org.mycore.datamodel.ifs2
Class MCRVersionedMetadata

java.lang.Object
  org.mycore.datamodel.ifs2.MCRStoredMetadata
      org.mycore.datamodel.ifs2.MCRVersionedMetadata

public class MCRVersionedMetadata
extends MCRStoredMetadata

Represents an XML metadata document that is stored in a local filesystem store and in parallel in a Subversion repository to track and restore changes.

Author:

Frank Lützenkirchen

Field Summary

protected static Logger	LOGGER The logger
protected long	revision The revision number of the metadata version that is currently in the local filesystem store.

Fields inherited from class org.mycore.datamodel.ifs2.MCRStoredMetadata

fo, id, store

Constructor Summary

MCRVersionedMetadata(MCRMetadataStore store, org.apache.commons.vfs.FileObject fo, int id)
Creates a new metadata object both in the local store and in the SVN repository

Method Summary

(package private) void	commit(String mode)
(package private) void	create(MCRContent xml) Stores a new metadata object first in the SVN repository, then additionally in the local store.
void	delete() Deletes this metadata object in the SVN repository, and in the local store.
long	getRevision() Returns the revision number of the version currently stored in the local filesystem store.
MCRVersioningMetadataStore	getStore() Returns the store this metadata document is stored in
boolean	isUpToDate() Checks if the version in the local store is up to date with the latest version in SVN repository
List<MCRMetadataVersion>	listVersions() Lists all versions of this metadata object available in the subversion repository
void	update() Updates the version stored in the local filesystem to the latest version from Subversion repository HEAD.
void	update(MCRContent xml) Updates this metadata object, first in the SVN repository and then in the local store

Methods inherited from class org.mycore.datamodel.ifs2.MCRStoredMetadata

getID, getLastModified, getMetadata, isDeleted, setLastModified

Methods inherited from class java.lang.Object

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

Field Detail

LOGGER

protected static final Logger LOGGER

The logger

revision

protected long revision

The revision number of the metadata version that is currently in the local filesystem store.

Constructor Detail

MCRVersionedMetadata

MCRVersionedMetadata(MCRMetadataStore store,
                     org.apache.commons.vfs.FileObject fo,
                     int id)

Creates a new metadata object both in the local store and in the SVN repository

Parameters:

store - the store this object is stored in

fo - the file storing the data in the local filesystem

id - the id of the metadata object

Method Detail

getStore

public MCRVersioningMetadataStore getStore()

Description copied from class: MCRStoredMetadata

Returns the store this metadata document is stored in

Overrides:

getStore in class MCRStoredMetadata

Returns:

the store this metadata document is stored in

create

void create(MCRContent xml)
      throws Exception

Stores a new metadata object first in the SVN repository, then additionally in the local store.

Overrides:

create in class MCRStoredMetadata

Parameters:

xml - the metadata document to store

Throws:

Exception

update

public void update(MCRContent xml)
            throws Exception

Updates this metadata object, first in the SVN repository and then in the local store

Overrides:

update in class MCRStoredMetadata

Parameters:

xml - the new version of the document metadata

Throws:

Exception

commit

void commit(String mode)
      throws Exception

Throws:

Exception

delete

public void delete()
            throws Exception

Deletes this metadata object in the SVN repository, and in the local store.

Overrides:

delete in class MCRStoredMetadata

Throws:

Exception

update

public void update()
            throws Exception

Updates the version stored in the local filesystem to the latest version from Subversion repository HEAD.

Throws:

Exception

listVersions

public List<MCRMetadataVersion> listVersions()
                                      throws Exception

Lists all versions of this metadata object available in the subversion repository

Returns:

all stored versions of this metadata object

Throws:

Exception

getRevision

public long getRevision()

Returns the revision number of the version currently stored in the local filesystem store.

Returns:

the revision number of the local version

isUpToDate

public boolean isUpToDate()
                   throws Exception

Checks if the version in the local store is up to date with the latest version in SVN repository

Returns:

true, if the local version in store is the latest version

Throws:

Exception