org.snmp4j.agent.mo.util
Class MOTableSizeLimit

java.lang.Object
  org.snmp4j.agent.mo.util.MOTableSizeLimit

All Implemented Interfaces:

java.util.EventListener, MOTableRowListener

Direct Known Subclasses:

LogMOTableSizeLimit

public class MOTableSizeLimit
extends java.lang.Object
implements MOTableRowListener

This class implements a size limit on the number of rows in a table. If the limit is reached or exceeded, no more additional rows can be added by SNMP means.

Since:

1.1.5

Version:

1.1.5

Author:

Frank Fock

Field Summary

static java.lang.String

PROPERTY_PREFIX The property prefix each size limit definition has to start with.

Constructor Summary

MOTableSizeLimit(int maxNumRows)

MOTableSizeLimit(java.util.Properties limits)

Method Summary

java.util.SortedMap	getLimits()
int	getMaxNumRows()
protected boolean	removeEldest(MOTableRowEvent triggeringEvent, int numRows) Remove try to remove a given number of eldest rows of the table referred to in the triggering event object.
void	rowChanged(MOTableRowEvent event) A column or a complete row is changed/has been changed.
void	setLimits(java.util.Properties limits)
void	setMaxNumRows(int maxNumRows)

Methods inherited from class java.lang.Object

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

Field Detail

PROPERTY_PREFIX

public static final java.lang.String PROPERTY_PREFIX

The property prefix each size limit definition has to start with. The OID subtree for which the definition is effective is then appended as follows:

 snmp4j.MOTableSizeLimit.=
 

where limit is a positive number or zero.

See Also:

Constant Field Values

Constructor Detail

MOTableSizeLimit

public MOTableSizeLimit(int maxNumRows)

MOTableSizeLimit

public MOTableSizeLimit(java.util.Properties limits)

Method Detail

rowChanged

public void rowChanged(MOTableRowEvent event)

A column or a complete row is changed/has been changed.

Specified by:

rowChanged in interface MOTableRowListener

Parameters:

event - a MOTableRowEvent describing the event. To veto the event the MOTableRowEvent.setVetoStatus(int) and optionally also the MOTableRowEvent.setVetoColumn(int) can be called.

removeEldest

protected boolean removeEldest(MOTableRowEvent triggeringEvent,
                               int numRows)

Remove try to remove a given number of eldest rows of the table referred to in the triggering event object.

Parameters:

triggeringEvent - the MOTableRowEvent object that describes the table with exceeding row limit.

numRows - the number of rows to remove (if possible).

Returns:

true if one or more rows could be removed and false if the causing event should be denied/rejected. The default implementation returns false always.

setMaxNumRows

public void setMaxNumRows(int maxNumRows)

getMaxNumRows

public int getMaxNumRows()

getLimits

public java.util.SortedMap getLimits()

setLimits

public void setLimits(java.util.Properties limits)