How to use

setParameter

method

in

javax.media.jai.ParameterList

/** Set the parameter value as an integer. */
public void setValue(final int value) throws InvalidParameterValueException {
  final String name = getName();
  final Class type = getType();
  try {
    if (type.equals(Short.class)) {
      parameters.setParameter(name, (short) value);
      return;
    }
    if (type.equals(Byte.class)) {
      parameters.setParameter(name, (byte) value);
      return;
    }
    parameters.setParameter(name, value);
  } catch (ClassCastException exception) {
    throw invalidType(exception);
  }
}

/** Set the parameter value as a floating point. */
public void setValue(final double value) throws InvalidParameterValueException {
  final String name = getName();
  final Class type = getType();
  try {
    if (type.equals(Float.class)) {
      parameters.setParameter(name, (float) value);
      return;
    }
    if (type.equals(Long.class)) {
      parameters.setParameter(name, (long) value);
      return;
    }
    if (type.equals(Integer.class)) {
      parameters.setParameter(name, (int) value);
      return;
    }
    if (type.equals(Short.class)) {
      parameters.setParameter(name, (short) value);
      return;
    }
    if (type.equals(Byte.class)) {
      parameters.setParameter(name, (byte) value);
      return;
    }
    parameters.setParameter(name, value);
  } catch (ClassCastException exception) {
    throw invalidType(exception);
  }
}

/**
 * Loads an image using the provided file name and the {@linkplain #getRenderingHints current
 * hints}, which are used to control caching and layout.
 *
 * @param source Filename of the source image to read.
 * @param imageChoice Image index in multipage images.
 * @param readMatadata If {@code true}, metadata will be read.
 */
public final void load(final String source, final int imageChoice, final boolean readMetadata) {
  final ParameterBlockJAI pbj = new ParameterBlockJAI("ImageRead");
  pbj.setParameter("Input", source)
      .setParameter("ImageChoice", Integer.valueOf(imageChoice))
      .setParameter("ReadMetadata", Boolean.valueOf(readMetadata))
      .setParameter("VerifyInput", Boolean.TRUE);
  image = JAI.create("ImageRead", pbj, getRenderingHints());
}

/** Set the parameter value as a boolean. */
public void setValue(final boolean value) throws InvalidParameterValueException {
  final String name = getName();
  try {
    parameters.setParameter(name, value);
  } catch (ClassCastException exception) {
    throw invalidType(exception);
  }
}

/**
 * Set the parameter value as an object. The object type is typically a {@link Double}, {@link
 * Integer}, {@link Boolean}, {@link String}, {@link URI}, {@code double[]} or {@code int[]}.
 */
public void setValue(final Object value) throws InvalidParameterValueException {
  final String name = getName();
  try {
    parameters.setParameter(name, value);
  } catch (ClassCastException exception) {
    throw invalidType(exception);
  }
}

assertSame(pl, pl.setParameter("xPeriod", 2));
assertSame(pl, pl.setParameter("yPeriod", 2));
assertEquals(2, pl.getIntParameter("xPeriod"));
assertEquals(2, pl.getIntParameter("yPeriod"));

/**
 * Loads an image using the provided file name and the
 * {@linkplain #getRenderingHints current hints}, which are used to control caching and layout.
 *
 * @param source       Filename of the source image to read.
 * @param imageChoice  Image index in multipage images.
 * @param readMatadata If {@code true}, metadata will be read.
 */
public final void load(final String source, final int imageChoice, final boolean readMetadata) {
  final ParameterBlockJAI pbj = new ParameterBlockJAI("ImageRead");
  pbj.setParameter("Input",        source)
    .setParameter("ImageChoice",  Integer.valueOf(imageChoice))
    .setParameter("ReadMetadata", Boolean.valueOf(readMetadata))
    .setParameter("VerifyInput",  Boolean.TRUE);
  image = JAI.create("ImageRead", pbj, getRenderingHints());
}

/**
 * Loads an image using the provided file name and the
 * {@linkplain #getRenderingHints current hints}, which are used to control caching and layout.
 *
 * @param source
 *            Filename of the source image to read.
 * @param imageChoice
 *            Image index in multipage images.
 * @param readMatadata
 *            If {@code true}, metadata will be read.
 */
public final void load(final String source, final int imageChoice, final boolean readMetadata) {
  final ParameterBlockJAI pbj = new ParameterBlockJAI("ImageRead");
  pbj.setParameter("Input",        source)
    .setParameter("ImageChoice",  new Integer(imageChoice))
    .setParameter("ReadMetadata", new Boolean(readMetadata))
    .setParameter("VerifyInput",  Boolean.TRUE);
  image = JAI.create("ImageRead", pbj, getRenderingHints());
}

final ParameterValue before = values.parameter("constants");
if ((i % 5) == 0) {
  values.parameters.setParameter("constants", new double[] {i});
} else {
  values.parameter("constants").setValue(new double[] {i});

block.setParameter("Mask1", divide(mask1, factor*scaleMask1));
block.setParameter("Mask2", divide(mask2, factor*scaleMask2));

block.setParameter("Mask1", divide(mask1, factor*scaleMask1));
block.setParameter("Mask2", divide(mask2, factor*scaleMask2));