Package org.apache.flink.runtime.accumulators

Class AccumulatorSnapshot

java.lang.Object

org.apache.flink.runtime.accumulators.AccumulatorSnapshot

All Implemented Interfaces:

Serializable

public class AccumulatorSnapshot
extends Object
implements Serializable

This class encapsulates a map of accumulators for a single task. It is used for the transfer from TaskManagers to the JobManager and from the JobManager to the Client.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
AccumulatorSnapshot(org.apache.flink.api.common.JobID jobID, ExecutionAttemptID executionAttemptID, Map<String,org.apache.flink.api.common.accumulators.Accumulator<?,?>> userAccumulators)

Method Summary

Modifier and Type	Method	Description
Map<String,org.apache.flink.api.common.accumulators.Accumulator<?,?>>	deserializeUserAccumulators(ClassLoader classLoader)	Gets the user-defined accumulators values.
ExecutionAttemptID	getExecutionAttemptID()
org.apache.flink.api.common.JobID	getJobID()

Methods inherited from class java.lang.Object

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

Constructor Details

AccumulatorSnapshot

public AccumulatorSnapshot(org.apache.flink.api.common.JobID jobID,
 ExecutionAttemptID executionAttemptID,
 Map<String,org.apache.flink.api.common.accumulators.Accumulator<?,?>> userAccumulators)
                    throws IOException

Throws:

IOException

Method Details

getJobID

public org.apache.flink.api.common.JobID getJobID()

getExecutionAttemptID

public ExecutionAttemptID getExecutionAttemptID()

deserializeUserAccumulators

public Map<String,org.apache.flink.api.common.accumulators.Accumulator<?,?>> deserializeUserAccumulators(ClassLoader classLoader)
                                                                                                  throws IOException,
ClassNotFoundException

Gets the user-defined accumulators values.

Returns:

the serialized map

Throws:

IOException

ClassNotFoundException