content: /**
   * 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.hive.service.cli.session;
  
  import java.util.List;
  import java.util.Map;
  
  import org.apache.hadoop.hive.metastore.IMetaStoreClient;
  import org.apache.hive.service.auth.HiveAuthFactory;
  import org.apache.hive.service.cli.*;
  
  public interface HiveSession extends HiveSessionBase {
  
    void open(Map<String, String> sessionConfMap) throws Exception;
  
    IMetaStoreClient getMetaStoreClient() throws HiveSQLException;
  
    /**
     * getInfo operation handler
     * @param getInfoType
     * @return
     * @throws HiveSQLException
     */
    GetInfoValue getInfo(GetInfoType getInfoType) throws HiveSQLException;
  
    /**
     * execute operation handler
     * @param statement
     * @param confOverlay
     * @return
     * @throws HiveSQLException
     */
    OperationHandle executeStatement(String statement,
        Map<String, String> confOverlay) throws HiveSQLException;
  
    /**
     * execute operation handler
     * @param statement
     * @param confOverlay
     * @return
     * @throws HiveSQLException
     */
    OperationHandle executeStatementAsync(String statement,
        Map<String, String> confOverlay) throws HiveSQLException;
  
    /**
     * getTypeInfo operation handler
     * @return
     * @throws HiveSQLException
     */
    OperationHandle getTypeInfo() throws HiveSQLException;
  
    /**
     * getCatalogs operation handler
     * @return
     * @throws HiveSQLException
     */
    OperationHandle getCatalogs() throws HiveSQLException;
  
    /**
     * getSchemas operation handler
     * @param catalogName
     * @param schemaName
     * @return
     * @throws HiveSQLException
     */
    OperationHandle getSchemas(String catalogName, String schemaName)
        throws HiveSQLException;
  
    /**
     * getTables operation handler
     * @param catalogName
     * @param schemaName
     * @param tableName
     * @param tableTypes
     * @return
     * @throws HiveSQLException
     */
    OperationHandle getTables(String catalogName, String schemaName,
        String tableName, List<String> tableTypes) throws HiveSQLException;
  
    /**
     * getTableTypes operation handler
     * @return
     * @throws HiveSQLException
     */
    OperationHandle getTableTypes() throws HiveSQLException ;
  
    /**
     * getColumns operation handler
     * @param catalogName
     * @param schemaName
     * @param tableName
     * @param columnName
     * @return
     * @throws HiveSQLException
     */
    OperationHandle getColumns(String catalogName, String schemaName,
        String tableName, String columnName)  throws HiveSQLException;
  
    /**
     * getFunctions operation handler
     * @param catalogName
     * @param schemaName
     * @param functionName
     * @return
     * @throws HiveSQLException
     */
    OperationHandle getFunctions(String catalogName, String schemaName,
        String functionName) throws HiveSQLException;
  
    /**
     * close the session
     * @throws HiveSQLException
     */
    void close() throws HiveSQLException;
  
    void cancelOperation(OperationHandle opHandle) throws HiveSQLException;
  
    void closeOperation(OperationHandle opHandle) throws HiveSQLException;
  
    TableSchema getResultSetMetadata(OperationHandle opHandle)
        throws HiveSQLException;
  
    RowSet fetchResults(OperationHandle opHandle, FetchOrientation orientation,
        long maxRows, FetchType fetchType) throws HiveSQLException;
  
    String getDelegationToken(HiveAuthFactory authFactory, String owner,
        String renewer) throws HiveSQLException;
  
    void cancelDelegationToken(HiveAuthFactory authFactory, String tokenStr)
        throws HiveSQLException;
  
    void renewDelegationToken(HiveAuthFactory authFactory, String tokenStr)
        throws HiveSQLException;
  
    void closeExpiredOperations();
  
    long getNoOperationTime();
  }
  