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SAMZA-889: Change log not working properly with In memory Store
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71 changes: 71 additions & 0 deletions
71
samza-api/src/main/java/org/apache/samza/storage/StoreProperties.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| /* | ||
| * 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.samza.storage; | ||
|
|
||
| /** | ||
| * Immutable class that defines the properties of a Store | ||
| */ | ||
| public class StoreProperties { | ||
| private final boolean persistedToDisk; | ||
| private final boolean loggedStore; | ||
|
|
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| private StoreProperties( | ||
| final boolean persistedToDisk, | ||
| final boolean loggedStore) { | ||
| this.persistedToDisk = persistedToDisk; | ||
| this.loggedStore = loggedStore; | ||
| } | ||
|
|
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| /** | ||
| * Flag to indicate whether a store can be persisted to disk or not | ||
| * | ||
| * @return True, if store can be flushed to disk. False, by default. | ||
| */ | ||
| public boolean isPersistedToDisk() { | ||
| return persistedToDisk; | ||
| } | ||
|
|
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| /** | ||
| * Flag to indicate whether a store is associated with a changelog (used for recovery) or not | ||
| * | ||
| * @return True, if changelog is enabled. False, by default. | ||
| */ | ||
| public boolean isLoggedStore() { | ||
| return loggedStore; | ||
| } | ||
|
|
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| public static class StorePropertiesBuilder { | ||
| private boolean persistedToDisk = false; | ||
| private boolean loggedStore = false; | ||
|
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| public StorePropertiesBuilder setPersistedToDisk(boolean persistedToDisk) { | ||
| this.persistedToDisk = persistedToDisk; | ||
| return this; | ||
| } | ||
|
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| public StorePropertiesBuilder setLoggedStore(boolean loggedStore) { | ||
| this.loggedStore = loggedStore; | ||
| return this; | ||
| } | ||
|
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| public StoreProperties build() { | ||
| return new StoreProperties(persistedToDisk, loggedStore); | ||
| } | ||
| } | ||
| } |
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