From 35d59981840614bf4b877714ee88e273816c46d2 Mon Sep 17 00:00:00 2001
From: Jon Bratseth <bratseth@yahoo-inc.com>
Date: Tue, 19 Dec 2017 23:02:04 +0100
Subject: Use longs for dimensions lengths in all API's

This is to be able to support tensor dimensions with more than 2B elements in the future
without API change.
---
 .../yahoo/tensor/functions/ScalarFunctions.java    | 36 +++++++++++-----------
 1 file changed, 18 insertions(+), 18 deletions(-)

(limited to 'vespajlib/src/main/java/com/yahoo/tensor/functions/ScalarFunctions.java')

diff --git a/vespajlib/src/main/java/com/yahoo/tensor/functions/ScalarFunctions.java b/vespajlib/src/main/java/com/yahoo/tensor/functions/ScalarFunctions.java
index fb5029fbfd6..f1dadba2a29 100644
--- a/vespajlib/src/main/java/com/yahoo/tensor/functions/ScalarFunctions.java
+++ b/vespajlib/src/main/java/com/yahoo/tensor/functions/ScalarFunctions.java
@@ -14,8 +14,8 @@ import java.util.stream.Collectors;
 /**
  * Factory of scalar Java functions.
  * The purpose of this is to embellish anonymous functions with a runtime type
- * such that they can be inspected and will return a parseable toString.
- * 
+ * such that they can be inspected and will return a parsable toString.
+ *
  * @author bratseth
  */
 @Beta
@@ -31,9 +31,9 @@ public class ScalarFunctions {
     public static DoubleUnaryOperator sqrt() { return new Sqrt(); }
     public static DoubleUnaryOperator square() { return new Square(); }
 
-    public static Function<List<Integer>, Double> random() { return new Random(); }
-    public static Function<List<Integer>, Double> equal(List<String> argumentNames) { return new EqualElements(argumentNames); }
-    public static Function<List<Integer>, Double> sum(List<String> argumentNames) { return new SumElements(argumentNames); }
+    public static Function<List<Long>, Double> random() { return new Random(); }
+    public static Function<List<Long>, Double> equal(List<String> argumentNames) { return new EqualElements(argumentNames); }
+    public static Function<List<Long>, Double> sum(List<String> argumentNames) { return new SumElements(argumentNames); }
 
     // Binary operators -----------------------------------------------------------------------------
 
@@ -60,7 +60,7 @@ public class ScalarFunctions {
 
     public static class Multiply implements DoubleBinaryOperator {
         @Override
-        public double applyAsDouble(double left, double right) { return left * right; }        
+        public double applyAsDouble(double left, double right) { return left * right; }
         @Override
         public String toString() { return "f(a,b)(a * b)"; }
     }
@@ -100,26 +100,26 @@ public class ScalarFunctions {
 
     // Variable-length operators -----------------------------------------------------------------------------
 
-    public static class EqualElements implements Function<List<Integer>, Double> {        
-        private final ImmutableList<String> argumentNames;        
+    public static class EqualElements implements Function<List<Long>, Double> {
+        private final ImmutableList<String> argumentNames;
         private EqualElements(List<String> argumentNames) {
             this.argumentNames = ImmutableList.copyOf(argumentNames);
         }
 
         @Override
-        public Double apply(List<Integer> values) {
+        public Double apply(List<Long> values) {
             if (values.isEmpty()) return 1.0;
-            for (Integer value : values)
+            for (Long value : values)
                 if ( ! value.equals(values.get(0)))
                     return 0.0;
             return 1.0;
         }
         @Override
-        public String toString() { 
+        public String toString() {
             if (argumentNames.size() == 0) return "1";
             if (argumentNames.size() == 1) return "1";
             if (argumentNames.size() == 2) return argumentNames.get(0) + "==" + argumentNames.get(1);
-            
+
             StringBuilder b = new StringBuilder();
             for (int i = 0; i < argumentNames.size() -1; i++) {
                 b.append("(").append(argumentNames.get(i)).append("==").append(argumentNames.get(i+1)).append(")");
@@ -130,25 +130,25 @@ public class ScalarFunctions {
         }
     }
 
-    public static class Random implements Function<List<Integer>, Double> {
+    public static class Random implements Function<List<Long>, Double> {
         @Override
-        public Double apply(List<Integer> values) {
+        public Double apply(List<Long> values) {
             return ThreadLocalRandom.current().nextDouble();
         }
         @Override
         public String toString() { return "random"; }
     }
 
-    public static class SumElements implements Function<List<Integer>, Double> {
+    public static class SumElements implements Function<List<Long>, Double> {
         private final ImmutableList<String> argumentNames;
         private SumElements(List<String> argumentNames) {
             this.argumentNames = ImmutableList.copyOf(argumentNames);
         }
 
         @Override
-        public Double apply(List<Integer> values) {
-            int sum = 0;
-            for (Integer value : values)
+        public Double apply(List<Long> values) {
+            long sum = 0;
+            for (Long value : values)
                 sum += value;
             return (double)sum;
         }
-- 
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