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Oracle Fusion Middleware Java API Reference for Oracle TopLink 11g Release 1 (11.1.1) B32476-02 |
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public interface Session
Purpose: Define the TopLink session public interface.
Description: This interface is meant to clarify the public protocol into TopLink. It also allows for non-subclasses of Session to conform to the TopLink API. It should be used as the applications main interface into the TopLink API to ensure compatibility between all TopLink sessions.
Responsibilities:
UnitOfWork
, DatabaseSession
, AbstractSession
, DatabaseSessionImpl
, oracle.toplink.threetier.ServerSession, ClientSession
Method Summary | |
---|---|
Session |
acquireHistoricalSession(AsOfClause pastTime) ADVANCED: Returns a light weight read-only session where all objects are automatically read as of the specified past time. |
UnitOfWork |
acquireUnitOfWork() Return a unit of work for this session. |
void |
addEjbqlPlaceHolderQuery(DatabaseQuery query) ADVANCED: Add a pre-defined not yet parsed EJBQL String/query to the session to be parsed after descriptors are initialized. |
void |
addQuery(java.lang.String name, DatabaseQuery query) Add the query to the session queries with the given name. |
void |
clearIntegrityChecker() clear the integrityChecker, the integrityChecker holds all the ClassDescriptor Exceptions. |
void |
clearProfile() Clear the profiler, this will end the current profile opperation. |
boolean |
containsObjectInIdentityMap(java.lang.Object domainObject) Deprecated. |
boolean |
containsObjectInIdentityMap(java.util.Vector primaryKey, java.lang.Class theClass) Deprecated. |
boolean |
containsQuery(java.lang.String queryName) Return true if the pre-defined query is defined on the session. |
java.lang.Object |
copyObject(java.lang.Object original) Return a complete copy of the object. |
java.lang.Object |
copyObject(java.lang.Object original, ObjectCopyingPolicy policy) Return a complete copy of the object. |
boolean |
doesObjectExist(java.lang.Object object) Return if the object exists on the database or not. |
void |
dontLogMessages() Turn off logging |
int |
executeNonSelectingCall(Call call) Execute the call on the database. |
void |
executeNonSelectingSQL(java.lang.String sqlString) Execute the non-selecting (update/DML) SQL string. |
java.lang.Object |
executeQuery(DatabaseQuery query) Execute the database query. |
java.lang.Object |
executeQuery(DatabaseQuery query, java.util.Vector argumentValues) Return the results from exeucting the database query. |
java.lang.Object |
executeQuery(java.lang.String queryName) Execute the pre-defined query by name and return the result. |
java.lang.Object |
executeQuery(java.lang.String queryName, java.lang.Class domainClass) Execute the pre-defined query by name and return the result. |
java.lang.Object |
executeQuery(java.lang.String queryName, java.lang.Class domainClass, java.lang.Object arg1) Execute the pre-defined query by name and return the result. |
java.lang.Object |
executeQuery(java.lang.String queryName, java.lang.Class domainClass, java.lang.Object arg1, java.lang.Object arg2) Execute the pre-defined query by name and return the result. |
java.lang.Object |
executeQuery(java.lang.String queryName, java.lang.Class domainClass, java.lang.Object arg1, java.lang.Object arg2, java.lang.Object arg3) Execute the pre-defined query by name and return the result. |
java.lang.Object |
executeQuery(java.lang.String queryName, java.lang.Class domainClass, java.util.Vector argumentValues) Execute the pre-defined query by name and return the result. |
java.lang.Object |
executeQuery(java.lang.String queryName, java.lang.Object arg1) Execute the pre-defined query by name and return the result. |
java.lang.Object |
executeQuery(java.lang.String queryName, java.lang.Object arg1, java.lang.Object arg2) Execute the pre-defined query by name and return the result. |
java.lang.Object |
executeQuery(java.lang.String queryName, java.lang.Object arg1, java.lang.Object arg2, java.lang.Object arg3) Execute the pre-defined query by name and return the result. |
java.lang.Object |
executeQuery(java.lang.String queryName, java.util.Vector argumentValues) Execute the pre-defined query by name and return the result. |
java.util.Vector |
executeSelectingCall(Call call) Execute the call on the database and return the result. |
java.util.Vector |
executeSQL(java.lang.String sqlString) Execute the selecting SQL string. |
Session |
getActiveSession() Return the active session for the current active external (JTS) transaction. |
UnitOfWork |
getActiveUnitOfWork() Return the active unit of work for the current active external (JTS) transaction. |
java.util.Vector |
getAllFromIdentityMap(Expression selectionCriteria, java.lang.Class theClass, Record translationRow) Deprecated. |
java.util.Vector |
getAllFromIdentityMap(Expression selectionCriteria, java.lang.Class theClass, Record translationRow, InMemoryQueryIndirectionPolicy valueHolderPolicy) Deprecated. |
AsOfClause |
getAsOfClause() ADVANCED: Answers the past time this session is as of. |
CacheSynchronizationManager |
getCacheSynchronizationManager() Deprecated. since OracleAS TopLink 10g (10.1.3). This method is replaced by DatabaseSession.getCommandManager() |
ClassDescriptor |
getClassDescriptor(java.lang.Class theClass) ADVANCED: Return the descriptor specified for the class. |
ClassDescriptor |
getClassDescriptor(java.lang.Object domainObject) ADVANCED: Return the descriptor specified for the object's class. |
ClassDescriptor |
getClassDescriptorForAlias(java.lang.String alias) Return the descriptor for the alias. |
Login |
getDatasourceLogin() Return the login, the login holds any database connection information given. |
oracle.toplink.internal.databaseaccess.Platform |
getDatasourcePlatform() Return the database platform currently connected to. |
ClassDescriptor |
getDescriptor(java.lang.Class theClass) ADVANCED: Return the descriptor specified for the class. |
ClassDescriptor |
getDescriptor(java.lang.Object domainObject) ADVANCED: Return the descriptor specified for the object's class. |
ClassDescriptor |
getDescriptorForAlias(java.lang.String alias) Return the descriptor for the alias. |
java.util.Map |
getDescriptors() ADVANCED: Return all registered descriptors. |
java.util.List |
