/* | |
* 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 | |
* <p> | |
* http://www.apache.org/licenses/LICENSE-2.0 | |
* <p> | |
* 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.eagle.app.environment.builder; | |
import java.util.Arrays; | |
import java.util.List; | |
import java.util.concurrent.TimeUnit; | |
public abstract class AggregateFunction implements TransformFunction { | |
private String aggFieldName; | |
private String resultFieldName; | |
private List<String> groupByFieldNames; | |
private long windowLengthMs; | |
public List<String> getGroupByFieldNames() { | |
return groupByFieldNames; | |
} | |
public void setGroupByFieldNames(List<String> groupByFieldNames) { | |
this.groupByFieldNames = groupByFieldNames; | |
} | |
public String getResultFieldName() { | |
return resultFieldName; | |
} | |
public void setResultFieldName(String resultFieldName) { | |
this.resultFieldName = resultFieldName; | |
} | |
public String getAggFieldName() { | |
return aggFieldName; | |
} | |
public void setAggFieldName(String aggFieldName) { | |
this.aggFieldName = aggFieldName; | |
} | |
public AggregateFunction asField(String resultFieldName) { | |
this.setResultFieldName(resultFieldName); | |
return this; | |
} | |
public AggregateFunction groupBy(String... groupByFieldNames) { | |
this.setGroupByFieldNames(Arrays.asList(groupByFieldNames)); | |
return this; | |
} | |
public AggregateFunction windowBy(long windowLength, TimeUnit timeUnit) { | |
this.windowLengthMs = timeUnit.toMillis(windowLength); | |
return this; | |
} | |
} |