| /* |
| * 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.iotdb.isession.pool; |
| |
| import org.apache.iotdb.isession.ISession; |
| import org.apache.iotdb.isession.SessionDataSet; |
| import org.apache.iotdb.rpc.IoTDBConnectionException; |
| import org.apache.iotdb.rpc.StatementExecutionException; |
| import org.apache.iotdb.tsfile.read.common.RowRecord; |
| |
| import java.util.List; |
| |
| public class SessionDataSetWrapper implements AutoCloseable { |
| |
| SessionDataSet sessionDataSet; |
| ISession session; |
| ISessionPool pool; |
| |
| public SessionDataSetWrapper(SessionDataSet sessionDataSet, ISession session, ISessionPool pool) { |
| this.sessionDataSet = sessionDataSet; |
| this.session = session; |
| this.pool = pool; |
| } |
| |
| public ISession getSession() { |
| return session; |
| } |
| |
| public int getBatchSize() { |
| return sessionDataSet.getFetchSize(); |
| } |
| |
| public void setBatchSize(int batchSize) { |
| sessionDataSet.setFetchSize(batchSize); |
| } |
| |
| /** |
| * If there is an Exception, and you do not want to use the resultset anymore, you have to release |
| * the resultset manually by calling closeResultSet |
| * |
| * @return |
| * @throws IoTDBConnectionException |
| * @throws StatementExecutionException |
| */ |
| public boolean hasNext() throws IoTDBConnectionException, StatementExecutionException { |
| boolean next = sessionDataSet.hasNext(); |
| if (!next) { |
| pool.closeResultSet(this); |
| } |
| return next; |
| } |
| /** |
| * If there is an Exception, and you do not want to use the resultset anymore, you have to release |
| * the resultset manually by calling closeResultSet |
| * |
| * @return |
| * @throws IoTDBConnectionException |
| * @throws StatementExecutionException |
| */ |
| public RowRecord next() throws IoTDBConnectionException, StatementExecutionException { |
| return sessionDataSet.next(); |
| } |
| |
| /** retrieve data set like jdbc */ |
| public SessionDataSet.DataIterator iterator() { |
| return sessionDataSet.iterator(); |
| } |
| |
| public List<String> getColumnNames() { |
| return sessionDataSet.getColumnNames(); |
| } |
| |
| public List<String> getColumnTypes() { |
| return sessionDataSet.getColumnTypes(); |
| } |
| |
| /** close this dataset to release the session */ |
| @Override |
| public void close() { |
| pool.closeResultSet(this); |
| } |
| |
| public void setSession(ISession session) { |
| this.session = session; |
| } |
| |
| public SessionDataSet getSessionDataSet() { |
| return sessionDataSet; |
| } |
| |
| public void setSessionDataSet(SessionDataSet sessionDataSet) { |
| this.sessionDataSet = sessionDataSet; |
| } |
| } |