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Java Source Code / Java Documentation » 6.0 JDK Modules » Java Advanced Imaging » com.sun.media.jai.tilecodec 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   com.sun.media.jai.tilecodec.RawTileDecoderFactory

RawTileDecoderFactory
public class RawTileDecoderFactory implements TileDecoderFactory(Code)
A factory for creating RawTileDecoders.

This class stipulates that the capabilities of the TileDecoder be specified by implementing the getDecodingCapability() method.
See Also:   javax.media.jai.remote.NegotiableCapability





Method Summary
public  TileDecodercreateDecoder(InputStream input, TileCodecParameterList param)
     Creates a RawTileDecoder capable of decoding the encoded data from the given InputStream using the specified TileCodecParameterList containing the decoding parameters to be used.

This method can return null if the TileDecoder is not capable of producing output for the given set of parameters. For example, if a TileDecoder is only capable of dealing with a jpeg quality factor of 0.5, and the associated TileCodecParameterList specifies a quality factor of 0.75, null should be returned.

It is recommended that the data in the supplied InputStream not be used as a factor in determining whether this InputStream can be successfully decoded, unless the supplied InputStream is known to be rewindable (i.e.

public  NegotiableCapabilitygetDecodeCapability()
     Returns the capabilities of this TileDecoder as a NegotiableCapability.



Method Detail
createDecoder
public TileDecoder createDecoder(InputStream input, TileCodecParameterList param)(Code)
Creates a RawTileDecoder capable of decoding the encoded data from the given InputStream using the specified TileCodecParameterList containing the decoding parameters to be used.

This method can return null if the TileDecoder is not capable of producing output for the given set of parameters. For example, if a TileDecoder is only capable of dealing with a jpeg quality factor of 0.5, and the associated TileCodecParameterList specifies a quality factor of 0.75, null should be returned.

It is recommended that the data in the supplied InputStream not be used as a factor in determining whether this InputStream can be successfully decoded, unless the supplied InputStream is known to be rewindable (i.e. its markSupported() method returns true or it has additional functionality that allows backward seeking). It is required that the InputStream contain the same data on returning from this method as before this method was called. In other words, the InputStream should only be used as a discriminator if it can be rewound to its starting position before returning from this method. Note that wrapping the incoming InputStream in a PushbackInputStream and then rewinding the PushbackInputStream before returning does not rewind the wrapped InputStream.

If the supplied TileCodecParameterList is null, a default TileCodecParameterList from the TileCodecDescriptor will be used to create the decoder.

Exceptions thrown by the TileDecoder will be caught by this method and will not be propagated.
Parameters:
  input - The InputStream containing the encoded datato decode.
Parameters:
  param - The parameters to be be used in the decoding process.
throws:
  IllegalArgumentException - if input is null.




getDecodeCapability
public NegotiableCapability getDecodeCapability()(Code)
Returns the capabilities of this TileDecoder as a NegotiableCapability.



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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