org.apache.ignite.internal.processors.hadoop

Interface GridHadoopCounters

public interface GridHadoopCounters

Counters store.

Method Summary

Methods

Modifier and Type	Method and Description
Collection<GridHadoopCounter>	all() Returns all existing counters.
<T extends GridHadoopCounter> T	counter(String grp, String name, Class<T> cls) Returns counter for the specified group and counter name.
void	merge(GridHadoopCounters other) Merges all counters from another store with existing counters.

Method Detail

counter

<T extends GridHadoopCounter> T counter(String grp,
                                      String name,
                                      Class<T> cls)

Returns counter for the specified group and counter name. Creates new if it does not exist.

Parameters:

grp - Counter group name.

name - Counter name.

cls - Class for new instance creation if it's needed.

Returns:

The counter that was found or added or null if create is false.

all

Collection<GridHadoopCounter> all()

Returns all existing counters.

Returns:

Collection of counters.

merge

void merge(GridHadoopCounters other)

Merges all counters from another store with existing counters.

Parameters:

other - Counters to merge with.