Package org.javers.core.diff

Class Diff

java.lang.Object

org.javers.core.diff.Diff

All Implemented Interfaces:

Serializable

public class Diff
extends Object
implements Serializable

Diff is a list of changes between two object graphs.

Typically, it is used to capture and trace changes made on domain objects. In this case, diff is done between previous and current state of an object graph.

• getChanges() returns a flat list of Changes
• groupByObject() returns Changes grouped by objects
• prettyPrint() prints Changes to the the nicely formatted String

See Also:

• Serialized Form

Method Summary

Modifier and Type	Method	Description
String	changesSummary()
Map<Class<? extends Change>,Integer>	countByType()
Changes	getChanges()	Flat list of changes
List<Change>	getChanges(Predicate<Change> predicate)	Changes that satisfies given filter
<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
List<ChangesByObject>	groupByObject()	Changes grouped by entities
boolean	hasChanges()
final String	prettyPrint()	Prints the nicely formatted list of Changes.
String	toString()

Methods inherited from class java.lang.Object

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

Method Details

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 a repository

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,

getChanges

public Changes getChanges()

Flat list of changes

groupByObject

public List<ChangesByObject> groupByObject()

Changes grouped by entities

Since:

3.9

getChanges

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

Changes that satisfies given filter

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()

prettyPrint

public final String prettyPrint()

Prints the nicely formatted list of Changes. Alias to toString().

toString

public String toString()

Overrides:

toString in class Object

changesSummary

public String changesSummary()

countByType

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