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The <
code>ImageInputStream</
code> interface unifies streaming and
file-based operations. An abstract base class,
<
code>ImageInputStreamImpl</
code> is provided to simplify writing
a new <
code>ImageInputStream</
code> class. Concrete implementation
classes (<
code>FileImageInputStream</
code>,
<
code>FileCacheImageInputStream</
code>, and
<
code>MemoryCacheImageInputStream</
code>) are provided that allow
input to come from a <
code>File</
code> or <
code>InputStream</
code>
with or without the use of a temporary cache file.
The <
code>ImageOutputStream</
code> interface performs an analogous
function for output. An abstract base class,
<
code>ImageOutputStreamImpl</
code> is provided, along with
concrete implementation classes (<
code>FileImageOutputStream</
code>,
<
code>FileCacheImageOutputStream</
code>, and
<
code>MemoryCacheImageOutputStream</
code>) are provided that allow
output to go to a <
code>File</
code> or <
code>OutputStream</
code> with
or without the use of a temporary cache file.
The <
code>IIOByteBuffer</
code> class provides an alternative way to
perform reads of sequences of bytes that reduces the amount of