Bill Barker wrote:
I've been working on a SparseRealVector that implements RealVector but is
backed by OpenIntToDoubleHashMap. Unlike SparseRealMatrix, the goal is more
speed than space. Mostly it is going well, but running into a few problems
where some RealVector methods are almost nonsensical for sparse vectors
(e.g. mapInvToSelf).
Since the default value of OpenIntToDoubleHashMap is final, this means that
I currently have to replace the map in this case (so it really isn't 'self'
afterwards). So what i'm asking is if it is better to have the default
value mutable or to allow the backing to be replaced in a "*ToSelf" method.
I don't understand the question. Is it that different *ToSelf methods
require different missingEntries values? I don't follow how that could
be the case. In any case, the question has me thinking that at least
OpenIntToDoubleHashMap should expose a getter for missingEntries. I
agree with Luc though that this field should not be mutable.
Phil
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