getEjbqlPlaceHolderQueries() ADVANCED: Return all pre-defined not yet parsed EJBQL queries. |
SessionEventManager |
getEventManager() Return the event manager. |
ExceptionHandler |
getExceptionHandler() Return the ExceptionHandler.Exception handler can catch errors that occur on queries or during database access. |
ExternalTransactionController |
getExternalTransactionController() Used for JTS integration. |
java.lang.Object |
getFromIdentityMap(Expression selectionCriteria, java.lang.Class theClass, Record translationRow) Deprecated. Since 3.6.3 |
java.lang.Object |
getFromIdentityMap(Expression selectionCriteria, java.lang.Class theClass, Record translationRow, InMemoryQueryIndirectionPolicy valueHolderPolicy) Deprecated. |
java.lang.Object |
getFromIdentityMap(java.lang.Object domainObject) Deprecated. |
java.lang.Object |
getFromIdentityMap(java.util.Vector primaryKey, java.lang.Class theClass) Deprecated. |
IdentityMapAccessor |
getIdentityMapAccessor() The IdentityMapAccessor is the preferred way of accessing IdentityMap funcitons This will return an object which implements an interface which exposes all public IdentityMap functions. |
IntegrityChecker |
getIntegrityChecker() Returns the integrityChecker,the integrityChecker holds all the ClassDescriptor Exceptions. |
java.io.Writer |
getLog() Return the writer to which an accessor writes logged messages and SQL. |
DatabaseLogin |
getLogin() Return the login, the login holds any database connection information given. |
int |
getLogLevel() Return the log level. |
int |
getLogLevel(java.lang.String category) Return the log level. |
java.lang.String |
getName() Return the name of the session. |
java.lang.Number |
getNextSequenceNumberValue(java.lang.Class domainClass) ADVANCED: Return the sequnce number from the database |
DatabasePlatform |
getPlatform() Return the database platform currently connected to. |
SessionProfiler |
getProfiler() Return the profiler. |
Project |
getProject() Return the project. |
java.util.Map |
getProperties() ADVANCED: Allow for user defined properties. |
java.lang.Object |
getProperty(java.lang.String name) ADVANCED: Returns the user defined property. |
java.util.Map |
getQueries() ADVANCED: Return all pre-defined queries. |
DatabaseQuery |
getQuery(java.lang.String name) Return the query from the session pre-defined queries with the given name. |
DatabaseQuery |
getQuery(java.lang.String name, java.util.Vector arguments) Return the query from the session pre-defined queries with the given name. |
ServerPlatform |
getServerPlatform() Return the server platform currently used. |
SessionLog |
getSessionLog() Return the session log to which an accessor logs messages and SQL. |
java.lang.Object |
getWriteLockValue(java.lang.Object domainObject) Deprecated. |
java.lang.Object |
getWriteLockValue(java.util.Vector primaryKey, java.lang.Class theClass) Deprecated. |
java.lang.Object |
handleException(java.lang.RuntimeException exception) Allow any WARNING level exceptions that occur within TopLink to be logged and handled by the exception handler. |
java.lang.Object |
handleSevere(java.lang.RuntimeException exception) Allow any SEVERE level exceptions that occur within TopLink to be logged and handled by the exception handler. |
boolean |
hasCacheSynchronizationManager() ADVANCED: Return true if a synchronisation policy exists |
boolean |
hasDescriptor(java.lang.Class theClass) ADVANCED: Return true if a descriptor exists for the given class. |
boolean |
hasExceptionHandler() Return if an exception handler is present. |
boolean |
hasExternalTransactionController() Used for JTS integration. |
void |
initializeAllIdentityMaps() Deprecated. |
void |
initializeIdentityMap(java.lang.Class theClass) Deprecated. |
void |
initializeIdentityMaps() Deprecated. |
boolean |
isClientSession() Return if this session is a client session. |
boolean |
isConnected() Return if this session is connected to the database. |
boolean |
isDatabaseSession() Return if this session is a database session. |
boolean |
isDistributedSession() Return if this session is a distributed session. |
boolean |
isFinalizersEnabled() Return if this session's decendants should use finalizers. |
boolean |
isInProfile() Return if a profiler is being used. |
boolean |
isRemoteSession() Return if this session is a remote session. |
boolean |
isRemoteUnitOfWork() Return if this session is a remote unit of work. |
boolean |
isServerSession() Return if this session is a server session. |
boolean |
isSessionBroker() Return if this session is a session broker. |
boolean |
isUnitOfWork() Return if this session is a unit of work. |
java.util.Vector |
keyFromObject(java.lang.Object domainObject) ADVANCED: Extract and return the primary key from the object. |
void |
log(SessionLogEntry entry) Log the log entry. |
void |
log(SessionLogEntry entry) Deprecated. Replaced by log(oracle.toplink.logging.SessionLogEntry) |
void |
logDebug(java.lang.String message) Deprecated. No direct replacement, moved to internal AbstractSession. |
void |
logDebug(java.lang.String message, java.lang.Object[] arguments) Deprecated. No direct replacement, moved to internal AbstractSession. |
void |
logException(java.lang.Exception exception) Deprecated. No direct replacement, moved to internal AbstractSession. |
void |
logMessage(java.lang.String message) Log a untranslated message to the TopLink log at FINER level. |
void |
logMessage(java.lang.String message, java.lang.Object[] arguments) Deprecated. Replaced by log(int level, String category, String message, Object[] params) |
void |
logMessages() Deprecated. Replaced by setLogLevel(int level, String category); |
void |
printIdentityMap(java.lang.Class businessClass) Deprecated. |
void |
printIdentityMaps() Deprecated. |
java.lang.Object |
putInIdentityMap(java.lang.Object domainObject) Deprecated. |
java.lang.Object |
putInIdentityMap(java.lang.Object domainObject, java.util.Vector key) Deprecated. |
java.lang.Object |
putInIdentityMap(java.lang.Object domainObject, java.util.Vector key, java.lang.Object writeLockValue) Deprecated. |
java.util.Vector |
readAllObjects(java.lang.Class domainClass) Read all of the instances of the class from the database. |
java.util.Vector |
readAllObjects(java.lang.Class domainClass, Call aCall) Read all the instances of the class from the database returned through execution the Call string. |
java.util.Vector |
