pw.prok.kdiff

Class Chunk<T>

java.lang.Object

pw.prok.kdiff.Chunk<T>

Type Parameters:

T - The type of the compared elements in the 'lines'.

public class Chunk<T>
extends java.lang.Object

Holds the information about the part of text involved in the diff process

Text is represented as Object[] because the diff engine is capable of handling more than plain ascci. In fact, arrays or lists of any type that implements hashCode() and equals() correctly can be subject to differencing using this library.

Constructor Summary

Constructors

Constructor and Description
Chunk(int position, java.util.List<T> lines) Creates a chunk and saves a copy of affected lines
Chunk(int position, T[] lines) Creates a chunk and saves a copy of affected lines

Method Summary

Modifier and Type	Method and Description
int	applyHunk(java.util.List<T> target)
int	applyHunk(java.util.List<T> target, int lastOffset)
int	applyHunk(java.util.List<T> target, int lastOffset, Equalizer<T> equalizer)
Chunk<T>	copy()
boolean	equals(java.lang.Object obj)
java.util.List<T>	getLines()
int	getPosition()
int	hashCode()
int	last()
void	setLines(java.util.List<T> lines)
int	size()
java.lang.String	toString()
void	verify(java.util.List<T> target) Verifies that this chunk's saved text matches the corresponding text in the given sequence.

Methods inherited from class java.lang.Object

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

Constructor Detail

Chunk

public Chunk(int position,
             java.util.List<T> lines)

Creates a chunk and saves a copy of affected lines

Parameters:

position - the start position

lines - the affected lines

Chunk

public Chunk(int position,
             T[] lines)

Creates a chunk and saves a copy of affected lines

Parameters:

position - the start position

lines - the affected lines

Method Detail

verify

public void verify(java.util.List<T> target)
            throws PatchFailedException

Verifies that this chunk's saved text matches the corresponding text in the given sequence.

Parameters:

target - the sequence to verify against.

Throws:

PatchFailedException - if the patch cannot be applied.

applyHunk

public int applyHunk(java.util.List<T> target)
              throws DiffException

Throws:

DiffException

applyHunk

public int applyHunk(java.util.List<T> target,
                     int lastOffset)
              throws DiffException

Throws:

DiffException

applyHunk

public int applyHunk(java.util.List<T> target,
                     int lastOffset,
                     Equalizer<T> equalizer)
              throws DiffException

Throws:

DiffException

getPosition

public int getPosition()

Returns:

the start position of chunk in the text

setLines

public void setLines(java.util.List<T> lines)

getLines

public java.util.List<T> getLines()

Returns:

the affected lines

size

public int size()

last

public int last()

Returns:

the index of the last line of the chunk.

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

copy

public Chunk<T> copy()

Returns:

full copy of this chunk