org.springframework.data.history
Class AnnotationRevisionMetadata<N extends Number & Comparable<N>>

java.lang.Object
  org.springframework.data.history.AnnotationRevisionMetadata<N>

All Implemented Interfaces:

RevisionMetadata<N>

public class AnnotationRevisionMetadata<N extends Number & Comparable<N>>
extends Object
implements RevisionMetadata<N>

A RevisionMetadata implementation that inspects the given object for fields with the configured annotations and returns the field's values on calls to getRevisionDate() and getRevisionNumber().

Author:

Oliver Gierke

Constructor Summary

AnnotationRevisionMetadata(Object entity, Class<? extends Annotation> revisionNumberAnnotation, Class<? extends Annotation> revisionTimeStampAnnotation)
Creates a new AnnotationRevisionMetadata inspecing the given entity for the given annotations.

Method Summary

<T> T	getDelegate() Returns the underlying revision metadata which might provider more detailed implementation specific information.
org.joda.time.DateTime	getRevisionDate() Returns the date of the revision.
N	getRevisionNumber() Returns the revision number of the revision.

Methods inherited from class java.lang.Object

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

Constructor Detail

AnnotationRevisionMetadata

public AnnotationRevisionMetadata(Object entity,
                                  Class<? extends Annotation> revisionNumberAnnotation,
                                  Class<? extends Annotation> revisionTimeStampAnnotation)

Creates a new AnnotationRevisionMetadata inspecing the given entity for the given annotations. If no annotations will be provided these values will not be looked up from the entity and return null.

Parameters:

entity - must not be null.

revisionNumberAnnotation -

revisionTimeStampAnnotation -

Method Detail

getRevisionNumber

public N getRevisionNumber()

Description copied from interface: RevisionMetadata

Returns the revision number of the revision.

Specified by:

getRevisionNumber in interface RevisionMetadata<N extends Number & Comparable<N>>

Returns:

getRevisionDate

public org.joda.time.DateTime getRevisionDate()

Description copied from interface: RevisionMetadata

Returns the date of the revision.

Specified by:

getRevisionDate in interface RevisionMetadata<N extends Number & Comparable<N>>

Returns:

getDelegate

public <T> T getDelegate()

Description copied from interface: RevisionMetadata

Returns the underlying revision metadata which might provider more detailed implementation specific information.

Specified by:

getDelegate in interface RevisionMetadata<N extends Number & Comparable<N>>

Returns: