org.tentackle.persist

Class TableSerialExpirationBacklog

java.lang.Object

org.tentackle.persist.TableSerialExpirationBacklog

public class TableSerialExpirationBacklog
extends Object

Keeps a backlog of expiration sets.
Used in RMI-servers to reduce database roundtrips for clients requesting the expiration info for their local caches.

Author:

harald

Field Summary

Fields

Modifier and Type	Field and Description
static int	defaultSize Default size of expiration table.

Constructor Summary

Constructors

Constructor and Description
TableSerialExpirationBacklog() Creates a backlog with a default size.
TableSerialExpirationBacklog(int size) Creates a backlog.

Method Summary

Modifier and Type	Method and Description
void	addExpiration(long minSerial, long maxSerial, List<IdSerialTuple> idSerTuples) Adds an expiration set to the backlog.
List<IdSerialTuple>	getExpiration(long minSerial, long maxSerial) Gets the expiration backlog for a given range of tableserials.

Methods inherited from class java.lang.Object

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

Field Detail

defaultSize

public static int defaultSize

Default size of expiration table.

Constructor Detail

TableSerialExpirationBacklog

public TableSerialExpirationBacklog(int size)

Creates a backlog.

Parameters:

size - the size of the backlog

TableSerialExpirationBacklog

public TableSerialExpirationBacklog()

Creates a backlog with a default size.

Method Detail

addExpiration

public void addExpiration(long minSerial,
                          long maxSerial,
                          List<IdSerialTuple> idSerTuples)

Adds an expiration set to the backlog.

Parameters:

minSerial - the lower serial bound of the query (minSerial < tableSerial)

maxSerial - the upper serial bound of the query (tableSerial ≤ maxSerial)

idSerTuples - the expiration info as pairs of id/tableserial.

getExpiration

public List<IdSerialTuple> getExpiration(long minSerial,
                                         long maxSerial)

Gets the expiration backlog for a given range of tableserials.

Parameters:

minSerial - the lower serial bound of the query (minSerial < tableSerial)

maxSerial - the upper serial bound of the query (tableSerial ≤ maxSerial)

Returns:

the expiration info as pairs of id/tableserial, null if given range was not found in the backlog