org.apache.flink.compiler

Class NonCachingDataStatistics

java.lang.Object

org.apache.flink.compiler.DataStatistics

org.apache.flink.compiler.NonCachingDataStatistics

public class NonCachingDataStatistics
extends DataStatistics

A variant of the data statistics that never caches.

Constructor Summary

Constructors

Constructor and Description
NonCachingDataStatistics()

Method Summary

Modifier and Type	Method and Description
void	cacheBaseStatistics(BaseStatistics statistics, String identifyer) Caches the given statistics.
BaseStatistics	getBaseStatistics(String inputIdentifier) Gets the base statistics for the input identified by the given identifier.

Methods inherited from class java.lang.Object

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

Constructor Detail

NonCachingDataStatistics

public NonCachingDataStatistics()

Method Detail

getBaseStatistics

public BaseStatistics getBaseStatistics(String inputIdentifier)

Description copied from class: DataStatistics

Gets the base statistics for the input identified by the given identifier.

Overrides:

getBaseStatistics in class DataStatistics

Parameters:

inputIdentifier - The identifier for the input.

Returns:

The statistics that were cached for this input.

cacheBaseStatistics

public void cacheBaseStatistics(BaseStatistics statistics,
                                String identifyer)

Description copied from class: DataStatistics

Caches the given statistics. They are later retrievable under the given identifier.

Overrides:

cacheBaseStatistics in class DataStatistics

Parameters:

statistics - The statistics to cache.

identifyer - The identifier which may be later used to retrieve the statistics.