org.apache.druid.sql.SqlStatementFactory 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 org.apache.druid.sql;
import org.apache.druid.sql.http.SqlQuery;
import javax.servlet.http.HttpServletRequest;
/**
* A class for the creation of Statements, which happen to be used for Sql.
*/
public class SqlStatementFactory
{
private final SqlToolbox lifecycleToolbox;
/**
* The construction of these objects in the production code is a bit circuitous. Specifically, the SqlToolbox
* looks like it can be normally injected, except it actually expects to be mutated with a SqlEngine before being
* injected. This is generally accomplished with Guice, examples of which can be seen in the
* SqlStatementFactoryModule.
*
* @param lifecycleToolbox
*/
public SqlStatementFactory(SqlToolbox lifecycleToolbox)
{
this.lifecycleToolbox = lifecycleToolbox;
}
public HttpStatement httpStatement(
final SqlQuery sqlQuery,
final HttpServletRequest req
)
{
return new HttpStatement(lifecycleToolbox, sqlQuery, req);
}
public DirectStatement directStatement(final SqlQueryPlus sqlRequest)
{
return new DirectStatement(lifecycleToolbox, sqlRequest);
}
public PreparedStatement preparedStatement(final SqlQueryPlus sqlRequest)
{
return new PreparedStatement(lifecycleToolbox, sqlRequest);
}
}
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