devices
Class Change

java.lang.Object
  devices.Change

public class Change

extends java.lang.Object

Changes represent database changes the polling process needs to know. Each Change record indicates the monitoring or unmonitoring of a Device, DeviceInterface, or Attribute, the indication that a Device, Interface, or Attribute's DB record changed, or a record may indicate time to shutdown the system.

Version:

0.1

Author:

gswalters

Field Summary

static java.lang.String	MONITOR
static java.lang.String	SHUTDOWN
static java.lang.String	UNMONITOR
static java.lang.String	UPDATE

Constructor Summary

Change(long changeID, java.lang.String changeType, long deviceID, int ifIndex, int oid)
Construct full object.

Method Summary

boolean	dbDeleteChange(java.sql.Connection dbConn) Delete this Change record from the database.
boolean	dbInsertChange(java.sql.Connection dbConn) Insert a new Change into the database.
long	getChangeID() Getters
java.lang.String	getChangeType()
long	getDeviceID()
int	getIfIndex()
int	getOid()
java.lang.String	toString() Convert the Change object into a printable String.

Methods inherited from class java.lang.Object

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

Field Detail

MONITOR

public static final java.lang.String MONITOR

See Also:

Constant Field Values

UNMONITOR

public static final java.lang.String UNMONITOR

See Also:

Constant Field Values

UPDATE

public static final java.lang.String UPDATE

See Also:

Constant Field Values

SHUTDOWN

public static final java.lang.String SHUTDOWN

See Also:

Constant Field Values

Constructor Detail

Change

public Change(long changeID,
              java.lang.String changeType,
              long deviceID,
              int ifIndex,
              int oid)

Construct full object. A change may pertain to an Attribute, thus all three data members contain valid values. If the change pertains to an Interface, only the deviceID and ifIndex contain valid values. If the change pertains to a Device, only the deviceID holds a valid value. If the change is shutdown, only the changeType contains a valid value.

Valid combinations:
shutdown, 0, 0, 0
monitor, x, 0, 0 (device)
unmonitor, x, 0, 0 (device)
monitor, x, x, 0 (interface)
unmonitor, x, x, 0 (interface)
monitor, x, x, x (attribute)
unmonitor, x, x, x (attribute)
update, x, 0, 0 (device)
update, x, x, 0 (interface)
update, x, x, x (attribute)

Parameters:

changeID - int value of the Change table record ID

changeType - String containing the type of change

deviceID - int value of the changed Device record in the database

ifIndex - int value of the changed DeviceInterface's index

oid - int value of the changed Attribute's OID

Method Detail

dbInsertChange

public boolean dbInsertChange(java.sql.Connection dbConn)

Insert a new Change into the database.

Returns:

Boolean indicating if the Change was added

dbDeleteChange

public boolean dbDeleteChange(java.sql.Connection dbConn)

Delete this Change record from the database.

Parameters:

dbConn - Connection to the databse

Returns:

Boolean value indicating operation success

toString

public java.lang.String toString()

Convert the Change object into a printable String.

Returns:

String containing the Change information nicely formatted

getChangeID

public long getChangeID()

Getters

getChangeType

public java.lang.String getChangeType()

getDeviceID

public long getDeviceID()

getIfIndex

public int getIfIndex()

getOid

public int getOid()