| /* |
| * 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.beam.sdk.extensions.sql.impl; |
| |
| import java.sql.ResultSetMetaData; |
| import java.sql.SQLException; |
| import java.util.Properties; |
| import java.util.TimeZone; |
| import org.apache.calcite.adapter.java.JavaTypeFactory; |
| import org.apache.calcite.avatica.AvaticaConnection; |
| import org.apache.calcite.avatica.AvaticaFactory; |
| import org.apache.calcite.avatica.AvaticaPreparedStatement; |
| import org.apache.calcite.avatica.AvaticaResultSet; |
| import org.apache.calcite.avatica.AvaticaSpecificDatabaseMetaData; |
| import org.apache.calcite.avatica.AvaticaStatement; |
| import org.apache.calcite.avatica.Meta; |
| import org.apache.calcite.avatica.QueryState; |
| import org.apache.calcite.avatica.UnregisteredDriver; |
| import org.apache.calcite.jdbc.CalciteFactory; |
| import org.apache.calcite.jdbc.CalciteSchema; |
| |
| /** |
| * Wrapper for {@link CalciteFactory}. |
| * |
| * <p>This is a non-functional class to delegate to the underlying {@link CalciteFactory}. The |
| * purpose is to hide the delegation logic from the implementation ({@link JdbcFactory}). |
| */ |
| public abstract class CalciteFactoryWrapper extends CalciteFactory { |
| |
| protected CalciteFactory factory; |
| |
| CalciteFactoryWrapper(CalciteFactory factory) { |
| super(4, 1); |
| this.factory = factory; |
| } |
| |
| @Override |
| public AvaticaConnection newConnection( |
| UnregisteredDriver driver, |
| AvaticaFactory avaticaFactory, |
| String url, |
| Properties info, |
| CalciteSchema rootSchema, |
| JavaTypeFactory typeFactory) { |
| |
| return this.factory.newConnection(driver, avaticaFactory, url, info, rootSchema, typeFactory); |
| } |
| |
| @Override |
| public AvaticaStatement newStatement( |
| AvaticaConnection connection, |
| Meta.StatementHandle h, |
| int resultSetType, |
| int resultSetConcurrency, |
| int resultSetHoldability) |
| throws SQLException { |
| return this.factory.newStatement( |
| connection, h, resultSetType, resultSetConcurrency, resultSetHoldability); |
| } |
| |
| @Override |
| public AvaticaPreparedStatement newPreparedStatement( |
| AvaticaConnection connection, |
| Meta.StatementHandle h, |
| Meta.Signature signature, |
| int resultSetType, |
| int resultSetConcurrency, |
| int resultSetHoldability) |
| throws SQLException { |
| return this.factory.newPreparedStatement( |
| connection, h, signature, resultSetType, resultSetConcurrency, resultSetHoldability); |
| } |
| |
| @Override |
| public AvaticaResultSet newResultSet( |
| AvaticaStatement statement, |
| QueryState state, |
| Meta.Signature signature, |
| TimeZone timeZone, |
| Meta.Frame firstFrame) |
| throws SQLException { |
| return this.factory.newResultSet(statement, state, signature, timeZone, firstFrame); |
| } |
| |
| @Override |
| public AvaticaSpecificDatabaseMetaData newDatabaseMetaData(AvaticaConnection connection) { |
| return this.factory.newDatabaseMetaData(connection); |
| } |
| |
| @Override |
| public ResultSetMetaData newResultSetMetaData( |
| AvaticaStatement statement, Meta.Signature signature) throws SQLException { |
| return this.factory.newResultSetMetaData(statement, signature); |
| } |
| } |