flink-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From shixiaogang <...@git.apache.org>
Subject [GitHub] flink pull request #3336: [FLINK-4856][state] Add MapState in KeyedState
Date Tue, 21 Feb 2017 14:54:50 GMT
Github user shixiaogang commented on a diff in the pull request:

    --- Diff: flink-contrib/flink-statebackend-rocksdb/src/main/java/org/apache/flink/contrib/streaming/state/RocksDBMapState.java
    @@ -382,11 +342,26 @@ private UV deserializeUserValue(byte[] rawValueBytes) {
     			this.rawValueBytes = rawValueBytes;
     			this.deleted = false;
    +		public void remove() {
    +			deleted = true;
    +			rawValueBytes = null;
    +			try {
    +				db.remove(columnFamily, writeOptions, rawKeyBytes);
    +			} catch (RocksDBException e) {
    +				throw new RuntimeException("Error while removing data from RocksDB.", e);
    --- End diff --
    I modify the method signature because I find, except `ValueState`, the methods in other
states all throw `Exception`. I think it's okay because `MapState` is a common interface which
has no idea of the implementation.  The implementation  of these methods, however, should
throw some specific exception like `IOException` or `RocksDBException`. 
    I think it's reasonable. What do you think?

If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastructure@apache.org or file a JIRA ticket
with INFRA.

View raw message