readAllObjects(java.lang.Class domainClass, Expression selectionCriteria) Read all of the instances of the class from the database matching the given expression. |
java.util.Vector |
readAllObjects(java.lang.Class domainClass, java.lang.String sqlString) Deprecated. Replaced by readAllObjects(Class, Call) |
java.lang.Object |
readObject(java.lang.Class domainClass) Read the first instance of the class from the database. |
java.lang.Object |
readObject(java.lang.Class domainClass, Call aCall) Read the first instance of the class from the database returned through execution the Call string. |
java.lang.Object |
readObject(java.lang.Class domainClass, Expression selectionCriteria) Read the first instance of the class from the database matching the given expression. |
java.lang.Object |
readObject(java.lang.Class domainClass, java.lang.String sqlString) Deprecated. use readObject(Class domainClass, Call aCall) |
java.lang.Object |
readObject(java.lang.Object object) Use the example object to consruct a read object query by the objects primary key. |
java.lang.Object |
refreshObject(java.lang.Object object) Refresh the attributes of the object and of all of its private parts from the database. |
void |
release() Release the session. |
void |
removeFromIdentityMap(java.lang.Object domainObject) Deprecated. |
void |
removeFromIdentityMap(java.util.Vector key, java.lang.Class theClass) Deprecated. |
void |
removeProperty(java.lang.String property) Remove the user defined property. |
void |
removeQuery(java.lang.String queryName) Remove the query name from the set of pre-defined queries |
void |
setCacheSynchronizationManager(CacheSynchronizationManager synchronizationManager) Deprecated. since OracleAS TopLink 10g (10.1.3). This method is replaced by DatabaseSession.setCommandManager(CommandManager) |
void |
setExceptionHandler(ExceptionHandler exceptionHandler) Set the exceptionHandler. |
void |
setExternalTransactionController(ExternalTransactionController externalTransactionController) OBSOLETE: Previously used for JTS integration. |
void |
setIntegrityChecker(IntegrityChecker integrityChecker) Set the integrityChecker, the integrityChecker holds all the ClassDescriptor Exceptions. |
void |
setIsFinalizersEnabled(boolean isFinalizersEnabled) Set if this session's decendants should use finalizers. |
void |
setLog(java.io.Writer log) Set the writer to which an accessor writes logged messages and SQL. |
void |
setLogLevel(int level) Set the log level. |
void |
setName(java.lang.String name) Set the name of the session. |
void |
setProfiler(SessionProfiler profiler) Set the profiler for the session. |
void |
setProperty(java.lang.String propertyName, java.lang.Object propertyValue) Allow for user defined properties. |
void |
setSessionLog(SessionLog sessionLog) Set the session log to which an accessor logs messages and SQL. |
void |
setSessionLog(SessionLog sessionLog) Deprecated. |
void |
setShouldLogMessages(boolean shouldLogMessages) Deprecated. |
boolean |
shouldLog(int Level, java.lang.String category) Check if a message of the given level would actually be logged. |
boolean |
shouldLogMessages() Return if logging is enabled (false if log level is OFF) |
void |
updateWriteLockValue(java.lang.Object domainObject, java.lang.Object writeLockValue) Deprecated. |
void |
updateWriteLockValue(java.util.Vector primaryKey, java.lang.Class theClass, java.lang.Object writeLockValue) Deprecated. |
boolean |
usesExternalTransactionController() Deprecated. replaced by #hasExternalTransactionController() |
void |
validateCache() ADVANCED: This can be used to help debugging an object identity problem. |
Method Detail |
---|
Session acquireHistoricalSession(AsOfClause pastTime)
Use this Session to take advantage of Oracle 9 Release 2 Flashback or TopLink general history support and still be able to cache query results.
A special historical session is required as all objects read may be of different versions than those stored in the global session cache. Hence also known as IsolationSession, as all reads bypass the global cache.
An AsOfClause at the Session level will override any clauses set at the query or expression levels.
Example: Using a historical session to read past versions of objects.
AsOfClause pastTime = new AsOfClause(System.currentTimeMillis() - 24*60*60*1000); Session historicalSession = session.acquireSessionAsOf(pastTime); Employee pastEmployee = (Employee)historicalSession.readObject(Employee.class); Address pastAddress = pastEmployee.getAddress(); Vector pastProjects = pastEmployee.getProjects(); historicalSession.release();
Example: Using the above past employee to recover objects.
UnitOfWork uow = baseSession.acquireUnitOfWork(); Employee presentClone = (Employee)uow.readObject(pastEmployee); uow.deepMergeClone(pastEmployee); uow.commit();By definition all data as of a past time is frozen. So this session is also ideal for read consistent queries and read only transactions, as all queries will be against a consistent and immutable snap shot of the data.
- Parameters:
pastTime
- Represents a valid snap shot time.- Throws:
ValidationException
- ifthis
not a ClientSession, plain Session, or SessionBroker.- See Also:
AsOfClause
,Expression.asOf(oracle.toplink.history.AsOfClause)
,ObjectLevelReadQuery.setAsOfClause(oracle.toplink.history.AsOfClause)
,HistoryPolicy
acquireUnitOfWork
UnitOfWork acquireUnitOfWork()
- Return a unit of work for this session. The unit of work is an object level transaction that allows a group of changes to be applied as a unit. The return value should be used as the oracle.toplink.sessions.UnitOfWork interface
- See Also:
UnitOfWork
addQuery
void addQuery(java.lang.String name, DatabaseQuery query)
- Add the query to the session queries with the given name. This allows for common queries to be pre-defined, reused and executed by name.
addEjbqlPlaceHolderQuery
void addEjbqlPlaceHolderQuery(DatabaseQuery query)
- ADVANCED: Add a pre-defined not yet parsed EJBQL String/query to the session to be parsed after descriptors are initialized.
- See Also:
#getAllQueries()
clearIntegrityChecker
void clearIntegrityChecker()
- clear the integrityChecker, the integrityChecker holds all the ClassDescriptor Exceptions.
clearProfile
void clearProfile()
- Clear the profiler, this will end the current profile opperation.
containsObjectInIdentityMap
boolean containsObjectInIdentityMap(java.lang.Object domainObject)
- Deprecated.
