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author | Christopher Tate <ctate@google.com> | 2015-05-14 22:16:32 +0000 |
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committer | Android (Google) Code Review <android-gerrit@google.com> | 2015-05-14 22:16:33 +0000 |
commit | 474bb82fd5dafdba8de917ed7a834ba68890678f (patch) | |
tree | b92a469a8b42125f81083cd33ae18c605295bf68 | |
parent | a0807a65e93aeb7c73fb2fcc68244ab324dd3c07 (diff) | |
parent | 56341e70a23338900ec015450a7eca8fdb17d8d5 (diff) | |
download | frameworks_base-474bb82fd5dafdba8de917ed7a834ba68890678f.zip frameworks_base-474bb82fd5dafdba8de917ed7a834ba68890678f.tar.gz frameworks_base-474bb82fd5dafdba8de917ed7a834ba68890678f.tar.bz2 |
Merge "Clarify docs for BackupTransport.initializeDevice()" into mnc-dev
-rw-r--r-- | core/java/android/app/backup/BackupTransport.java | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/core/java/android/app/backup/BackupTransport.java b/core/java/android/app/backup/BackupTransport.java index 9540eb1..4d2158f 100644 --- a/core/java/android/app/backup/BackupTransport.java +++ b/core/java/android/app/backup/BackupTransport.java @@ -162,8 +162,17 @@ public class BackupTransport { * this is called, {@link #finishBackup} will be called to ensure the request * is sent and received successfully. * + * <p>If the transport returns anything other than TRANSPORT_OK from this method, + * the OS will halt the current initialize operation and schedule a retry in the + * near future. Even if the transport is in a state such that attempting to + * "initialize" the backend storage is meaningless -- for example, if there is + * no current live dataset at all, or there is no authenticated account under which + * to store the data remotely -- the transport should return TRANSPORT_OK here + * and treat the initializeDevice() / finishBackup() pair as a graceful no-op. + * * @return One of {@link BackupTransport#TRANSPORT_OK} (OK so far) or - * {@link BackupTransport#TRANSPORT_ERROR} (on network error or other failure). + * {@link BackupTransport#TRANSPORT_ERROR} (to retry following network error + * or other failure). */ public int initializeDevice() { return BackupTransport.TRANSPORT_ERROR; |