Implemented the String representation of Feature in a tabular format.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1595219 13f79535-47bb-0310-9956-ffa450edef68
Attempt to make DefaultFeature more robust.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1595377 13f79535-47bb-0310-9956-ffa450edef68
Minor javadoc.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1595794 13f79535-47bb-0310-9956-ffa450edef68
Refactored DefaultFeature in two different implementation: DenseFeature and SparseFeature.
The intend is to have an efficient storage method in the common case where all attributes
are expected to be present (also known as "simple feature").


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1595944 13f79535-47bb-0310-9956-ffa450edef68
Missing test file in previous commit.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1595945 13f79535-47bb-0310-9956-ffa450edef68
Document better the Feature.quality() contract and fix a hole in their implementation.
The new implementation can now invoke the user-overridden methods, if any.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1596278 13f79535-47bb-0310-9956-ffa450edef68
More tests.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1596317 13f79535-47bb-0310-9956-ffa450edef68
Added tests.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1596580 13f79535-47bb-0310-9956-ffa450edef68
Additional test and bug fix in the evaluation of Feature quality.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1596588 13f79535-47bb-0310-9956-ffa450edef68
Test the plugin of custom Feature quality evaluation procedures.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1596632 13f79535-47bb-0310-9956-ffa450edef68
Trivial javadoc fix.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1596634 13f79535-47bb-0310-9956-ffa450edef68
Added tests.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1596663 13f79535-47bb-0310-9956-ffa450edef68
Merge from the JDK8 branch. Contains the split of DefaultFeature in two classes: DenseFeature and SparseFeature.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK7@1596665 13f79535-47bb-0310-9956-ffa450edef68