Package app.babylon.table.column

Interface ColumnCategorical.Builder<T>

Type Parameters:

T - the value type

All Superinterfaces:

ColumnBuilder, ColumnObject.Builder<T>

Enclosing interface:

ColumnCategorical<T>

public static interface ColumnCategorical.Builder<T>
extends ColumnObject.Builder<T>

Builder for dictionary-encoded categorical columns.

Method Summary

Modifier and Type	Method	Description
ColumnCategorical.Builder<T>	add(T x)	Appends a value to the column.
ColumnCategorical.Builder<T>	addNull()	Appends an unset row.
ColumnCategorical<T>	build()	Materialises the current builder contents as an immutable column.

Methods inherited from interface app.babylon.table.column.ColumnObject.Builder

first, getName, last, size

Method Details

add

ColumnCategorical.Builder<T> add(T x)

Description copied from interface: ColumnObject.Builder

Appends a value to the column.

Specified by:

add in interface ColumnObject.Builder<T>

Parameters:

x - the value to append, which may be null

Returns:

this builder

addNull

ColumnCategorical.Builder<T> addNull()

Description copied from interface: ColumnObject.Builder

Appends an unset row.

Specified by:

addNull in interface ColumnObject.Builder<T>

Returns:

this builder

build

ColumnCategorical<T> build()

Description copied from interface: ColumnBuilder

Materialises the current builder contents as an immutable column.

Specified by:

build in interface ColumnBuilder

Specified by:

build in interface ColumnObject.Builder<T>

Returns:

the built column