# Hierarchy For Package org.eclipse.viatra.query.runtime.rete.aggregation

Package Hierarchies:

- All Packages

## Class Hierarchy

- java.lang.Object
  - org.eclipse.viatra.query.runtime.rete.aggregation.AbstractColumnAggregatorNode.NetworkStructureChangeSensitiveLogic
  - org.eclipse.viatra.query.runtime.rete.network.BaseNode (implements org.eclipse.viatra.query.runtime.rete.network.Node)
    - org.eclipse.viatra.query.runtime.rete.index.StandardIndexer (implements org.eclipse.viatra.query.runtime.rete.index.Indexer, org.eclipse.viatra.query.runtime.rete.network.NetworkStructureChangeSensitiveNode)
      - org.eclipse.viatra.query.runtime.rete.aggregation.AbstractColumnAggregatorNode.AggregatorOuterIdentityIndexer
      - org.eclipse.viatra.query.runtime.rete.aggregation.AbstractColumnAggregatorNode.AggregatorOuterIndexer
    - org.eclipse.viatra.query.runtime.rete.network.StandardNode (implements org.eclipse.viatra.query.runtime.rete.network.NetworkStructureChangeSensitiveNode, org.eclipse.viatra.query.runtime.rete.network.Supplier)
      - org.eclipse.viatra.query.runtime.rete.aggregation.IndexerBasedAggregatorNode (implements org.eclipse.viatra.query.runtime.rete.aggregation.IAggregatorNode)
        - org.eclipse.viatra.query.runtime.rete.aggregation.CountNode
      - org.eclipse.viatra.query.runtime.rete.single.SingleInputNode (implements org.eclipse.viatra.query.runtime.rete.network.Tunnel)
        - org.eclipse.viatra.query.runtime.rete.aggregation.AbstractColumnAggregatorNode<Domain,​Accumulator,​AggregateResult> (implements org.eclipse.viatra.query.runtime.matchers.util.Clearable, org.eclipse.viatra.query.runtime.rete.aggregation.IAggregatorNode)
          - org.eclipse.viatra.query.runtime.rete.aggregation.ColumnAggregatorNode<Domain,​Accumulator,​AggregateResult> (implements org.eclipse.viatra.query.runtime.rete.network.PosetAwareReceiver, org.eclipse.viatra.query.runtime.rete.network.RederivableNode)
  - org.eclipse.viatra.query.runtime.rete.aggregation.GroupedMap<GroupedKeyType,​ValueType> (implements java.util.Map<K,​V>)
  - org.eclipse.viatra.query.runtime.rete.aggregation.GroupedSet<GroupingValueType,​GroupedKeyType,​WholeKeyType> (implements java.util.Set<E>)

## Interface Hierarchy

- org.eclipse.viatra.query.runtime.rete.aggregation.IAggregatorNode