org.teiid.jdbc
Class ConnectionImpl

java.lang.Object
  org.teiid.jdbc.WrapperImpl
      org.teiid.jdbc.ConnectionImpl

All Implemented Interfaces:

java.sql.Connection, java.sql.Wrapper

public class ConnectionImpl
extends WrapperImpl
implements java.sql.Connection

Field Summary

static int	DEFAULT_ISOLATION
protected java.util.Properties	propInfo
protected ServerConnection	serverConn

Fields inherited from interface java.sql.Connection

TRANSACTION_NONE, TRANSACTION_READ_COMMITTED, TRANSACTION_READ_UNCOMMITTED, TRANSACTION_REPEATABLE_READ, TRANSACTION_SERIALIZABLE

Constructor Summary

ConnectionImpl(ServerConnection serverConn, java.util.Properties info, java.lang.String url)

Method Summary

void	clearWarnings()
void	close()
void	commit() This method makes any changes involved in a transaction permanent and releases any locks held by the connection object.
protected void	commitTransaction(XidImpl arg0, boolean arg1)
java.sql.Array	createArrayOf(java.lang.String typeName, java.lang.Object[] elements)
java.sql.Blob	createBlob()
java.sql.Clob	createClob()
java.sql.NClob	createNClob()
java.sql.SQLXML	createSQLXML()
java.sql.Statement	createStatement() This creates a MMStatement object for sending SQL statements to the MetaMatrix server.
java.sql.Statement	createStatement(int resultSetType, int resultSetConcurrency) Creates a Statement object that will produce ResultSet objects of the type resultSetType and concurrency level resultSetConcurrency.
java.sql.Statement	createStatement(int resultSetType, int resultSetConcurrency, int resultSetHoldability)
java.sql.Struct	createStruct(java.lang.String typeName, java.lang.Object[] attributes)
protected void	endTransaction(XidImpl arg0, int arg1)
protected void	forgetTransaction(XidImpl arg0)
boolean	getAutoCommit() This method returns the current status of the connection in regards to it's auto-commit state.
java.lang.String	getCatalog()
java.util.Properties	getClientInfo()
java.lang.String	getClientInfo(java.lang.String name)
java.lang.String	getConnectionId() Connection identifier of this connection
protected java.util.Properties	getConnectionProperties()
java.lang.String	getDatabaseName() Get the database name that this connection is representing
int	getHoldability() Retrieves the current holdability of ResultSet objects created using this Connection object.
java.sql.DatabaseMetaData	getMetaData()
int	getTransactionIsolation()
protected XidImpl	getTransactionXid()
java.util.Map	getTypeMap() Retreives the type map associated with this Connection object.
int	getVDBVersion()
java.sql.SQLWarning	getWarnings() This method will return the first warning reported by calls on this connection, or null if none exist.
boolean	isClosed() This method will return whether this connection is closed or not.
boolean	isReadOnly() This method will return whether this connection is read only or not.
boolean	isSameProcess(ConnectionImpl conn)
boolean	isValid(int timeout)
java.lang.String	nativeSQL(java.lang.String sql) This method will convert the given SQL String into a MetaMatrix SQL Request.
java.sql.CallableStatement	prepareCall(java.lang.String sql) Creates a CallableStatement object that contains sql and that will produce ResultSet objects that are non-scrollable and non-updatable.
java.sql.CallableStatement	prepareCall(java.lang.String sql, int resultSetType, int resultSetConcurrency) Creates a CallableStatement object that contains a sql and that will produce ResultSet objects of the type resultSetType and with a concurrency level of resultSetConcurrency.
java.sql.CallableStatement	prepareCall(java.lang.String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability)
java.sql.PreparedStatement	prepareStatement(java.lang.String sql) This method creates a MMPreparedStatement which is used for sending parameterized SQL statements to the MetaMatrix server.
java.sql.PreparedStatement	prepareStatement(java.lang.String sql, int autoGeneratedKeys)
java.sql.PreparedStatement	prepareStatement(java.lang.String sql, int[] columnIndexes)
java.sql.PreparedStatement	prepareStatement(java.lang.String sql, int resultSetType, int resultSetConcurrency) Creates a PreparedStatement object that contains a sql and that will produce ResultSet objects of the type resultSetType and with a concurrency level of resultSetConcurrency.
java.sql.PreparedStatement	prepareStatement(java.lang.String sql, int resultSetType, int resultSetConcurrency, int resultSetHoldability) This method creates a MMPreparedStatement which is used for sending parameterized SQL statements to the MetaMatrix server and it has the capability to retrieve auto-generated keys.
java.sql.PreparedStatement	prepareStatement(java.lang.String sql, java.lang.String[] columnNames)
protected int	prepareTransaction(XidImpl arg0)
protected javax.transaction.xa.Xid[]	recoverTransaction(int arg0)
void	recycleConnection()
void	releaseSavepoint(java.sql.Savepoint savepoint)
void	rollback() This method will drop all changes made since the beginning of the transaction and release any MetaMatrix server locks currently held by this connection.
void	rollback(java.sql.Savepoint savepoint)
protected void	rollbackTransaction(XidImpl arg0)
void	setAutoCommit(boolean autoCommit) This method will set the connection's auto commit mode accordingly.
void	setCatalog(java.lang.String catalog) Metamatrix does not allow setting a catalog through a connection.
void	setClientInfo(java.util.Properties properties)
void	setClientInfo(java.lang.String name, java.lang.String value)
void	setHoldability(int holdability)
void	setReadOnly(boolean readOnly)
java.sql.Savepoint	setSavepoint()
java.sql.Savepoint	setSavepoint(java.lang.String name)
void	setTransactionIsolation(int level)
void	setTypeMap(java.util.Map<java.lang.String,java.lang.Class<?>> map)
protected void	startTransaction(XidImpl arg0, int arg1, int timeout)

Methods inherited from class org.teiid.jdbc.WrapperImpl

isWrapperFor, unwrap

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.sql.Wrapper

isWrapperFor, unwrap

Field Detail

DEFAULT_ISOLATION

public static final int DEFAULT_ISOLATION

See Also:

Constant Field Values

propInfo

protected java.util.Properties propInfo

serverConn

protected ServerConnection serverConn

Constructor Detail

ConnectionImpl

public ConnectionImpl(ServerConnection serverConn,
                      java.util.Properties info,
                      java.lang.String url)

Method Detail

getConnectionProperties

protected java.util.Properties getConnectionProperties()

getConnectionId

public java.lang.String getConnectionId()

Connection identifier of this connection

Returns:

identifier

Throws:

java.sql.SQLException

clearWarnings

public void clearWarnings()
                   throws java.sql.SQLException

Specified by:

clearWarnings in interface java.sql.Connection

Throws:

java.sql.SQLException

close

public void close()
           throws java.sql.SQLException

Specified by:

close in interface java.sql.Connection

Throws:

java.sql.SQLException

commit

public void commit()
            throws java.sql.SQLException

This method makes any changes involved in a transaction permanent and releases any locks held by the connection object. This is only used when auto-commit is set to false.

Specified by:

commit in interface java.sql.Connection

Throws:

java.sql.SQLException - if the transaction had been rolled back or marked to roll back.

createStatement

public java.sql.Statement createStatement()
                                   throws java.sql.SQLException

This creates a MMStatement object for sending SQL statements to the MetaMatrix server. This should be used for statements without parameters. For statements that are executed many times, use the PreparedStatement object.

Specified by:

createStatement in interface java.sql.Connection

Returns:

a Statement object.

Throws:

a - SQLException if a MetaMatrix server access error occurs.

java.sql.SQLException

createStatement

public java.sql.Statement createStatement(int resultSetType,
                                          int resultSetConcurrency)
                                   throws java.sql.SQLException

Creates a Statement object that will produce ResultSet objects of the type resultSetType and concurrency level resultSetConcurrency.

