2 * Copyright 2000-2018 Vaadin Ltd.
4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
5 * use this file except in compliance with the License. You may obtain a copy of
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations under
16 package com.vaadin.v7.data.util.sqlcontainer.query.generator.filter;
18 import com.vaadin.v7.data.Container.Filter;
19 import com.vaadin.v7.data.util.filter.IsNull;
20 import com.vaadin.v7.data.util.sqlcontainer.query.generator.StatementHelper;
23 * @deprecated As of 8.0, no replacement available.
26 public class IsNullTranslator implements FilterTranslator {
29 public boolean translatesFilter(Filter filter) {
30 return filter instanceof IsNull;
34 public String getWhereStringForFilter(Filter filter, StatementHelper sh) {
35 IsNull in = (IsNull) filter;
36 return QueryBuilder.quote(in.getPropertyId()) + " IS NULL";