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Both sides previous revision Previous revision 2012/01/31 09:38 straka Change Perl commandline syntax.2012/01/27 17:48 straka 2012/01/27 17:45 straka 2012/01/26 22:40 straka 2012/01/26 17:08 straka 2012/01/25 22:05 straka 2012/01/25 14:33 straka 2012/01/25 14:32 straka 2012/01/23 21:34 straka 2012/01/23 21:33 straka 2012/01/23 21:33 straka 2012/01/23 21:33 straka 2012/01/23 21:29 straka 2012/01/23 21:28 straka 2012/01/23 21:20 straka 2012/01/23 21:18 straka 2012/01/23 21:16 straka 2012/01/23 21:07 straka vytvořeno Go		2012/01/31 09:38 straka Change Perl commandline syntax.2012/01/27 17:48 straka 2012/01/27 17:45 straka 2012/01/26 22:40 straka 2012/01/26 17:08 straka 2012/01/25 22:05 straka 2012/01/25 14:33 straka 2012/01/25 14:32 straka 2012/01/23 21:34 straka 2012/01/23 21:33 straka 2012/01/23 21:33 straka 2012/01/23 21:33 straka 2012/01/23 21:29 straka 2012/01/23 21:28 straka 2012/01/23 21:20 straka 2012/01/23 21:18 straka 2012/01/23 21:16 straka 2012/01/23 21:07 straka vytvořeno Go Next revision Both sides next revision
courses:mapreduce-tutorial:perl-api [2012/01/23 21:33] straka		courses:mapreduce-tutorial:perl-api [2012/01/23 21:33] straka
Line 39:		Line 39:
	requires 'map';		requires 'map';
-	sub setup() { 1; }	+	sub setup() { }
-	sub cleanup { 1;}	+	sub cleanup { }
	</code>		</code>
	* ''sub map($self, $key, $value, $context)'' -- executed for every (key, value) input pair. The variable '$content' has following methods:		* ''sub map($self, $key, $value, $context)'' -- executed for every (key, value) input pair. The variable '$content' has following methods:
Line 56:		Line 56:
	requires 'reduce';		requires 'reduce';
-	sub setup() { 1; }	+	sub setup() { }
-	sub cleanup { 1;}	+	sub cleanup { }
	</code>		</code>
	* ''sub reduce($self, $key, $values, $context)'' -- executed for every ''$key''. The ''$values'' is an iterator with the following methods:		* ''sub reduce($self, $key, $values, $context)'' -- executed for every ''$key''. The ''$values'' is an iterator with the following methods:
Line 77:		Line 77:
	requires 'getPartition';		requires 'getPartition';
-	sub setup { 1; }	+	sub setup { }
-	sub cleanup { 1; }	+	sub cleanup { }
	</code>		</code>
Line 84:		Line 84:
	* ''sub setup($self)'' -- executed once before any input (key, value) pairs are processed.		* ''sub setup($self)'' -- executed once before any input (key, value) pairs are processed.
	* ''sub cleanup($self)'' -- executed once after all input (key, value) pairs are processed.		* ''sub cleanup($self)'' -- executed once after all input (key, value) pairs are processed.
		+

---

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