GatherSplitter (org.btrplace-scheduler 1.12.0 API)

java.lang.Object

org.btrplace.scheduler.runner.disjoint.splitter.GatherSplitter

All Implemented Interfaces:: ConstraintSplitter<Gather>

public class GatherSplitter
extends Object
implements ConstraintSplitter<Gather>

Splitter for Gather constraints.

When the constraint focuses VMs among different partitions, then it is sure the problem has no solutions.

Author:: Fabien Hermenier

Constructor Summary

Constructors

Constructor Description

GatherSplitter()

Method Summary

Modifier and Type	Method	Description
`Class<Gather>`	`getKey()`	Get the class of the Constraint associated to the splitter.
`boolean`	`split(Gather cstr, Instance origin, List<Instance> partitions, gnu.trove.map.hash.TIntIntHashMap vmsPosition, gnu.trove.map.hash.TIntIntHashMap nodePosition)`	Ensure a given constraint fit into a single partition.

Methods inherited from class java.lang.Object

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

Constructor Details
- GatherSplitter
  
  public GatherSplitter()
Method Details
- getKey
  
  public Class<Gather> getKey()
  
  Description copied from interface: ConstraintSplitter
  
  Get the class of the Constraint associated to the splitter.
  
  Specified by:
  
  getKey in interface ConstraintSplitter<Gather>
  
  Returns:
  
  a Class derived from Constraint
- split
  
  public boolean split(Gather cstr, Instance origin, List<Instance> partitions, gnu.trove.map.hash.TIntIntHashMap vmsPosition, gnu.trove.map.hash.TIntIntHashMap nodePosition)
  
  Description copied from interface: ConstraintSplitter
  
  Ensure a given constraint fit into a single partition. If necessary, the constraint may have be split. this call inserts the constrain (or its subdivisions) inside their respective instances
  
  Specified by:
  
  split in interface ConstraintSplitter<Gather>
  
  Parameters:
  
  cstr - the model constraint
  
  origin - the original instance to split
  
  partitions - the possible partitions @return false iff this leads to a problem without solutions.
  
  vmsPosition - the partition associated to each VM
  
  nodePosition - the partition associated to each node
  
  Returns:
  
  true iff the split was successful. false otherwise