org.snmp4j.agent

Class MOScopeComparator

java.lang.Object

org.snmp4j.agent.MOScopeComparator

All Implemented Interfaces:

Comparator<MOScope>

public class MOScopeComparator
extends Object
implements Comparator<MOScope>

The MOScopeComparator compares two scopes with each other.

Two scopes are compared by their context (if both are MOContextScope instances) first and then by their lower bound.

A scope is compared with a query by comparing the scope with the queries scope and then if both are deemed to be equal, the upper bound of the scope is checked. If it is unbounded (upper bound is null

Version:

1.0

Author:

Frank Fock

Constructor Summary

Constructors

Constructor and Description
MOScopeComparator()

Method Summary

Methods

Modifier and Type	Method and Description
int	compare(MOScope o1, MOScope o2) Compares a scope with another scope or query.
boolean	equals(Object obj)
int	hashCode()
static boolean	isQueryContextMatching(MOQuery a, MOScope b) Indicates whether the given query's context matches the context of the given scope.

Methods inherited from class java.lang.Object

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

Constructor Detail

MOScopeComparator

public MOScopeComparator()

Method Detail

compare

public int compare(MOScope o1,
          MOScope o2)

Compares a scope with another scope or query. See also the class description how comparison is done.

Specified by:

compare in interface Comparator<MOScope>

Parameters:

o1 - a MOscope instance.

o2 - a MOscope instance.

Returns:

an integer less than zero if o1 is less than o2 and zero if both values are deemed to be equal and a value greater than zero if o1 is greater than o2.

isQueryContextMatching

public static boolean isQueryContextMatching(MOQuery a,
                             MOScope b)

Indicates whether the given query's context matches the context of the given scope.

Parameters:

a - a MOQuery instance.

b - another MOScope instance.

Returns:

true if the query's context is null or if both contexts match or if the context of scope is the empty string.

Since:

2.0.2

equals

public boolean equals(Object obj)

Specified by:

equals in interface Comparator<MOScope>

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object