jtibshirani commented on a change in pull request #219:
URL: https://github.com/apache/lucene/pull/219#discussion_r673356722
##########
File path:
lucene/core/src/java/org/apache/lucene/index/VectorSimilarityFunction.java
##########
@@ -62,15 +64,5 @@
* @param v2 another vector, of the same dimension
* @return the value of the similarity function applied to the two vectors
*/
- public float compare(float[] v1, float[] v2) {
- switch (this) {
- case EUCLIDEAN:
- return squareDistance(v1, v2);
- case DOT_PRODUCT:
- return dotProduct(v1, v2);
- case NONE:
- default:
- throw new IllegalStateException("Incomparable similarity function: " +
this);
- }
- }
+ public abstract float compare(float[] v1, float[] v2);
Review comment:
nice refactor :)
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