# Hierarchy For Package org.optaplanner.core.impl.constructionheuristic.placer

Package Hierarchies:

- All Packages

## Class Hierarchy

- java.lang.Object
  - org.optaplanner.core.impl.constructionheuristic.placer.AbstractEntityPlacer
    - org.optaplanner.core.impl.constructionheuristic.placer.PooledEntityPlacer (implements org.optaplanner.core.impl.constructionheuristic.placer.EntityPlacer)
    - org.optaplanner.core.impl.constructionheuristic.placer.QueuedEntityPlacer (implements org.optaplanner.core.impl.constructionheuristic.placer.EntityPlacer)
    - org.optaplanner.core.impl.constructionheuristic.placer.QueuedValuePlacer (implements org.optaplanner.core.impl.constructionheuristic.placer.EntityPlacer)
  - org.optaplanner.core.impl.constructionheuristic.placer.Placement<Solution_> (implements java.lang.Iterable<T>)

## Interface Hierarchy

- java.util.EventListener
  - org.optaplanner.core.impl.solver.event.SolverLifecycleListener<Solution_>
    - org.optaplanner.core.impl.phase.event.PhaseLifecycleListener<Solution_>
      - org.optaplanner.core.impl.constructionheuristic.placer.EntityPlacer (also extends java.lang.Iterable<T>)
- java.lang.Iterable<T>
  - org.optaplanner.core.impl.constructionheuristic.placer.EntityPlacer (also extends org.optaplanner.core.impl.phase.event.PhaseLifecycleListener<Solution_>)