Specified by:

createStatement in interface java.sql.Connection

Parameters:

intvalue - indicating the ResultSet's type

intValue - indicating the ResultSet's concurrency

Returns:

Statement object.

Throws:

java.sql.SQLException

getAutoCommit

public boolean getAutoCommit()
                      throws java.sql.SQLException

This method returns the current status of the connection in regards to it's auto-commit state. By default, the auto-commit is set to true. Meaning that any transaction that occurs is automatically commited to the MetaMatrix server. #See corresponding setAutoCommit() method.

Specified by:

getAutoCommit in interface java.sql.Connection

Returns:

true if the statements on this connection get committed on execution.

Throws:

java.sql.SQLException - should never happen

getCatalog

public java.lang.String getCatalog()
                            throws java.sql.SQLException

Specified by:

getCatalog in interface java.sql.Connection

Throws:

java.sql.SQLException

getVDBVersion

public int getVDBVersion()
                  throws java.sql.SQLException

Throws:

java.sql.SQLException

getMetaData

public java.sql.DatabaseMetaData getMetaData()
                                      throws java.sql.SQLException

Specified by:

getMetaData in interface java.sql.Connection

Throws:

java.sql.SQLException

getDatabaseName

public java.lang.String getDatabaseName()

Get the database name that this connection is representing

Returns:

String name of the database

getHoldability

public int getHoldability()
                   throws java.sql.SQLException

Retrieves the current holdability of ResultSet objects created using this Connection object.

Specified by:

getHoldability in interface java.sql.Connection

Parameters:

holdability - int indicating the holdability

Returns:

int holdability

Throws:

java.sql.SQLException

getTransactionIsolation

public int getTransactionIsolation()
                            throws java.sql.SQLException

Specified by:

getTransactionIsolation in interface java.sql.Connection

Throws:

java.sql.SQLException

getTypeMap

public java.util.Map getTypeMap()
                         throws java.sql.SQLException

Retreives the type map associated with this Connection object. The type map contains entries for undefined types. This method always returns an empty map since it is not possible to add entries to this type map

Specified by:

getTypeMap in interface java.sql.Connection

Returns:

map containing undefined types(empty)

Throws:

SQLException, - should never occur

java.sql.SQLException

getWarnings

public java.sql.SQLWarning getWarnings()
                                throws java.sql.SQLException

This method will return the first warning reported by calls on this connection, or null if none exist.

Specified by:

getWarnings in interface java.sql.Connection

Returns:

A SQLWarning object if there are any warnings.

Throws:

SQLException, - should never occur

java.sql.SQLException

isClosed

public boolean isClosed()
                 throws java.sql.SQLException

This method will return whether this connection is closed or not.

Specified by:

isClosed in interface java.sql.Connection

Returns:

booleanvalue indicating if the connection is closed

Throws:

SQLException, - should never occur

java.sql.SQLException

isReadOnly

public boolean isReadOnly()
                   throws java.sql.SQLException

This method will return whether this connection is read only or not. It will throw a SQLException if a MetaMatrix server access error occurs.

Specified by:

isReadOnly in interface java.sql.Connection

Returns:

boolean value indication if connection is readonly

Throws:

SQLException, - should never occur

java.sql.SQLException

nativeSQL

public java.lang.String nativeSQL(java.lang.String sql)
                           throws java.sql.SQLException

This method will convert the given SQL String into a MetaMatrix SQL Request. This will convert any date escape sequences into the appropriate MetaMatrix type, and any kind of data transformations that the MetaMatrix server would expect. This method returns the native form of the statement that the driver would have sent.