- ADVANCED: Return if their is an object for the primary key.
- See Also:
getIdentityMapAccessor()
,IdentityMapAccessor
containsObjectInIdentityMap
boolean containsObjectInIdentityMap(java.util.Vector primaryKey, java.lang.Class theClass)
- Deprecated.
- ADVANCED: Return if their is an object for the primary key.
- See Also:
getIdentityMapAccessor()
,IdentityMapAccessor
containsQuery
boolean containsQuery(java.lang.String queryName)
- Return true if the pre-defined query is defined on the session.
copyObject
java.lang.Object copyObject(java.lang.Object original)
- Return a complete copy of the object. This can be used to obtain a scatch copy of an object, or for templatizing an existing object into another new object. The object and all of its privately owned parts will be copied, the object's primary key will be reset to null.
- See Also:
copyObject(Object, ObjectCopyingPolicy)
copyObject
java.lang.Object copyObject(java.lang.Object original, ObjectCopyingPolicy policy)
- Return a complete copy of the object. This can be used to obtain a scatch copy of an object, or for templatizing an existing object into another new object. The object copying policy allow for the depth, and reseting of the primary key to null, to be specified.
doesObjectExist
boolean doesObjectExist(java.lang.Object object) throws DatabaseException
- Return if the object exists on the database or not. This always checks existence on the database.
- Throws:
DatabaseException
dontLogMessages
void dontLogMessages()
- Turn off logging
executeNonSelectingCall
int executeNonSelectingCall(Call call)
- Execute the call on the database. The row count is returned. The call can be a stored procedure call, SQL call or other type of call.
Example:
session.executeNonSelectingCall(new SQLCall("Delete from Employee");
- See Also:
executeSelectingCall(Call)
executeNonSelectingSQL
void executeNonSelectingSQL(java.lang.String sqlString)
- Execute the non-selecting (update/DML) SQL string. Warning: Allowing an unverified SQL string to be passed into this method makes your application vulnerable to SQL injection attacks.
executeQuery
java.lang.Object executeQuery(java.lang.String queryName)
- Execute the pre-defined query by name and return the result. Queries can be pre-defined and named to allow for their reuse.
- See Also:
addQuery(String, DatabaseQuery)
executeQuery
java.lang.Object executeQuery(java.lang.String queryName, java.lang.Class domainClass)
- Execute the pre-defined query by name and return the result. Queries can be pre-defined and named to allow for their reuse. The class is the descriptor in which the query was pre-defined.
- See Also:
DescriptorQueryManager.addQuery(String, DatabaseQuery)
executeQuery
java.lang.Object executeQuery(java.lang.String queryName, java.lang.Class domainClass, java.lang.Object arg1)
- Execute the pre-defined query by name and return the result. Queries can be pre-defined and named to allow for their reuse. The class is the descriptor in which the query was pre-defined.
- See Also:
DescriptorQueryManager.addQuery(String, DatabaseQuery)
executeQuery
java.lang.Object executeQuery(java.lang.String queryName, java.lang.Class domainClass, java.lang.Object arg1, java.lang.Object arg2)
- Execute the pre-defined query by name and return the result. Queries can be pre-defined and named to allow for their reuse. The class is the descriptor in which the query was pre-defined.
- See Also:
DescriptorQueryManager.addQuery(String, DatabaseQuery)
executeQuery
java.lang.Object executeQuery(java.lang.String queryName, java.lang.Class domainClass, java.lang.Object arg1, java.lang.Object arg2, java.lang.Object arg3)
- Execute the pre-defined query by name and return the result. Queries can be pre-defined and named to allow for their reuse. The class is the descriptor in which the query was pre-defined.
- See Also:
DescriptorQueryManager.addQuery(String, DatabaseQuery)
executeQuery
java.lang.Object executeQuery(java.lang.String queryName, java.lang.Class domainClass, java.util.Vector argumentValues)
- Execute the pre-defined query by name and return the result. Queries can be pre-defined and named to allow for their reuse. The class is the descriptor in which the query was pre-defined.
- See Also:
DescriptorQueryManager.addQuery(String, DatabaseQuery)
executeQuery
java.lang.Object executeQuery(java.lang.String queryName, java.lang.Object arg1)
- Execute the pre-defined query by name and return the result. Queries can be pre-defined and named to allow for their reuse.
- See Also:
addQuery(String, DatabaseQuery)
executeQuery
java.lang.Object executeQuery(java.lang.String queryName, java.lang.Object arg1, java.lang.Object arg2)
- Execute the pre-defined query by name and return the result. Queries can be pre-defined and named to allow for their reuse.
- See Also:
addQuery(String, DatabaseQuery)
executeQuery
java.lang.Object executeQuery(java.lang.String queryName, java.lang.Object arg1, java.lang.Object arg2, java.lang.Object arg3)
- Execute the pre-defined query by name and return the result. Queries can be pre-defined and named to allow for their reuse.
- See Also:
addQuery(String, DatabaseQuery)
executeQuery
java.lang.Object executeQuery(java.lang.String queryName, java.util.Vector argumentValues)
- Execute the pre-defined query by name and return the result. Queries can be pre-defined and named to allow for their reuse.
- See Also:
addQuery(String, DatabaseQuery)
executeQuery
java.lang.Object executeQuery(DatabaseQuery query) throws TopLinkException
- Execute the database query. A query is a database operation such as reading or writting. The query allows for the operation to be customized for such things as, performance, depth, caching, etc.
- Throws:
TopLinkException
- See Also:
DatabaseQuery
executeQuery
java.lang.Object executeQuery(DatabaseQuery query, java.util.Vector argumentValues)
- Return the results from exeucting the database query. the arguments are passed in as a vector
executeSelectingCall
java.util.Vector executeSelectingCall(Call call)
- Execute the call on the database and return the result. The call must return a value, if no value is return executeNonSelectCall must be used. The call can be a stored procedure call, SQL call or other type of call. A vector of database rows is returned, database row implements Java 2 Map which should be used to access the data.
