io.druid.query.aggregation.post

Class JavaScriptPostAggregator

java.lang.Object

io.druid.query.aggregation.post.JavaScriptPostAggregator

All Implemented Interfaces:

io.druid.java.util.common.Cacheable, PostAggregator

public class JavaScriptPostAggregator
extends Object
implements PostAggregator

Constructor Summary

Constructors

Constructor and Description
JavaScriptPostAggregator(String name, List<String> fieldNames, String function, io.druid.js.JavaScriptConfig config)

Method Summary

Modifier and Type	Method and Description
Object	compute(Map<String,Object> combinedAggregators)
JavaScriptPostAggregator	decorate(Map<String,AggregatorFactory> aggregators) Returns a richer post aggregator which are built from the given aggregators with their names and some accessible environmental variables such as ones in the object scope.
boolean	equals(Object o)
byte[]	getCacheKey()
Comparator	getComparator()
Set<String>	getDependentFields()
List<String>	getFieldNames()
String	getFunction()
String	getName()
int	hashCode()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JavaScriptPostAggregator

public JavaScriptPostAggregator(String name,
                                List<String> fieldNames,
                                String function,
                                io.druid.js.JavaScriptConfig config)

Method Detail

getDependentFields

public Set<String> getDependentFields()

Specified by:

getDependentFields in interface PostAggregator

getComparator

public Comparator getComparator()

Specified by:

getComparator in interface PostAggregator

compute

public Object compute(Map<String,Object> combinedAggregators)

Specified by:

compute in interface PostAggregator

getCacheKey

public byte[] getCacheKey()

Specified by:

getCacheKey in interface io.druid.java.util.common.Cacheable

getName

public String getName()

Specified by:

getName in interface PostAggregator

decorate

public JavaScriptPostAggregator decorate(Map<String,AggregatorFactory> aggregators)

Description copied from interface: PostAggregator

Returns a richer post aggregator which are built from the given aggregators with their names and some accessible environmental variables such as ones in the object scope.

Specified by:

decorate in interface PostAggregator

Parameters:

aggregators - A map of aggregator factories with their names.

getFieldNames

public List<String> getFieldNames()

getFunction

public String getFunction()

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object