org.tmatesoft.svn.core.io.diff
Class SVNDiffInstruction
public
class
SVNDiffInstruction
extends Object
The
SVNDiffInstruction class represents instructions used as delta
applying rules.
For now there are three types of copy instructions:
-
COPY_FROM_SOURCE: that is when bytes are copied from
a source view (for example, existing revision of a file) to the target
one.
-
COPY_FROM_NEW_DATA: new data bytes (e.g. new
text) are copied to the target view.
-
COPY_FROM_TARGET: that is, when a sequence of bytes in the
target must be repeated.
These are three different ways how full text representation bytes are
obtained.
Version: 1.1.1
Author: TMate Software Ltd.
Field Summary |
static int | COPY_FROM_NEW_DATA
A type of an instruction that says that data must be copied
from the new data to the target view. |
static int | COPY_FROM_SOURCE
A type of an instruction that says that data must be copied
from the source view to the target one. |
static int | COPY_FROM_TARGET
A type of an instruction that says that data must be copied
from the target view to the target itself. |
int | length
A length bytes to copy. |
int | offset
An offset in the source from where the bytes
should be copied. |
int | type
A type of this instruction. |
Method Summary |
String | toString()
Gives a string representation of this object.
|
static void | writeInt(ByteBuffer os, int i)
Writes an integer to a byte buffer.
|
static void | writeLong(ByteBuffer os, long i)
Writes a long to a byte buffer.
|
void | writeTo(ByteBuffer target)
Wirtes this instruction to a byte buffer.
|
public static final int COPY_FROM_NEW_DATA
A type of an instruction that says that data must be copied
from the new data to the target view.
public static final int COPY_FROM_SOURCE
A type of an instruction that says that data must be copied
from the source view to the target one.
public static final int COPY_FROM_TARGET
A type of an instruction that says that data must be copied
from the target view to the target itself.
public int length
A length bytes to copy.
public int offset
An offset in the source from where the bytes
should be copied. Instruction offsets are relative to the bounds of
views, i.e. a source/target view is a window of bytes (specified in a concrete
diff window) in the source/target stream (this can be a file, a buffer).
public int type
A type of this instruction.
public SVNDiffInstruction(int t, int l, int o)
Creates a particular type of a diff instruction.
Instruction offsets are relative to the bounds of views, i.e.
a source/target view is a window of bytes (specified in a concrete
diff window) in the source/target stream (this can be a file, a buffer).
Parameters: t a type of an instruction l a number of bytes to copy o an offset in the source (which may be a source or a target
view, or a new data stream) from where
the bytes are to be copied
See Also: SVNDiffWindow
public SVNDiffInstruction()
Creates a new instruction object.
It's the instruction for the empty contents file.
public String toString()
Gives a string representation of this object.
Returns: a string representation of this object
public static void writeInt(ByteBuffer os, int i)
Writes an integer to a byte buffer.
Parameters: os a byte buffer to write to i an integer to write
public static void writeLong(ByteBuffer os, long i)
Writes a long to a byte buffer.
Parameters: os a byte buffer to write to i a long number to write
public void writeTo(ByteBuffer target)
Wirtes this instruction to a byte buffer.
Parameters: target a byte buffer to write to
Copyright © 2004-2007 TMate Software Ltd. All Rights Reserved.