com.groupon.lex.metrics.history.xdr

Interface ColumnMajorTSData

All Known Implementing Classes:

ReadonlyTableFile, TmpFileBasedColumnMajorTSData

public interface ColumnMajorTSData

Method Summary

Modifier and Type	Method and Description
Set<GroupName>	getGroupNames() Retrieve all group names covered in this.
Collection<org.joda.time.DateTime>	getGroupTimestamps(GroupName group) Retrieve all timestamps at which this group exists.
Set<MetricName>	getMetricNames(GroupName group) Retrieve all metric names in the specific group.
Map<org.joda.time.DateTime,MetricValue>	getMetricValues(GroupName group, MetricName metric) Retrieve all metric values, mapped by timestamp.
Collection<org.joda.time.DateTime>	getTimestamps() Retrieve all timestamps covered in this.

Method Detail

getTimestamps

Collection<org.joda.time.DateTime> getTimestamps()

Retrieve all timestamps covered in this.

Returns:

The timestamps covered in this. Timestamps may be unordered.

getGroupNames

Set<GroupName> getGroupNames()

Retrieve all group names covered in this.

Returns:

The group names present in this TSData.

getGroupTimestamps

Collection<org.joda.time.DateTime> getGroupTimestamps(GroupName group)

Retrieve all timestamps at which this group exists.

Returns:

The timestamps at which the group exists. Timestamps may be unordered.

getMetricNames

Set<MetricName> getMetricNames(GroupName group)

Retrieve all metric names in the specific group.

Parameters:

group - The group for which to look up metric names.

Returns:

All metric names for the given group (irrespective of at which timestamp).

getMetricValues

Map<org.joda.time.DateTime,MetricValue> getMetricValues(GroupName group,
                                                        MetricName metric)

Retrieve all metric values, mapped by timestamp.

Parameters:

group - The group in which to look for values.

metric - The metric in the group, for which to retrieve metric values.

Returns:

A map of timestamped metric values.