org.unitils.reflectionassert.difference

Interface DifferenceVisitor<T,A>

All Known Implementing Classes:

DefaultDifferenceView.DifferenceFormatterVisitor, InnerDifferenceFinder.InnerDifferenceVisitor, MatchingScoreCalculator.MatchingScoreVisitor, TreeDifferenceView.TreeDifferenceFormatterVisitor

public interface DifferenceVisitor<T,A>

A visitor for visiting all types of differences.

All difference classes should implement a double-dispatch method as follows:

 public <T, A> T accept(DifferenceVisitor<T, A> visitor, A argument) {
      return visitor.visit(this, argument);
 }
 

The visitor logic can the be invoked as follows:

 difference.accept(new MyVisitor(), anOptionalArgument);
 

T determines the result type, A determines the type of the optional argument

Author:

Tim Ducheyne, Filip Neven

Method Summary

Methods

Modifier and Type	Method and Description
T	visit(ClassDifference classDifference, A argument) Visits a class difference.
T	visit(CollectionDifference collectionDifference, A argument) Visits a collection difference.
T	visit(Difference difference, A argument) Visits a simple difference.
T	visit(MapDifference mapDifference, A argument) Visits a map difference.
T	visit(ObjectDifference objectDifference, A argument) Visits an object difference.
T	visit(UnorderedCollectionDifference unorderedCollectionDifference, A argument) Visits an unordered collection difference.

Method Detail

visit

T visit(Difference difference,
      A argument)

Visits a simple difference.

Parameters:

difference - The difference

argument - An optional argument, null if NA

Returns:

The result

visit

T visit(ObjectDifference objectDifference,
      A argument)

Visits an object difference.

Parameters:

objectDifference - The difference

argument - An optional argument, null if NA

Returns:

The result

visit

T visit(ClassDifference classDifference,
      A argument)

Visits a class difference.

Parameters:

classDifference - The difference

argument - An optional argument, null if NA

Returns:

The result

visit

T visit(MapDifference mapDifference,
      A argument)

Visits a map difference.

Parameters:

mapDifference - The difference

argument - An optional argument, null if NA

Returns:

The result

visit

T visit(CollectionDifference collectionDifference,
      A argument)

Visits a collection difference.

Parameters:

collectionDifference - The difference

argument - An optional argument, null if NA

Returns:

The result

visit

T visit(UnorderedCollectionDifference unorderedCollectionDifference,
      A argument)

Visits an unordered collection difference.

Parameters:

unorderedCollectionDifference - The difference

argument - An optional argument, null if NA

Returns:

The result