Package org.alfresco.util.schemacomp

Interface ComparisonUtils

All Known Implementing Classes:

DefaultComparisonUtils

public interface ComparisonUtils

Utilities for comparing data structures in the context of comparing two database schemas.

Author:

Matt Ward

Method Summary

Modifier and Type	Method	Description
void	compareCollections(Collection<? extends DbObject> leftCollection, Collection<? extends DbObject> rightCollection, DiffContext ctx)	Compare collections of DbObjects using their DbObject.diff(DbObject, DiffContext) method.
void	compareSimple(DbProperty left, DbProperty right, DiffContext ctx)	Compare two 'simple' (i.e.
void	compareSimpleCollections(DbProperty leftProperty, DbProperty rightProperty, DiffContext ctx)	Compare two collections.
void	compareSimpleOrderedLists(DbProperty leftProperty, DbProperty rightProperty, DiffContext ctx)	Compare two Lists of 'simple' (i.e.
List<DbObject>	findEquivalentObjects(DbObject rootObject, DbObject objToMatch)

Method Details

findEquivalentObjects

List<DbObject> findEquivalentObjects(DbObject rootObject,
 DbObject objToMatch)

compareSimpleOrderedLists

void compareSimpleOrderedLists(DbProperty leftProperty,
 DbProperty rightProperty,
 DiffContext ctx)

Compare two Lists of 'simple' (i.e. non-DbObject) objects. Ordering is significant - if an element E appears in both collections but at different indexes then it is not considered to be the same item.

Parameters:

leftProperty - DbProperty

rightProperty - DbProperty

ctx - DiffContext

compareSimpleCollections

void compareSimpleCollections(DbProperty leftProperty,
 DbProperty rightProperty,
 DiffContext ctx)

Compare two collections. Similar to compareSimpleOrderedLists(DbProperty, DbProperty, DiffContext) except that this method operates on Collections and order (and cardinality) is not important. If an element E from the reference collection appears one or more times at any position in the target collection then that element is said to be in both with no difference.

Parameters:

leftProperty - DbProperty

rightProperty - DbProperty

ctx - - context

compareCollections

void compareCollections(Collection<? extends DbObject> leftCollection,
 Collection<? extends DbObject> rightCollection,
 DiffContext ctx)

Compare collections of DbObjects using their DbObject.diff(DbObject, DiffContext) method.

Parameters:

ctx - - context

compareSimple

void compareSimple(DbProperty left,
 DbProperty right,
 DiffContext ctx)

Compare two 'simple' (i.e. non-DbObject) objects using their Object.equals(Object) method to decide if there is a difference.

Parameters:

left - DbProperty

right - DbProperty

ctx - - context