ReliableLog.LogFile

extends RandomAccessFile

java.lang.Object
↳	java.io.RandomAccessFile
	↳	sun.rmi.log.ReliableLog.LogFile

Class Overview

ReliableLog's log file implementation. This implementation is subclassable for testing purposes.

Summary

Public Constructors
	ReliableLog.LogFile(String name, String mode) Constructs a LogFile and initializes the file descriptor.

Protected Methods
boolean	checkSpansBoundary(long fp) Returns true if writing 4 bytes starting at the specified file position, would span a 512 byte sector boundary; otherwise returns false.
void	sync() Invokes sync on the file descriptor for this log file.

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Inherited Methods

From class java.io.RandomAccessFile

void	close() Closes this random access file stream and releases any system resources associated with the stream.
final FileChannel	getChannel() Returns the unique `FileChannel` object associated with this file.
final FileDescriptor	getFD() Returns the opaque file descriptor object associated with this stream.
long	getFilePointer() Returns the current offset in this file.
long	length() Returns the length of this file.
int	read(byte[] b, int off, int len) Reads up to `len` bytes of data from this file into an array of bytes.
int	read(byte[] b) Reads up to `b.length` bytes of data from this file into an array of bytes.
int	read() Reads a byte of data from this file.
final boolean	readBoolean() Reads a `boolean` from this file.
final byte	readByte() Reads a signed eight-bit value from this file.
final char	readChar() Reads a character from this file.
final double	readDouble() Reads a `double` from this file.
final float	readFloat() Reads a `float` from this file.
final void	readFully(byte[] b) Reads `b.length` bytes from this file into the byte array, starting at the current file pointer.
final void	readFully(byte[] b, int off, int len) Reads exactly `len` bytes from this file into the byte array, starting at the current file pointer.
final int	readInt() Reads a signed 32-bit integer from this file.
final String	readLine() Reads the next line of text from this file.
final long	readLong() Reads a signed 64-bit integer from this file.
final short	readShort() Reads a signed 16-bit number from this file.
final String	readUTF() Reads in a string from this file.
final int	readUnsignedByte() Reads an unsigned eight-bit number from this file.
final int	readUnsignedShort() Reads an unsigned 16-bit number from this file.
void	seek(long pos) Sets the file-pointer offset, measured from the beginning of this file, at which the next read or write occurs.
void	setLength(long newLength) Sets the length of this file.
int	skipBytes(int n) Attempts to skip over `n` bytes of input discarding the skipped bytes.
void	write(int b) Writes the specified byte to this file.
void	write(byte[] b, int off, int len) Writes `len` bytes from the specified byte array starting at offset `off` to this file.
void	write(byte[] b) Writes `b.length` bytes from the specified byte array to this file, starting at the current file pointer.
final void	writeBoolean(boolean v) Writes a `boolean` to the file as a one-byte value.
final void	writeByte(int v) Writes a `byte` to the file as a one-byte value.
final void	writeBytes(String s) Writes the string to the file as a sequence of bytes.
final void	writeChar(int v) Writes a `char` to the file as a two-byte value, high byte first.
final void	writeChars(String s) Writes a string to the file as a sequence of characters.
final void	writeDouble(double v) Converts the double argument to a `long` using the `doubleToLongBits` method in class `Double`, and then writes that `long` value to the file as an eight-byte quantity, high byte first.
final void	writeFloat(float v) Converts the float argument to an `int` using the `floatToIntBits` method in class `Float`, and then writes that `int` value to the file as a four-byte quantity, high byte first.
final void	writeInt(int v) Writes an `int` to the file as four bytes, high byte first.
final void	writeLong(long v) Writes a `long` to the file as eight bytes, high byte first.
final void	writeShort(int v) Writes a `short` to the file as two bytes, high byte first.
final void	writeUTF(String str) Writes a string to the file using modified UTF-8 encoding in a machine-independent manner.

