org.mycore.datamodel.ifs2
Class MCRMetadataVersion

java.lang.Object
  org.mycore.datamodel.ifs2.MCRMetadataVersion

public class MCRMetadataVersion
extends Object

Provides information about a stored version of metadata and allows to retrieve that version from SVN

Author:

Frank Lützenkirchen

Field Summary

static char	CREATED A version that was created in store
static char	DELETED A version that was deleted in store
static char	UPDATED A version that was updated in store

Constructor Summary

MCRMetadataVersion(MCRVersionedMetadata vm, org.tmatesoft.svn.core.SVNLogEntry logEntry, char type)
Creates a new metadata version info object

Method Summary

Date	getDate() Returns the date and time this version was created
MCRVersionedMetadata	getMetadataObject() Returns the metadata object this version belongs to
long	getRevision() Returns the SVN revision number of this version
char	getType() Returns the type of operation this version comes from
String	getUser() Returns the user that created this version
void	restore() Replaces the current version of the metadata object with this version, which means that a new version is created that is identical to this old version.
MCRContent	retrieve() Retrieves this version of the metadata

Methods inherited from class java.lang.Object

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

Field Detail

CREATED

public static final char CREATED

A version that was created in store

See Also:

Constant Field Values

UPDATED

public static final char UPDATED

A version that was updated in store

See Also:

Constant Field Values

DELETED

public static final char DELETED

A version that was deleted in store

See Also:

Constant Field Values

Constructor Detail

MCRMetadataVersion

MCRMetadataVersion(MCRVersionedMetadata vm,
                   org.tmatesoft.svn.core.SVNLogEntry logEntry,
                   char type)

Creates a new metadata version info object

Parameters:

vm - the metadata document this version belongs to

logEntry - the log entry from SVN holding data on this version

type - the type of commit

Method Detail

getMetadataObject

public MCRVersionedMetadata getMetadataObject()

Returns the metadata object this version belongs to

Returns:

the metadata object this version belongs to

getType

public char getType()

Returns the type of operation this version comes from

See Also:

CREATED, UPDATED, DELETED

getRevision

public long getRevision()

Returns the SVN revision number of this version

Returns:

the SVN revision number of this version

getUser

public String getUser()

Returns the user that created this version

Returns:

the user that created this version

getDate

public Date getDate()

Returns the date and time this version was created

Returns:

the date and time this version was created

retrieve

public MCRContent retrieve()
                    throws Exception

Retrieves this version of the metadata

Returns:

the metadata document as it was in this version

Throws:

MCRUsageException - if this is a deleted version, which can not be retrieved

Exception

restore

public void restore()
             throws Exception

Replaces the current version of the metadata object with this version, which means that a new version is created that is identical to this old version. The stored metadata document is updated to this old version of the metadata.

Throws:

Exception