Java Foundation Classes in a Nutshell

CHAPTER 19

Thejava.awt.image.renderable Package

The java.awt.image.renderable package contains classes and interfaces used by the

Java Advanced Imaging (JAI) standard extension (javax.jai.*). In general, these

classes and interfaces are not of interest to Java 2D programs, but the package is

part of the core Java platform so that the JAI can be tightly coupled to the core

image-pr ocessing featur es. Only image-processing applications that use the JAI

ever need to use the classes and interfaces in this package. Figure 19-1 shows the

class hierarchy of this package, which is new in Java 1.2.

extends

implements

INTERFACE

KEY

CLASS

RenderableImageOp

java.awt.image.renderable

java.lang

Object

ParameterBlock

RenderableImage

Runnable

Cloneable

java.io

java.awt.image

RenderableImageProducer

RenderContext

RenderedImageFactory

ContextualRenderedImageFactory

Serializable

ImageProducer

Figur e 19−1: The java.awt.image.r enderable package

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ContextualRenderedImageFactor y Ja va 1.2

java.awt.image.renderable

This interface is implemented by classes that, given a RenderContext and a ParameterBlock

of arguments, can produce a java.awt.image.RenderedImage. Implementations of this inter-

face are used to perfor mrendering-independent image filtering by RenderableImageOp.

public abstract interface ContextualRenderedImageF ...