/// <summary>
		/// Configures the TableGenerator by reading the value of <c>table</c>, 
		/// <c>column</c>, and <c>schema</c> from the <c>parms</c> parameter.
		/// </summary>
		/// <param name="type">The <see cref="IType"/> the identifier should be.</param>
		/// <param name="parms">An <see cref="IDictionary"/> of Param values that are keyed by parameter name.</param>
		/// <param name="dialect">The <see cref="Dialect"/> to help with Configuration.</param>
		public virtual void Configure(IType type, IDictionary parms, Dialect.Dialect dialect)
		{
			tableName = PropertiesHelper.GetString(Table, parms, "hibernate_unique_key");
			columnName = PropertiesHelper.GetString(Column, parms, "next_hi");
			string schemaName = (string) parms[Schema];
			if (schemaName != null && tableName.IndexOf(StringHelper.Dot) < 0)
			{
				tableName = schemaName + "." + tableName;
			}

			query =
				"select " +
				columnName +
				" from " +
				dialect.AppendLockHint(LockMode.Upgrade, tableName) +
				dialect.ForUpdateString;

			columnType = type as ValueTypeType;
			if (columnType == null)
			{
				log.Error("Column type for TableGenerator is not a value type");
				throw new ArgumentException("type is not a ValueTypeType", "type");
			}

			// build the sql string for the Update since it uses parameters
			if (type is Int16Type)
			{
				columnSqlType = SqlTypeFactory.Int16;
			}
			else if (type is Int64Type)
			{
				columnSqlType = SqlTypeFactory.Int64;
			}
			else
			{
				columnSqlType = SqlTypeFactory.Int32;
			}

			parameterTypes = new SqlType[2] {columnSqlType, columnSqlType};

			SqlStringBuilder builder = new SqlStringBuilder();
			builder.Add("update " + tableName + " set ")
				.Add(columnName)
				.Add(" = ")
				.Add(Parameter.Placeholder)
				.Add(" where ")
				.Add(columnName)
				.Add(" = ")
				.Add(Parameter.Placeholder);

			updateSql = builder.ToSqlString();
		}
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        /// <summary>
        /// Configures the TableGenerator by reading the value of <c>table</c>, 
        /// <c>column</c>, and <c>schema</c> from the <c>parms</c> parameter.
        /// </summary>
        /// <param name="type">The <see cref="IType"/> the identifier should be.</param>
        /// <param name="parms">An <see cref="IDictionary"/> of Param values that are keyed by parameter name.</param>
        /// <param name="dialect">The <see cref="Dialect"/> to help with Configuration.</param>
        public virtual void Configure(IType type, IDictionary<string, string> parms, Dialect.Dialect dialect)
        {
            tableName = PropertiesHelper.GetString(TableParamName, parms, DefaultTableName);
            columnName = PropertiesHelper.GetString(ColumnParamName, parms, DefaultColumnName);
            whereClause = PropertiesHelper.GetString(Where, parms, "");
            string schemaName = PropertiesHelper.GetString(PersistentIdGeneratorParmsNames.Schema, parms, null);
            string catalogName = PropertiesHelper.GetString(PersistentIdGeneratorParmsNames.Catalog, parms, null);

            if (tableName.IndexOf('.') < 0)
            {
                tableName = Table.Qualify(catalogName, schemaName, tableName);
            }

            query = "select " + columnName + " from " + dialect.AppendLockHint(LockMode.Upgrade, tableName)
                    + dialect.ForUpdateString;

            columnType = type as PrimitiveType;
            if (columnType == null)
            {
                log.Error("Column type for TableGenerator is not a value type");
                throw new ArgumentException("type is not a ValueTypeType", "type");
            }

            // build the sql string for the Update since it uses parameters
            if (type is Int16Type)
            {
                columnSqlType = SqlTypeFactory.Int16;
            }
            else if (type is Int64Type)
            {
                columnSqlType = SqlTypeFactory.Int64;
            }
            else
            {
                columnSqlType = SqlTypeFactory.Int32;
            }

            parameterTypes = new SqlType[2] {columnSqlType, columnSqlType};

            SqlStringBuilder builder = new SqlStringBuilder();
            builder.Add("update " + tableName + " set ")
                .Add(columnName)
                .Add(" = ")
                .Add(Parameter.Placeholder)
                .Add(" where ")
                .Add(columnName)
                .Add(" = ")
                .Add(Parameter.Placeholder);
            if (string.IsNullOrEmpty(whereClause) == false)
            {
                builder.Add(" and ")
                    .Add(whereClause);
            }

            updateSql = builder.ToSqlString();
        }