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Posted to commits@flink.apache.org by al...@apache.org on 2015/11/24 13:49:23 UTC
flink git commit: [FLINK-3070] Add AsynchronousStateHandle
Repository: flink
Updated Branches:
refs/heads/master f02369af7 -> f887ba81e
[FLINK-3070] Add AsynchronousStateHandle
This extends StateHandle with a materialize() method. The asynchronous
handle represents state and can materialize it when required.
Project: http://git-wip-us.apache.org/repos/asf/flink/repo
Commit: http://git-wip-us.apache.org/repos/asf/flink/commit/f887ba81
Tree: http://git-wip-us.apache.org/repos/asf/flink/tree/f887ba81
Diff: http://git-wip-us.apache.org/repos/asf/flink/diff/f887ba81
Branch: refs/heads/master
Commit: f887ba81e986058308d1f56f7a6efed00166723c
Parents: f02369a
Author: Aljoscha Krettek <al...@gmail.com>
Authored: Tue Nov 24 13:45:23 2015 +0100
Committer: Aljoscha Krettek <al...@gmail.com>
Committed: Tue Nov 24 13:47:58 2015 +0100
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.../runtime/state/AsynchronousStateHandle.java | 32 ++++++++++++++++++++
1 file changed, 32 insertions(+)
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http://git-wip-us.apache.org/repos/asf/flink/blob/f887ba81/flink-runtime/src/main/java/org/apache/flink/runtime/state/AsynchronousStateHandle.java
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diff --git a/flink-runtime/src/main/java/org/apache/flink/runtime/state/AsynchronousStateHandle.java b/flink-runtime/src/main/java/org/apache/flink/runtime/state/AsynchronousStateHandle.java
new file mode 100644
index 0000000..4e02caa
--- /dev/null
+++ b/flink-runtime/src/main/java/org/apache/flink/runtime/state/AsynchronousStateHandle.java
@@ -0,0 +1,32 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.flink.runtime.state;
+
+/**
+ * {@link StateHandle} that can asynchronously materialize the state that it represents. Instead
+ * of representing a materialized handle to state this would normally hold the (immutable) state
+ * internally and can materialize it if requested.
+ */
+public interface AsynchronousStateHandle<T> extends StateHandle<T> {
+
+ /**
+ * Materializes the state held by this {@code AsynchronousStateHandle}.
+ */
+ void materialize() throws Exception;
+}