Package net.hydromatic.morel.eval

Enum Files.FileType

java.lang.Object

java.lang.Enum<Files.FileType>

net.hydromatic.morel.eval.Files.FileType

All Implemented Interfaces:

Serializable, Comparable<Files.FileType>, java.lang.constant.Constable

Enclosing class:

Files

static enum Files.FileType
extends Enum<Files.FileType>

Describes a type of file that can be read by this reader. Each file has a way to deduce the schema (set of field names and types) and to parse the file into a set of records.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
CSV
CSV_GZ
DIRECTORY
FILE

Field Summary

Fields

Modifier and Type	Field	Description
(package private) static final List<Files.FileType>	INSTANCES	The non-trivial file types.
(package private) final boolean	list	Whether this file is a list of records.
(package private) final String	suffix

Constructor Summary

Constructors

Modifier	Constructor	Description
private	FileType(String suffix, boolean list)

Method Summary

Modifier and Type	Method	Description
(package private) PairList<String,Type.Key>	deduceFields(BufferedReader r)
(package private) BufferedReader	open(File file)
static Files.FileType	valueOf(String name)	Returns the enum constant of this type with the specified name.
static Files.FileType[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

DIRECTORY

public static final Files.FileType DIRECTORY

FILE

public static final Files.FileType FILE

CSV

public static final Files.FileType CSV

CSV_GZ

public static final Files.FileType CSV_GZ

Field Details

INSTANCES

static final List<Files.FileType> INSTANCES

The non-trivial file types.

suffix

final String suffix

list

final boolean list

Whether this file is a list of records.

Constructor Details

FileType

private FileType(String suffix,
 boolean list)

Method Details

values

public static Files.FileType[] values()

Returns an array containing the constants of this enum type, in the order they are declared.

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static Files.FileType valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

open

BufferedReader open(File file)
             throws IOException

Throws:

IOException

deduceFields

PairList<String,Type.Key> deduceFields(BufferedReader r)
                                throws IOException

Throws:

IOException