From 22f01a42fcd91dae2a4e723e2477a480a11daa8e Mon Sep 17 00:00:00 2001
From: Satoshi Kataoka <satok@google.com>
Date: Tue, 20 Aug 2013 12:07:17 +0900
Subject: [PATCH] Add a functionality to clear and flush prediction dictionary
Bug: 9429906
Change-Id: I84ec444e9d46a0080dc3450b8ab32bfb99407cfe
---
.../DynamicPredictionDictionaryBase.java | 14 ++++++++++++++
.../PersonalizationDictionaryUpdateSession.java | 7 +++++++
2 files changed, 21 insertions(+)
diff --git a/java/src/com/android/inputmethod/latin/personalization/DynamicPredictionDictionaryBase.java b/java/src/com/android/inputmethod/latin/personalization/DynamicPredictionDictionaryBase.java
index 916be44816..8160501a9a 100644
--- a/java/src/com/android/inputmethod/latin/personalization/DynamicPredictionDictionaryBase.java
+++ b/java/src/com/android/inputmethod/latin/personalization/DynamicPredictionDictionaryBase.java
@@ -411,4 +411,18 @@ public abstract class DynamicPredictionDictionaryBase extends ExpandableDictiona
public void unRegisterUpdateSession(PersonalizationDictionaryUpdateSession session) {
mSessions.remove(session);
}
+
+ public void clearAndFlushDictionary() {
+ // Clear the node structure on memory
+ clearDictionary();
+ mBigramListLock.lock();
+ try {
+ // Clear the bigram list on memory
+ mBigramList.evictAll();
+ } finally {
+ mBigramListLock.unlock();
+ }
+ // Then flush the cleared state of the dictionary on disk.
+ flushPendingWrites();
+ }
}
diff --git a/java/src/com/android/inputmethod/latin/personalization/PersonalizationDictionaryUpdateSession.java b/java/src/com/android/inputmethod/latin/personalization/PersonalizationDictionaryUpdateSession.java
index 433c69c1c5..77f0cdbfa9 100644
--- a/java/src/com/android/inputmethod/latin/personalization/PersonalizationDictionaryUpdateSession.java
+++ b/java/src/com/android/inputmethod/latin/personalization/PersonalizationDictionaryUpdateSession.java
@@ -69,6 +69,13 @@ public abstract class PersonalizationDictionaryUpdateSession {
dictionary.unRegisterUpdateSession(this);
}
+ public void clearAndFlushPredictionDictionary(Context context) {
+ final DynamicPredictionDictionaryBase dictionary = getPredictionDictionary();
+ if (dictionary == null) {
+ return;
+ }
+ dictionary.clearAndFlushDictionary();
+ }
public void closeSession(Context context) {
unsetPredictionDictionary();
--
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