Package app.babylon.table.column

Interface ColumnObject.Builder<T>

Type Parameters:
T - the value type produced by the builder
All Superinterfaces:
ColumnBuilder
All Known Subinterfaces:
ColumnCategorical.Builder<T>
Enclosing interface:
ColumnObject<T>
public static interface ColumnObject.Builder<T> extends ColumnBuilder
Builder for nullable object columns.

  • Method Summary

    Modifier and Type
    Method
    Description
    ColumnObject.Builder<T>
    add(T x)
    Appends a value to the column.
    default ColumnObject.Builder<T>
    addNull()
    Appends an unset row.
    ColumnObject<T>
    build()
    Materialises the current builder contents as an immutable column.
    T
    first()
    Returns the first value currently added to the builder.
    ColumnName
    getName()
    Returns the name that will be assigned to the built column.
    T
    last()
    Returns the most recently added value.
    int
    size()
    Returns the number of rows currently accumulated by the builder.

  • Method Details

    • getName

      ColumnName getName()
      Description copied from interface: ColumnBuilder
      Returns the name that will be assigned to the built column.
      Specified by:
      getName in interface ColumnBuilder
      Returns:
      the target column name

    • add

      ColumnObject.Builder<T> add(T x)
      Appends a value to the column.
      Parameters:
      x - the value to append, which may be null
      Returns:
      this builder

    • build

      ColumnObject<T> build()
      Description copied from interface: ColumnBuilder
      Materialises the current builder contents as an immutable column.
      Specified by:
      build in interface ColumnBuilder
      Returns:
      the built column

    • addNull

      default ColumnObject.Builder<T> addNull()
      Appends an unset row.
      Returns:
      this builder

    • first

      T first()
      Returns the first value currently added to the builder.
      Returns:
      the first value

    • last

      T last()
      Returns the most recently added value.
      Returns:
      the last value

    • size

      int size()
      Returns the number of rows currently accumulated by the builder.
      Returns:
      the builder size