galileo.dataset.feature

Enum FeatureType

java.lang.Object

java.lang.Enum<FeatureType>

galileo.dataset.feature.FeatureType

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<FeatureType>

public enum FeatureType
extends java.lang.Enum<FeatureType>

Enumerates the various Feature types supposed by Galileo's native data format.

Author:

malensek

Enum Constant Summary

Enum Constants

Enum Constant and Description
BINARY
DOUBLE
FLOAT
INT
INTERVAL_DOUBLE
INTERVAL_FLOAT
INTERVAL_INT
INTERVAL_LONG
LONG
NULL
STRING

Method Summary

Modifier and Type	Method and Description
static FeatureType	fromInt(int i) Determine the FeatureType associated with the given integer.
static <T> FeatureType	fromPrimitiveType(T type) Basic Feature types based on Java classes can be ascertained by inspecting their generic parameters.
boolean	isInterval() Determines whether this FeatureType is an interval type (represented by an IntervalFeatureData instance).
java.lang.Class<? extends galileo.dataset.feature.FeatureData<?>>	toClass() Provides a mapping between FeatureType elements and their corresponding FeatureData implementations.
int	toInt()
static FeatureType	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static FeatureType[]	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, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

NULL

public static final FeatureType NULL

INT

public static final FeatureType INT

LONG

public static final FeatureType LONG

FLOAT

public static final FeatureType FLOAT

DOUBLE

public static final FeatureType DOUBLE

INTERVAL_INT

public static final FeatureType INTERVAL_INT

INTERVAL_LONG

public static final FeatureType INTERVAL_LONG

INTERVAL_FLOAT

public static final FeatureType INTERVAL_FLOAT

INTERVAL_DOUBLE

public static final FeatureType INTERVAL_DOUBLE

STRING

public static final FeatureType STRING

BINARY

public static final FeatureType BINARY

Method Detail

values

public static FeatureType[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (FeatureType c : FeatureType.values())
    System.out.println(c);

Returns:

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

valueOf

public static FeatureType valueOf(java.lang.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:

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

java.lang.NullPointerException - if the argument is null

toInt

public int toInt()

isInterval

public boolean isInterval()

Determines whether this FeatureType is an interval type (represented by an IntervalFeatureData instance).

Returns:

true if the FeatureType is an an interval type.

fromInt

public static FeatureType fromInt(int i)

Determine the FeatureType associated with the given integer.

Parameters:

i - Integer representing a FeatureType element.

Returns:

the associated FeatureType for the integer, or null if no FeatureType exists.

fromPrimitiveType

public static <T> FeatureType fromPrimitiveType(T type)

Basic Feature types based on Java classes can be ascertained by inspecting their generic parameters. Other FeatureTypes, such as intervals, can't be discovered by this method.

Parameters:

type - The basic Java type to inspect

Returns:

Corresponding FeatureType for the Java type, or null if no FeatureType exists.

toClass

public java.lang.Class<? extends galileo.dataset.feature.FeatureData<?>> toClass()

Provides a mapping between FeatureType elements and their corresponding FeatureData implementations.