edu.cmu.cs.cs214.hw5.core

Class Column

java.lang.Object

edu.cmu.cs.cs214.hw5.core.Column

public final class Column
extends java.lang.Object

A representation of a column containing data, with an optional header.

Constructor Summary

Constructors

Constructor and Description
Column(java.util.Optional<java.lang.String> header, java.util.List<java.lang.String> data) Create a column with the given header and the given list of data entries.

Method Summary

Modifier and Type	Method and Description
java.util.List<java.lang.String>	data() Get the data associated with this column.
java.util.Optional<java.lang.String>	header() Get the header associated with this column.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Column

public Column(java.util.Optional<java.lang.String> header,
              java.util.List<java.lang.String> data)
       throws java.lang.NullPointerException

Create a column with the given header and the given list of data entries.

Parameters:

header - the header of this column, which may be absent

data - the list of entries in this column, none of which may be null (this will be shallow-copied)

Throws:

java.lang.NullPointerException - if header == null, or data == null or data contains any null entries

Method Detail

header

public java.util.Optional<java.lang.String> header()

Get the header associated with this column.

Returns:

the column header

data

public java.util.List<java.lang.String> data()

Get the data associated with this column.

Returns:

an unmodifiable view of the data