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java.lang.Objectjavax.imageio.spi.IIOServiceProvider
javax.imageio.spi.ImageReaderWriterSpi
javax.imageio.spi.ImageWriterSpi
org.geotools.image.io.StreamImageWriter.Spi
org.geotools.image.io.text.TextImageWriter.Spi
public abstract static class TextImageWriter.Spi
Service provider interface (SPI) for TextImageWriter
s. This SPI provides a
convenient way to control the TextImageWriter
character encoding: the
charset
field. For example, many Spi
subclasses will put the
following line in their constructor:
charset
= Charset.forName("ISO-LATIN-1"); // ISO Latin Alphabet No. 1 (ISO-8859-1)
Field Summary | |
---|---|
protected java.nio.charset.Charset |
charset
Character encoding, or null for the default. |
protected java.lang.String |
lineSeparator
The line separator to use, or null for the system default. |
protected java.util.Locale |
locale
The locale for numbers formatting. |
Fields inherited from class javax.imageio.spi.ImageWriterSpi |
---|
outputTypes, readerSpiNames, STANDARD_OUTPUT_TYPE |
Fields inherited from class javax.imageio.spi.ImageReaderWriterSpi |
---|
extraImageMetadataFormatClassNames, extraImageMetadataFormatNames, extraStreamMetadataFormatClassNames, extraStreamMetadataFormatNames, MIMETypes, names, nativeImageMetadataFormatClassName, nativeImageMetadataFormatName, nativeStreamMetadataFormatClassName, nativeStreamMetadataFormatName, pluginClassName, suffixes, supportsStandardImageMetadataFormat, supportsStandardStreamMetadataFormat |
Fields inherited from class javax.imageio.spi.IIOServiceProvider |
---|
vendorName, version |
Constructor Summary | |
---|---|
TextImageWriter.Spi()
Constructs a quasi-blank TextImageWriter.Spi . |
Method Summary |
---|
Methods inherited from class org.geotools.image.io.StreamImageWriter.Spi |
---|
canEncodeImage |
Methods inherited from class javax.imageio.spi.ImageWriterSpi |
---|
canEncodeImage, createWriterInstance, createWriterInstance, getImageReaderSpiNames, getOutputTypes, isFormatLossless, isOwnWriter |
Methods inherited from class javax.imageio.spi.ImageReaderWriterSpi |
---|
getExtraImageMetadataFormatNames, getExtraStreamMetadataFormatNames, getFileSuffixes, getFormatNames, getImageMetadataFormat, getMIMETypes, getNativeImageMetadataFormatName, getNativeStreamMetadataFormatName, getPluginClassName, getStreamMetadataFormat, isStandardImageMetadataFormatSupported, isStandardStreamMetadataFormatSupported |
Methods inherited from class javax.imageio.spi.IIOServiceProvider |
---|
getDescription, getVendorName, getVersion, onDeregistration, onRegistration |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
---|
protected java.nio.charset.Charset charset
null
for the default. This field is initially
null
. A value shall be set by subclasses if the files to be encoded
use some specific character encoding.
TextImageWriter.getCharset(javax.imageio.ImageWriteParam)
protected java.util.Locale locale
Locale.US
means that
numbers are expected to use dot as decimal separator. This field is initially
null
, which means that default locale should be used.
TextImageWriter.getDataLocale(javax.imageio.ImageWriteParam)
protected java.lang.String lineSeparator
null
for the system default.
TextImageWriter.getLineSeparator(javax.imageio.ImageWriteParam)
Constructor Detail |
---|
public TextImageWriter.Spi()
TextImageWriter.Spi
. It is up to the subclass to
initialize instance variables in order to provide working versions of all methods.
This constructor provides the following defaults:
ImageWriterSpi.outputTypes
= {File
, URL
, URLConnection
,
Writer
, OutputStream
, ImageOutputStream
, String
}ImageReaderWriterSpi.suffixes
= {"txt"
, "asc"
, "dat"
}
(lowercases and uppercases)
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