRelationship("rel1To2");
    rel1To2.setSourceEntity(dbEntity1);
    rel1To2.setTargetEntity(dbEntity2);
    rel1To2.setToMany(true);
    rel1To2.addJoin(new DbJoin(rel1To2, e1col1.getName(), e2col2.getName()));
    dbEntity1.addRelationship(rel1To2);
    DbRelationship rel2To1 = new DbRelationship("rel2To1");
    rel2To1.setSourceEntity(dbEntity2);
    rel2To1.setTargetEntity(dbEntity1);
    rel2To1.setToMany(false);
    rel2To1.addJoin(new DbJoin(rel2To1, e2col2.getName(), e1col1.getName()));
    dbEntity2.addRelationship(rel2To1);
    assertSame(rel1To2, rel2To1.getReverseRelationship());
    assertSame(rel2To1, rel1To2.getReverseRelationship());

    assertTokensAndExecute(4, 0);
    assertTokensAndExecute(0, 0);

    // create ObjEntities
    ObjEntity objEntity1 = new ObjEntity("NewTable");
    objEntity1.setDbEntity(dbEntity1);
    ObjAttribute oatr1 = new ObjAttribute("name");
    oatr1.setDbAttributePath(e1col2.getName());
    oatr1.setType("java.lang.String");
    objEntity1.addAttribute(oatr1);
    map.addObjEntity(objEntity1);
    ObjEntity objEntity2 = new ObjEntity("NewTable2");
    objEntity2.setDbEntity(dbEntity2);
    ObjAttribute o2a1 = new ObjAttribute("name");
    o2a1.setDbAttributePath(e2col3.getName());
    o2a1.setType("java.lang.String");
    objEntity2.addAttribute(o2a1);
    map.addObjEntity(objEntity2);

    // create ObjRelationships
    assertEquals(0, objEntity1.getRelationships().size());
    assertEquals(0, objEntity2.getRelationships().size());
    ObjRelationship objRel1To2 = new ObjRelationship("objRel1To2");
    objRel1To2.addDbRelationship(rel1To2);
    objRel1To2.setSourceEntity(objEntity1);
    objRel1To2.setTargetEntity(objEntity2);
    objEntity1.addRelationship(objRel1To2);
    ObjRelationship objRel2To1 = new ObjRelationship("objRel2To1");
    objRel2To1.addDbRelationship(rel2To1);
    objRel2To1.setSourceEntity(objEntity2);
    objRel2To1.setTargetEntity(objEntity1);
    objEntity2.addRelationship(objRel2To1);
    assertEquals(1, objEntity1.getRelationships().size());
    assertEquals(1, objEntity2.getRelationships().size());
    assertSame(objRel1To2, objRel2To1.getReverseRelationship());
    assertSame(objRel2To1, objRel1To2.getReverseRelationship());

    // remove relationship and fk from model, merge to db and read to model
    dbEntity2.removeRelationship(rel2To1.getName());
    dbEntity1.removeRelationship(rel1To2.getName());
    dbEntity2.removeAttribute(e2col2.getName());
    List<MergerToken> tokens = createMergeTokens();
    assertTokens(tokens, 2, 1);
    for (MergerToken token : tokens) {
      if (token.getDirection().isToDb()) {
        execute(token);
      }
    }
    assertTokensAndExecute(0, 0);
    dbEntity2.addRelationship(rel2To1);
    dbEntity1.addRelationship(rel1To2);
    dbEntity2.addAttribute(e2col2);

    // try do use the merger to remove the relationship in the model
    tokens = createMergeTokens();
    assertTokens(tokens, 2, 0);
    // TODO: reversing the following two tokens should also reverse the order
    MergerToken token0 = tokens.get(0).createReverse(mergerFactory());
    MergerToken token1 = tokens.get(1).createReverse(mergerFactory());
    if (!(token0 instanceof DropRelationshipToModel && token1 instanceof DropColumnToModel
        || token1 instanceof DropRelationshipToModel && token0 instanceof DropColumnToModel)) {
      fail();
    }
    execute(token0);
    execute(token1);

    // check after merging
    assertNull(dbEntity2.getAttribute(e2col2.getName()));
    assertEquals(0, dbEntity1.getRelationships().size());
    assertEquals(0, dbEntity2.getRelationships().size());
    assertEquals(0, objEntity1.getRelationships().size());
    assertEquals(0, objEntity2.getRelationships().size());

    // clear up
    dbEntity1.removeRelationship(rel1To2.getName());
    dbEntity2.removeRelationship(rel2To1.getName());
    map.removeObjEntity(objEntity1.getName(), true);
    map.removeDbEntity(dbEntity1.getName(), true);
    map.removeObjEntity(objEntity2.getName(), true);
    map.removeDbEntity(dbEntity2.getName(), true);
    resolver.refreshMappingCache();
    assertNull(map.getObjEntity(objEntity1.getName()));
    assertNull(map.getDbEntity(dbEntity1.getName()));
    assertNull(map.getObjEntity(objEntity2.getName()));
    assertNull(map.getDbEntity(dbEntity2.getName()));
    assertFalse(map.getDbEntities().contains(dbEntity1));
    assertFalse(map.getDbEntities().contains(dbEntity2));

    assertTokensAndExecute(2, 0);
    assertTokensAndExecute(0, 0);
  }