hadoop AttributeValue 源码
haddop AttributeValue 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/nodelabels/AttributeValue.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.nodelabels;
import java.io.IOException;
/**
* Interface to capture operations on AttributeValue.
*/
public interface AttributeValue {
/**
* @return original value which was set.
*/
String getValue();
/**
* validate the value based on the type and initialize for further compare
* operations.
*
* @param value
* @throws IOException
*/
void validateAndInitializeValue(String value) throws IOException;
/**
* compare the value against the other based on the
* AttributeExpressionOperation.
*
* @param other
* @param op
* @return true if value <code>other</code> matches the current value for the
* operation <code>op</code>.
*/
boolean compareForOperation(AttributeValue other,
AttributeExpressionOperation op);
}
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