> On Aug. 25, 2013, 8:30 p.m., Nitay Joffe wrote: > > giraph-core/src/main/java/org/apache/giraph/io/formats/GiraphTextOutputFormat.java, > > line 54 > > <https://reviews.apache.org/r/13756/diff/2/?file=344106#file344106line54> > > > > Giraph style (and Java in general) is to define things where they're > > used / needed rather than all up top like in C. Please fix. > > Armando wrote: > I am just wondering: I usually declare a variable outside e.g. an > if-statement if I need it both in the if-clause and in the else-clause. Is it > ok or should I define it when used separately in both clauses?
In general, I think it's fine in both cases. The "definition" would want the variable to be declared inside the scope where it is used, hence inside both blocks (given that it is not used outside). I think these are details though. The point Nitay was making is that the declaration of a variable should be close to where the variable is used, so that people don't have to scroll pages of code to see the variable type. Once this condition is matched, you are more or less free. - Claudio ----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: https://reviews.apache.org/r/13756/#review25523 ----------------------------------------------------------- On Aug. 23, 2013, 1:34 a.m., Armando wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://reviews.apache.org/r/13756/ > ----------------------------------------------------------- > > (Updated Aug. 23, 2013, 1:34 a.m.) > > > Review request for giraph, Armando, Claudio Martella, and Nitay Joffe. > > > Bugs: GIRAPH-732 > https://issues.apache.org/jira/browse/GIRAPH-732 > > > Repository: giraph-git > > > Description > ------- > > This patch is a possible solution to provide an EdgeOutputFormat API in > Giraph. > The idea is to add the same logic as the one for the vertices for edges. For > this reason I add saveEdges after saveVertices. > This requires the user to have to different paths for the resulting files. > For this reason I have implemented TextEdgeOutputFormat > and modified TextVertexOutputFormat so that a subdirectory can be specified. > The code I provide should be compliant with previous versions of hadoop as > well as YARN (I was yet not able to test it on YARN). > It is also retro-compatible since when not specified, TextVertexOutputFormat > behaves as before. > I am also providing an actual usable implementation with the associated tests > (SrcIdDstIdEdgeValueOutputFormat). > Also very interesting is the fact that this implementation is totally > transparent to the classes implementing TextVertexOutputFormat. > > passed "maven verify" > > > Diffs > ----- > > giraph-core/src/main/java/org/apache/giraph/GiraphRunner.java 1bd79b5 > giraph-core/src/main/java/org/apache/giraph/conf/GiraphClasses.java 71fe885 > giraph-core/src/main/java/org/apache/giraph/conf/GiraphConfiguration.java > 23bcd32 > giraph-core/src/main/java/org/apache/giraph/conf/GiraphConstants.java > c276c2a > > giraph-core/src/main/java/org/apache/giraph/conf/ImmutableClassesGiraphConfiguration.java > 49a2ebc > giraph-core/src/main/java/org/apache/giraph/io/EdgeOutputFormat.java > PRE-CREATION > giraph-core/src/main/java/org/apache/giraph/io/EdgeWriter.java PRE-CREATION > > giraph-core/src/main/java/org/apache/giraph/io/formats/GiraphTextOutputFormat.java > PRE-CREATION > > giraph-core/src/main/java/org/apache/giraph/io/formats/SrcIdDstIdEdgeValueTextOutputFormat.java > PRE-CREATION > > giraph-core/src/main/java/org/apache/giraph/io/formats/TextEdgeOutputFormat.java > PRE-CREATION > > giraph-core/src/main/java/org/apache/giraph/io/formats/TextVertexOutputFormat.java > c91d543 > > giraph-core/src/main/java/org/apache/giraph/io/internal/WrappedEdgeOutputFormat.java > PRE-CREATION > giraph-core/src/main/java/org/apache/giraph/utils/ConfigurationUtils.java > 745764b > giraph-core/src/main/java/org/apache/giraph/worker/BspServiceWorker.java > da1e7fb > > giraph-core/src/test/java/org/apache/giraph/io/TestSrcIdDstIdEdgeValueTextOutputFormat.java > PRE-CREATION > > Diff: https://reviews.apache.org/r/13756/diff/ > > > Testing > ------- > > > Thanks, > > Armando > >
