Package org.apache.solr.cluster.placement

Interface PlacementContext

All Known Implementing Classes:
SimplePlacementContextImpl
public interface PlacementContext
Placement context makes it easier to pass around and access main placement-related components.

  • Method Details

    • getCluster

      Cluster getCluster()
      Initial state of the cluster. Note there are Set's and Map's accessible from the Cluster and other reachable instances. These collection will not change while the plugin is executing and will be thrown away once the plugin is done. The plugin code can therefore modify them if needed.

    • getAttributeFetcher

      AttributeFetcher getAttributeFetcher()
      Factory used by the plugin to fetch additional attributes from the cluster nodes, such as count of cores, system properties etc..

    • getPlacementPlanFactory

      PlacementPlanFactory getPlacementPlanFactory()
      Factory used to create instances of PlacementPlan to return computed decision.

    • getBalancePlanFactory

      BalancePlanFactory getBalancePlanFactory()
      Factory used to create instances of BalancePlan to return computed decision.