Specified by:

nativeSQL in interface java.sql.Connection

Parameters:

sql - string to be coverted into SQL understood by metamatrix

Returns:

uncoverted sql string(escape parsing takesplace in metamatrix)

Throws:

SQLException, - should never occur

java.sql.SQLException

prepareCall

public java.sql.CallableStatement prepareCall(java.lang.String sql)
                                       throws java.sql.SQLException

Creates a CallableStatement object that contains sql and that will produce ResultSet objects that are non-scrollable and non-updatable. A SQL stored procedure call statement is handled by creating a CallableStatement for it.

Specified by:

prepareCall in interface java.sql.Connection

Parameters:

sql - String(escape syntax) for invoking a stored procedure.

Returns:

CallableStatement object that can be used to execute the storedProcedure

Throws:

java.sql.SQLException - if there is an error creating the callable statement object

prepareCall

public java.sql.CallableStatement prepareCall(java.lang.String sql,
                                              int resultSetType,
                                              int resultSetConcurrency)
                                       throws java.sql.SQLException

Creates a CallableStatement object that contains a sql and that will produce ResultSet objects of the type resultSetType and with a concurrency level of resultSetConcurrency. A SQL stored procedure call statement is handled by creating a CallableStatement for it.

Specified by:

prepareCall in interface java.sql.Connection

Parameters:

sql - String(escape syntax) for invoking a stored procedure.

intvalue - indicating the ResultSet's type

intValue - indicating the ResultSet's concurrency

Returns:

CallableStatement object that can be used to execute the storedProcedure

Throws:

java.sql.SQLException

prepareStatement

public java.sql.PreparedStatement prepareStatement(java.lang.String sql)
                                            throws java.sql.SQLException

This method creates a MMPreparedStatement which is used for sending parameterized SQL statements to the MetaMatrix server. A statement with or without IN parameters can be pre-compiled and stored in a MMPreparedStatement object. Since the MetaMatrix server does not pre-compile statements, a sql statement will be constructed using the parameters supplied which would be used for execution of this preparedStatement object.

Specified by:

prepareStatement in interface java.sql.Connection

Parameters:

sql - string representing a prepared statement

Returns:

a PreparedStatement object

Throws:

java.sql.SQLException - if there is an error creating a prepared statement object

prepareStatement

public java.sql.PreparedStatement prepareStatement(java.lang.String sql,
                                                   int resultSetType,
                                                   int resultSetConcurrency)
                                            throws java.sql.SQLException

Creates a PreparedStatement object that contains a sql and that will produce ResultSet objects of the type resultSetType and with a concurrency level of resultSetConcurrency.

Specified by:

prepareStatement in interface java.sql.Connection

Parameters:

sql - string representing a prepared statement

intvalue - indicating the ResultSet's type

intValue - indicating the ResultSet's concurrency

Returns:

a PreparedStatement object

Throws:

java.sql.SQLException

prepareStatement

public java.sql.PreparedStatement prepareStatement(java.lang.String sql,
                                                   int resultSetType,
                                                   int resultSetConcurrency,
                                                   int resultSetHoldability)
                                            throws java.sql.SQLException

This method creates a MMPreparedStatement which is used for sending parameterized SQL statements to the MetaMatrix server and it has the capability to retrieve auto-generated keys.

Specified by:

prepareStatement in interface java.sql.Connection

Parameters:

sql - string representing a prepared statement

intValue - indicating the result set Type

intValue - indicating the result set concurrency

intValue - indicating the result set holdability

Returns:

a PreparedStatement object

Throws:

java.sql.SQLException - if there is an error creating a prepared statement object

rollback

public void rollback()
              throws java.sql.SQLException

This method will drop all changes made since the beginning of the transaction and release any MetaMatrix server locks currently held by this connection. This method rolls back transactions on all the statements currently open on this connection. This is used when then auto-commit has been disabled.

Specified by:

rollback in interface java.sql.Connection

Throws:

java.sql.SQLException - if there is an error rolling back.

See Also:

method for more information.

setAutoCommit

public void setAutoCommit(boolean autoCommit)
                   throws java.sql.SQLException

This method will set the connection's auto commit mode accordingly. By default this is set to true (auto-commit is turned on). An auto-commit value of true means any statements will automatically be made permanent if they are successful after the last row of the ReulstSet has been retrieved or the next execute occurs, whichever comes first. If set to false, changes can be either be committed (using the commit() method) or rolled back ("undo the changes" by using the rollback() method).

Specified by:

setAutoCommit in interface java.sql.Connection

Parameters:

boolean - value indicating if autoCommit is turned on

Throws:

java.sql.SQLException - is metamatrix access error occurs.

setCatalog

public void setCatalog(java.lang.String catalog)
                throws java.sql.SQLException

Metamatrix does not allow setting a catalog through a connection. This method silently ignores the request as per the specification.

Specified by:

setCatalog in interface java.sql.Connection

Parameters:

The - string values which sets the catalog name on the connection.

Throws:

java.sql.SQLException - This should never occur.

setReadOnly

public void setReadOnly(boolean readOnly)
                 throws java.sql.SQLException

Specified by:

setReadOnly in interface java.sql.Connection

Parameters:

A - boolean value specifying whether the connection is readonly.

Throws:

throws - SQLException.

java.sql.SQLException

commitTransaction

protected void commitTransaction(XidImpl arg0,
                                 boolean arg1)
                          throws java.sql.SQLException

Throws:

java.sql.SQLException

endTransaction

protected void endTransaction(XidImpl arg0,
                              int arg1)
                       throws java.sql.SQLException

Throws:

java.sql.SQLException

forgetTransaction

protected void forgetTransaction(XidImpl arg0)
                          throws java.sql.SQLException

Throws:

java.sql.SQLException

prepareTransaction

protected int prepareTransaction(XidImpl arg0)
                          throws java.sql.SQLException

Throws:

java.sql.SQLException

recoverTransaction

protected javax.transaction.xa.Xid[] recoverTransaction(int arg0)
                                                 throws java.sql.SQLException

Throws:

java.sql.SQLException

rollbackTransaction

protected void rollbackTransaction(XidImpl arg0)
                            throws java.sql.SQLException

Throws:

java.sql.SQLException

startTransaction

protected void startTransaction(XidImpl arg0,
                                int arg1,
                                int timeout)
                         throws java.sql.SQLException

Throws:

java.sql.SQLException

getTransactionXid

protected XidImpl getTransactionXid()

isValid

public boolean isValid(int timeout)
                throws java.sql.SQLException

Specified by:

isValid in interface java.sql.Connection

Throws:

java.sql.SQLException

recycleConnection

public void recycleConnection()

isSameProcess

public boolean isSameProcess(ConnectionImpl conn)
                      throws CommunicationException

Throws:

CommunicationException

setClientInfo

public void setClientInfo(java.util.Properties properties)
                   throws java.sql.SQLClientInfoException

Specified by:

setClientInfo in interface java.sql.Connection

Throws:

java.sql.SQLClientInfoException

setClientInfo

public void setClientInfo(java.lang.String name,
                          java.lang.String value)
                   throws java.sql.SQLClientInfoException

Specified by:

setClientInfo in interface java.sql.Connection

Throws:

java.sql.SQLClientInfoException

getClientInfo

public java.util.Properties getClientInfo()
                                   throws java.sql.SQLException

Specified by:

getClientInfo in interface java.sql.Connection

Throws:

java.sql.SQLException

getClientInfo

public java.lang.String getClientInfo(java.lang.String name)
                               throws java.sql.SQLException

Specified by:

getClientInfo in interface java.sql.Connection

Throws:

java.sql.SQLException

createArrayOf

public java.sql.Array createArrayOf(java.lang.String typeName,
                                    java.lang.Object[] elements)
                             throws java.sql.SQLException

