org.apache.calcite.jdbc

Class CalciteConnectionImpl

java.lang.Object

org.apache.calcite.avatica.AvaticaConnection

org.apache.calcite.jdbc.CalciteConnectionImpl

All Implemented Interfaces:

AutoCloseable, Connection, Wrapper, CalciteConnection, QueryProvider

Direct Known Subclasses:

CalciteJdbc41Factory.CalciteJdbc41Connection

abstract class CalciteConnectionImpl
extends org.apache.calcite.avatica.AvaticaConnection
implements CalciteConnection, QueryProvider

Implementation of JDBC connection in the Calcite engine.

Abstract to allow newer versions of JDBC to add methods.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
(package private) static class	CalciteConnectionImpl.CalciteQueryable<T> Implementation of Queryable.
private static class	CalciteConnectionImpl.CalciteServerImpl Implementation of Server.
(package private) static class	CalciteConnectionImpl.CalciteServerStatementImpl Implementation of CalciteServerStatement.
(package private) static class	CalciteConnectionImpl.ContextImpl Implementation of Context.
(package private) static class	CalciteConnectionImpl.DataContextImpl Implementation of DataContext.
(package private) static class	CalciteConnectionImpl.RootSchema Schema that has no parents.
private static class	CalciteConnectionImpl.SlimDataContext Implementation of DataContext that has few variables and is Serializable.

Nested classes/interfaces inherited from class org.apache.calcite.avatica.AvaticaConnection

org.apache.calcite.avatica.AvaticaConnection.CallableWithoutException<T>, org.apache.calcite.avatica.AvaticaConnection.Trojan

Field Summary

Fields

Modifier and Type	Field and Description
(package private) Function0<CalcitePrepare>	prepareFactory
(package private) CalciteSchema	rootSchema
(package private) CalciteServer	server
(package private) static org.apache.calcite.avatica.AvaticaConnection.Trojan	TROJAN
JavaTypeFactory	typeFactory

Fields inherited from class org.apache.calcite.avatica.AvaticaConnection

driver, factory, handle, helper, id, info, maxRetriesPerExecute, meta, metaData, NUM_EXECUTE_RETRIES_DEFAULT, NUM_EXECUTE_RETRIES_KEY, PLAN_COLUMN_NAME, properties, ROWCOUNT_COLUMN_NAME, statementCount, statementMap

Fields inherited from interface java.sql.Connection

TRANSACTION_NONE, TRANSACTION_READ_COMMITTED, TRANSACTION_READ_UNCOMMITTED, TRANSACTION_REPEATABLE_READ, TRANSACTION_SERIALIZABLE

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	CalciteConnectionImpl(Driver driver, org.apache.calcite.avatica.AvaticaFactory factory, String url, Properties info, CalciteSchema rootSchema, JavaTypeFactory typeFactory) Creates a CalciteConnectionImpl.

Method Summary

Modifier and Type	Method and Description
CalciteConnectionConfig	config()
DataContext	createDataContext(Map<String,Object> parameterValues, CalciteSchema rootSchema)
CalcitePrepare.Context	createPrepareContext() Creates a context for preparing a statement for execution.
<T> Queryable<T>	createQuery(Expression expression, Class<T> rowType)
<T> Queryable<T>	createQuery(Expression expression, Type rowType)
CalciteStatement	createStatement(int resultSetType, int resultSetConcurrency, int resultSetHoldability)
<T> Enumerable<T>	enumerable(org.apache.calcite.avatica.Meta.StatementHandle handle, CalcitePrepare.CalciteSignature<T> signature)
<T> T	execute(Expression expression, Class<T> type)
<T> T	execute(Expression expression, Type type)
<T> Enumerator<T>	executeQuery(Queryable<T> queryable)
AtomicBoolean	getCancelFlag(org.apache.calcite.avatica.Meta.StatementHandle handle)
(package private) org.apache.calcite.avatica.UnregisteredDriver	getDriver()
(package private) org.apache.calcite.avatica.AvaticaFactory	getFactory()
Properties	getProperties() Returns an instance of the connection properties.
SchemaPlus	getRootSchema() Returns the root schema.
JavaTypeFactory	getTypeFactory() Returns the type factory.
(package private) void	init() Called after the constructor has completed and the model has been loaded.
(package private) CalciteMetaImpl	meta()
(package private) <T> CalcitePrepare.CalciteSignature<T>	parseQuery(CalcitePrepare.Query<T> query, CalcitePrepare.Context prepareContext, long maxRowCount)
private CalcitePreparedStatement	prepareStatement_(CalcitePrepare.Query<?> query, int resultSetType, int resultSetConcurrency, int resultSetHoldability)
CalcitePreparedStatement	prepareStatement(String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability)
<T> T	unwrap(Class<T> iface)

