water.util

Class TimelineSnapshot

java.lang.Object

water.util.TimelineSnapshot

All Implemented Interfaces:

java.lang.Iterable<TimelineSnapshot.Event>, java.util.Iterator<TimelineSnapshot.Event>

public final class TimelineSnapshot
extends java.lang.Object
implements java.lang.Iterable<TimelineSnapshot.Event>, java.util.Iterator<TimelineSnapshot.Event>

Wrapper around timeline snapshot. Implements iterator interface (events are ordered according to send/receive dependencies across the nodes and trivial time dependencies inside node)

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	TimelineSnapshot.Event

Field Summary

Fields

Modifier and Type	Field and Description
java.util.HashMap<TimelineSnapshot.Event,java.util.ArrayList<TimelineSnapshot.Event>>	_sends

Constructor Summary

Constructors

Constructor and Description
TimelineSnapshot(H2O cloud, long[][] snapshot)

Method Summary

Methods

Modifier and Type	Method and Description
TimelineSnapshot.Event	getDependency(TimelineSnapshot.Event e)
boolean	hasNext() Just check if there is any non null non-issued event.
java.util.Iterator<TimelineSnapshot.Event>	iterator()
TimelineSnapshot.Event	next() Get the next event of the timeline according to the ordering.
void	remove()

Methods inherited from class java.lang.Object

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

Field Detail

_sends

public final java.util.HashMap<TimelineSnapshot.Event,java.util.ArrayList<TimelineSnapshot.Event>> _sends

Constructor Detail

TimelineSnapshot

public TimelineSnapshot(H2O cloud,
                long[][] snapshot)

Method Detail

iterator

public java.util.Iterator<TimelineSnapshot.Event> iterator()

Specified by:

iterator in interface java.lang.Iterable<TimelineSnapshot.Event>

hasNext

public boolean hasNext()

Just check if there is any non null non-issued event.

Specified by:

hasNext in interface java.util.Iterator<TimelineSnapshot.Event>

getDependency

public TimelineSnapshot.Event getDependency(TimelineSnapshot.Event e)

next

public TimelineSnapshot.Event next()

Get the next event of the timeline according to the ordering. Ordering is performed in this method. Basically there are n ordered stream of events with possible dependenencies caused by send/rcv relation. Sends are always eligible to be scheduled. Receives are eligible only if their matching send was already issued. In situation when current events of all streams are blocked (should not happen!) the oldest one is unblocked and issued. Out of all eligible events, the smallest one (according to Event.compareTo) is picked.

Specified by:

next in interface java.util.Iterator<TimelineSnapshot.Event>

remove

public void remove()

Specified by:

remove in interface java.util.Iterator<TimelineSnapshot.Event>