From 03cca9c42b32d8d4ba24b348f8466de42bb05cd7 Mon Sep 17 00:00:00 2001
From: Jon Bratseth <bratseth@gmail.com>
Date: Sun, 19 Sep 2021 22:03:39 +0200
Subject: Add 'encode' expression

---
 .../main/java/com/yahoo/language/process/Encoder.java   | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'linguistics/src')

diff --git a/linguistics/src/main/java/com/yahoo/language/process/Encoder.java b/linguistics/src/main/java/com/yahoo/language/process/Encoder.java
index 91de16f669b..27f73d15e54 100644
--- a/linguistics/src/main/java/com/yahoo/language/process/Encoder.java
+++ b/linguistics/src/main/java/com/yahoo/language/process/Encoder.java
@@ -14,6 +14,9 @@ import java.util.List;
  */
 public interface Encoder {
 
+    /** An instance of this which throws IllegalStateException if attempted used */
+    Encoder throwsOnUse = new FailingEncoder();
+
     /**
      * Encodes text into tokens in a list of ids.
      *
@@ -36,4 +39,18 @@ public interface Encoder {
      */
     Tensor encode(String text, Language language, TensorType tensorType);
 
+    class FailingEncoder implements Encoder {
+
+        @Override
+        public List<Integer> encode(String text, Language language) {
+            throw new IllegalStateException("No encoder has been configured");
+        }
+
+        @Override
+        public Tensor encode(String text, Language language, TensorType tensorType) {
+            throw new IllegalStateException("No encoder has been configured");
+        }
+
+    }
+
 }
-- 
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