com.hazelcast.org.apache.calcite.adapter.jdbc.JdbcQueryProvider Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to you 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.hazelcast.org.apache.calcite.adapter.jdbc;
import com.hazelcast.org.apache.calcite.linq4j.Enumerator;
import com.hazelcast.org.apache.calcite.linq4j.QueryProvider;
import com.hazelcast.org.apache.calcite.linq4j.QueryProviderImpl;
import com.hazelcast.org.apache.calcite.linq4j.Queryable;
import static com.hazelcast.org.apache.calcite.linq4j.Nullness.castNonNull;
/**
* Implementation of {@link QueryProvider} that talks to JDBC databases.
*/
public final class JdbcQueryProvider extends QueryProviderImpl {
public static final JdbcQueryProvider INSTANCE = new JdbcQueryProvider();
private JdbcQueryProvider() {
}
@Override public Enumerator executeQuery(Queryable queryable) {
return castNonNull(null);
}
}
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