vaadin-framework/compatibility-server/src/main/java/com/vaadin/v7/data/util/sqlcontainer/query/generator/filter/NotTranslator.java

/*
 * Copyright 2000-2016 Vaadin Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.vaadin.v7.data.util.sqlcontainer.query.generator.filter;

import com.vaadin.v7.data.Container.Filter;
import com.vaadin.v7.data.util.filter.IsNull;
import com.vaadin.v7.data.util.filter.Not;
import com.vaadin.v7.data.util.sqlcontainer.query.generator.StatementHelper;

/**
 * @deprecated As of 8.0, no replacement available.
 */
@Deprecated
public class NotTranslator implements FilterTranslator {

    @Override
    public boolean translatesFilter(Filter filter) {
        return filter instanceof Not;
    }

    @Override
    public String getWhereStringForFilter(Filter filter, StatementHelper sh) {
        Not not = (Not) filter;
        if (not.getFilter() instanceof IsNull) {
            IsNull in = (IsNull) not.getFilter();
            return QueryBuilder.quote(in.getPropertyId()) + " IS NOT NULL";
        }
        return "NOT "
                + QueryBuilder.getWhereStringForFilter(not.getFilter(), sh);
    }

}