1 files changed, 22 insertions, 0 deletions
diff --git a/container-search/src/main/java/com/yahoo/search/grouping/request/ToDoubleFunction.java b/container-search/src/main/java/com/yahoo/search/grouping/request/ToDoubleFunction.java
new file mode 100644
index 00000000000..8eab2af8691
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+++ b/container-search/src/main/java/com/yahoo/search/grouping/request/ToDoubleFunction.java
@@ -0,0 +1,22 @@
+// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.search.grouping.request;
+
+import java.util.Arrays;
+
+/**
+ * This class represents a todouble-function in a {@link GroupingExpression}. It converts the result of the argument to
+ * a double. If the argument can not be converted, this function returns 0.
+ *
+ * @author <a href="mailto:balder@yahoo-inc.com">Henning Baldersheim</a>
+ */
+public class ToDoubleFunction extends FunctionNode {
+
+    /**
+     * Constructs a new instance of this class.
+     *
+     * @param exp The expression to evaluate.
+     */
+    public ToDoubleFunction(GroupingExpression exp) {
+        super("todouble", Arrays.asList(exp));
+    }
+}