org.javers.core.diff

Class Diff

java.lang.Object

org.javers.core.diff.Diff

public class Diff
extends Object

Diff is a set of (atomic) changes between two graphs of objects.

Typically it is used to capture and trace changes made by user on his domain data. In this case diff is done between previous and current state of a bunch of domain objects.

Author:

bartosz walacik

Method Summary

Modifier and Type	Method and Description
Map<Class<? extends Change>,Integer>	countByType()
List<Change>	getChanges() Full list of changes
List<Change>	getChanges(Predicate<Change> predicate) Changes that satisfies given filter condition
<C extends Change> List<C>	getChangesByType(Class<C> type)
<C extends Change> List	getObjectsByChangeType(Class<C> type) Selects new, removed or changed objects
List	getObjectsWithChangedProperty(String propertyName) Selects objects with changed property for given property name
List<PropertyChange>	getPropertyChanges(String propertyName) Selects property changes for given property name
boolean	hasChanges()
String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

getObjectsByChangeType

public <C extends Change> List getObjectsByChangeType(Class<C> type)

Selects new, removed or changed objects

Throws:

JaversException - AFFECTED_CDO_IS_NOT_AVAILABLE if diff is restored from repository, see Change.getAffectedCdo()

getObjectsWithChangedProperty

public List getObjectsWithChangedProperty(String propertyName)

Selects objects with changed property for given property name

Throws:

JaversException - AFFECTED_CDO_IS_NOT_AVAILABLE if diff is restored from repository, see Change.getAffectedCdo()

getChanges

public List<Change> getChanges()

Full list of changes

Returns:

unmodifiable list

getChanges

public List<Change> getChanges(Predicate<Change> predicate)

Changes that satisfies given filter condition

getChangesByType

public <C extends Change> List<C> getChangesByType(Class<C> type)

getPropertyChanges

public List<PropertyChange> getPropertyChanges(String propertyName)

Selects property changes for given property name

hasChanges

public boolean hasChanges()

toString

public String toString()

Overrides:

toString in class Object

countByType

public Map<Class<? extends Change>,Integer> countByType()