org.tentackle.session

Class SessionUtilities

java.lang.Object

org.tentackle.session.SessionUtilities

@Service(value=SessionUtilities.class)
public class SessionUtilities
extends Object

Utility methods for session related stuff.

Author:

harald

Field Summary

Fields

Modifier and Type	Field and Description
static long	minSessionKeepAliveMillis minimum keep alive interval in milliseconds.

Constructor Summary

Constructors

Constructor and Description
SessionUtilities() Creates a utility instance.

Method Summary

Modifier and Type	Method and Description
int	determineClassId(Class<?> clazz) Determines the classid from the @ClassId annotation.
String	determineTablename(Class<?> clazz) Determines the tablename from the @TableName annotation.
int	getClassId(String pdoClassName) Gets the classid of a pdo class.
String	getClassName(int classId) Gets the classname for a classid.
String	getClassName(String tableName) Gets the classname for tablename.
Collection<String>	getClassNames() Gets a list of all class names. Sorted by name.
static SessionUtilities	getInstance() The singleton.
String	getTableName(String className) Gets the tablename of a pdo class.
boolean	isSomeRemoved(long lastSerial, List<IdSerialTuple> expireSet, long maxSerial) Inspects an expiration set and determines whether at least one object has been removed.
void	keepAliveIntervalChanged(Session session) Handles the change of a keep alive interval of a session.
void	startKeepAliveDaemonIfNotRunning() Starts the keep alive thread if not already running.
void	terminateHelperThreads() Stops all helper threads.

Methods inherited from class java.lang.Object

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

Field Detail

minSessionKeepAliveMillis

public static long minSessionKeepAliveMillis

minimum keep alive interval in milliseconds.

Constructor Detail

SessionUtilities

public SessionUtilities()

Creates a utility instance.

Method Detail

getInstance

public static SessionUtilities getInstance()

The singleton.

Returns:

the singleton

getTableName

public String getTableName(String className)

Gets the tablename of a pdo class.

Parameters:

className - the classname of the object

Returns:

the tablename, null if no such class

getClassName

public String getClassName(String tableName)

Gets the classname for tablename.

Parameters:

tableName - the tablename

Returns:

the name of the class, null if no such tablename

getClassId

public int getClassId(String pdoClassName)

Gets the classid of a pdo class.

Parameters:

pdoClassName - the classname of the pdo

Returns:

the classid, 0 if no such class

getClassName

public String getClassName(int classId)

Gets the classname for a classid.

Parameters:

classId - the classid

Returns:

the name of the class, null if no such classid

getClassNames

public Collection<String> getClassNames()

Gets a list of all class names.
Sorted by name.

Returns:

the class names

determineTablename

public String determineTablename(Class<?> clazz)

Determines the tablename from the @TableName annotation.

Parameters:

clazz - the class

Returns:

the tablename, null if no such annotation

determineClassId

public int determineClassId(Class<?> clazz)

Determines the classid from the @ClassId annotation.

Parameters:

clazz - the class

Returns:

the tablename, null if no such annotation

startKeepAliveDaemonIfNotRunning

public void startKeepAliveDaemonIfNotRunning()

Starts the keep alive thread if not already running.

terminateHelperThreads

public void terminateHelperThreads()

Stops all helper threads.

keepAliveIntervalChanged

public void keepAliveIntervalChanged(Session session)

Handles the change of a keep alive interval of a session.

Parameters:

session - the session

isSomeRemoved

public boolean isSomeRemoved(long lastSerial,
                             List<IdSerialTuple> expireSet,
                             long maxSerial)

Inspects an expiration set and determines whether at least one object has been removed.

Parameters:

lastSerial - the last known tableserial, ≤0 if unknown

expireSet - the expiration set

maxSerial - the current tableserial

Returns:

true if some object removed