public class BlobInputStream
extends java.io.InputStream
| Constructor and Description |
|---|
BlobInputStream(LargeObject lo) |
BlobInputStream(LargeObject lo,
int bsize) |
| Modifier and Type | Method and Description |
|---|---|
void |
close()
Closes this input stream and releases any system resources associated
with the stream.
|
void |
mark(int readlimit)
Marks the current position in this input stream.
|
boolean |
markSupported()
Tests if this input stream supports the
mark and
reset methods. |
int |
read()
The minimum required to implement input stream
|
void |
reset()
Repositions this stream to the position at the time the
mark method was last called on this input stream. |
public BlobInputStream(LargeObject lo)
lo - LargeObject to read frompublic BlobInputStream(LargeObject lo, int bsize)
lo - LargeObject to read frombsize - buffer sizepublic int read()
throws java.io.IOException
read in class java.io.InputStreamjava.io.IOExceptionpublic void close()
throws java.io.IOException
The close method of InputStream does
nothing.
close in interface java.io.Closeableclose in interface java.lang.AutoCloseableclose in class java.io.InputStreamjava.io.IOException - if an I/O error occurs.public void mark(int readlimit)
reset method repositions this stream at the last marked
position so that subsequent reads re-read the same bytes.
The readlimit arguments tells this input stream to
allow that many bytes to be read before the mark position gets
invalidated.
The general contract of mark is that, if the method
markSupported returns true, the stream somehow
remembers all the bytes read after the call to mark and
stands ready to supply those same bytes again if and whenever the method
reset is called. However, the stream is not required to
remember any data at all if more than readlimit bytes are
read from the stream before reset is called.
Marking a closed stream should not have any effect on the stream.
mark in class java.io.InputStreamreadlimit - the maximum limit of bytes that can be read before
the mark position becomes invalid.InputStream.reset()public void reset()
throws java.io.IOException
mark method was last called on this input stream.
NB: If mark is not called we move to the begining.reset in class java.io.InputStreamjava.io.IOExceptionInputStream.mark(int),
IOExceptionpublic boolean markSupported()
mark and
reset methods. The markSupported method of
InputStream returns false.markSupported in class java.io.InputStreamtrue if this true type supports the mark and reset
method; false otherwise.InputStream.mark(int),
InputStream.reset()