示例#1
0
        public void SelectStringSqlTest()
        {
            Configuration   cfg     = new Configuration();
            ISessionFactory factory = cfg.BuildSessionFactory();

            ISessionFactoryImplementor factoryImpl = (ISessionFactoryImplementor)factory;
            SqlSelectBuilder           select      = new SqlSelectBuilder(factoryImpl);

            select.SetSelectClause("column1, column2");
            select.SetFromClause("select_test", "select_test_alias");
            select.SetOuterJoins(
                new SqlString(" LEFT OUTER JOIN before ON select_test_alias.column1 = before.column1"),
                new SqlString(" after.some_field = after.another_field "));
            select.SetOrderByClause(new SqlString("column1 DESC"));

            select.SetWhereClause("select_test_alias", new string[] { "identity_column" }, NHibernateUtil.Int64);

            SqlString sqlString = select.ToSqlString();

            string expectedSql = new StringBuilder().Append("SELECT ")
                                 .Append("column1, column2 ")
                                 .Append("FROM select_test select_test_alias ")
                                 .Append("LEFT OUTER JOIN before ON select_test_alias.column1 = before.column1 ")
                                 .Append("WHERE ")
                                 .Append("after.some_field = after.another_field")
                                 .Append(" AND ")
                                 .Append("select_test_alias.identity_column = ? ")
                                 .Append("ORDER BY column1 DESC")
                                 .ToString();


            Assert.AreEqual(expectedSql, sqlString.ToString(), "SQL String");
            Assert.AreEqual(1, sqlString.GetParameterCount(), "One parameter");
        }
        private void InitStatementString(IOuterJoinLoadable elementPersister, string alias, int batchSize, SqlString subquery)
        {
            int joins = CountEntityPersisters(associations);

            Suffixes = BasicLoader.GenerateSuffixes(joins + 1);

            int collectionJoins = CountCollectionPersisters(associations) + 1;

            CollectionSuffixes = BasicLoader.GenerateSuffixes(joins + 1, collectionJoins);

            SqlStringBuilder whereString = WhereString(oneToManyPersister.GenerateTableAliasForKeyColumns(alias), oneToManyPersister.KeyColumnNames, subquery, batchSize);
            string           filter      = oneToManyPersister.FilterFragment(alias, EnabledFilters);

            whereString.Insert(0, StringHelper.MoveAndToBeginning(filter));

            JoinFragment     ojf    = MergeOuterJoins(associations);
            SqlSelectBuilder select =
                new SqlSelectBuilder(Factory).SetSelectClause(
                    oneToManyPersister.SelectFragment(null, null, alias, Suffixes[joins], CollectionSuffixes[0], true)
                    + SelectString(associations)).SetFromClause(elementPersister.FromTableFragment(alias)
                                                                + oneToManyPersister.FromJoinFragment(alias, true, true)).SetWhereClause(
                    whereString.ToSqlString()).SetOuterJoins(ojf.ToFromFragmentString,
                                                             ojf.ToWhereFragmentString
                                                             + elementPersister.WhereJoinFragment(alias, true, true));

            select.SetOrderByClause(OrderBy(associations, oneToManyPersister.GetSQLOrderByString(alias)));

            if (Factory.Settings.IsCommentsEnabled)
            {
                select.SetComment("load one-to-many " + oneToManyPersister.Role);
            }

            SqlString = select.ToSqlString();
        }
        private void InitStatementString(SqlString projection, SqlString condition,
                                         SqlString orderBy, string groupBy, SqlString having, LockMode lockMode)
        {
            int joins = CountEntityPersisters(associations);

            Suffixes = BasicLoader.GenerateSuffixes(joins + 1);
            JoinFragment ojf = MergeOuterJoins(associations);

            SqlString selectClause = projection
                                     ??
                                     new SqlString(persister.SelectFragment(alias, Suffixes[joins]) + SelectString(associations));