Methods inherited from class org.apache.calcite.avatica.AvaticaConnection

abort, clearWarnings, close, commit, createArrayOf, createBlob, createClob, createNClob, createResultSet, createSQLXML, createStatement, createStatement, createStruct, createTrojan, executeBatchUpdateInternal, executeQueryInternal, getAutoCommit, getCatalog, getClientInfo, getClientInfo, getHoldability, getKerberosConnection, getMetaData, getNetworkTimeout, getSchema, getService, getTimeZone, getTransactionIsolation, getTypeMap, getWarnings, invokeWithRetries, isClosed, isReadOnly, isValid, isWrapperFor, lookupStatement, nativeSQL, openConnection, prepareAndExecuteInternal, prepareAndUpdateBatch, prepareCall, prepareCall, prepareCall, prepareStatement, prepareStatement, prepareStatement, prepareStatement, prepareStatement, releaseSavepoint, rollback, rollback, setAutoCommit, setCatalog, setClientInfo, setClientInfo, setHoldability, setKerberosConnection, setNetworkTimeout, setReadOnly, setSavepoint, setSavepoint, setSchema, setService, setTransactionIsolation, setTypeMap

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.calcite.jdbc.CalciteConnection

getSchema, setSchema

Methods inherited from interface java.sql.Connection

abort, clearWarnings, close, commit, createArrayOf, createBlob, createClob, createNClob, createSQLXML, createStatement, createStatement, createStruct, getAutoCommit, getCatalog, getClientInfo, getClientInfo, getHoldability, getMetaData, getNetworkTimeout, getTransactionIsolation, getTypeMap, getWarnings, isClosed, isReadOnly, isValid, nativeSQL, prepareCall, prepareCall, prepareCall, prepareStatement, prepareStatement, prepareStatement, prepareStatement, prepareStatement, releaseSavepoint, rollback, rollback, setAutoCommit, setCatalog, setClientInfo, setClientInfo, setHoldability, setNetworkTimeout, setReadOnly, setSavepoint, setSavepoint, setTransactionIsolation, setTypeMap

Methods inherited from interface java.sql.Wrapper

isWrapperFor

Field Detail

typeFactory

public final JavaTypeFactory typeFactory

rootSchema

final CalciteSchema rootSchema

prepareFactory

final Function0<CalcitePrepare> prepareFactory

server

final CalciteServer server

TROJAN

static final org.apache.calcite.avatica.AvaticaConnection.Trojan TROJAN

Constructor Detail

CalciteConnectionImpl

protected CalciteConnectionImpl(Driver driver,
                                org.apache.calcite.avatica.AvaticaFactory factory,
                                String url,
                                Properties info,
                                CalciteSchema rootSchema,
                                JavaTypeFactory typeFactory)

Creates a CalciteConnectionImpl.

Not public; method is called only from the driver.

Parameters:

driver - Driver

factory - Factory for JDBC objects

url - Server URL

info - Other connection properties

rootSchema - Root schema, or null

typeFactory - Type factory, or null

Method Detail

meta

CalciteMetaImpl meta()

config

public CalciteConnectionConfig config()

Specified by:

config in interface CalciteConnection

Overrides:

config in class org.apache.calcite.avatica.AvaticaConnection

createPrepareContext

public CalcitePrepare.Context createPrepareContext()

Description copied from interface: CalciteConnection

Creates a context for preparing a statement for execution.

