wt.pds
Class OraclePds

java.lang.Object
  wt.pds.SQLDatabasePds
      wt.pds.OraclePds

All Implemented Interfaces:

PDSIfc

Direct Known Subclasses:

OraclePds81

public abstract class OraclePds

extends SQLDatabasePds

This concrete class provides standard SQL database persistent data services for Oracle.

Supported API: false

Extendable: false

Field Summary

private static String	CLASSNAME
private static int	DATABASE_CONNECTION_LOST_0
private static int	DATABASE_CONNECTION_LOST_1
private static int	DATABASE_CONNECTION_LOST_2
private static int	DEAD_LOCK_DETECTED
private static int	NO_DATA_FOUND
private static int	NO_DATA_TO_READ_FROM_SOCKET
private static int	PROTOCOL_VIOLATION
private static int[]	RECOVERABLE_CONNECTION_CODES
private static String	RESOURCE
private static int	ROW_LOCKED
private static int	SOCKET_WRITE_ERROR
private static int	UNIQUENESS_CONSTRAINT_VIOLATION
private static int	UNKNOWN_EXCEPTION

Fields inherited from class wt.pds.SQLDatabasePds

DMLGENERATOR

Constructor Summary

OraclePds()

Method Summary

abstract DataSource	getDataSource() Supported API: false
String	getNextSequence(WTConnection a_connection, String a_sequenceName) Return the next value from the SQL database sequence.
PersistenceException	handleSQLException(SQLException a_sqlException, Object a_obj, String a_messageKey) Handles an SQL exception specific to the Datastore instance.
protected boolean	isRecoverable(int a_errorCode)
void	lock(WTConnection a_connection, Object a_class, boolean a_wait) Perform a datastore lock on an Class table.
Persistable	lock(WTConnection a_connection, Persistable a_obj, boolean a_wait) Perform a SQL database lock on an Object.
protected void	validateLock(Persistable anObj)

Methods inherited from class wt.pds.SQLDatabasePds

buildLobMap, closeConnection, containSequenceColumn, execute, executeCall, expand, expand, getAttributeMapInfo, getDefaultTransactionIsolation, getDMLGenerator, getLob, getLobAsByteArray, getLobAsObject, handleException, initializeConnection, insert, insertPageResults, isLob, isLobLocator, isPersistent, processSQLException, query, refresh, refresh, remove, setLob, setLob, setObjectAsLob, update, update, validateExists, validateInsert

Methods inherited from class java.lang.Object

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

Field Detail

RESOURCE

private static final String RESOURCE

See Also:

Constant Field Values

CLASSNAME

private static final String CLASSNAME

UNKNOWN_EXCEPTION

private static final int UNKNOWN_EXCEPTION

See Also:

Constant Field Values

UNIQUENESS_CONSTRAINT_VIOLATION

private static final int UNIQUENESS_CONSTRAINT_VIOLATION

See Also:

Constant Field Values

DATABASE_CONNECTION_LOST_0

private static final int DATABASE_CONNECTION_LOST_0

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Constant Field Values

DATABASE_CONNECTION_LOST_1

private static final int DATABASE_CONNECTION_LOST_1

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Constant Field Values

DATABASE_CONNECTION_LOST_2

private static final int DATABASE_CONNECTION_LOST_2

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Constant Field Values

NO_DATA_TO_READ_FROM_SOCKET

private static final int NO_DATA_TO_READ_FROM_SOCKET

See Also:

Constant Field Values

SOCKET_WRITE_ERROR

private static final int SOCKET_WRITE_ERROR

See Also:

Constant Field Values

PROTOCOL_VIOLATION

private static final int PROTOCOL_VIOLATION

See Also:

Constant Field Values

NO_DATA_FOUND

private static final int NO_DATA_FOUND

See Also:

Constant Field Values

ROW_LOCKED

private static final int ROW_LOCKED

See Also:

Constant Field Values

DEAD_LOCK_DETECTED

private static final int DEAD_LOCK_DETECTED

See Also:

Constant Field Values

RECOVERABLE_CONNECTION_CODES

private static int[] RECOVERABLE_CONNECTION_CODES

Constructor Detail

OraclePds

public OraclePds()

Method Detail

lock

public Persistable lock(WTConnection a_connection,
                        Persistable a_obj,
                        boolean a_wait)
                 throws PersistenceException

Perform a SQL database lock on an Object.

Supported API: false

Specified by:

lock in interface PDSIfc

Specified by:

lock in class SQLDatabasePds

Parameters:

a_connection -

a_obj -

a_wait -

Returns:

Persistable

Throws:

PersistenceException

getNextSequence

public String getNextSequence(WTConnection a_connection,
                              String a_sequenceName)
                       throws PersistenceException

Return the next value from the SQL database sequence.

Supported API: false

Specified by:

getNextSequence in interface PDSIfc

Specified by:

getNextSequence in class SQLDatabasePds

Parameters:

a_connection -

a_sequenceName -

Returns:

String

Throws:

PersistenceException

handleSQLException

public PersistenceException handleSQLException(SQLException a_sqlException,
                                               Object a_obj,
                                               String a_messageKey)

Handles an SQL exception specific to the Datastore instance.

Supported API: false

Overrides:

handleSQLException in class SQLDatabasePds

Parameters:

a_sqlException -

a_obj -

a_messageKey -

Returns:

PersistenceException

getDataSource

public abstract DataSource getDataSource()

Supported API: false

Specified by:

getDataSource in interface PDSIfc

Specified by:

getDataSource in class SQLDatabasePds

Returns:

DataSource

lock

public void lock(WTConnection a_connection,
                 Object a_class,
                 boolean a_wait)
          throws PersistenceException

Perform a datastore lock on an Class table.

Supported API: false

Specified by:

lock in interface PDSIfc

Specified by:

lock in class SQLDatabasePds

Parameters:

a_connection -

a_class -

a_wait -

Throws:

PersistenceException

validateLock

protected void validateLock(Persistable anObj)
                     throws ObjectNotPersistentException

Throws:

ObjectNotPersistentException

isRecoverable

protected boolean isRecoverable(int a_errorCode)