javax.media.jai.tilecodec
Class TileCodecDescriptorImpl
java.lang.Object
|
+--javax.media.jai.tilecodec.TileCodecDescriptorImpl
- All Implemented Interfaces:
- RegistryElementDescriptor, TileCodecDescriptor
- Direct Known Subclasses:
- GZIPTileCodecDescriptor, JPEGTileCodecDescriptor, RawTileCodecDescriptor
- public abstract class TileCodecDescriptorImpl
- extends Object
- implements TileCodecDescriptor
An abstract class that implements the TileCodecDescriptor
interface and is suitable for subclassing. This class provides default
implementations for some of the methods from
TileCodecDescriptor. Subclasses should override these methods
if they do not wish to retain the default implementation.
All Strings are treated in a case-retentive and
case-insensitive manner.
- Since:
- JAI 1.1
|
Constructor Summary |
TileCodecDescriptorImpl(String formatName,
boolean includesSampleModelInfo,
boolean includesLocationInfo)
Creates a TileCodecDescriptorImpl with the given
format name and booleans to specify whether layout
information is included in the encoded stream. |
|
Method Summary |
boolean |
arePropertiesSupported()
Whether this descriptor supports properties. |
String |
getName()
Returns the name of the format. |
PropertyGenerator[] |
getPropertyGenerators(String modeName)
Returns an array of PropertyGenerators implementing
the property inheritance for this operation. |
String[] |
getSupportedModes()
Returns the registry modes supported by this descriptor. |
boolean |
includesLocationInfo()
Returns true if the format encodes in the data stream the location of
the Raster with respect to its enclosing image. |
boolean |
includesSampleModelInfo()
Returns true if the format encodes layout information generally
specified via the SampleModel in the encoded data stream. |
boolean |
isModeSupported(String registryModeName)
This method is implemented to return true if the specified
registryModeName is either "tileDecoder" or "tileEncoder". |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
TileCodecDescriptorImpl
public TileCodecDescriptorImpl(String formatName,
boolean includesSampleModelInfo,
boolean includesLocationInfo)
- Creates a
TileCodecDescriptorImpl with the given
format name and booleans to specify whether layout
information is included in the encoded stream.
- Parameters:
formatName - The name of the format. This is also
the name under which this descriptor
will be registered under in the
OperationRegistry.includesSampleModelInfo - Whether the format encodes the tile's
SampleModel or equivalent
information into the encoded stream.includesLocationInfo - Whether the format encodes the tile's
upper left corner position or equivalent
information into the encoded stream.- Throws:
IllegalArgumentException - if formatName is null.
getName
public String getName()
- Returns the name of the format.
- Specified by:
getName in interface RegistryElementDescriptor
getSupportedModes
public String[] getSupportedModes()
- Returns the registry modes supported by this descriptor. The
default implementation of this method in this class returns a
String array containing the "tileDecoder" and
"tileEncoder" strings. If the subclass does not support any of
these modes, it should override this method to return the names of
those modes that it supports.
- Specified by:
getSupportedModes in interface RegistryElementDescriptor
- See Also:
RegistryMode
isModeSupported
public boolean isModeSupported(String registryModeName)
- This method is implemented to return true if the specified
registryModeName is either "tileDecoder" or "tileEncoder". If
the subclass doesn't support any one of these modes, it should
override this method to return true only for the supported mode(s).
- Specified by:
isModeSupported in interface RegistryElementDescriptor
- Parameters:
registryModeName - The name of the registry mode to check
support for.- Throws:
IllegalArgumentException - if registryModeName is null.
arePropertiesSupported
public boolean arePropertiesSupported()
- Whether this descriptor supports properties.
- Specified by:
arePropertiesSupported in interface RegistryElementDescriptor
- Returns:
- true, if the implementation of this descriptor supports
properties. false otherwise. Since tile codecs do not support
properties, so this default implementation returns false.
- See Also:
PropertyGenerator
getPropertyGenerators
public PropertyGenerator[] getPropertyGenerators(String modeName)
- Returns an array of
PropertyGenerators implementing
the property inheritance for this operation. Since neither
TileEncoder or TileDecoder supports
properties, the default implementation throws an
UnsupportedOperationException. Subclasses should
override this method if they wish to produce inherited properties.
- Specified by:
getPropertyGenerators in interface RegistryElementDescriptor
- Throws:
IllegalArgumentException - if modeName is null.UnsupportedOperationException - if
arePropertiesSupported() returns false
includesSampleModelInfo
public boolean includesSampleModelInfo()
- Returns true if the format encodes layout information generally
specified via the
SampleModel in the encoded data stream.
- Specified by:
includesSampleModelInfo in interface TileCodecDescriptor
includesLocationInfo
public boolean includesLocationInfo()
- Returns true if the format encodes in the data stream the location of
the
Raster with respect to its enclosing image.
- Specified by:
includesLocationInfo in interface TileCodecDescriptor