Specified by:

createPrepareContext in interface CalciteConnection

init

void init()

Called after the constructor has completed and the model has been loaded.

unwrap

public <T> T unwrap(Class<T> iface)
             throws SQLException

Specified by:

unwrap in interface Wrapper

Overrides:

unwrap in class org.apache.calcite.avatica.AvaticaConnection

Throws:

SQLException

createStatement

public CalciteStatement createStatement(int resultSetType,
                                        int resultSetConcurrency,
                                        int resultSetHoldability)
                                 throws SQLException

Specified by:

createStatement in interface Connection

Overrides:

createStatement in class org.apache.calcite.avatica.AvaticaConnection

Throws:

SQLException

prepareStatement

public CalcitePreparedStatement prepareStatement(String sql,
                                                 int resultSetType,
                                                 int resultSetConcurrency,
                                                 int resultSetHoldability)
                                          throws SQLException

Specified by:

prepareStatement in interface Connection

Overrides:

prepareStatement in class org.apache.calcite.avatica.AvaticaConnection

Throws:

SQLException

prepareStatement_

private CalcitePreparedStatement prepareStatement_(CalcitePrepare.Query<?> query,
                                                   int resultSetType,
                                                   int resultSetConcurrency,
                                                   int resultSetHoldability)
                                            throws SQLException

Throws:

SQLException

parseQuery

<T> CalcitePrepare.CalciteSignature<T> parseQuery(CalcitePrepare.Query<T> query,
                                                  CalcitePrepare.Context prepareContext,
                                                  long maxRowCount)

getCancelFlag

public AtomicBoolean getCancelFlag(org.apache.calcite.avatica.Meta.StatementHandle handle)
                            throws org.apache.calcite.avatica.NoSuchStatementException

Overrides:

getCancelFlag in class org.apache.calcite.avatica.AvaticaConnection

Throws:

org.apache.calcite.avatica.NoSuchStatementException

getRootSchema

public SchemaPlus getRootSchema()

Description copied from interface: CalciteConnection

Returns the root schema.

You can define objects (such as relations) in this schema, and also nested schemas.

Specified by:

getRootSchema in interface CalciteConnection

Returns:

Root schema

getTypeFactory

public JavaTypeFactory getTypeFactory()

Description copied from interface: CalciteConnection

Returns the type factory.

Specified by:

getTypeFactory in interface CalciteConnection

Returns:

Type factory

getProperties

public Properties getProperties()

Description copied from interface: CalciteConnection

Returns an instance of the connection properties.

NOTE: The resulting collection of properties is same collection used by the connection, and is writable, but behavior if you modify the collection is undefined. Some implementations might, for example, see a modified property, but only if you set it before you create a statement. We will remove this method when there are better implementations of stateful connections and configuration.

Specified by:

getProperties in interface CalciteConnection

Returns:

properties

createQuery

public <T> Queryable<T> createQuery(Expression expression,
                                    Class<T> rowType)

Specified by:

createQuery in interface QueryProvider

createQuery

public <T> Queryable<T> createQuery(Expression expression,
                                    Type rowType)

Specified by:

createQuery in interface QueryProvider

execute

public <T> T execute(Expression expression,
                     Type type)

Specified by:

execute in interface QueryProvider

execute

public <T> T execute(Expression expression,
                     Class<T> type)

Specified by:

execute in interface QueryProvider

executeQuery

public <T> Enumerator<T> executeQuery(Queryable<T> queryable)

Specified by:

executeQuery in interface QueryProvider

enumerable

public <T> Enumerable<T> enumerable(org.apache.calcite.avatica.Meta.StatementHandle handle,
                                    CalcitePrepare.CalciteSignature<T> signature)
                             throws SQLException

Throws:

SQLException

createDataContext

public DataContext createDataContext(Map<String,Object> parameterValues,
                                     CalciteSchema rootSchema)

getDriver

org.apache.calcite.avatica.UnregisteredDriver getDriver()

getFactory

org.apache.calcite.avatica.AvaticaFactory getFactory()