Java 类javax.imageio.ImageTranscoder 实例源码

/**
 * Returns an <code>Iterator</code> containing all currently registered <code>ImageTranscoder</code>s that
 * claim to be able to transcode between the metadata of the given <code>ImageReader</code> and
 * <code>ImageWriter</code>.
 * 
 * @param reader
 *            an <code>ImageReader</code>.
 * @param writer
 *            an <code>ImageWriter</code>.
 * 
 * @return an <code>Iterator</code> containing <code>ImageTranscoder</code>s.
 * 
 * @exception IllegalArgumentException
 *                if <code>reader</code> or <code>writer</code> is <code>null</code>.
 */
public static Iterator<ImageTranscoder> getImageTranscoders(ImageReader reader, ImageWriter writer) {
    if (reader == null) {
        throw new IllegalArgumentException("reader == null!");
    }
    if (writer == null) {
        throw new IllegalArgumentException("writer == null!");
    }
    ImageReaderSpi readerSpi = reader.getOriginatingProvider();
    ImageWriterSpi writerSpi = writer.getOriginatingProvider();
    ServiceRegistry.Filter filter = new TranscoderFilter(readerSpi, writerSpi);

    Iterator iter;
    // Ensure category is present
    try {
        iter = theRegistry.getServiceProviders(ImageTranscoderSpi.class, filter, true);
    } catch (IllegalArgumentException e) {
        return new HashSet().iterator();
    }
    return new ImageTranscoderIterator(iter);
}

/**
 * Returns an instance of the <code>ImageTranscoder</code>
 * implementation associated with this service provider.
 *
 * @return an <code>ImageTranscoder</code> instance.
 */
public abstract ImageTranscoder createTranscoderInstance();

/**
 * Returns an instance of the <code>ImageTranscoder</code>
 * implementation associated with this service provider.
 *
 * @return an <code>ImageTranscoder</code> instance.
 */
public abstract ImageTranscoder createTranscoderInstance();

/**
 * Returns an instance of the {@code ImageTranscoder}
 * implementation associated with this service provider.
 *
 * @return an {@code ImageTranscoder} instance.
 */
public abstract ImageTranscoder createTranscoderInstance();

/**
 * Returns an instance of the {@code ImageTranscoder}
 * implementation associated with this service provider.
 *
 * @return an {@code ImageTranscoder} instance.
 */
public abstract ImageTranscoder createTranscoderInstance();

/**
 * Returns an instance of the <code>ImageTranscoder</code>
 * implementation associated with this service provider.
 *
 * @return an <code>ImageTranscoder</code> instance.
 */
public abstract ImageTranscoder createTranscoderInstance();

/**
 * Returns an instance of the <code>ImageTranscoder</code>
 * implementation associated with this service provider.
 *
 * @return an <code>ImageTranscoder</code> instance.
 */
public abstract ImageTranscoder createTranscoderInstance();

/**
 * Returns an instance of the <code>ImageTranscoder</code>
 * implementation associated with this service provider.
 *
 * @return an <code>ImageTranscoder</code> instance.
 */
public abstract ImageTranscoder createTranscoderInstance();

/**
 * Returns an instance of the <code>ImageTranscoder</code>
 * implementation associated with this service provider.
 *
 * @return an <code>ImageTranscoder</code> instance.
 */
public abstract ImageTranscoder createTranscoderInstance();

/**
 * Returns an instance of the <code>ImageTranscoder</code>
 * implementation associated with this service provider.
 *
 * @return an <code>ImageTranscoder</code> instance.
 */
public abstract ImageTranscoder createTranscoderInstance();

/**
 * Returns an instance of the <code>ImageTranscoder</code>
 * implementation associated with this service provider.
 *
 * @return an <code>ImageTranscoder</code> instance.
 */
public abstract ImageTranscoder createTranscoderInstance();

/**
 * Returns an instance of the <code>ImageTranscoder</code>
 * implementation associated with this service provider.
 *
 * @return an <code>ImageTranscoder</code> instance.
 */
public abstract ImageTranscoder createTranscoderInstance();

/**
 * Returns an instance of the <code>ImageTranscoder</code>
 * implementation associated with this service provider.
 *
 * @return an <code>ImageTranscoder</code> instance.
 */
public abstract ImageTranscoder createTranscoderInstance();

/**
 * Returns an instance of the <code>ImageTranscoder</code>
 * implementation associated with this service provider.
 *
 * @return an <code>ImageTranscoder</code> instance.
 */
public abstract ImageTranscoder createTranscoderInstance();

/**
 * Returns an instance of the <code>ImageTranscoder</code>
 * implementation associated with this service provider.
 *
 * @return an <code>ImageTranscoder</code> instance.
 */
public abstract ImageTranscoder createTranscoderInstance();

public abstract ImageTranscoder createTranscoderInstance();

public abstract ImageTranscoder createTranscoderInstance();

public abstract ImageTranscoder createTranscoderInstance();

public abstract ImageTranscoder createTranscoderInstance();

public abstract ImageTranscoder createTranscoderInstance();

public abstract ImageTranscoder createTranscoderInstance();

public abstract ImageTranscoder createTranscoderInstance();