com.netflix.spectator.atlas.impl

Class DataExpr.KeepRollup

java.lang.Object

com.netflix.spectator.atlas.impl.DataExpr.KeepRollup

All Implemented Interfaces:

DataExpr

Enclosing interface:

DataExpr

public static final class DataExpr.KeepRollup
extends java.lang.Object
implements DataExpr

Rollup inputs by only keeping the specified keys. This is typically used with a rollup config to reduce the amount of data going out. If a blacklist of keys is needed, then see DataExpr.DropRollup.

Nested Class Summary

Nested classes/interfaces inherited from interface com.netflix.spectator.atlas.impl.DataExpr

DataExpr.AggregateFunction, DataExpr.Aggregator, DataExpr.All, DataExpr.Count, DataExpr.DropRollup, DataExpr.GroupBy, DataExpr.KeepRollup, DataExpr.Max, DataExpr.Min, DataExpr.Sum

Method Summary

Modifier and Type	Method and Description
DataExpr.Aggregator	aggregator() Get an aggregator using the default set of tags for the final result.
DataExpr.Aggregator	aggregator(java.util.Map<java.lang.String,java.lang.String> ignored) Get an aggregator that can be incrementally fed values.
boolean	equals(java.lang.Object obj)
int	hashCode()
Query	query() Query for selecting the input measurements that should be aggregated.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.netflix.spectator.atlas.impl.DataExpr

eval

Method Detail

query

public Query query()

Description copied from interface: DataExpr

Query for selecting the input measurements that should be aggregated.

Specified by:

query in interface DataExpr

aggregator

public DataExpr.Aggregator aggregator(java.util.Map<java.lang.String,java.lang.String> ignored)

Description copied from interface: DataExpr

Get an aggregator that can be incrementally fed values. See DataExpr.eval(Iterable) if you already have the completed list of values.

Specified by:

aggregator in interface DataExpr

Parameters:

ignored - The set of tags for the final aggregate.

Returns:

Aggregator for this data expression.

aggregator

public DataExpr.Aggregator aggregator()

Description copied from interface: DataExpr

Get an aggregator using the default set of tags for the final result. The tags will be extracted based on the exact matches for the underlying query.

Specified by:

aggregator in interface DataExpr

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object