org.xwiki.diff

Interface Delta<E>

Type Parameters:

E - the type of compared elements

public interface Delta<E>

A delta between two version of a list.

Version:

$Id: 45cfe6a428611d8627ff75ed4d3a37e149775393 $

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	Delta.Type The kind of modification to apply on the list.

Method Summary

Methods

Modifier and Type	Method and Description
void	apply(List<E> target) Apply the delta on the provided list.
Chunk<E>	getNext()
Chunk<E>	getPrevious()
Delta.Type	getType()
void	restore(List<E> target) Apply the an inverted version of the delta on the provided list.
void	verify(List<E> target) Try to apply the delta on the provided list.

Method Detail

verify

void verify(List<E> target)
            throws PatchException

Try to apply the delta on the provided list.

Parameters:

target - the list to modify

Throws:

PatchException - if the delta cannot be applied

apply

void apply(List<E> target)
           throws PatchException

Apply the delta on the provided list.

Parameters:

target - the list to modify

Throws:

PatchException - if the delta cannot be applied

restore

void restore(List<E> target)
             throws PatchException

Apply the an inverted version of the delta on the provided list.

Parameters:

target - the list to modify

Throws:

PatchException - if the delta cannot be applied

getType

Delta.Type getType()

Returns:

the type of modification applied to the list

getPrevious

Chunk<E> getPrevious()

Returns:

the chunk before the modification

getNext

Chunk<E> getNext()

Returns:

the chunk after the modification