# Package org.eclipse.viatra.transformation.evm.specific.event

- Class Summary
  Class | Description
  --- | ---
  LightweightAttributeMonitor<MatchType extends IPatternMatch> |
  ViatraQueryEvent<Match extends IPatternMatch> |
  ViatraQueryEventHandler<Match extends IPatternMatch> |
  ViatraQueryEventRealm |
  ViatraQueryEventSource<Match extends IPatternMatch> |
  ViatraQueryEventSourceSpecification<Match extends IPatternMatch> |
  ViatraQueryMatchEventFilter<Match extends IPatternMatch> |
  ViatraQueryMultiMatchEventFilter<Match extends IPatternMatch> | Multi pattern match event filter.
  ViatraQueryRuleInstanceBuilder<Match extends IPatternMatch> |

- Enum Summary
  Enum | Description
  --- | ---
  ViatraQueryFilterSemantics | Semantics for VIATRA query match-based filtering.