org.alfresco.util.schemacomp

Class DefaultComparisonUtils

java.lang.Object

org.alfresco.util.schemacomp.DefaultComparisonUtils

All Implemented Interfaces:

ComparisonUtils

public class DefaultComparisonUtils
extends Object
implements ComparisonUtils

A collection of utility methods for determining differences between two database schemas.

Author:

Matt Ward

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DefaultComparisonUtils.EquivalentObjectSeeker

Constructor Summary

Constructors

Constructor and Description
DefaultComparisonUtils()

Method Summary

Modifier and Type	Method and 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 leftProperty, DbProperty rightProperty, DiffContext ctx) Compare two 'simple' (i.e.
void	compareSimpleCollections(DbProperty leftProp, DbProperty rightProp, DiffContext ctx) Compare two collections.
void	compareSimpleOrderedLists(DbProperty refProp, DbProperty targetProp, DiffContext ctx) Compare two Lists of 'simple' (i.e.
List<DbObject>	findEquivalentObjects(DbObject rootObject, DbObject objToMatch)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DefaultComparisonUtils

public DefaultComparisonUtils()

Method Detail

findEquivalentObjects

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

Specified by:

findEquivalentObjects in interface ComparisonUtils

compareSimpleOrderedLists

public void compareSimpleOrderedLists(DbProperty refProp,
                                      DbProperty targetProp,
                                      DiffContext ctx)

Description copied from interface: ComparisonUtils

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.

Specified by:

compareSimpleOrderedLists in interface ComparisonUtils

Parameters:

refProp - DbProperty

targetProp - DbProperty

ctx - DiffContext

compareSimpleCollections

public void compareSimpleCollections(DbProperty leftProp,
                                     DbProperty rightProp,
                                     DiffContext ctx)

Description copied from interface: ComparisonUtils

Compare two collections. Similar to ComparisonUtils.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.

Specified by:

compareSimpleCollections in interface ComparisonUtils

Parameters:

leftProp - DbProperty

rightProp - DbProperty

ctx - - context

compareCollections

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

Description copied from interface: ComparisonUtils

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

Specified by:

compareCollections in interface ComparisonUtils

ctx - - context

compareSimple

public void compareSimple(DbProperty leftProperty,
                          DbProperty rightProperty,
                          DiffContext ctx)

Description copied from interface: ComparisonUtils

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

Specified by:

compareSimple in interface ComparisonUtils

Parameters:

leftProperty - DbProperty

rightProperty - DbProperty

ctx - - context