Example:
session.executeSelectingCall(new SQLCall("Select * from Employee");
- See Also:
executeNonSelectingCall(Call)
executeSQL
java.util.Vector executeSQL(java.lang.String sqlString)
- Execute the selecting SQL string. A Vector of DatabaseRecords are returned. Warning: Allowing an unverified SQL string to be passed into this method makes your application vulnerable to SQL injection attacks.
getActiveSession
Session getActiveSession()
- Return the active session for the current active external (JTS) transaction. This should only be used with JTS and will return the session if no external transaction exists.
getActiveUnitOfWork
UnitOfWork getActiveUnitOfWork()
- Return the active unit of work for the current active external (JTS) transaction. This should only be used with JTS and will return null if no external transaction exists.
getClassDescriptor
ClassDescriptor getClassDescriptor(java.lang.Class theClass)
- ADVANCED: Return the descriptor specified for the class. If the class does not have a descriptor but implements an interface that is also implemented by one of the classes stored in the hashtable, that descriptor will be stored under the new class.
getClassDescriptor
ClassDescriptor getClassDescriptor(java.lang.Object domainObject)
- ADVANCED: Return the descriptor specified for the object's class.
getClassDescriptorForAlias
ClassDescriptor getClassDescriptorForAlias(java.lang.String alias)
- Return the descriptor for the alias.
getAllFromIdentityMap
java.util.Vector getAllFromIdentityMap(Expression selectionCriteria, java.lang.Class theClass, Record translationRow, InMemoryQueryIndirectionPolicy valueHolderPolicy) throws QueryException
- Deprecated.
- ADVANCED: Query the cache in-memory. If the expression is too complex an exception will be thrown.
- Throws:
QueryException
- See Also:
getIdentityMapAccessor()
,IdentityMapAccessor
getAllFromIdentityMap
java.util.Vector getAllFromIdentityMap(Expression selectionCriteria, java.lang.Class theClass, Record translationRow) throws QueryException
- Deprecated.
- ADVANCED: Query the cache in-memory. If the expression is too complex an exception will be thrown.
- Throws:
QueryException
- See Also:
getIdentityMapAccessor()
,IdentityMapAccessor
getAsOfClause
AsOfClause getAsOfClause()
- ADVANCED: Answers the past time this session is as of. Indicates whether or not this is a special historical session where all objects are read relative to a particular point in time.
- Returns:
- An immutable object representation of the past time.
null
if no clause set, or this a regular session.- See Also:
acquireHistoricalSession(oracle.toplink.history.AsOfClause)
getCacheSynchronizationManager
CacheSynchronizationManager getCacheSynchronizationManager()
- Deprecated. since OracleAS TopLink 10g (10.1.3). This method is replaced by
DatabaseSession.getCommandManager()
- ADVANCED: Returns the Synchronization Policy for this session.
getDescriptor
ClassDescriptor getDescriptor(java.lang.Class theClass)
- ADVANCED: Return the descriptor specified for the class. If the class does not have a descriptor but implements an interface that is also implemented by one of the classes stored in the hashtable, that descriptor will be stored under the new class.
getDescriptor
ClassDescriptor getDescriptor(java.lang.Object domainObject)
- ADVANCED: Return the descriptor specified for the object's class.
getDescriptorForAlias
ClassDescriptor getDescriptorForAlias(java.lang.String alias)
- Return the descriptor for the alias. UnitOfWork delegates this to the parent
getDescriptors
java.util.Map getDescriptors()
- ADVANCED: Return all registered descriptors.
getEjbqlPlaceHolderQueries
java.util.List getEjbqlPlaceHolderQueries()
- ADVANCED: Return all pre-defined not yet parsed EJBQL queries.
- See Also:
#getAllQueries()
getEventManager
SessionEventManager getEventManager()
- Return the event manager. The event manager can be used to register for various session events.
getExceptionHandler
ExceptionHandler getExceptionHandler()
- Return the ExceptionHandler.Exception handler can catch errors that occur on queries or during database access.
getExternalTransactionController
ExternalTransactionController getExternalTransactionController()
- Used for JTS integration. If your application requires to have JTS control transactions instead of TopLink an external transaction controler must be specified. TopLink provides JTS controlers for JTS 1.0 and Weblogic's JTS.
- See Also:
JTATransactionController
getFromIdentityMap
java.lang.Object getFromIdentityMap(java.lang.Object domainObject)
- Deprecated.
- ADVANCED: Return the object from the identity with primary and class of the given object.
- See Also:
getIdentityMapAccessor()
,IdentityMapAccessor
getFromIdentityMap
java.lang.Object getFromIdentityMap(java.util.Vector primaryKey, java.lang.Class theClass)
- Deprecated.
- ADVANCED: Return the object from the identity with the primary and class.
- See Also:
getIdentityMapAccessor()
,IdentityMapAccessor
getFromIdentityMap
java.lang.Object getFromIdentityMap(Expression selectionCriteria, java.lang.Class theClass, Record translationRow) throws QueryException
- Deprecated. Since 3.6.3
- ADVANCED: Query the cache in-memory. If the object is not found null is returned. If the expression is too complex an exception will be thrown.
- Throws:
QueryException
- See Also:
getIdentityMapAccessor()
,IdentityMapAccessor
getFromIdentityMap
java.lang.Object getFromIdentityMap(Expression selectionCriteria, java.lang.Class theClass, Record translationRow, InMemoryQueryIndirectionPolicy valueHolderPolicy) throws QueryException
- Deprecated.
- ADVANCED: Query the cache in-memory. If the object is not found null is returned. If the expression is too complex an exception will be thrown.
- Throws:
QueryException
- See Also:
getIdentityMapAccessor()
,IdentityMapAccessor
getIdentityMapAccessor
IdentityMapAccessor getIdentityMapAccessor()
- The IdentityMapAccessor is the preferred way of accessing IdentityMap funcitons This will return an object which implements an interface which exposes all public IdentityMap functions.
getIntegrityChecker
IntegrityChecker getIntegrityChecker()
- Returns the integrityChecker,the integrityChecker holds all the ClassDescriptor Exceptions.
getLog
java.io.Writer getLog()
- Return the writer to which an accessor writes logged messages and SQL. If not set, this reference defaults to a writer on System.out. To enable logging logMessages must be turned on.
