org.tentackle.persist

Class ModificationTally

java.lang.Object

org.tentackle.persist.ModificationTally

public class ModificationTally
extends Object

Counter to track modifications for a class/table.
The ModificationTracker maintains a list of ModificationTally-objects, one for each tracked name.

Author:

harald

Constructor Summary

Constructors

Constructor and Description
ModificationTally(Db db, String trackedName) Creates a modification counter for a given tracked name.

Method Summary

Modifier and Type	Method and Description
void	addToModificationTable() Adds this counter to the modification table.
long	countPending() Adds a pending count.
long	getId() Gets the ID of the counter.
long	getLatestSerial() Gets the latest serial updated by this counter.
long	getModificationCount() Get the current modification count by tablename.
long	getPendingCount() Gets the pending count.
void	performPendingCount() Performs the physical pending count if pending count > 0.
void	setLastSerial(long lastSerial) Sets the last serial.

Methods inherited from class java.lang.Object

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

Constructor Detail

ModificationTally

public ModificationTally(Db db,
                         String trackedName)

Creates a modification counter for a given tracked name.

Parameters:

db - the db connection

trackedName - the tracked name

Method Detail

getId

public long getId()

Gets the ID of the counter.

Returns:

the unique id

countPending

public long countPending()

Adds a pending count.

Returns:

the new pending count

getPendingCount

public long getPendingCount()

Gets the pending count.

Returns:

the pending count, 0 if none

setLastSerial

public void setLastSerial(long lastSerial)

Sets the last serial.

Parameters:

lastSerial - the serial

getLatestSerial

public long getLatestSerial()

Gets the latest serial updated by this counter.

Returns:

the latest serial from last update plus pending count

performPendingCount

public void performPendingCount()

Performs the physical pending count if pending count > 0.

addToModificationTable

public void addToModificationTable()

Adds this counter to the modification table.

getModificationCount

public long getModificationCount()

Get the current modification count by tablename.

Returns:

the modification count