Hi to all,
because of actual production environment constraints, I need to make Giraph 1.1
compatible with Java 1.6.
My production environment is Java 1.6.0_26-b03 / Cloudera cdh4.4.0 ... I know,
I know ... :( :( :(
However, I am stuck on this syntax, and I don't know how to make it compatible
with Java 1.6 .
* diamond operator is not supported in 1.6 so
here "new WrappedMappingInputFormat<>("
public WrappedMappingInputFormat<I, V, E, ? extends Writable>
createWrappedMappingInputFormat() {
// how to determine ? extends Writable
// via conf ? mappingTargetClass ???
//Type T = mappingTargetClass.getGenericSuperclass();
//Class<T> l_writable = (Class<T>) ((ParameterizedType)
getMappingInputFormatClass().getGenericSuperclass()).getActualTypeArguments()[3];
WrappedMappingInputFormat<I, V, E, ? extends Writable>
wrappedMappingInputFormat =
new WrappedMappingInputFormat<>(createMappingInputFormat());
configureIfPossible(wrappedMappingInputFormat);
return wrappedMappingInputFormat;
}
What would be the trick / construct to make it 1.6 compatible ?
( watch out the "? extends Writable" ... )
Thanks a lot
best regards and happy new year
Olivier
------------------------------------
Olivier Varène
Big Data Referent
Orange - DSI France/Digital Factory
[email protected]
+33 4 97 46 29 94
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