01: /*_############################################################################
02: _##
03: _## SNMP4J - VariantVariableCallback.java
04: _##
05: _## Copyright (C) 2003-2008 Frank Fock and Jochen Katz (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.smi;
22:
23: /**
24: * The <code>VariantVariableCallback</code> can be implemented by
25: * objects that want to intercept/monitor reading and writing of
26: * a <code>VariantVariable</code>'s value.
27: *
28: * @author Frank Fock
29: * @version 1.7
30: */
31: public interface VariantVariableCallback {
32:
33: /**
34: * The supplied variable's value has been updated.
35: * @param variable
36: * the <code>VariantVariable</code> that has been updated.
37: */
38: void variableUpdated(VariantVariable variable);
39:
40: /**
41: * The supplied variable needs to be updated because it is about
42: * to be read.
43: * @param variable
44: * the <code>VariantVariable</code> that will be read.
45: */
46: void updateVariable(VariantVariable variable);
47:
48: }
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