public class ReversedLinesFileReader extends Object implements Closeable
Constructor and Description |
---|
ReversedLinesFileReader(File file)
Deprecated.
2.5 use
ReversedLinesFileReader(File, Charset) instead |
ReversedLinesFileReader(File file,
Charset charset)
Creates a ReversedLinesFileReader with default block size of 4KB and the
specified encoding.
|
ReversedLinesFileReader(File file,
int blockSize,
Charset encoding)
Creates a ReversedLinesFileReader with the given block size and encoding.
|
ReversedLinesFileReader(File file,
int blockSize,
String encoding)
Creates a ReversedLinesFileReader with the given block size and encoding.
|
ReversedLinesFileReader(Path file,
Charset charset)
Creates a ReversedLinesFileReader with default block size of 4KB and the
specified encoding.
|
ReversedLinesFileReader(Path file,
int blockSize,
Charset encoding)
Creates a ReversedLinesFileReader with the given block size and encoding.
|
ReversedLinesFileReader(Path file,
int blockSize,
String charsetName)
Creates a ReversedLinesFileReader with the given block size and encoding.
|
Modifier and Type | Method and Description |
---|---|
void |
close()
Closes underlying resources.
|
String |
readLine()
Returns the lines of the file from bottom to top.
|
@Deprecated public ReversedLinesFileReader(File file) throws IOException
ReversedLinesFileReader(File, Charset)
insteadfile
- the file to be readIOException
- if an I/O error occurspublic ReversedLinesFileReader(File file, Charset charset) throws IOException
file
- the file to be readcharset
- the charset to useIOException
- if an I/O error occurspublic ReversedLinesFileReader(Path file, Charset charset) throws IOException
file
- the file to be readcharset
- the charset to useIOException
- if an I/O error occurspublic ReversedLinesFileReader(File file, int blockSize, Charset encoding) throws IOException
file
- the file to be readblockSize
- size of the internal buffer (for ideal performance this should
match with the block size of the underlying file system).encoding
- the encoding of the fileIOException
- if an I/O error occurspublic ReversedLinesFileReader(Path file, int blockSize, Charset encoding) throws IOException
file
- the file to be readblockSize
- size of the internal buffer (for ideal performance this should
match with the block size of the underlying file system).encoding
- the encoding of the fileIOException
- if an I/O error occurspublic ReversedLinesFileReader(File file, int blockSize, String encoding) throws IOException
file
- the file to be readblockSize
- size of the internal buffer (for ideal performance this should
match with the block size of the underlying file system).encoding
- the encoding of the fileIOException
- if an I/O error occursUnsupportedCharsetException
- thrown instead of UnsupportedEncodingException
in
version 2.2 if the encoding is not supported.public ReversedLinesFileReader(Path file, int blockSize, String charsetName) throws IOException
file
- the file to be readblockSize
- size of the internal buffer (for ideal performance this should
match with the block size of the underlying file system).charsetName
- the encoding of the fileIOException
- if an I/O error occursUnsupportedCharsetException
- thrown instead of UnsupportedEncodingException
in
version 2.2 if the encoding is not supported.public String readLine() throws IOException
IOException
- if an I/O error occurspublic void close() throws IOException
close
in interface Closeable
close
in interface AutoCloseable
IOException
- if an I/O error occursCopyright © 2002–2020 The Apache Software Foundation. All rights reserved.