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java.lang.Object com.itextpdf.text.io.FileChannelRandomAccessSource
public class FileChannelRandomAccessSource
A RandomAccessSource that is based on an underlying FileChannel
. The entire channel will be mapped into memory for efficient reads.
Constructor Summary | |
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FileChannelRandomAccessSource(FileChannel channel)
Constructs a new FileChannelRandomAccessSource based on the specified FileChannel. |
Method Summary | |
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void |
close()
Closes this source. Cleans the mapped bytebuffers and closes the channel |
int |
get(long position)
Gets a byte at the specified position |
int |
get(long position,
byte[] bytes,
int off,
int len)
Gets an array at the specified position. |
long |
length()
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Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public FileChannelRandomAccessSource(FileChannel channel) throws IOException
FileChannelRandomAccessSource
based on the specified FileChannel. The entire source channel will be mapped into memory.
channel
- the channel to use as the backing store
IOException
- if the channel cannot be opened or mappedMethod Detail |
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public void close() throws IOException
close
in interface RandomAccessSource
IOException
public int get(long position) throws IOException
get
in interface RandomAccessSource
IOException
public int get(long position, byte[] bytes, int off, int len) throws IOException
get
in interface RandomAccessSource
position
- the position in the RandomAccessSource to read frombytes
- output bufferoff
- offset into the output buffer where results will be placedlen
- the number of bytes to read
IOException
public long length()
length
in interface RandomAccessSource
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