- See Also:
logMessages()
getPlatform
DatabasePlatform getPlatform()
- Return the database platform currently connected to. The platform is used for database specific behavoir. NOTE: this must only be used for relational specific usage, it will fail for non-relational datasources.
getDatasourcePlatform
oracle.toplink.internal.databaseaccess.Platform getDatasourcePlatform()
- Return the database platform currently connected to. The platform is used for database specific behavoir.
getLogin
DatabaseLogin getLogin()
- Return the login, the login holds any database connection information given. NOTE: this must only be used for relational specific usage, it will fail for non-relational datasources.
getDatasourceLogin
Login getDatasourceLogin()
- Return the login, the login holds any database connection information given. This return the Login interface and may need to be cast to the datasource specific implementation.
getName
java.lang.String getName()
- Return the name of the session. This is used with the session broker, or to give the session a more meaningful name.
getNextSequenceNumberValue
java.lang.Number getNextSequenceNumberValue(java.lang.Class domainClass)
- ADVANCED: Return the sequnce number from the database
getProfiler
SessionProfiler getProfiler()
- Return the profiler. The profiler is a tool that can be used to determine performance bottlenecks. The profiler can be queries to print summaries and configure for logging purposes.
getProject
Project getProject()
- Return the project. The project includes the login and descriptor and other configuration information.
getProperties
java.util.Map getProperties()
- ADVANCED: Allow for user defined properties.
getProperty
java.lang.Object getProperty(java.lang.String name)
- ADVANCED: Returns the user defined property.
getQueries
java.util.Map getQueries()
- ADVANCED: Return all pre-defined queries.
getQuery
DatabaseQuery getQuery(java.lang.String name)
- Return the query from the session pre-defined queries with the given name. This allows for common queries to be pre-defined, reused and executed by name.
getQuery
DatabaseQuery getQuery(java.lang.String name, java.util.Vector arguments)
- Return the query from the session pre-defined queries with the given name. This allows for common queries to be pre-defined, reused and executed by name.
getServerPlatform
ServerPlatform getServerPlatform()
- Return the server platform currently used. The server platform is used for application server specific behavior.
getSessionLog
SessionLog getSessionLog()
- Return the session log to which an accessor logs messages and SQL. If not set, this will default to a session log on a writer on System.out. To enable logging, logMessages must be turned on.
- See Also:
logMessages()
getWriteLockValue
java.lang.Object getWriteLockValue(java.lang.Object domainObject)
- Deprecated.
- ADVANCED: Extract the write lock value from the identity map.
- See Also:
getIdentityMapAccessor()
,IdentityMapAccessor
getWriteLockValue
java.lang.Object getWriteLockValue(java.util.Vector primaryKey, java.lang.Class theClass)
- Deprecated.
- ADVANCED: Extract the write lock value from the identity map.
- See Also:
getIdentityMapAccessor()
,IdentityMapAccessor
handleException
java.lang.Object handleException(java.lang.RuntimeException exception) throws java.lang.RuntimeException
- Allow any WARNING level exceptions that occur within TopLink to be logged and handled by the exception handler.
- Throws:
java.lang.RuntimeException
hasCacheSynchronizationManager
boolean hasCacheSynchronizationManager()
- ADVANCED: Return true if a synchronisation policy exists
hasDescriptor
boolean hasDescriptor(java.lang.Class theClass)
- ADVANCED: Return true if a descriptor exists for the given class.
hasExceptionHandler
boolean hasExceptionHandler()
- Return if an exception handler is present.
hasExternalTransactionController
boolean hasExternalTransactionController()
- Used for JTS integration. If your application requires to have JTS control transactions instead of TopLink an external transaction controler must be specified. TopLink provides JTS controlers for JTS 1.0 and Weblogic's JTS.
- See Also:
JTATransactionController
initializeAllIdentityMaps
void initializeAllIdentityMaps()
- Deprecated.
- Reset the entire object cache.
NOTE: be careful using this method. This method blows away both this session's and its parents caches, this includes the server cache or any other cache. This throws away any objects that have been read in. Extream caution should be used before doing this because object identity will no longer be maintained for any objects currently read in. This should only be called if the application knows that it no longer has references to object held in the cache.
- See Also:
getIdentityMapAccessor()
,IdentityMapAccessor
initializeIdentityMap
void initializeIdentityMap(java.lang.Class theClass)
- Deprecated.
- Reset the identity map for only the instances of the class. For inheritence the user must make sure that they only use the root class. Caution must be used in doing this to ensure that the objects within the identity map are not referenced from other objects of other classes or from the application.
- See Also:
getIdentityMapAccessor()
,IdentityMapAccessor
initializeIdentityMaps
void initializeIdentityMaps()
- Deprecated.
- Reset the entire object cache. This throws away any objects that have been read in. Extream caution should be used before doing this because object identity will no longer be maintained for any objects currently read in. This should only be called if the application knows that it no longer has references to object held in the cache.
- See Also:
getIdentityMapAccessor()
,IdentityMapAccessor
isClientSession
boolean isClientSession()
- Return if this session is a client session.
isConnected
boolean isConnected()
- Return if this session is connected to the database.
isDatabaseSession
boolean isDatabaseSession()
- Return if this session is a database session.
isDistributedSession
boolean isDistributedSession()
- Return if this session is a distributed session.
isInProfile
boolean isInProfile()
- Return if a profiler is being used.
isRemoteSession
boolean isRemoteSession()
- Return if this session is a remote session.
isServerSession
boolean isServerSession()
- Return if this session is a server session.
isSessionBroker
boolean isSessionBroker()
- Return if this session is a session broker.
isUnitOfWork
boolean isUnitOfWork()
- Return if this session is a unit of work.
isRemoteUnitOfWork
boolean isRemoteUnitOfWork()
- Return if this session is a remote unit of work.
keyFromObject
java.util.Vector keyFromObject(java.lang.Object domainObject) throws ValidationException
- ADVANCED: Extract and return the primary key from the object.
