Package org.dspace.content.dao.impl

Class RelationshipDAOImpl

java.lang.Object

org.dspace.core.AbstractHibernateDAO<Relationship>

org.dspace.content.dao.impl.RelationshipDAOImpl

All Implemented Interfaces:

RelationshipDAO, GenericDAO<Relationship>

public class RelationshipDAOImpl
extends AbstractHibernateDAO<Relationship>
implements RelationshipDAO

Constructor Summary

Constructors

Constructor	Description
RelationshipDAOImpl()

Method Summary

Modifier and Type	Method	Description
int	countByItem(Context context, Item item)	This method returns a count of Relationship objects that have the given Item object as a leftItem or a rightItem
int	countByItemAndRelationshipType(Context context, Item item, RelationshipType relationshipType)	Count total number of relationships (rows in relationship table) by an item and a relationship type
int	countByRelationshipType(Context context, RelationshipType relationshipType)	Count total number of relationships (rows in relationship table) by a relationship type
int	countByTypeName(Context context, String typeName)	Count total number of relationships (rows in relationship table) given a typeName
int	countRows(Context context)	Count total number of relationships (rows in relationship table)
List<Relationship>	findByItem(Context context, Item item)	This method returns a list of Relationship objects that have the given Item object as a leftItem or a rightItem
List<Relationship>	findByItem(Context context, Item item, Integer limit, Integer offset)	This method returns a list of Relationship objects that have the given Item object as a leftItem or a rightItem
List<Relationship>	findByItemAndRelationshipType(Context context, Item item, RelationshipType relationshipType, boolean isLeft, Integer limit, Integer offset)	This method returns a list of Relationship objects for the given RelationshipType object.
List<Relationship>	findByItemAndRelationshipType(Context context, Item item, RelationshipType relationshipType, Integer limit, Integer offset)	This method returns a list of Relationship objects for the given RelationshipType object.
List<Relationship>	findByRelationshipType(Context context, RelationshipType relationshipType)	This method returns a list of Relationship objects for the given RelationshipType object.
List<Relationship>	findByRelationshipType(Context context, RelationshipType relationshipType, Integer limit, Integer offset)	This method returns a list of Relationship objects for the given RelationshipType object.
List<Relationship>	findByTypeName(Context context, String typeName)	This method returns a list of Relationship objects for the given typeName
List<Relationship>	findByTypeName(Context context, String typeName, Integer limit, Integer offset)	This method returns a list of Relationship objects for the given typeName
int	findNextLeftPlaceByLeftItem(Context context, Item item)	This method returns the next leftplace integer to use for a relationship with this item as the leftItem
int	findNextRightPlaceByRightItem(Context context, Item item)	This method returns the next rightplace integer to use for a relationship with this item as the rightItem

Methods inherited from class org.dspace.core.AbstractHibernateDAO

count, count, countLong, create, createQuery, delete, executeCriteriaQuery, findAll, findAll, findByID, findByID, findByX, findMany, findMany, findUnique, getCriteriaBuilder, getCriteriaQuery, getHibernateSession, iterate, list, 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.core.GenericDAO

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

Constructor Detail

RelationshipDAOImpl

public RelationshipDAOImpl()

Method Detail

findByItem

public List<Relationship> findByItem(Context context,
                                     Item item)
                              throws SQLException

Description copied from interface: RelationshipDAO

This method returns a list of Relationship objects that have the given Item object as a leftItem or a rightItem

Specified by:

findByItem in interface RelationshipDAO

Parameters:

context - The relevant DSpace context

item - The item that should be either a leftItem or a rightItem of all the Relationship objects in the returned list

Returns:

The list of Relationship objects that contain either a left or a right item that is equal to the given item

Throws:

SQLException - If something goes wrong

findByItem

public List<Relationship> findByItem(Context context,
                                     Item item,
                                     Integer limit,
                                     Integer offset)
                              throws SQLException

Description copied from interface: RelationshipDAO

This method returns a list of Relationship objects that have the given Item object as a leftItem or a rightItem

Specified by:

findByItem in interface RelationshipDAO

Parameters:

context - The relevant DSpace context

item - The item that should be either a leftItem or a rightItem of all the Relationship objects in the returned list

limit - paging limit

offset - paging offset

Returns:

The list of Relationship objects that contain either a left or a right item that is equal to the given item

Throws:

SQLException - If something goes wrong

countByItem

public int countByItem(Context context,
                       Item item)
                throws SQLException

Description copied from interface: RelationshipDAO

This method returns a count of Relationship objects that have the given Item object as a leftItem or a rightItem

Specified by:

countByItem in interface RelationshipDAO

Parameters:

context - The relevant DSpace context

item - The item that should be either a leftItem or a rightItem of all the Relationship objects in the returned list

Returns:

The list of Relationship objects that contain either a left or a right item that is equal to the given item

Throws:

SQLException - If something goes wrong

findNextLeftPlaceByLeftItem

public int findNextLeftPlaceByLeftItem(Context context,
                                       Item item)
                                throws SQLException

Description copied from interface: RelationshipDAO

This method returns the next leftplace integer to use for a relationship with this item as the leftItem

Specified by:

findNextLeftPlaceByLeftItem in interface RelationshipDAO

Parameters:

context - The relevant DSpace context

item - The item to be matched on leftItem

Returns:

