hadoop TimelineParserForExistFilters 源码
haddop TimelineParserForExistFilters 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice/src/main/java/org/apache/hadoop/yarn/server/timelineservice/reader/TimelineParserForExistFilters.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.server.timelineservice.reader;
import org.apache.hadoop.classification.InterfaceAudience.Private;
import org.apache.hadoop.classification.InterfaceStability.Unstable;
import org.apache.hadoop.yarn.server.timelineservice.reader.filter.TimelineCompareOp;
import org.apache.hadoop.yarn.server.timelineservice.reader.filter.TimelineExistsFilter;
import org.apache.hadoop.yarn.server.timelineservice.reader.filter.TimelineFilter;
/**
* Used for parsing existence filters such as event filters. These filters
* check for existence of a value. For example, in case of event filters, they
* check if an event exists or not and accordingly return an entity.
*/
@Private
@Unstable
class TimelineParserForExistFilters extends TimelineParserForEqualityExpr {
public TimelineParserForExistFilters(String expression, char delimiter) {
super(expression, "Event Filter", delimiter);
}
protected TimelineFilter createFilter() {
return new TimelineExistsFilter();
}
protected void setValueToCurrentFilter(String value) {
((TimelineExistsFilter)getCurrentFilter()).setValue(value);
}
protected void setCompareOpToCurrentFilter(TimelineCompareOp compareOp) {
((TimelineExistsFilter)getCurrentFilter()).setCompareOp(compareOp);
}
}
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