- Throws:
ValidationException
log
void log(SessionLogEntry entry)
- Log the log entry.
log
void log(SessionLogEntry entry)
- Deprecated. Replaced by log(oracle.toplink.logging.SessionLogEntry)
- OBSOLETE:
- See Also:
log(oracle.toplink.logging.SessionLogEntry)
logDebug
void logDebug(java.lang.String message, java.lang.Object[] arguments)
- Deprecated. No direct replacement, moved to internal AbstractSession.
- OBSOLETE:
- See Also:
logMessage(String)
logDebug
void logDebug(java.lang.String message)
- Deprecated. No direct replacement, moved to internal AbstractSession.
- OBSOLETE:
- See Also:
logMessage(String)
logException
void logException(java.lang.Exception exception)
- Deprecated. No direct replacement, moved to internal AbstractSession.
- OBSOLETE:
logMessage
void logMessage(java.lang.String message, java.lang.Object[] arguments)
- Deprecated. Replaced by log(int level, String category, String message, Object[] params)
- OBSOLETE:
- See Also:
logMessage(String)
logMessage
void logMessage(java.lang.String message)
- Log a untranslated message to the TopLink log at FINER level.
logMessages
void logMessages()
- Deprecated. Replaced by setLogLevel(int level, String category);
- OBSOLETE:
- See Also:
setLogLevel(int level)
printIdentityMap
void printIdentityMap(java.lang.Class businessClass)
- Deprecated.
- Used to print all the objects in the identity map of the passed in class. The output of this method will be logged to this session's SessionLog at SEVERE level.
- See Also:
getIdentityMapAccessor()
,IdentityMapAccessor
printIdentityMaps
void printIdentityMaps()
- Deprecated.
- Used to print all the objects in every identity map in this session. The output of this method will be logged to this session's SessionLog at SEVERE level.
- See Also:
getIdentityMapAccessor()
,IdentityMapAccessor
putInIdentityMap
java.lang.Object putInIdentityMap(java.lang.Object domainObject)
- Deprecated.
- ADVANCED: Register the object with the identity map. The object must always be registered with its version number if optimistic locking is used.
- See Also:
getIdentityMapAccessor()
,IdentityMapAccessor
putInIdentityMap
java.lang.Object putInIdentityMap(java.lang.Object domainObject, java.util.Vector key)
- Deprecated.
- ADVANCED: Register the object with the identity map. The object must always be registered with its version number if optimistic locking is used.
- See Also:
getIdentityMapAccessor()
,IdentityMapAccessor
putInIdentityMap
java.lang.Object putInIdentityMap(java.lang.Object domainObject, java.util.Vector key, java.lang.Object writeLockValue)
- Deprecated.
- ADVANCED: Register the object with the identity map. The object must always be registered with its version number if optimistic locking is used.
- See Also:
getIdentityMapAccessor()
,IdentityMapAccessor
readAllObjects
java.util.Vector readAllObjects(java.lang.Class domainClass) throws DatabaseException
- Read all of the instances of the class from the database. This operation can be customized through using a ReadAllQuery, or through also passing in a selection criteria.
- Throws:
DatabaseException
- See Also:
ReadAllQuery
,readAllObjects(Class, Expression)
readAllObjects
java.util.Vector readAllObjects(java.lang.Class domainClass, java.lang.String sqlString) throws DatabaseException
- Deprecated. Replaced by
readAllObjects(Class, Call)
- OBSOLETE: Read all of the instances of the class from the database returned through execution the SQL string. The SQL string must be a valid SQL select statement or selecting stored procedure call. This operation can be customized through using a ReadAllQuery. Warning: Allowing an unverified SQL string to be passed into this method makes your application vulnerable to SQL injection attacks.
- Throws:
DatabaseException
readAllObjects
java.util.Vector readAllObjects(java.lang.Class domainClass, Call aCall) throws DatabaseException
- Read all the instances of the class from the database returned through execution the Call string. The Call can be an SQLCall or EJBQLCall. example: session.readAllObjects(Employee.class, new SQLCall("SELECT * FROM EMPLOYEE"));
- Throws:
DatabaseException
- See Also:
SQLCall
,EJBQLCall
readAllObjects
java.util.Vector readAllObjects(java.lang.Class domainClass, Expression selectionCriteria) throws DatabaseException
- Read all of the instances of the class from the database matching the given expression. This operation can be customized through using a ReadAllQuery.
- Throws:
DatabaseException
- See Also:
ReadAllQuery
readObject
java.lang.Object readObject(java.lang.Class domainClass) throws DatabaseException
- Read the first instance of the class from the database. This operation can be customized through using a ReadObjectQuery, or through also passing in a selection criteria. By default, this method executes a query without selection criteria and consequently it will always result in a database access even if an instance of the specified Class exists in the cache. Executing a query with selection criteria allows you to avoid a database access if the selected instance is in the cache. Because of this, you may whish to consider a readObject method that takes selection criteria, such as:
readObject(Class, Call)
,readObject(Class, Expression)
, orreadObject(Object)
.
- Throws:
DatabaseException
- See Also:
ReadObjectQuery
,readAllObjects(Class, Expression)
readObject
java.lang.Object readObject(java.lang.Class domainClass, java.lang.String sqlString) throws DatabaseException
- Deprecated. use readObject(Class domainClass, Call aCall)
- OBSOLETE: Read the first instance of the class from the database returned through execution the SQL string. The SQL string must be a valid SQL select statement or selecting stored procedure call. This operation can be customized through using a ReadObjectQuery. Warning: Allowing an unverified SQL string to be passed into this method makes your application vulnerable to SQL injection attacks.
- Throws:
DatabaseException
- See Also:
ReadObjectQuery
readObject
java.lang.Object readObject(java.lang.Class domainClass, Call aCall) throws DatabaseException
- Read the first instance of the class from the database returned through execution the Call string. The Call can be an SQLCall or EJBQLCall. example: session.readObject(Employee.class, new SQLCall("SELECT * FROM EMPLOYEE"));
- Throws:
DatabaseException
- See Also:
SQLCall
,EJBQLCall
readObject
java.lang.Object readObject(java.lang.Class domainClass, Expression selectionCriteria) throws DatabaseException
- Read the first instance of the class from the database matching the given expression. This operation can be customized through using a ReadObjectQuery.
