| java.lang.Object
 javax.media.jai.tilecodec.TileCodecDescriptorImpl
javax.media.jai.tilecodec.GZIPTileCodecDescriptor
| GZIPTileCodecDescriptor | | public class GZIPTileCodecDescriptor extends TileCodecDescriptorImpl (Code) | | This class is the descriptor for the "GZIP" tile codec. This codec
scheme uses "gzip" as the method of compressing tile data. This is a
lossless tile codec. The format name for the gzip tile codec is "gzip".
The encoded stream contains the SampleModel and the tile's
upper left corner position, thus the includesSampleModelInfo()
and includesLocationInfo() methods in this descriptor return
true.
The "gzip" codec scheme does not support any parameters.
Resource List
| Name | Value |
|---|
| Vendor | com.sun.media.jai |
| Description | A descriptor to describe the lossless "gzip"
codec scheme. |
| DocURL | http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/tilecodec/GZIPTileCodecDescriptor.html |
| Version | 1.2 |
Parameter List
| Name | Class Type |
Default Value |
|---|
since:
JAI 1.1 |
| GZIPTileCodecDescriptor | | public GZIPTileCodecDescriptor()(Code) | | Creates a GZIPTileCodecDescriptor
|
| getCompatibleParameters | | public TileCodecParameterList getCompatibleParameters(String modeName, TileCodecParameterList otherParamList)(Code) | | Returns a TileCodecParameterList valid for the
specified modeName and compatible with the supplied
TileCodecParameterList. For example, given a
TileCodecParameterList used to encode a tile with
the modeName being specified as "tileDecoder", this method will
return a TileCodecParameterList
sufficient to decode that same tile. For the gzip tile codec,
no parameters are used. So null will be returned for any valid
modeName specified.
Parameters:
modeName - The registry mode to return a valid parameter list for.
Parameters:
otherParamList - The parameter list for which a compatible parameter list for the complementary modeName isto be found.
throws:
IllegalArgumentException - if modeName is null.
throws:
IllegalArgumentException - if modeName is notone of the modes valid for this descriptor, i.e those returnedfrom the getSupportedNames() method. |
| getDefaultParameters | | public TileCodecParameterList getDefaultParameters(String modeName)(Code) | | Returns the default parameters for the specified modeName as an
instance of the TileCodecParameterList. For the
gzip tile codec, no parameters are used. So null will be
returned for any valid modeName specified.
Parameters:
modeName - The registry mode to return a valid parameter list for.
throws:
IllegalArgumentException - if modeName is null.
throws:
IllegalArgumentException - if modeName is notone of the modes valid for this descriptor, i.e those returnedfrom the getSupportedNames() method. |
| getDefaultParameters | | public TileCodecParameterList getDefaultParameters(String modeName, SampleModel sm)(Code) | | Returns the default parameters for the specified modeName as an
instance of the TileCodecParameterList, adding a
"sampleModel" parameter with the specified value to the parameter
list. For the gzip tile codec, no parameters are used. So null will be
returned for any valid modeName specified.
This method should be used when includesSampleModelInfo()
returns false. If includesSampleModelInfo() returns true, the
supplied SampleModel is ignored.
If a parameter named "sampleModel" exists in the default
parameter list, the supplied SampleModel will override the value
associated with this default parameter.
Parameters:
modeName - The registry mode to return a valid parameter list for.
Parameters:
sm - The SampleModel used to create the default decoding parameter list.
throws:
IllegalArgumentException - if modeName is null.
throws:
IllegalArgumentException - if modeName is notone of the modes valid for this descriptor, i.e those returnedfrom the getSupportedNames() method. |
| getParameterListDescriptor | | public ParameterListDescriptor getParameterListDescriptor(String modeName)(Code) | | Returns the ParameterListDescriptor that describes
the associated parameters (NOT sources). This method returns
null if there are no parameters for the specified modeName.
If the specified modeName supports parameters but the
implementing class does not have parameters, then this method
returns a non-null ParameterListDescriptor whose
getNumParameters() returns 0.
Parameters:
modeName - The mode to get the ParameterListDescriptor for.
throws:
IllegalArgumentException - if modeName is null.
throws:
IllegalArgumentException - if modeName is null.
throws:
IllegalArgumentException - if modeName is notone of the modes valid for this descriptor, i.e those returnedfrom the getSupportedNames() method. |
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