hadoop PlacementScope 源码
haddop PlacementScope 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/src/main/java/org/apache/hadoop/yarn/service/api/records/PlacementScope.java
/*
* 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.hadoop.yarn.service.api.records;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.yarn.api.resource.PlacementConstraints;
import com.fasterxml.jackson.annotation.JsonValue;
import io.swagger.annotations.ApiModel;
/**
* The scope of placement for the containers of a component.
**/
@InterfaceAudience.Public
@InterfaceStability.Unstable
@ApiModel(description = "The scope of placement for the containers of a "
+ "component.")
public enum PlacementScope {
NODE(PlacementConstraints.NODE), RACK(PlacementConstraints.RACK);
private String value;
PlacementScope(String value) {
this.value = value;
}
public String getValue() {
return value;
}
@Override
@JsonValue
public String toString() {
return value;
}
}
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