Examples of cascading.pipe.Splice

cascading.pipe.Splice
The base class for {@link GroupBy}, {@link CoGroup}, {@link Merge}, and {@link HashJoin}. This class should not be used directly. @see GroupBy @see CoGroup @see Merge @see HashJoin

      {
      rhsDuct = createBoundaryStage( (Boundary) element, role );
      }
    else if( element instanceof Splice )
      {
      Splice spliceElement = (Splice) element;


      if( spliceElement.isGroupBy() )
        rhsDuct = createGroupByGate( (GroupBy) spliceElement, role );
      else if( spliceElement.isCoGroup() )
        rhsDuct = createCoGroupGate( (CoGroup) spliceElement, role );
      else if( spliceElement.isMerge() )
        rhsDuct = createMergeStage( (Merge) element, role );
      else
        rhsDuct = createHashJoinGate( (HashJoin) element );
      }
    else if( element instanceof Tap )

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  private void setOrdinal( FlowElement previous, Pipe current, Scope scope )
    {
    if( current instanceof Splice )
      {
      Splice splice = (Splice) current;


      Integer ordinal;


      if( previous instanceof Tap ) // revert to pipe name
        ordinal = splice.getPipePos().get( scope.getName() );
      else // GroupBy allows for duplicate pipe names, this guarantees correct ordinality
        ordinal = FlowElements.findOrdinal( splice, (Pipe) previous );


      scope.setOrdinal( ordinal );


      Set<Scope> scopes = new HashSet<>( incomingEdgesOf( current ) );


      scopes.remove( scope );


      for( Scope other : scopes )
        {
        if( other.getOrdinal() == scope.getOrdinal() )
          throw new IllegalStateException( "duplicate ordinals" );
        }


      if( splice.isJoin() && ordinal != 0 )
        scope.setNonBlocking( false );
      }
    }

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    final Pipe previous = pipe.getPrevious()[ 0 ];


    if( !( previous instanceof Splice ) )
      return null;


    final Splice splice = (Splice) previous;


    if( splice.getDeclaredFields() == null )
      return null;


    return fieldNames( splice.getDeclaredFields() );
    }

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cascading.flow.planner.Scope

cascading.flow.stream.graph.NodeStreamGraph

cascading.lingual.optiq.CalcProjectUtil

cascading.pipe.joiner.InnerJoin

cascading.tuple.Fields

java.lang.reflect.Type

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