javax.imageio.stream.MemoryCacheImageOutputStream
An implementation of ImageOutputStream that writes its output to a regular OutputStream. A memory buffer is used to cache at least the data between the discard position and the current write position. The only constructor takes an OutputStream, so this class may not be used for read/modify/write operations. Reading can occur only on parts of the stream that have already been written to the cache and not yet flushed.
An implementation of ImageOutputStream that writes its output to a regular OutputStream. A memory buffer is used to cache at least the data between the discard position and the current write position. The only constructor takes an OutputStream, so this class may not be used for read/modify/write operations. Reading can occur only on parts of the stream that have already been written to the cache and not yet flushed.
->memory-cache-image-output-streamclj
(->memory-cache-image-output-stream stream)Constructor.
Constructs a MemoryCacheImageOutputStream that will write to a given OutputStream.
stream - an OutputStream to write to. - java.io.OutputStream
throws: java.lang.IllegalArgumentException - if stream is null.
Constructor. Constructs a MemoryCacheImageOutputStream that will write to a given OutputStream. stream - an OutputStream to write to. - `java.io.OutputStream` throws: java.lang.IllegalArgumentException - if stream is null.
cached-file?clj
(cached-file? this)Returns false since this ImageOutputStream does not maintain a file cache.
returns: false. - boolean
Returns false since this ImageOutputStream does not maintain a file cache. returns: false. - `boolean`
cached-memory?clj
(cached-memory? this)Returns true since this ImageOutputStream maintains a main memory cache.
returns: true. - boolean
Returns true since this ImageOutputStream maintains a main memory cache. returns: true. - `boolean`
cached?clj
(cached? this)Returns true since this ImageOutputStream caches data in order to allow seeking backwards.
returns: true. - boolean
Returns true since this ImageOutputStream caches data in order to allow seeking backwards. returns: true. - `boolean`
closeclj
(close this)Closes this MemoryCacheImageOutputStream. All pending data is flushed to the output, and the cache is released. The destination OutputStream is not closed.
throws: java.io.IOException - if an I/O error occurs.
Closes this MemoryCacheImageOutputStream. All pending data is flushed to the output, and the cache is released. The destination OutputStream is not closed. throws: java.io.IOException - if an I/O error occurs.
flush-beforeclj
(flush-before this pos)Description copied from interface: ImageInputStream
pos - a long containing the length of the stream prefix that may be flushed. - long
throws: java.io.IOException - if an I/O error occurs.
Description copied from interface: ImageInputStream pos - a long containing the length of the stream prefix that may be flushed. - `long` throws: java.io.IOException - if an I/O error occurs.
lengthclj
(length this)Description copied from class: ImageInputStreamImpl
returns: -1L to indicate unknown length. - long
Description copied from class: ImageInputStreamImpl returns: -1L to indicate unknown length. - `long`
readclj
(read this)(read this b off len)Description copied from class: ImageInputStreamImpl
b - an array of bytes to be written to. - byte[]
off - the starting position within b to write to. - int
len - the maximum number of bytes to read. - int
returns: the number of bytes actually read, or -1
to indicate EOF. - int
throws: java.io.IOException - if an I/O error occurs.
Description copied from class: ImageInputStreamImpl b - an array of bytes to be written to. - `byte[]` off - the starting position within b to write to. - `int` len - the maximum number of bytes to read. - `int` returns: the number of bytes actually read, or -1 to indicate EOF. - `int` throws: java.io.IOException - if an I/O error occurs.
writeclj
(write this b)(write this b off len)Description copied from interface: ImageOutputStream
b - an array of bytes to be written. - byte[]
off - the start offset in the data. - int
len - the number of bytes to write. - int
throws: java.io.IOException - if an I/O error occurs.
Description copied from interface: ImageOutputStream b - an array of bytes to be written. - `byte[]` off - the start offset in the data. - `int` len - the number of bytes to write. - `int` throws: java.io.IOException - if an I/O error occurs.
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