From class java.lang.Object

Object	clone() Creates and returns a copy of this object.
boolean	equals(Object obj) Indicates whether some other object is "equal to" this one.
void	finalize() Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
final Class<?>	getClass() Returns the runtime class of this `Object`.
int	hashCode() Returns a hash code value for the object.
final void	notify() Wakes up a single thread that is waiting on this object's monitor.
final void	notifyAll() Wakes up all threads that are waiting on this object's monitor.
String	toString() Returns a string representation of the object.
final void	wait() Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.
final void	wait(long timeout, int nanos) Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
final void	wait(long timeout) Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.

From interface java.io.Closeable

From interface java.io.DataInput

abstract boolean	readBoolean() Reads one input byte and returns `true` if that byte is nonzero, `false` if that byte is zero.
abstract byte	readByte() Reads and returns one input byte.
abstract char	readChar() Reads two input bytes and returns a `char` value.
abstract double	readDouble() Reads eight input bytes and returns a `double` value.
abstract float	readFloat() Reads four input bytes and returns a `float` value.
abstract void	readFully(byte[] b) Reads some bytes from an input stream and stores them into the buffer array `b`.
abstract void	readFully(byte[] b, int off, int len) Reads `len` bytes from an input stream.
abstract int	readInt() Reads four input bytes and returns an `int` value.
abstract String	readLine() Reads the next line of text from the input stream.
abstract long	readLong() Reads eight input bytes and returns a `long` value.
abstract short	readShort() Reads two input bytes and returns a `short` value.
abstract String	readUTF() Reads in a string that has been encoded using a modified UTF-8 format.
abstract int	readUnsignedByte() Reads one input byte, zero-extends it to type `int`, and returns the result, which is therefore in the range `0` through `255`.
abstract int	readUnsignedShort() Reads two input bytes and returns an `int` value in the range `0` through `65535`.
abstract int	skipBytes(int n) Makes an attempt to skip over `n` bytes of data from the input stream, discarding the skipped bytes.

From interface java.io.DataOutput

abstract void	write(int b) Writes to the output stream the eight low-order bits of the argument `b`.
abstract void	write(byte[] b, int off, int len) Writes `len` bytes from array `b`, in order, to the output stream.
abstract void	write(byte[] b) Writes to the output stream all the bytes in array `b`.
abstract void	writeBoolean(boolean v) Writes a `boolean` value to this output stream.
abstract void	writeByte(int v) Writes to the output stream the eight low- order bits of the argument `v`.
abstract void	writeBytes(String s) Writes a string to the output stream.
abstract void	writeChar(int v) Writes a `char` value, which is comprised of two bytes, to the output stream.
abstract void	writeChars(String s) Writes every character in the string `s`, to the output stream, in order, two bytes per character.
abstract void	writeDouble(double v) Writes a `double` value, which is comprised of eight bytes, to the output stream.
abstract void	writeFloat(float v) Writes a `float` value, which is comprised of four bytes, to the output stream.
abstract void	writeInt(int v) Writes an `int` value, which is comprised of four bytes, to the output stream.
abstract void	writeLong(long v) Writes a `long` value, which is comprised of eight bytes, to the output stream.
abstract void	writeShort(int v) Writes two bytes to the output stream to represent the value of the argument.
abstract void	writeUTF(String s) Writes two bytes of length information to the output stream, followed by the modified UTF-8 representation of every character in the string `s`.

Public Constructors

public ReliableLog.LogFile (String name, String mode)

Constructs a LogFile and initializes the file descriptor.

Throws

FileNotFoundException
IOException

Protected Methods

protected boolean checkSpansBoundary (long fp)

Returns true if writing 4 bytes starting at the specified file position, would span a 512 byte sector boundary; otherwise returns false.

protected void sync ()

Invokes sync on the file descriptor for this log file.

Throws

IOException

Classes

ReliableLog.LogFile

Class Overview

Summary

Public Constructors

public ReliableLog.LogFile (String name, String mode)

Throws

Protected Methods

protected boolean checkSpansBoundary (long fp)

protected void sync ()

Throws