org.javers.core.diff

Class Change

java.lang.Object

org.javers.core.diff.Change

All Implemented Interfaces:

Visitable<ChangeVisitor>

Direct Known Subclasses:

NewObject, ObjectRemoved, PropertyChange

public abstract class Change
extends Object
implements Visitable<ChangeVisitor>

Change represents atomic difference between two objects.

There are several change types: ValueChange, ReferenceChange, ... For complete list see inheritance hierarchy.

Change is a Value Object and typically can not exists without owning Diff. For more information see Diff javadoc.

Author:

bartosz walacik

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Change(GlobalId affectedCdoId)
protected	Change(GlobalId affectedCdoId, CommitMetadata commitMetadata)

Method Summary

Modifier and Type	Method and Description
void	accept(ChangeVisitor changeVisitor)
void	bindToCommit(CommitMetadata commitMetadata)
Object	getAffectedCdo() Affected Cdo, depending on concrete Change type, it could be new Object, removed Object or new version of changed Object Transient reference - available only for freshly generated diff
GlobalId	getAffectedCdoId() Affected Cdo Id
Optional<CommitMetadata>	getCommitMetadata()
protected void	setAffectedCdo(Optional<Object> affectedCdo)

Methods inherited from class java.lang.Object

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

Constructor Detail

Change

protected Change(GlobalId affectedCdoId)

Change

protected Change(GlobalId affectedCdoId,
                 CommitMetadata commitMetadata)

Method Detail

bindToCommit

public void bindToCommit(CommitMetadata commitMetadata)

getAffectedCdoId

public GlobalId getAffectedCdoId()

Affected Cdo Id

getAffectedCdo

public Object getAffectedCdo()

Affected Cdo, depending on concrete Change type, it could be new Object, removed Object or new version of changed Object

Transient reference - available only for freshly generated diff

Throws:

JaversException - AFFECTED_CDO_IS_NOT_AVAILABLE

setAffectedCdo

protected void setAffectedCdo(Optional<Object> affectedCdo)

accept

public void accept(ChangeVisitor changeVisitor)

Specified by:

accept in interface Visitable<ChangeVisitor>

getCommitMetadata

public Optional<CommitMetadata> getCommitMetadata()