Package org.mycore.datamodel.ifs2

Class MCRFileStore

java.lang.Object

org.mycore.datamodel.ifs2.MCRStore

org.mycore.datamodel.ifs2.MCRFileStore

public class MCRFileStore
extends MCRStore

Stores file collections containing files and directories. For each store, properties must be defined, for example MCR.IFS2.Store.ID.Class=org.mycore.datamodel.ifs2.MCRFileStore MCR.IFS2.Store.ID.BaseDir=/foo/bar MCR.IFS2.Store.ID.SlotLayout=4-2-2

Author:

Frank Lützenkirchen

Nested Class Summary

Nested classes/interfaces inherited from class org.mycore.datamodel.ifs2.MCRStore

MCRStore.MCRStoreConfig

Field Summary

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

ASCENDING, baseDirectory, DESCENDING, id, idLength, lastID, LOGGER, offset, prefix, slotLength, suffix

Constructor Summary

Constructors

Constructor	Description
MCRFileStore()

Method Summary

Modifier and Type	Method	Description
MCRFileCollection	create()	Creates and stores a new, empty file collection using the next free ID in the store.
MCRFileCollection	create(int id)	Creates and stores a new, empty file collection with the given ID
void	delete(int id)	Deletes the data stored under the given ID from the store
void	repairAllMetadata()	Repairs metadata of all file collections stored here
MCRFileCollection	retrieve(int id)	Returns the file collection stored under the given ID, or null when no collection is stored for the given ID.

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

exists, getBaseDirectory, getHighestStoredID, getID, getNextFreeID, getSlot, getStoreConfig, getStoredIDs, init, init, isEmpty, listIDs, setStoreConfig

Methods inherited from class java.lang.Object

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

Constructor Details

MCRFileStore

public MCRFileStore()

Method Details

create

public MCRFileCollection create()
                         throws IOException

Creates and stores a new, empty file collection using the next free ID in the store.

Returns:

a newly created file collection

Throws:

IOException

create

public MCRFileCollection create(int id)
                         throws IOException

Creates and stores a new, empty file collection with the given ID

Parameters:

id - the ID of the file collection

Returns:

a newly created file collection

Throws:

IOException - when a file collection with the given ID already exists

delete

public void delete(int id)
            throws IOException

Description copied from class: MCRStore

Deletes the data stored under the given ID from the store

Overrides:

delete in class MCRStore

Parameters:

id - the ID of the document to be deleted

Throws:

IOException

retrieve

public MCRFileCollection retrieve(int id)
                           throws IOException

Returns the file collection stored under the given ID, or null when no collection is stored for the given ID.

Parameters:

id - the file collection's ID

Returns:

the file collection with the given ID, or null

Throws:

IOException

repairAllMetadata

public void repairAllMetadata()
                       throws IOException

Repairs metadata of all file collections stored here

Throws:

IOException