Package com.twelvemonkeys.io
Class FileCacheSeekableStream.FileCache
java.lang.Object
com.twelvemonkeys.io.AbstractCachedSeekableStream.StreamCache
com.twelvemonkeys.io.FileCacheSeekableStream.FileCache
- Enclosing class:
FileCacheSeekableStream
static final class FileCacheSeekableStream.FileCache
extends AbstractCachedSeekableStream.StreamCache
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Field Summary
Fields -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescription(package private) void
close()
long
Returns the current cache read/write position.int
read()
Reads a single byte a the current read/write position.int
read
(byte[] pBuffer, int pOffset, int pLength) Writes a series of bytes at the current read/write position.void
seek
(long pPosition) Repositions the current cache read/write position to the given position.void
write
(byte[] pBuffer, int pOffset, int pLength) Writes a series of bytes at the current read/write position.void
write
(int pByte) Writes a single byte at the current read/write position.Methods inherited from class com.twelvemonkeys.io.AbstractCachedSeekableStream.StreamCache
flush
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Field Details
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cacheFile
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Constructor Details
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FileCache
- Throws:
FileNotFoundException
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Method Details
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write
Description copied from class:AbstractCachedSeekableStream.StreamCache
Writes a single byte at the current read/write position. The read/write position will be increased by one.- Specified by:
write
in classAbstractCachedSeekableStream.StreamCache
- Parameters:
pByte
- the byte value to write.- Throws:
IOException
- if an I/O exception occurs in the cache backing mechanism.
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write
Description copied from class:AbstractCachedSeekableStream.StreamCache
Writes a series of bytes at the current read/write position. The read/write position will be increased bypLength
.This implementation invokes
AbstractCachedSeekableStream.StreamCache.write(int)
pLength
times. Subclasses may override this method for performance.- Overrides:
write
in classAbstractCachedSeekableStream.StreamCache
- Parameters:
pBuffer
- the bytes to write.pOffset
- the starting offset into the buffer.pLength
- the number of bytes to write from the buffer.- Throws:
IOException
- if an I/O exception occurs in the cache backing mechanism.
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read
Description copied from class:AbstractCachedSeekableStream.StreamCache
Reads a single byte a the current read/write position. The read/write position will be increased by one.- Specified by:
read
in classAbstractCachedSeekableStream.StreamCache
- Returns:
- the value read, or
-1
to indicate EOF. - Throws:
IOException
- if an I/O exception occurs in the cache backing mechanism.
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read
Description copied from class:AbstractCachedSeekableStream.StreamCache
Writes a series of bytes at the current read/write position. The read/write position will be increased bypLength
.This implementation invokes
AbstractCachedSeekableStream.StreamCache.read()
pLength
times. Subclasses may override this method for performance.- Overrides:
read
in classAbstractCachedSeekableStream.StreamCache
- Parameters:
pBuffer
- the bytes to writepOffset
- the starting offset into the buffer.pLength
- the number of bytes to write from the buffer.- Returns:
- the number of bytes read, or
-1
to indicate EOF. - Throws:
IOException
- if an I/O exception occurs in the cache backing mechanism.
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seek
Description copied from class:AbstractCachedSeekableStream.StreamCache
Repositions the current cache read/write position to the given position.- Specified by:
seek
in classAbstractCachedSeekableStream.StreamCache
- Parameters:
pPosition
- the new read/write position- Throws:
IOException
- if an I/O exception occurs in the cache backing mechanism.
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getPosition
Description copied from class:AbstractCachedSeekableStream.StreamCache
Returns the current cache read/write position.- Specified by:
getPosition
in classAbstractCachedSeekableStream.StreamCache
- Returns:
- the current cache read/write postion.
- Throws:
IOException
- if the position can't be determined because of a problem in the cache backing mechanism.
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close
- Specified by:
close
in classAbstractCachedSeekableStream.StreamCache
- Throws:
IOException
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