GitHub user kaching88 opened a pull request:
https://github.com/apache/commons-collections/pull/11
Added global counter for AbstractMultiValuedMap and his subclasses.
This commit add new field called globalCounter which represents runtime
global counter for class es which extending AbstractMultiValuedMap. It improves
current method size() time complexity from O(n) to O(1), But there are some
problems with tests. Current version passes 355 on 358 tests. Two of failed
tests are based on concept that value collection which we get from getMap()
method is binded with size() method. In other words if you put value to that
collection a global counter should be increased. For being honest this is
completely unintelligibly. Why separate collection with own counter should
increase size of mother map? Third failed test is a problem with serialization.
Map with counter don't deserialize properly - changes type of inner class from
GlobalCounterBindedMap to HashMap. I have no hope that this commit will be
merged due to failed tests but honestly i have no idea how can i solve this
problems. Maybe someone from community find a way to fix it.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kaching88/commons-collections trunk
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/commons-collections/pull/11.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #11
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commit a323371af732f4e0c13b6bfd5dbce4c32af48afa
Author: kaching88 <wa...@o2.pl>
Date: 2015-07-01T19:43:44Z
Added global counter for AbstractMultiValuedMap and his subclasses.
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