org.dspace.content.dao.impl

Class ItemDAOImpl

java.lang.Object

org.dspace.core.AbstractHibernateDAO<T>

org.dspace.core.AbstractHibernateDSODAO<Item>

org.dspace.content.dao.impl.ItemDAOImpl

All Implemented Interfaces:

DSpaceObjectDAO<Item>, DSpaceObjectLegacySupportDAO<Item>, ItemDAO, GenericDAO<Item>

public class ItemDAOImpl
extends AbstractHibernateDSODAO<Item>
implements ItemDAO

Hibernate implementation of the Database Access Object interface class for the Item object. This class is responsible for all database calls for the Item object and is autowired by spring This class should never be accessed directly.

Author:

kevinvandevelde at atmire.com

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ItemDAOImpl()

Method Summary

Methods

Modifier and Type	Method and Description
int	countItems(Context context, boolean includeArchived, boolean includeWithdrawn) Count number of items based on specific status flags
int	countItems(Context context, Collection collection, boolean includeArchived, boolean includeWithdrawn) Count number of items in a given collection
int	countItems(Context context, List<Collection> collections, boolean includeArchived, boolean includeWithdrawn) Count number of unique items across several collections at once.
int	countRows(Context context) Count total number of items (rows in item table)
Iterator<Item>	findAll(Context context, boolean archived)
Iterator<Item>	findAll(Context context, boolean archived, boolean withdrawn)
Iterator<Item>	findAll(Context context, boolean archived, boolean withdrawn, boolean discoverable, Date lastModified) Get all Items installed or withdrawn, discoverable, and modified since a Date.
Iterator<Item>	findAllByCollection(Context context, Collection collection)
Iterator<Item>	findArchivedByCollection(Context context, Collection collection, Integer limit, Integer offset)
Iterator<Item>	findByAuthorityValue(Context context, MetadataField metadataField, String authority, boolean inArchive)
Iterator<Item>	findByLastModifiedSince(Context context, Date since) Find all Items modified since a Date.
Iterator<Item>	findByMetadataField(Context context, MetadataField metadataField, String value, boolean inArchive)
Iterator<Item>	findByMetadataQuery(Context context, List<List<MetadataField>> listFieldList, List<String> query_op, List<String> query_val, List<UUID> collectionUuids, String regexClause, int offset, int limit)
Iterator<Item>	findBySubmitter(Context context, EPerson eperson)
Iterator<Item>	findBySubmitter(Context context, EPerson eperson, MetadataField metadataField, int limit)

Methods inherited from class org.dspace.core.AbstractHibernateDSODAO

addMetadataLeftJoin, addMetadataSortQuery, addMetadataValueWhereQuery, findByLegacyId

Methods inherited from class org.dspace.core.AbstractHibernateDAO

count, count, countLong, create, createCriteria, createCriteria, createQuery, delete, findAll, findByID, findByID, findMany, findMany, findUnique, getHibernateSession, iterate, list, list, save, singleResult, singleResult, uniqueResult, uniqueResult

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.dspace.content.dao.DSpaceObjectLegacySupportDAO

findByLegacyId

Methods inherited from interface org.dspace.core.GenericDAO

create, delete, findAll, findByID, findByID, findMany, findUnique, save

Constructor Detail

ItemDAOImpl

protected ItemDAOImpl()

Method Detail

findAll

public Iterator<Item> findAll(Context context,
                     boolean archived)
                       throws SQLException

Specified by:

findAll in interface ItemDAO

Throws:

SQLException

findAll

public Iterator<Item> findAll(Context context,
                     boolean archived,
                     boolean withdrawn)
                       throws SQLException

Specified by:

findAll in interface ItemDAO

Throws:

SQLException

findAll

public Iterator<Item> findAll(Context context,
                     boolean archived,
                     boolean withdrawn,
                     boolean discoverable,
                     Date lastModified)
                       throws SQLException

Description copied from interface: ItemDAO

Get all Items installed or withdrawn, discoverable, and modified since a Date.

Specified by:

findAll in interface ItemDAO

Parameters:

context - context

archived - whether to find archived

withdrawn - whether to find withdrawn

discoverable - whether to find discoverable

lastModified - earliest interesting last-modified date.

