Package io.substrait.relation

Class ImmutableGrouping.Builder

java.lang.Object
io.substrait.relation.ImmutableGrouping.Builder
Enclosing class:
ImmutableGrouping
public static final class ImmutableGrouping.Builder extends Object
Builds instances of type ImmutableGrouping. Initialize attributes and then invoke the build() method to create an immutable instance.

Builder is not thread-safe and generally should not be stored in a field or collection, but instead used immediately to create instances.

  • Method Details

    • from

      public final ImmutableGrouping.Builder from(Aggregate.Grouping instance)
      Fill a builder with attribute values from the provided Grouping instance. Regular attribute values will be replaced with those from the given instance. Absent optional values will not replace present values. Collection elements and entries will be added, not replaced.
      Parameters:
      instance - The instance from which to copy values
      Returns:
      this builder for use in a chained invocation

    • addExpressions

      public final ImmutableGrouping.Builder addExpressions(Expression element)
      Adds one element to expressions list.
      Parameters:
      element - A expressions element
      Returns:
      this builder for use in a chained invocation

    • addExpressions

      public final ImmutableGrouping.Builder addExpressions(Expression... elements)
      Adds elements to expressions list.
      Parameters:
      elements - An array of expressions elements
      Returns:
      this builder for use in a chained invocation

    • expressions

      public final ImmutableGrouping.Builder expressions(Iterable<? extends Expression> elements)
      Sets or replaces all elements for expressions list.
      Parameters:
      elements - An iterable of expressions elements
      Returns:
      this builder for use in a chained invocation

    • addAllExpressions

      public final ImmutableGrouping.Builder addAllExpressions(Iterable<? extends Expression> elements)
      Adds elements to expressions list.
      Parameters:
      elements - An iterable of expressions elements
      Returns:
      this builder for use in a chained invocation

    • build

      public ImmutableGrouping build()
      Builds a new ImmutableGrouping.
      Returns:
      An immutable instance of Grouping
      Throws:
      IllegalStateException - if any required attributes are missing