Specified by:

createArrayOf in interface java.sql.Connection

Throws:

java.sql.SQLException

createBlob

public java.sql.Blob createBlob()
                         throws java.sql.SQLException

Specified by:

createBlob in interface java.sql.Connection

Throws:

java.sql.SQLException

createClob

public java.sql.Clob createClob()
                         throws java.sql.SQLException

Specified by:

createClob in interface java.sql.Connection

Throws:

java.sql.SQLException

createNClob

public java.sql.NClob createNClob()
                           throws java.sql.SQLException

Specified by:

createNClob in interface java.sql.Connection

Throws:

java.sql.SQLException

createSQLXML

public java.sql.SQLXML createSQLXML()
                             throws java.sql.SQLException

Specified by:

createSQLXML in interface java.sql.Connection

Throws:

java.sql.SQLException

createStatement

public java.sql.Statement createStatement(int resultSetType,
                                          int resultSetConcurrency,
                                          int resultSetHoldability)
                                   throws java.sql.SQLException

Specified by:

createStatement in interface java.sql.Connection

Throws:

java.sql.SQLException

createStruct

public java.sql.Struct createStruct(java.lang.String typeName,
                                    java.lang.Object[] attributes)
                             throws java.sql.SQLException

Specified by:

createStruct in interface java.sql.Connection

Throws:

java.sql.SQLException

prepareCall

public java.sql.CallableStatement prepareCall(java.lang.String sql,
                                              int resultSetType,
                                              int resultSetConcurrency,
                                              int resultSetHoldability)
                                       throws java.sql.SQLException

Specified by:

prepareCall in interface java.sql.Connection

Throws:

java.sql.SQLException

prepareStatement

public java.sql.PreparedStatement prepareStatement(java.lang.String sql,
                                                   int autoGeneratedKeys)
                                            throws java.sql.SQLException

Specified by:

prepareStatement in interface java.sql.Connection

Throws:

java.sql.SQLException

prepareStatement

public java.sql.PreparedStatement prepareStatement(java.lang.String sql,
                                                   int[] columnIndexes)
                                            throws java.sql.SQLException

Specified by:

prepareStatement in interface java.sql.Connection

Throws:

java.sql.SQLException

prepareStatement

public java.sql.PreparedStatement prepareStatement(java.lang.String sql,
                                                   java.lang.String[] columnNames)
                                            throws java.sql.SQLException

Specified by:

prepareStatement in interface java.sql.Connection

Throws:

java.sql.SQLException

releaseSavepoint

public void releaseSavepoint(java.sql.Savepoint savepoint)
                      throws java.sql.SQLException

Specified by:

releaseSavepoint in interface java.sql.Connection

Throws:

java.sql.SQLException

rollback

public void rollback(java.sql.Savepoint savepoint)
              throws java.sql.SQLException

Specified by:

rollback in interface java.sql.Connection

Throws:

java.sql.SQLException

setHoldability

public void setHoldability(int holdability)
                    throws java.sql.SQLException

Specified by:

setHoldability in interface java.sql.Connection

Throws:

java.sql.SQLException

setSavepoint

public java.sql.Savepoint setSavepoint()
                                throws java.sql.SQLException

Specified by:

setSavepoint in interface java.sql.Connection

Throws:

java.sql.SQLException

setSavepoint

public java.sql.Savepoint setSavepoint(java.lang.String name)
                                throws java.sql.SQLException

Specified by:

setSavepoint in interface java.sql.Connection

Throws:

java.sql.SQLException

setTransactionIsolation

public void setTransactionIsolation(int level)
                             throws java.sql.SQLException

Specified by:

setTransactionIsolation in interface java.sql.Connection

Throws:

java.sql.SQLException

setTypeMap

public void setTypeMap(java.util.Map<java.lang.String,java.lang.Class<?>> map)
                throws java.sql.SQLException

Specified by:

setTypeMap in interface java.sql.Connection

Throws:

java.sql.SQLException