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: d451e7339ecf473cd39d91246cba1674bb102dff $

Nested Class Summary

static class

Delta.Type The kind of modification to apply on the list.

Method Summary

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