org.apache.hadoop.yarn.api.resource

Class PlacementConstraint.DelayedOr

java.lang.Object

org.apache.hadoop.yarn.api.resource.PlacementConstraint.AbstractConstraint

org.apache.hadoop.yarn.api.resource.PlacementConstraint.CompositeConstraint<PlacementConstraint.TimedPlacementConstraint>

org.apache.hadoop.yarn.api.resource.PlacementConstraint.DelayedOr

All Implemented Interfaces:

PlacementConstraint.Visitable

Enclosing class:

PlacementConstraint

public static class PlacementConstraint.DelayedOr
extends PlacementConstraint.CompositeConstraint<PlacementConstraint.TimedPlacementConstraint>

Class that represents a composite constraint that comprises a list of timed placement constraints (see PlacementConstraint.TimedPlacementConstraint). The scheduler should try to satisfy first the first timed child constraint within the specified time window. If this is not possible, it should attempt to satisfy the second, and so on.

Constructor Summary

Constructors

Constructor and Description
DelayedOr(List<PlacementConstraint.TimedPlacementConstraint> children)
DelayedOr(PlacementConstraint.TimedPlacementConstraint... children)

Method Summary

Modifier and Type	Method and Description
<T> T	accept(PlacementConstraint.Visitor<T> visitor) Visitor pattern.
List<PlacementConstraint.TimedPlacementConstraint>	getChildren() Get the children of this composite constraint.
String	toString()

Methods inherited from class org.apache.hadoop.yarn.api.resource.PlacementConstraint.CompositeConstraint

equals, hashCode

Methods inherited from class org.apache.hadoop.yarn.api.resource.PlacementConstraint.AbstractConstraint

build

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

DelayedOr

public DelayedOr(List<PlacementConstraint.TimedPlacementConstraint> children)

DelayedOr

public DelayedOr(PlacementConstraint.TimedPlacementConstraint... children)

Method Detail

getChildren

public List<PlacementConstraint.TimedPlacementConstraint> getChildren()

Description copied from class: PlacementConstraint.CompositeConstraint

Get the children of this composite constraint.

Specified by:

getChildren in class PlacementConstraint.CompositeConstraint<PlacementConstraint.TimedPlacementConstraint>

Returns:

the children of the composite constraint

accept

public <T> T accept(PlacementConstraint.Visitor<T> visitor)

Description copied from interface: PlacementConstraint.Visitable

Visitor pattern.

Type Parameters:

T - defines the type that the visitor will use and the return type of the accept.

Parameters:

visitor - visitor to be used

Returns:

the result of visiting a given object.

toString

public String toString()

Overrides:

toString in class PlacementConstraint.AbstractConstraint