- Throws:
DatabaseException
- See Also:
ReadObjectQuery
readObject
java.lang.Object readObject(java.lang.Object object) throws DatabaseException
- Use the example object to consruct a read object query by the objects primary key. This will read the object from the database with the same primary key as the object or null if no object is found.
- Throws:
DatabaseException
refreshObject
java.lang.Object refreshObject(java.lang.Object object)
- Refresh the attributes of the object and of all of its private parts from the database. This can be used to ensure the object is up to date with the database. Caution should be used when using this to make sure the application has no un commited changes to the object.
release
void release()
- Release the session. This does nothing by default, but allows for other sessions such as the ClientSession to do something.
removeFromIdentityMap
void removeFromIdentityMap(java.lang.Object domainObject)
- Deprecated.
- ADVANCED: Remove the object from the object cache. Caution should be used when calling to avoid violating object identity. The application should only call this is it knows that no references to the object exist.
- See Also:
getIdentityMapAccessor()
,IdentityMapAccessor
removeFromIdentityMap
void removeFromIdentityMap(java.util.Vector key, java.lang.Class theClass)
- Deprecated.
- ADVANCED: Remove the object from the object cache.
- See Also:
getIdentityMapAccessor()
,IdentityMapAccessor
removeProperty
void removeProperty(java.lang.String property)
- Remove the user defined property.
removeQuery
void removeQuery(java.lang.String queryName)
- Remove the query name from the set of pre-defined queries
setCacheSynchronizationManager
void setCacheSynchronizationManager(CacheSynchronizationManager synchronizationManager)
- Deprecated. since OracleAS TopLink 10g (10.1.3). This method is replaced by
DatabaseSession.setCommandManager(CommandManager)
- ADVANCED: Sets synchronization policy for this session.
setExceptionHandler
void setExceptionHandler(ExceptionHandler exceptionHandler)
- Set the exceptionHandler. Exception handler can catch errors that occur on queries or during database access.
setExternalTransactionController
void setExternalTransactionController(ExternalTransactionController externalTransactionController)
- OBSOLETE: Previously used for JTS integration. If your application requires to have JTS control transactions a ServerPlatform must be specified before login, either via your sessions.xml or in code. A subclass of ServerPlatformBase should handle your requirements. If not, we suggest creating your own subclass of ServerPlatformBase to specify the external transaction controller class.
- See Also:
- oracle.toplink.platform.server.CustomServerPlatform
setIntegrityChecker
void setIntegrityChecker(IntegrityChecker integrityChecker)
- Set the integrityChecker, the integrityChecker holds all the ClassDescriptor Exceptions.
setLog
void setLog(java.io.Writer log)
- Set the writer to which an accessor writes logged messages and SQL. If not set, this reference defaults to a writer on System.out. To enable logging logMessages() is used.
- See Also:
logMessages()
setName
void setName(java.lang.String name)
- Set the name of the session. This is used with the session broker, or to give the session a more meaningful name.
setProfiler
void setProfiler(SessionProfiler profiler)
- Set the profiler for the session. This allows for performance operations to be profiled.
setProperty
void setProperty(java.lang.String propertyName, java.lang.Object propertyValue)
- Allow for user defined properties.
setSessionLog
void setSessionLog(SessionLog sessionLog)
- Set the session log to which an accessor logs messages and SQL. If not set, this will default to a session log on a writer on System.out. To enable logging, logMessages must be turned on.
- See Also:
logMessages()
setSessionLog
void setSessionLog(SessionLog sessionLog)
- Deprecated.
- OBSOLETE: Replaced by setSessionLog(oracle.toplink.logging.SessionLog);
- See Also:
setSessionLog(oracle.toplink.logging.SessionLog)
setShouldLogMessages
void setShouldLogMessages(boolean shouldLogMessages)
- Deprecated.
- OBSOLETE: Replaced by setLogLevel(int level, String category);
- See Also:
setLogLevel(int)
shouldLogMessages
boolean shouldLogMessages()
- Return if logging is enabled (false if log level is OFF)
updateWriteLockValue
void updateWriteLockValue(java.lang.Object domainObject, java.lang.Object writeLockValue)
- Deprecated.
- ADVANCED: Update the write lock value in the identity map.
- See Also:
getIdentityMapAccessor()
,IdentityMapAccessor
updateWriteLockValue
void updateWriteLockValue(java.util.Vector primaryKey, java.lang.Class theClass, java.lang.Object writeLockValue)
- Deprecated.
- ADVANCED: Update the write lock value in the identity map.
- See Also:
getIdentityMapAccessor()
,IdentityMapAccessor
usesExternalTransactionController
boolean usesExternalTransactionController()
- Deprecated. replaced by #hasExternalTransactionController()
- OBSOLETE: This should no longer be used.
validateCache
void validateCache()
- ADVANCED: This can be used to help debugging an object identity problem. An object identity problem is when an object in the cache references an object not in the cache. This method will validate that all cached objects are in a correct state.
getLogLevel
int getLogLevel(java.lang.String category)
- Return the log level.
Possible values for log level and category are listed in SessionLog.
- See Also:
SessionLog
getLogLevel
int getLogLevel()
- Return the log level.
Possible values for log level are listed in SessionLog.
- See Also:
SessionLog
setLogLevel
void setLogLevel(int level)
- Set the log level.
Possible values for log level are listed in SessionLog.
- See Also:
SessionLog
shouldLog
boolean shouldLog(int Level, java.lang.String category)
- Check if a message of the given level would actually be logged.
Possible values for log level and category are listed in SessionLog.
- See Also:
SessionLog
handleSevere
java.lang.Object handleSevere(java.lang.RuntimeException exception) throws java.lang.RuntimeException
- Allow any SEVERE level exceptions that occur within TopLink to be logged and handled by the exception handler.
- Throws:
java.lang.RuntimeException
isFinalizersEnabled
boolean isFinalizersEnabled()
- Return if this session's decendants should use finalizers. The allows certain finalizers such as in ClientSesion to be enabled. These are disable by default for performance reasons.
setIsFinalizersEnabled
void setIsFinalizersEnabled(boolean isFinalizersEnabled)
- Set if this session's decendants should use finalizers. The allows certain finalizers such as in ClientSesion to be enabled. These are disable by default for performance reasons.
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