source: proiecte/HadoopJUnit/hadoop-0.20.1/docs/api/org/apache/hadoop/ipc/VersionedProtocol.html @ 120

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7VersionedProtocol (Hadoop 0.20.1 API)
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91org.apache.hadoop.ipc</FONT>
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93Interface VersionedProtocol</H2>
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95<DT><B>All Known Subinterfaces:</B> <DD><A HREF="../../../../org/apache/hadoop/security/authorize/RefreshAuthorizationPolicyProtocol.html" title="interface in org.apache.hadoop.security.authorize">RefreshAuthorizationPolicyProtocol</A></DD>
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102<DT><PRE>public interface <B>VersionedProtocol</B></DL>
103</PRE>
104
105<P>
106Superclass of all protocols that use Hadoop RPC.
107 Subclasses of this interface are also supposed to have
108 a static final long versionID field.
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126<CODE>&nbsp;long</CODE></FONT></TD>
127<TD><CODE><B><A HREF="../../../../org/apache/hadoop/ipc/VersionedProtocol.html#getProtocolVersion(java.lang.String, long)">getProtocolVersion</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;protocol,
128                   long&nbsp;clientVersion)</CODE>
129
130<BR>
131&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return protocol version corresponding to protocol interface.</TD>
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148getProtocolVersion</H3>
149<PRE>
150long <B>getProtocolVersion</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;protocol,
151                        long&nbsp;clientVersion)
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153<DL>
154<DD>Return protocol version corresponding to protocol interface.
155<P>
156<DD><DL>
157<DT><B>Parameters:</B><DD><CODE>protocol</CODE> - The classname of the protocol interface<DD><CODE>clientVersion</CODE> - The version of the protocol that the client speaks
158<DT><B>Returns:</B><DD>the version that the server will speak
159<DT><B>Throws:</B>
160<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL>
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