Returns:

iterator over items

Throws:

SQLException - if database error

findBySubmitter

public Iterator<Item> findBySubmitter(Context context,
                             EPerson eperson)
                               throws SQLException

Specified by:

findBySubmitter in interface ItemDAO

Throws:

SQLException

findBySubmitter

public Iterator<Item> findBySubmitter(Context context,
                             EPerson eperson,
                             MetadataField metadataField,
                             int limit)
                               throws SQLException

Specified by:

findBySubmitter in interface ItemDAO

Throws:

SQLException

findByMetadataField

public Iterator<Item> findByMetadataField(Context context,
                                 MetadataField metadataField,
                                 String value,
                                 boolean inArchive)
                                   throws SQLException

Specified by:

findByMetadataField in interface ItemDAO

Throws:

SQLException

findByMetadataQuery

public Iterator<Item> findByMetadataQuery(Context context,
                                 List<List<MetadataField>> listFieldList,
                                 List<String> query_op,
                                 List<String> query_val,
                                 List<UUID> collectionUuids,
                                 String regexClause,
                                 int offset,
                                 int limit)
                                   throws SQLException

Specified by:

findByMetadataQuery in interface ItemDAO

Throws:

SQLException

findByAuthorityValue

public Iterator<Item> findByAuthorityValue(Context context,
                                  MetadataField metadataField,
                                  String authority,
                                  boolean inArchive)
                                    throws SQLException

Specified by:

findByAuthorityValue in interface ItemDAO

Throws:

SQLException

findArchivedByCollection

public Iterator<Item> findArchivedByCollection(Context context,
                                      Collection collection,
                                      Integer limit,
                                      Integer offset)
                                        throws SQLException

Specified by:

findArchivedByCollection in interface ItemDAO

Throws:

SQLException

findAllByCollection

public Iterator<Item> findAllByCollection(Context context,
                                 Collection collection)
                                   throws SQLException

Specified by:

findAllByCollection in interface ItemDAO

Throws:

SQLException

countItems

public int countItems(Context context,
             Collection collection,
             boolean includeArchived,
             boolean includeWithdrawn)
               throws SQLException

Description copied from interface: ItemDAO

Count number of items in a given collection

Specified by:

countItems in interface ItemDAO

Parameters:

context - context

collection - the collection

includeArchived - whether to include archived items in count

includeWithdrawn - whether to include withdrawn items in count

Returns:

item count

Throws:

SQLException - if database error

countItems

public int countItems(Context context,
             List<Collection> collections,
             boolean includeArchived,
             boolean includeWithdrawn)
               throws SQLException

Description copied from interface: ItemDAO

Count number of unique items across several collections at once. This method can be used with CommunityService.getAllCollections(Context,Community) to determine the unique number of items in a Community.

Specified by:

countItems in interface ItemDAO

Parameters:

context - context

collections - the list of collections

includeArchived - whether to include archived items in count

includeWithdrawn - whether to include withdrawn items in count

Returns:

item count

Throws:

SQLException - if database error

findByLastModifiedSince

public Iterator<Item> findByLastModifiedSince(Context context,
                                     Date since)
                                       throws SQLException

Description copied from interface: ItemDAO

Find all Items modified since a Date.

Specified by:

findByLastModifiedSince in interface ItemDAO

Parameters:

context - Context

since - Earliest interesting last-modified date.

Returns:

iterator over items

Throws:

SQLException - if database error

countRows

public int countRows(Context context)
              throws SQLException

Description copied from interface: ItemDAO

Count total number of items (rows in item table)

Specified by:

countRows in interface ItemDAO

Parameters:

context - context

Returns:

total count

Throws:

SQLException - if database error

countItems

public int countItems(Context context,
             boolean includeArchived,
             boolean includeWithdrawn)
               throws SQLException

Description copied from interface: ItemDAO

Count number of items based on specific status flags

Specified by:

countItems in interface ItemDAO

Parameters:

context - context

includeArchived - whether to include archived items in count

includeWithdrawn - whether to include withdrawn items in count

Returns:

count of items

Throws:

SQLException - if database error