Updates Javadocs

partiql-eval/src/main/java/org/partiql/eval/WindowFunction.java

@@ -3,18 +3,25 @@
 import org.jetbrains.annotations.NotNull;
 import org.partiql.spi.value.Datum;
 
+/**
+ * Represents an executable window function.
+ * @see org.partiql.plan.WindowFunctionNode
+ */
 public interface WindowFunction {
 
     /**
-     * TODO
-     * @param partition TODO
+     * Resets the state of the window function. Implementers may hold a reference to {@code partition}.
+     * @param partition the partition to reset the window function for
      */
     void reset(@NotNull WindowPartition partition);
 
     /**
-     * TODO
-     * @return TODO
+     * Computes the result of the window function for the given environment and ordering group
+     * @param env the environment to use for evaluation
+     * @param orderingGroupStart the starting row index of the ordering group
+     * @param orderingGroupEnd the ending row index of the ordering group
+     * @return the result of the window function evaluation
      */
     @NotNull
     Datum eval(@NotNull Environment env, long orderingGroupStart, long orderingGroupEnd);
-}
+}

partiql-eval/src/main/java/org/partiql/eval/WindowPartition.java

@@ -11,7 +11,7 @@ public interface WindowPartition {
      * Returns the number of rows in this partition.
      * @return the number of rows in this partition.
      */
-    public long size();
+    long size();
 
     /**
      * Retrieves the row at the given index.
@@ -20,5 +20,5 @@ public interface WindowPartition {
      * @return the row at the given index
      */
     @NotNull
-    public Row get(long index) throws RuntimeException;
+    Row get(long index) throws RuntimeException;
 }