/*
* The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
* (the "License"). You may not use this work except in compliance with the License, which is
* available at www.apache.org/licenses/LICENSE-2.0
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
* either express or implied, as more fully set forth in the License.
*
* See the NOTICE file distributed with this work for information regarding copyright ownership.
*/
package alluxio.client;
import javax.annotation.concurrent.ThreadSafe;
/**
* Specifies the type of data interaction with Alluxio.
* <ul>
* <li>For a write operation, this determines whether the data will be written into Alluxio storage.
* Metadata will always be updated in Alluxio space.</li>
* <li>For a read operation, this determines whether fully read blocks will be stored in Alluxio
* storage.</li>
* </ul>
*/
@ThreadSafe
public enum AlluxioStorageType {
/** Put the data reading or writing in Alluxio storage. */
STORE(1),
/** Do not put data to Alluxio. */
NO_STORE(2),
/**
* Same as {@link #STORE} for writes. Will move the data to highest tier before access for reads.
*/
PROMOTE(3),
;
private final int mValue;
AlluxioStorageType(int value) {
mValue = value;
}
/**
* @return whether the data should be put in Alluxio storage
*/
public boolean isStore() {
return mValue == STORE.mValue || mValue == PROMOTE.mValue;
}
/**
* @return whether the data should be promoted to the highest tier
*/
public boolean isPromote() {
return mValue == PROMOTE.mValue;
}
}