Package io.substrait.relation

Class ImmutableGrouping

java.lang.Object
io.substrait.relation.Aggregate.Grouping
io.substrait.relation.ImmutableGrouping
public final class ImmutableGrouping extends Aggregate.Grouping
Immutable implementation of Aggregate.Grouping.

Use the builder to create immutable instances: ImmutableGrouping.builder().

  • Method Details

    • getExpressions

      public List<Expression> getExpressions()
      Specified by:
      getExpressions in class Aggregate.Grouping
      Returns:
      The value of the expressions attribute

    • withExpressions

      public final ImmutableGrouping withExpressions(Expression... elements)
      Copy the current immutable object with elements that replace the content of expressions.
      Parameters:
      elements - The elements to set
      Returns:
      A modified copy of this object

    • withExpressions

      public final ImmutableGrouping withExpressions(Iterable<? extends Expression> elements)
      Copy the current immutable object with elements that replace the content of expressions. A shallow reference equality check is used to prevent copying of the same value by returning this.
      Parameters:
      elements - An iterable of expressions elements to set
      Returns:
      A modified copy or this if not changed

    • equals

      public boolean equals(Object another)
      This instance is equal to all instances of ImmutableGrouping that have equal attribute values.
      Overrides:
      equals in class Object
      Returns:
      true if this is equal to another instance

    • hashCode

      public int hashCode()
      Computes a hash code from attributes: expressions.
      Overrides:
      hashCode in class Object
      Returns:
      hashCode value

    • toString

      public String toString()
      Prints the immutable value Grouping with attribute values.
      Overrides:
      toString in class Object
      Returns:
      A string representation of the value

    • copyOf

      public static ImmutableGrouping copyOf(Aggregate.Grouping instance)
      Creates an immutable copy of a Aggregate.Grouping value. Uses accessors to get values to initialize the new immutable instance. If an instance is already immutable, it is returned as is.
      Parameters:
      instance - The instance to copy
      Returns:
      A copied immutable Grouping instance

    • builder

      public static ImmutableGrouping.Builder builder()
      Creates a builder for ImmutableGrouping. 
       ImmutableGrouping.builder()
    .addExpressions|addAllExpressions(io.substrait.expression.Expression) // expressions elements
    .build();
      Returns:
      A new ImmutableGrouping builder