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java.lang.Objectcom.imagero.uio.buffer.AbstractBufferManager
com.imagero.uio.buffer.RAFBufferManager
Field Summary | |
protected java.io.RandomAccessFile |
raf
|
Fields inherited from class com.imagero.uio.buffer.AbstractBufferManager |
defaultBufferSize |
Fields inherited from interface com.imagero.uio.buffer.BufferManager |
empty |
Constructor Summary | |
RAFBufferManager(java.io.RandomAccessFile raf)
|
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RAFBufferManager(java.io.RandomAccessFile raf,
long offset)
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RAFBufferManager(java.io.RandomAccessFile raf,
long offset,
long length)
create MutableBuffer for RandomAccessRO (with standard Buffer length of 50k) |
|
RAFBufferManager(java.io.RandomAccessFile raf,
long offset,
long length,
int dsLength)
create MutableBuffer for RandomAccessRO |
Method Summary | |
void |
clear()
clear all buffered data without closing |
void |
close()
Allows to free all possibly used resources |
protected Buffer |
createBuffer(java.io.RandomAccessFile raf,
long offset,
int dsLength)
|
byte[] |
getData(int i)
get data (as byte array) from i'th Buffer |
protected byte[] |
getDataImpl(int i)
read i'th Buffer |
int |
getDataLength(int i)
get length of i'th Buffer |
long |
getDataStart(int i)
get start of i'th Buffer in byte I assume here that length of each Buffer (except last one) equals to dsLength |
int |
getIndex(long pos)
get index of Buffer which contains pos |
long |
getLength()
get length of data |
Methods inherited from class com.imagero.uio.buffer.AbstractBufferManager |
clear, clearImpl, createAccessManager, flush, getCount, getDefaultBufferSize, getEnd, getMaxCache, getStart, setDefaultBufferSize, setDirty, setDirty, setMaxCache |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
protected java.io.RandomAccessFile raf
Constructor Detail |
public RAFBufferManager(java.io.RandomAccessFile raf) throws java.io.IOException
public RAFBufferManager(java.io.RandomAccessFile raf, long offset) throws java.io.IOException
public RAFBufferManager(java.io.RandomAccessFile raf, long offset, long length)
RABufferRO
public RAFBufferManager(java.io.RandomAccessFile raf, long offset, long length, int dsLength)
dsLength
- standard length of one data block of BufferRABufferRO
Method Detail |
protected Buffer createBuffer(java.io.RandomAccessFile raf, long offset, int dsLength)
public byte[] getData(int i) throws java.io.IOException
i
- Buffer index
java.io.IOException
- if i'th Buffer not exists and couldn't be readprotected byte[] getDataImpl(int i) throws java.io.IOException
i
- Buffer index
java.io.IOException
public int getDataLength(int i)
i
- Buffer index
public int getIndex(long pos)
pos
pos
-
public long getLength()
public long getDataStart(int i)
dsLength
i
-
n-1 |
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dataStart(n) = | Σ | getDataLength(i) |
i=0 |
public void close()
BufferManager
public void clear()
BufferManager
clear
in interface BufferManager
clear
in class AbstractBufferManager
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