Class ConnectionChild

java.lang.Object

org.apache.derby.impl.jdbc.ConnectionChild

Direct Known Subclasses:

EmbedBlob, EmbedClob, EmbedDatabaseMetaData, EmbedResultSet, EmbedSavepoint, EmbedStatement

abstract class ConnectionChild
extends Object

Any class in the embedded JDBC driver (ie this package) that needs to refer back to the EmbedConnection object extends this class.

Field Summary

Fields

Modifier and Type	Field	Description
private Calendar	cal	Calendar for data operations.
(package private) final InternalDriver	factory	Factory for JDBC objects to be created.
private LanguageConnectionContext	lcc	Cached LanguageConnectionContext
(package private) EmbedConnection	localConn

Constructor Summary

Constructors

Constructor	Description
ConnectionChild(EmbedConnection conn)

Method Summary

Modifier and Type	Method	Description
(package private) final void	commitIfAutoCommit()	Perform a commit if autocommit is enabled.
(package private) final void	commitIfNeeded()	Perform a commit if one is needed.
(package private) Calendar	getCal()	Get and save a unique calendar object for this JDBC object.
(package private) final Object	getConnectionSynchronization()	Return an object to be used for connection synchronization.
(package private) final EmbedConnection	getEmbedConnection()	Return a reference to the EmbedConnection
(package private) LanguageConnectionContext	getLanguageConnectionContext(EmbedConnection conn)	Get and cache the LanguageConnectionContext for this connection.
(package private) static LanguageConnectionContext	getLCC(EmbedConnection conn)	Gets the LanguageConnectionContext for this connection.
(package private) final SQLException	handleException(Throwable t)	Handle any exception.
(package private) final void	needCommit()	If Autocommit is on, note that a commit is needed.
(package private) static SQLException	newSQLException(String messageId, Object... args)
(package private) final void	restoreContextStack()	Setup the context stack (a.k.a. context manager) for this connection.
protected static void	restoreIntrFlagIfSeen(boolean pushStack, EmbedConnection ec)
(package private) final void	setupContextStack()	Setup the context stack (a.k.a. context manager) for this connection.

Methods inherited from class Object

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

Field Details

localConn

EmbedConnection localConn

lcc

private LanguageConnectionContext lcc

Cached LanguageConnectionContext

factory

final InternalDriver factory

Factory for JDBC objects to be created.

cal

private Calendar cal

Calendar for data operations.

Constructor Details

ConnectionChild

ConnectionChild(EmbedConnection conn)

Method Details

getEmbedConnection

final EmbedConnection getEmbedConnection()

Return a reference to the EmbedConnection

getConnectionSynchronization

final Object getConnectionSynchronization()

Return an object to be used for connection synchronization.

handleException

final SQLException handleException(Throwable t)
                            throws SQLException

Handle any exception.

Throws:

SQLException - thrown if can't handle

See Also:

• EmbedConnection.handleException(Throwable)

needCommit

final void needCommit()

If Autocommit is on, note that a commit is needed.

See Also:

• EmbedConnection.needCommit

commitIfNeeded

final void commitIfNeeded()
                   throws SQLException

Perform a commit if one is needed.

Throws:

SQLException - thrown on failure

See Also:

• EmbedConnection.commitIfNeeded()

commitIfAutoCommit

final void commitIfAutoCommit()
                       throws SQLException

Perform a commit if autocommit is enabled.

Throws:

SQLException - thrown on failure

See Also:

• EmbedConnection.commitIfNeeded()

setupContextStack

final void setupContextStack()
                      throws SQLException

Setup the context stack (a.k.a. context manager) for this connection.

Throws:

SQLException - thrown on failure

See Also:

• EmbedConnection.setupContextStack()

restoreContextStack

final void restoreContextStack()
                        throws SQLException

Setup the context stack (a.k.a. context manager) for this connection.

Throws:

SQLException - thrown on failure

See Also:

• EmbedConnection.restoreContextStack()

getCal

Calendar getCal()

Get and save a unique calendar object for this JDBC object. No need to synchronize because multiple threads should not be using a single JDBC object. Even if they do there is only a small window where each would get its own Calendar for a single call.

newSQLException

static SQLException newSQLException(String messageId,
 Object... args)

restoreIntrFlagIfSeen

protected static void restoreIntrFlagIfSeen(boolean pushStack,
 EmbedConnection ec)

getLanguageConnectionContext

LanguageConnectionContext getLanguageConnectionContext(EmbedConnection conn)

Get and cache the LanguageConnectionContext for this connection.

getLCC

static LanguageConnectionContext getLCC(EmbedConnection conn)

Gets the LanguageConnectionContext for this connection.