Package org.apache.nemo.runtime.common.metric

Class StateTransitionEvent<T extends java.io.Serializable>

java.lang.Object

org.apache.nemo.runtime.common.metric.Event

org.apache.nemo.runtime.common.metric.StateTransitionEvent<T>

Type Parameters:

T - class of state for the metric.

All Implemented Interfaces:

java.io.Serializable

public final class StateTransitionEvent<T extends java.io.Serializable>
extends Event

Event of state transition. It contains timestamp and the state transition.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
StateTransitionEvent(long timestamp, T prevState, T newState)

Method Summary

Modifier and Type	Method	Description
T	getNewState()	Get new state.
T	getPrevState()	Get previous state.

Methods inherited from class org.apache.nemo.runtime.common.metric.Event

getTimestamp, setTimestamp

Methods inherited from class java.lang.Object

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

Constructor Detail

StateTransitionEvent

public StateTransitionEvent(long timestamp,
                            T prevState,
                            T newState)

Method Detail

getPrevState

public T getPrevState()

Get previous state.

Returns:

previous state.

getNewState

public T getNewState()

Get new state.

Returns:

new state.