com.yahoo.bard.webservice.data.metric.mappers

Class PartialDataResultSetMapper

java.lang.Object

com.yahoo.bard.webservice.data.metric.mappers.ResultSetMapper

com.yahoo.bard.webservice.data.metric.mappers.PartialDataResultSetMapper

public class PartialDataResultSetMapper
extends ResultSetMapper

A mapper that removes results which overlap a missing interval set.

Constructor Summary

Constructors

Constructor and Description
PartialDataResultSetMapper(SimplifiedIntervalList missingIntervals, Supplier<SimplifiedIntervalList> volatileIntervalSupply) Build a mapper to filter results over missing intervals from a result set, retaining any that are also volatile.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o) Since a ResultSetMapper has no state associated with it, we consider two ResultSetMappers to be the same iff they are of the same class.
int	hashCode()
Result	map(Result result, ResultSetSchema schema) Remove result records which are missing and not marked as volatile.
protected ResultSetSchema	map(ResultSetSchema schema) Returns a transformed schema.

Methods inherited from class com.yahoo.bard.webservice.data.metric.mappers.ResultSetMapper

map

Methods inherited from class java.lang.Object

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

Constructor Detail

PartialDataResultSetMapper

public PartialDataResultSetMapper(SimplifiedIntervalList missingIntervals,
                                  Supplier<SimplifiedIntervalList> volatileIntervalSupply)

Build a mapper to filter results over missing intervals from a result set, retaining any that are also volatile.

Parameters:

missingIntervals - A list of intervals which represent gaps in the complete data set

volatileIntervalSupply - A supplier for intervals which should not be removed, even if incomplete

Method Detail

map

public Result map(Result result,
                  ResultSetSchema schema)

Remove result records which are missing and not marked as volatile. Any bucket which is partially volatile is not removed. In the case of the All granularity, all data is considered to be in a single bucket.

Specified by:

map in class ResultSetMapper

Parameters:

result - The result row being transformed

schema - The schema for that result

Returns:

Null if the bucket this result falls in is missing but not volatile

map

protected ResultSetSchema map(ResultSetSchema schema)

Description copied from class: ResultSetMapper

Returns a transformed schema.

Specified by:

map in class ResultSetMapper

Parameters:

schema - The schema being mapped

Returns:

The same schema or a new (altered) one

equals

public boolean equals(Object o)

Description copied from class: ResultSetMapper

Since a ResultSetMapper has no state associated with it, we consider two ResultSetMappers to be the same iff they are of the same class.

Overrides:

equals in class ResultSetMapper

Parameters:

o - The object this is being compared to

Returns:

true if the objects have the same class, false otherwise.

hashCode

public int hashCode()

Overrides:

hashCode in class ResultSetMapper