Add a JNI to get the frequency

Bug: 4192129
Change-Id: I3f220f5a10114d4eb23956148076cf76220bda0f

1 files changed, 3 insertions, 2 deletions

diff --git a/java/src/com/android/inputmethod/latin/BinaryDictionary.java b/java/src/com/android/inputmethod/latin/BinaryDictionary.java
index e18aee6ff..cb1069cfb 100644
--- a/java/src/com/android/inputmethod/latin/BinaryDictionary.java
+++ b/java/src/com/android/inputmethod/latin/BinaryDictionary.java
@@ -84,7 +84,7 @@ public class BinaryDictionary extends Dictionary {
     private native long openNative(String sourceDir, long dictOffset, long dictSize,
             int typedLetterMultiplier, int fullWordMultiplier, int maxWordLength, int maxWords);
     private native void closeNative(long dict);
-    private native boolean isValidWordNative(long dict, int[] word, int wordLength);
+    private native int getFrequencyNative(long dict, int[] word, int wordLength);
     private native boolean isValidBigramNative(long dict, int[] word1, int[] word2);
     private native int getSuggestionsNative(long dict, long proximityInfo, int[] xCoordinates,
             int[] yCoordinates, int[] inputCodes, int codesSize, int[] prevWordForBigrams,
@@ -203,7 +203,8 @@ public class BinaryDictionary extends Dictionary {
     public boolean isValidWord(CharSequence word) {
         if (word == null) return false;
         int[] chars = StringUtils.toCodePointArray(word.toString());
-        return isValidWordNative(mNativeDict, chars, chars.length);
+        final int freq = getFrequencyNative(mNativeDict, chars, chars.length);
+        return freq >= 0;
     }
 
     // TODO: Add a batch process version (isValidBigramMultiple?) to avoid excessive numbers of jni