01: /*_############################################################################
02: _##
03: _## SNMP4J-Agent - ValueConstraint.java
04: _##
05: _## Copyright (C) 2005-2007 Frank Fock (SNMP4J.org)
06: _##
07: _## Licensed under the Apache License, Version 2.0 (the "License");
08: _## you may not use this file except in compliance with the License.
09: _## You may obtain a copy of the License at
10: _##
11: _## http://www.apache.org/licenses/LICENSE-2.0
12: _##
13: _## Unless required by applicable law or agreed to in writing, software
14: _## distributed under the License is distributed on an "AS IS" BASIS,
15: _## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16: _## See the License for the specific language governing permissions and
17: _## limitations under the License.
18: _##
19: _##########################################################################*/
20:
21: package org.snmp4j.agent.mo.snmp.smi;
22:
23: import org.snmp4j.smi.Variable;
24:
25: /**
26: * A <code>ValueConstraint</code> instance validates the value ranges of a
27: * SNMP value to match a certain constraint.
28: *
29: * @author Frank Fock
30: * @version 1.0
31: */
32: public interface ValueConstraint {
33:
34: /**
35: * Indicates whether a SNMP value matches this value constraint.
36: * @param variable
37: * a SNMP value that has to match the type of SNMP value this
38: * <code>ValueConstraint</code> supports. Otherwise a wrongType error
39: * should be returned instead of throwing a
40: * <code>ClassCastException</code>.
41: * @return
42: * a SNMP error status (e.g. wrongValue) if the value does not match
43: * the constraint, or zero if it matches.
44: */
45: int validate(Variable variable);
46:
47: }
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