org.snmp4j.agent.mo.snmp.smi
Class ConstraintsImpl

java.lang.Object
  org.snmp4j.agent.mo.snmp.smi.ConstraintsImpl

All Implemented Interfaces:

Constraints, ValueConstraint

public class ConstraintsImpl
extends java.lang.Object
implements Constraints

The ConstraintsImpl class represents a collection of constraints that are applied to a SNMP value in the order they have been added to this constraints collection.

Version:

1.0

Author:

Frank Fock

Constructor Summary

ConstraintsImpl()
Creates a new constraints collection.

Method Summary

void	add(Constraint sizeConstraint) Adds a range constraint to the constraints collection.
Constraint[]	getConstraints() Gets an array with the constraints in this collection ordered by insertion time.
boolean	isValidSize(long size) Interpretes the value range constraints contained in this collection as size restrictions for OCTET STRING values and checks whether the given size matches these criteria.
void	remove(Constraint sizeContraint) Removes a constraint.
int	validate(org.snmp4j.smi.Variable variable) Indicates whether a SNMP value matches this value constraint.

Methods inherited from class java.lang.Object

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

Constructor Detail

ConstraintsImpl

public ConstraintsImpl()

Creates a new constraints collection.

Method Detail

add

public void add(Constraint sizeConstraint)

Description copied from interface: Constraints

Adds a range constraint to the constraints collection.

Specified by:

add in interface Constraints

Parameters:

sizeConstraint - a SNMP integer/long value range constraint.

remove

public void remove(Constraint sizeContraint)

Description copied from interface: Constraints

Removes a constraint.

Specified by:

remove in interface Constraints

Parameters:

sizeContraint - a SNMP integer/long value range constraint.

getConstraints

public Constraint[] getConstraints()

Description copied from interface: Constraints

Gets an array with the constraints in this collection ordered by insertion time.

Specified by:

getConstraints in interface Constraints

Returns:

an array of Constraint instances.

isValidSize

public boolean isValidSize(long size)

Description copied from interface: Constraints

Interpretes the value range constraints contained in this collection as size restrictions for OCTET STRING values and checks whether the given size matches these criteria.

Specified by:

isValidSize in interface Constraints

Parameters:

size - a long value representing an OCTET STRING size.

Returns:

true if the size is valid.

validate

public int validate(org.snmp4j.smi.Variable variable)

Description copied from interface: ValueConstraint

Indicates whether a SNMP value matches this value constraint.

Specified by:

validate in interface ValueConstraint

Parameters:

variable - a SNMP value that has to match the type of SNMP value this ValueConstraint supports. Otherwise a wrongType error should be returned instead of throwing a ClassCastException.

Returns:

a SNMP error status (e.g. wrongValue) if the value does not match the constraint, or zero if it matches.