in - A Reader object providing the underlying stream.
Must not be null.
Method Detail
read
public final int read()
throws java.io.IOException
Returns the next character in the filtered stream. One line is read
from the original input, and the prefix added. The resulting
line is then used until it ends, at which point the next original line
is read, etc.
Overrides:
read in class java.io.FilterReader
Returns:
the next character in the resulting stream, or -1
if the end of the resulting stream has been reached
Throws:
java.io.IOException - if the underlying stream throws an IOException
during reading
setPrefix
public final void setPrefix(java.lang.String prefix)
Sets the prefix to add at the start of each input line.
Parameters:
prefix - The prefix to add at the start of each input line.
May be null, in which case no prefix
is added.
chain
public final java.io.Reader chain(java.io.Reader rdr)
Creates a new PrefixLines filter using the passed in
Reader for instantiation.