org.geotools.coverage.io

Enum ReadType

Object

Enum<ReadType>

ReadType

All Implemented Interfaces:

Serializable, Comparable<ReadType>

public enum ReadType
extends Enum<ReadType>

This enum can be used to distinguish between differet read methods, namely, JAI ImageRead based and Java2D direct read via ImageReader.

Author:

Simone Giannecchini, GeoSolutions SAS, Stefan Alfons Krueger (alfonx), Wikisquare.de : Support for jar:file:foo.jar/bar.properties URLs

Enum Constant Summary

Enum Constants

Enum Constant and Description
DIRECT_READ
JAI_IMAGEREAD
UNSPECIFIED

Method Summary

Modifier and Type	Method and Description
static ReadType	getDefault() Default ReadType enumeration.
abstract RenderedImage	read(ImageReadParam readParameters, int imageIndex, URL granuleUrl, Rectangle rasterDimensions, ImageReader reader, Hints hints, boolean closeElements) Load the raster data from the underlying source with the specified read type.
static ReadType	valueOf(String name) Returns the enum constant of this type with the specified name.
static ReadType[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class Enum

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

Methods inherited from class Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

DIRECT_READ

public static final ReadType DIRECT_READ

JAI_IMAGEREAD

public static final ReadType JAI_IMAGEREAD

UNSPECIFIED

public static final ReadType UNSPECIFIED

Method Detail

values

public static ReadType[] 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 (ReadType c : ReadType.values())
    System.out.println(c);

Returns:

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

valueOf

public static ReadType 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

getDefault

public static ReadType getDefault()

Default ReadType enumeration.

We use the JAI ImageRead as the default type so that we can be sure that we can read very large mosaics with deferred loading.

Returns:

the default ReadType.

read

public abstract RenderedImage read(ImageReadParam readParameters,
                                   int imageIndex,
                                   URL granuleUrl,
                                   Rectangle rasterDimensions,
                                   ImageReader reader,
                                   Hints hints,
                                   boolean closeElements)

Load the raster data from the underlying source with the specified read type.

Parameters:

readParameters -

imageIndex -

rasterUrl -

readDimension -

hints - Hints to control the read process

Returns:

a RenderedImage instance that matches the provided request parameters as close as possible.

Throws:

IOException - in case something bad occurs during the decoding process.