Class ImageEncoderImpl

java.lang.Object
org.apache.xmlgraphics.image.codec.util.ImageEncoderImpl
All Implemented Interfaces:
ImageEncoder
Direct Known Subclasses:
PNGImageEncoder, TIFFImageEncoder
public abstract class ImageEncoderImpl extends Object implements ImageEncoder
A partial implementation of the ImageEncoder interface useful for subclassing.

This class is not a committed part of the JAI API. It may be removed or changed in future releases of JAI.

  • Field Details

    • output

      protected OutputStream output
      The OutputStream associcted with this ImageEncoder.

    • param

      protected ImageEncodeParam param
      The ImageEncodeParam object associcted with this ImageEncoder.

  • Constructor Details

    • ImageEncoderImpl

      public ImageEncoderImpl(OutputStream output, ImageEncodeParam param)
      Constructs an ImageEncoderImpl with a given OutputStream and ImageEncoderParam instance.

  • Method Details

    • getParam

      public ImageEncodeParam getParam()
      Returns the current parameters as an instance of the ImageEncodeParam interface. Concrete implementations of this interface will return corresponding concrete implementations of the ImageEncodeParam interface. For example, a JPEGImageEncoder will return an instance of JPEGEncodeParam.
      Specified by:
      getParam in interface ImageEncoder

    • setParam

      public void setParam(ImageEncodeParam param)
      Sets the current parameters to an instance of the ImageEncodeParam interface. Concrete implementations of ImageEncoder may throw a RuntimeException if the params argument is not an instance of the appropriate subclass or subinterface. For example, a JPEGImageEncoder will expect param to be an instance of JPEGEncodeParam.
      Specified by:
      setParam in interface ImageEncoder

    • getOutputStream

      public OutputStream getOutputStream()
      Returns the OutputStream associated with this ImageEncoder.
      Specified by:
      getOutputStream in interface ImageEncoder

    • encode

      public void encode(Raster ras, ColorModel cm) throws IOException
      Encodes a Raster with a given ColorModel and writes the output to the OutputStream associated with this ImageEncoder.
      Specified by:
      encode in interface ImageEncoder
      Throws:
      IOException

    • encode

      public abstract void encode(RenderedImage im) throws IOException
      Encodes a RenderedImage and writes the output to the OutputStream associated with this ImageEncoder.
      Specified by:
      encode in interface ImageEncoder
      Throws:
      IOException