            SqlSelectBuilder select = new SqlSelectBuilder(Factory)
                                      .SetLockMode(lockMode)
                                      .SetSelectClause(selectClause)
                                      .SetFromClause(Dialect.AppendLockHint(lockMode, persister.FromTableFragment(alias)) + persister.FromJoinFragment(alias, true, true))
                                      .SetWhereClause(condition)
                                      .SetOuterJoins(ojf.ToFromFragmentString, ojf.ToWhereFragmentString + WhereFragment)
                                      .SetOrderByClause(OrderBy(associations, orderBy))
                                      .SetGroupByClause(groupBy)
                                      .SetHavingClause(having);

            if (Factory.Settings.IsCommentsEnabled)
            {
                select.SetComment(Comment);
            }

            SqlString = select.ToSqlString();
        }
示例#4
0
        private void InitStatementString(IQueryableCollection persister, string alias, IList associations, int batchSize, ISessionFactoryImplementor factory)
        {
            Suffixes = GenerateSuffixes(associations.Count);

            SqlStringBuilder whereString = WhereString(factory, alias, persister.KeyColumnNames, persister.KeyType, batchSize);

            if (persister.HasWhere)
            {
                whereString
                .Add(" and ")
                .Add(persister.GetSQLWhereString(alias));
            }

            JoinFragment     ojf    = MergeOuterJoins(associations);
            SqlSelectBuilder select = new SqlSelectBuilder(factory)
                                      .SetSelectClause(
                persister.SelectFragment(alias).Append(
                    SelectString(associations, factory)).ToString()
                )
                                      .SetFromClause(persister.TableName, alias)
                                      .SetWhereClause(whereString.ToSqlString())
                                      .SetOuterJoins(
                ojf.ToFromFragmentString,
                ojf.ToWhereFragmentString
                );

            if (persister.HasOrdering)
            {
                select.SetOrderByClause(persister.GetSQLOrderByString(alias));
            }
            SqlString = select.ToSqlString();
        }
示例#5
0
        private void InitStatementString(string alias, int batchSize, SqlString subquery)
        {
            int joins           = CountEntityPersisters(associations);
            int collectionJoins = CountCollectionPersisters(associations) + 1;

            Suffixes           = BasicLoader.GenerateSuffixes(joins);
            CollectionSuffixes = BasicLoader.GenerateSuffixes(joins, collectionJoins);

            SqlStringBuilder whereString = WhereString(alias, collectionPersister.KeyColumnNames, subquery, batchSize);

            string manyToManyOrderBy = string.Empty;
            string filter            = collectionPersister.FilterFragment(alias, EnabledFilters);

            if (collectionPersister.IsManyToMany)
            {
                // from the collection of associations, locate OJA for the
                // ManyToOne corresponding to this persister to fully
                // define the many-to-many; we need that OJA so that we can
                // use its alias here
                // TODO : is there a better way here?
                IAssociationType associationType = (IAssociationType)collectionPersister.ElementType;
                foreach (OuterJoinableAssociation oja in associations)
                {
                    if (oja.JoinableType == associationType)
                    {
                        // we found it
                        filter            += collectionPersister.GetManyToManyFilterFragment(oja.RHSAlias, EnabledFilters);
                        manyToManyOrderBy += collectionPersister.GetManyToManyOrderByString(oja.RHSAlias);
                    }
                }
            }

            whereString.Insert(0, StringHelper.MoveAndToBeginning(filter));
            JoinFragment ojf = MergeOuterJoins(associations);

            SqlSelectBuilder select =
                new SqlSelectBuilder(Factory)
                .SetSelectClause(collectionPersister.SelectFragment(alias, CollectionSuffixes[0])
                                 + SelectString(associations))
                .SetFromClause(collectionPersister.TableName, alias)
                .SetWhereClause(whereString.ToSqlString())
                .SetOuterJoins(ojf.ToFromFragmentString, ojf.ToWhereFragmentString);

            select.SetOrderByClause(OrderBy(associations, MergeOrderings(collectionPersister.GetSQLOrderByString(alias), manyToManyOrderBy)));

            if (Factory.Settings.IsCommentsEnabled)
            {
                select.SetComment("load collection " + collectionPersister.Role);
            }

            SqlString = select.ToSqlString();
        }