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The "Aggregators" page has been changed by AnastasisAndronidis: https://wiki.apache.org/hama/Aggregators?action=diff&rev1=5&rev2=6 There are lots of different aggregators and you can also make your own. Look for already implemented aggregators in org.apache.hama.graph package. === Start working with aggregators === + To start aggregating values from your vertices, is very easy and strait forward. From your vertex, use: + {{{ + this.aggregate(index,value); + }}} + === Get results === Inside your vertex, you can get the results of each aggregator by using this method: @@ -36, +41 @@ The parameter of this method is a number that is equivalent to the order of the registered aggregator. (The first registered aggregator is number 0, second is number 1 etc.) === Write your own aggregators === - To write your own aggregator, you have o extend AbstractAggregator class and implement the methods of #aggregate(value) and #getValue(). For more, please see the default implemented aggregators in org.apache.hama.graph package. + To write your own aggregator, you have o extend AbstractAggregator class and implement the methods of #aggregate(M value) and #getValue(). For more, please see the default implemented aggregators in org.apache.hama.graph package.
