com.itextpdf.kernel.pdf

Class PdfReader.ReusableRandomAccessSource

java.lang.Object

com.itextpdf.kernel.pdf.PdfReader.ReusableRandomAccessSource

All Implemented Interfaces:

IRandomAccessSource

Enclosing class:

PdfReader

protected static class PdfReader.ReusableRandomAccessSource
extends Object
implements IRandomAccessSource

Constructor Summary

Constructors

Constructor and Description
ReusableRandomAccessSource(ByteBuffer buffer)

Method Summary

Modifier and Type	Method and Description
void	close() Closes this source.
int	get(long offset) Gets a byte at the specified position
int	get(long offset, byte[] bytes, int off, int len) Read an array of bytes of specified length from the specified position of source to the buffer applying the offset.
long	length() Gets the length of the source

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ReusableRandomAccessSource

public ReusableRandomAccessSource(ByteBuffer buffer)

Method Detail

get

public int get(long offset)

Description copied from interface: IRandomAccessSource

Gets a byte at the specified position

Specified by:

get in interface IRandomAccessSource

Parameters:

offset - byte position

Returns:

the byte, or -1 if EOF is reached

get

public int get(long offset,
               byte[] bytes,
               int off,
               int len)

Description copied from interface: IRandomAccessSource

Read an array of bytes of specified length from the specified position of source to the buffer applying the offset. If the number of bytes requested cannot be read, all the possible bytes will be read to the buffer, and the number of actually read bytes will be returned.

Specified by:

get in interface IRandomAccessSource

Parameters:

offset - the position in the RandomAccessSource to read from

bytes - output buffer

off - offset into the output buffer where results will be placed

len - the number of bytes to read

Returns:

the number of bytes actually read, or -1 if the file is at EOF

length

public long length()

Description copied from interface: IRandomAccessSource

Gets the length of the source

Specified by:

length in interface IRandomAccessSource

Returns:

the length of this source

close

public void close()
           throws IOException

Description copied from interface: IRandomAccessSource

Closes this source. The underlying data structure or source (if any) will also be closed

Specified by:

close in interface IRandomAccessSource

Throws:

IOException - in case of any reading error.