Class BufferedMOTableModel.RowBufferIterator

java.lang.Object

org.snmp4j.agent.mox.BufferedMOTableModel.RowBufferIterator

All Implemented Interfaces:

Iterator<R>

Enclosing class:

BufferedMOTableModel<R extends org.snmp4j.agent.mo.MOTableRow>

protected class BufferedMOTableModel.RowBufferIterator
extends Object
implements Iterator<R>

The RowBufferIterator implements the iterator needed by the MOTableModel to traverse the model's rows.

Since:

2.2

Version:

3.0

Author:

Frank Fock

Constructor Summary

Constructors

Constructor	Description
RowBufferIterator(org.snmp4j.smi.OID lowerBound)	Creates the iterator with the specified start row.

Method Summary

Modifier and Type	Method	Description
protected BufferedMOTableModel<R>.BufferedMOTableRow<R>	fetchNextBufferRow(org.snmp4j.smi.OID lowerBound, BufferedMOTableModel<R>.BufferedMOTableRow<R> predecessor, boolean includeLowerBound)	Fetches the next buffered row following the given lower bound.
boolean	hasNext()
R	next()
void	remove()

Methods inherited from class Object

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

Methods inherited from interface Iterator

forEachRemaining

Constructor Details

RowBufferIterator

public RowBufferIterator(org.snmp4j.smi.OID lowerBound)

Creates the iterator with the specified start row.

Parameters:

lowerBound - the lower bound index (inclusive) of the first row to return. If null is specified, the first row will be returned by first call of next().

Method Details

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<R extends org.snmp4j.agent.mo.MOTableRow>

next

public R next()

Specified by:

next in interface Iterator<R extends org.snmp4j.agent.mo.MOTableRow>

remove

public void remove()

Specified by:

remove in interface Iterator<R extends org.snmp4j.agent.mo.MOTableRow>

fetchNextBufferRow

protected BufferedMOTableModel<R>.BufferedMOTableRow<R> fetchNextBufferRow(org.snmp4j.smi.OID lowerBound,
 BufferedMOTableModel<R>.BufferedMOTableRow<R> predecessor,
 boolean includeLowerBound)

Fetches the next buffered row following the given lower bound. If a valid successor is already present in the buffer it is returned as a buffer hit, otherwise the backend table is queried and the buffer is updated accordingly.

Parameters:

lowerBound - the OID after (or at, depending on includeLowerBound) which the next row is searched.

predecessor - the buffered row that immediately precedes the searched row, or null if unknown.

includeLowerBound - if true, a row whose index equals lowerBound is eligible to be returned, otherwise only rows with an index greater than lowerBound are considered.

Returns:

the next buffered row, or null if no such row exists.