org.apache.xerces.impl
Class XMLEntityManager.RewindableInputStream
InputStream
org.apache.xerces.impl.XMLEntityManager.RewindableInputStream
- XMLEntityManager
protected final class XMLEntityManager.RewindableInputStream
extends InputStream
This class wraps the byte inputstreams we're presented with.
We need it because java.io.InputStreams don't provide
functionality to reread processed bytes, and they have a habit
of reading more than one character when you call their read()
methods. This means that, once we discover the true (declared)
encoding of a document, we can neither backtrack to read the
whole doc again nor start reading where we are with a new
reader.
This class allows rewinding an inputStream by allowing a mark
to be set, and the stream reset to that position. The
class assumes that it needs to read one character per
invocation when it's read() method is inovked, but uses the
underlying InputStream's read(char[], offset length) method--it
won't buffer data read this way!
- Neil Graham, IBM
- Glenn Marcy, IBM
RewindableInputStream
public RewindableInputStream(InputStream is)
available
public int available()
throws IOException
close
public void close()
throws IOException
mark
public void mark(int howMuch)
markSupported
public boolean markSupported()
read
public int read()
throws IOException
read
public int read(byte[] b,
int off,
int len)
throws IOException
rewind
public void rewind()
setStartOffset
public void setStartOffset(int offset)
skip
public long skip(long n)
throws IOException
Copyright B) 1999-2006 The Apache Software Foundation. All Rights Reserved.