Interface Reduction


public interface Reduction
An atomic reduction of one or more variables (argMinMax).
  • Method Details

    • updateMinValue

      static <T> Reduction updateMinValue(PgxVertex vertex, VertexProperty<T> property, T value)
      Create an atomic reduction of a vertex property. If the given value is less than the current value of the node property, then update the node property to the given value.
      Type Parameters:
      T -
      Parameters:
      vertex -
      property -
      value -
      Returns:
    • updateMinValue

      static <T1,T2> Reduction updateMinValue(T1 lhs, T2 rhs)
      Create an atomic reduction of a variable. If the value on the rhs is less than the value on the lhs, then update the value on the lhs.
      Type Parameters:
      T1 -
      T2 -
      Parameters:
      lhs -
      rhs -
      Returns:
    • updateMaxValue

      static <T> Reduction updateMaxValue(PgxVertex vertex, VertexProperty<T> property, T value)
      Create an atomic reduction of a vertex property. If the given value is greater than the current value of the node property, then update the node property to the given value.
      Type Parameters:
      T -
      Parameters:
      vertex -
      property -
      value -
      Returns:
    • updateMaxValue

      static <T1,T2> Reduction updateMaxValue(T1 lhs, T2 rhs)
      Create an atomic reduction of a variable. If the value on the rhs is greater than the value on the lhs, then update the value on the lhs.
      Type Parameters:
      T1 -
      T2 -
      Parameters:
      lhs -
      rhs -
      Returns:
    • andUpdate

      <T> Reduction andUpdate(PgxVertex vertex, VertexProperty<T> property, T value)
      If the reduction in the Reduction applies, also update the property the property specified here.
      Type Parameters:
      T -
      Parameters:
      vertex -
      property -
      value -
      Returns:
    • andUpdate

      <T1,T2> Reduction andUpdate(T1 lhs, T2 rhs)
      If the reduction in the Reduction applies, also update the variable specified here.
      Type Parameters:
      T1 -
      T2 -
      Parameters:
      lhs -
      rhs -
      Returns: