org.eclipse.jgit.lib
Class MutableObjectId

java.lang.Object
  org.eclipse.jgit.lib.AnyObjectId
      org.eclipse.jgit.lib.MutableObjectId

All Implemented Interfaces:

Comparable<Object>

public class MutableObjectId
extends AnyObjectId

A mutable SHA-1 abstraction.

Constructor Summary

MutableObjectId()
Empty constructor.

Method Summary

void	clear() Make this id match ObjectId.zeroId().
void	fromObjectId(AnyObjectId src) Copy an ObjectId into this mutable buffer.
void	fromRaw(byte[] bs) Convert an ObjectId from raw binary representation.
void	fromRaw(byte[] bs, int p) Convert an ObjectId from raw binary representation.
void	fromRaw(int[] ints) Convert an ObjectId from binary representation expressed in integers.
void	fromRaw(int[] ints, int p) Convert an ObjectId from binary representation expressed in integers.
void	fromString(byte[] buf, int offset) Convert an ObjectId from hex characters (US-ASCII).
void	fromString(String str) Convert an ObjectId from hex characters.
void	setByte(int index, int value) Set any byte in the id.
ObjectId	toObjectId() Obtain an immutable copy of this current object name value.

Methods inherited from class org.eclipse.jgit.lib.AnyObjectId

abbreviate, compareTo, compareTo, compareTo, compareTo, copy, copyRawTo, copyRawTo, copyRawTo, copyRawTo, copyTo, copyTo, copyTo, copyTo, copyTo, copyTo, equals, equals, equals, getByte, getFirstByte, getName, hashCode, name, startsWith, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

MutableObjectId

public MutableObjectId()

Empty constructor. Initialize object with default (zeros) value.

Method Detail

setByte

public void setByte(int index,
                    int value)

Set any byte in the id.

Parameters:

index - index of the byte to set in the raw form of the ObjectId. Must be in range [0, Constants.OBJECT_ID_LENGTH).

value - the value of the specified byte at index. Values are unsigned and thus are in the range [0,255] rather than the signed byte range of [-128, 127].

Throws:

ArrayIndexOutOfBoundsException - index is less than 0, equal to Constants.OBJECT_ID_LENGTH, or greater than Constants.OBJECT_ID_LENGTH.

clear

public void clear()

Make this id match ObjectId.zeroId().

fromObjectId

public void fromObjectId(AnyObjectId src)

Copy an ObjectId into this mutable buffer.

Parameters:

src - the source id to copy from.

fromRaw

public void fromRaw(byte[] bs)

Convert an ObjectId from raw binary representation.

Parameters:

bs - the raw byte buffer to read from. At least 20 bytes must be available within this byte array.

fromRaw

public void fromRaw(byte[] bs,
                    int p)

Convert an ObjectId from raw binary representation.

Parameters:

bs - the raw byte buffer to read from. At least 20 bytes after p must be available within this byte array.

p - position to read the first byte of data from.

fromRaw

public void fromRaw(int[] ints)

Convert an ObjectId from binary representation expressed in integers.

Parameters:

ints - the raw int buffer to read from. At least 5 integers must be available within this integers array.

fromRaw

public void fromRaw(int[] ints,
                    int p)

Convert an ObjectId from binary representation expressed in integers.

Parameters:

ints - the raw int buffer to read from. At least 5 integers after p must be available within this integers array.

p - position to read the first integer of data from.

fromString

public void fromString(byte[] buf,
                       int offset)

Convert an ObjectId from hex characters (US-ASCII).

Parameters:

buf - the US-ASCII buffer to read from. At least 40 bytes after offset must be available within this byte array.

offset - position to read the first character from.

fromString

public void fromString(String str)

Convert an ObjectId from hex characters.

Parameters:

str - the string to read from. Must be 40 characters long.

toObjectId

public ObjectId toObjectId()

Description copied from class: AnyObjectId

Obtain an immutable copy of this current object name value.

See AnyObjectId.copy() if this is a possibly subclassed (but immutable) identity and the application needs a lightweight identity only reference.

Specified by:

toObjectId in class AnyObjectId

Returns:

an immutable copy. May be this if this is already an immutable instance.