Add template arguments to the Vertex abstract class
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Key: HAMA-549
URL: https://issues.apache.org/jira/browse/HAMA-549
Project: Hama
Issue Type: Improvement
Components: graph
Reporter: Edward J. Yoon
As described in Pregel paper,
{quote}
3. THE C++ API
This section discusses the most important aspects of Pre-
gel's C++ API, omitting relatively mechanical issues.
Writing a Pregel program involves subclassing the prede-
ned Vertex class (see Figure 3). Its template arguments
dene three value types, associated with vertices, edges,
and messages. Each vertex has an associated value of the
specied type. This uniformity may seem restrictive, but
users can manage it by using
exible types like protocol
buers [42].
{quote}
We need to add two template arguments for value types of vertex and edge to the
Vertex abstract class.
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