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Java > Open Source Codes > org > snmp4j > agent > mo > jmx > types > TransformType


1 /*_############################################################################
2   _##
3   _## SNMP4J-AgentJMX - TransformType.java
4   _##
5   _## Copyright (C) 2006-2007 Frank Fock (SNMP4J.org)
6   _##
7   _## This program is free software; you can redistribute it and/or modify
8   _## it under the terms of the GNU General Public License version 2 as
9   _## published by the Free Software Foundation.
10   _##
11   _## This program is distributed in the hope that it will be useful,
12   _## but WITHOUT ANY WARRANTY; without even the implied warranty of
13   _## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14   _## GNU General Public License for more details.
15   _##
16   _## You should have received a copy of the GNU General Public License
17   _## along with this program; if not, write to the Free Software
18   _## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
19   _## MA 02110-1301 USA
20   _##
21   _##########################################################################*/
22 package org.snmp4j.agent.mo.jmx.types;
23
24 import javax.management.*;
25
26 public interface TransformType {
27
28   Object JavaDoc transformFromNative(Object JavaDoc nativeValue, ObjectName objectName);
29
30   Object JavaDoc transformToNative(Object JavaDoc transformedValue, Object JavaDoc oldNativeValue,
31                            ObjectName objectName);
32
33   /**
34    * Indicates whether a caller of a "toNative" transformation needs to provide
35    * the old native value in order to get a successful transformation. Otherwise
36    * the caller may provide a <code>null</code> to save CPU cycles.
37    *
38    * @return
39    * <code>true</code> if the caller must always provide a none
40    * <code>null</code> value for the <code>nativeValue</code> parameter of
41    * the transformation methods.
42    */
43   boolean isNativeValueAlwaysNeeded();
44 }
45
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