The next integer to be used for the leftplace of a relationship with the given item as a left item

Throws:

SQLException - If something goes wrong

findNextRightPlaceByRightItem

public int findNextRightPlaceByRightItem(Context context,
                                         Item item)
                                  throws SQLException

Description copied from interface: RelationshipDAO

This method returns the next rightplace integer to use for a relationship with this item as the rightItem

Specified by:

findNextRightPlaceByRightItem in interface RelationshipDAO

Parameters:

context - The relevant DSpace context

item - The item to be matched on rightItem

Returns:

The next integer to be used for the rightplace of a relationship with the given item as a right item

Throws:

SQLException - If something goes wrong

findByRelationshipType

public List<Relationship> findByRelationshipType(Context context,
                                                 RelationshipType relationshipType)
                                          throws SQLException

Description copied from interface: RelationshipDAO

This method returns a list of Relationship objects for the given RelationshipType object. It will construct a list of all Relationship objects that have the given RelationshipType object as the relationshipType property

Specified by:

findByRelationshipType in interface RelationshipDAO

Parameters:

context - The relevant DSpace context

relationshipType - The RelationshipType object to be checked on

Returns:

A list of Relationship objects that have the given RelationshipType object as the relationshipType property

Throws:

SQLException - If something goes wrong

findByRelationshipType

public List<Relationship> findByRelationshipType(Context context,
                                                 RelationshipType relationshipType,
                                                 Integer limit,
                                                 Integer offset)
                                          throws SQLException

Description copied from interface: RelationshipDAO

This method returns a list of Relationship objects for the given RelationshipType object. It will construct a list of all Relationship objects that have the given RelationshipType object as the relationshipType property

Specified by:

findByRelationshipType in interface RelationshipDAO

Parameters:

context - The relevant DSpace context

relationshipType - The RelationshipType object to be checked on

limit - paging limit

offset - paging offset

Returns:

A list of Relationship objects that have the given RelationshipType object as the relationshipType property

Throws:

SQLException - If something goes wrong

findByItemAndRelationshipType

public List<Relationship> findByItemAndRelationshipType(Context context,
                                                        Item item,
                                                        RelationshipType relationshipType,
                                                        Integer limit,
                                                        Integer offset)
                                                 throws SQLException

Description copied from interface: RelationshipDAO

This method returns a list of Relationship objects for the given RelationshipType object. It will construct a list of all Relationship objects that have the given RelationshipType object as the relationshipType property

Specified by:

findByItemAndRelationshipType in interface RelationshipDAO

Parameters:

context - The relevant DSpace context

item - item to filter by

relationshipType - The RelationshipType object to be checked on

limit - paging limit

offset - paging offset

Returns:

A list of Relationship objects that have the given RelationshipType object as the relationshipType property

Throws:

SQLException - If something goes wrong

findByItemAndRelationshipType

public List<Relationship> findByItemAndRelationshipType(Context context,
                                                        Item item,
                                                        RelationshipType relationshipType,
                                                        boolean isLeft,
                                                        Integer limit,
                                                        Integer offset)
                                                 throws SQLException

Description copied from interface: RelationshipDAO

This method returns a list of Relationship objects for the given RelationshipType object. It will construct a list of all Relationship objects that have the given RelationshipType object as the relationshipType property

Specified by:

findByItemAndRelationshipType in interface RelationshipDAO

Parameters:

context - The relevant DSpace context

item - item to filter by

relationshipType - The RelationshipType object to be checked on

isLeft - Is item left or right

limit - paging limit

offset - paging offset

Returns:

A list of Relationship objects that have the given RelationshipType object as the relationshipType property

Throws:

SQLException - If something goes wrong

findByTypeName

public List<Relationship> findByTypeName(Context context,
                                         String typeName)
                                  throws SQLException

Description copied from interface: RelationshipDAO

This method returns a list of Relationship objects for the given typeName

Specified by:

findByTypeName in interface RelationshipDAO

Parameters:

context - The relevant DSpace context

typeName - The leftward or rightward typeName of the relationship type

Returns:

A list of Relationship objects that have the given RelationshipType object as the relationshipType property

Throws:

SQLException - If something goes wrong

findByTypeName

public List<Relationship> findByTypeName(Context context,
                                         String typeName,
                                         Integer limit,
                                         Integer offset)
                                  throws SQLException

Description copied from interface: RelationshipDAO

This method returns a list of Relationship objects for the given typeName

Specified by:

findByTypeName in interface RelationshipDAO

Parameters:

context - The relevant DSpace context

typeName - The leftward or rightward typeName of the relationship type

limit - paging limit

offset - paging offset

Returns:

A list of Relationship objects that have the given RelationshipType object as the relationshipType property

Throws:

SQLException - If something goes wrong

countByRelationshipType

public int countByRelationshipType(Context context,
                                   RelationshipType relationshipType)
                            throws SQLException

Description copied from interface: RelationshipDAO

Count total number of relationships (rows in relationship table) by a relationship type

Specified by:

countByRelationshipType in interface RelationshipDAO

Parameters:

context - context

relationshipType - relationship type to filter by

Returns:

total count

Throws:

SQLException - if database error

countRows

public int countRows(Context context)
              throws SQLException

Description copied from interface: RelationshipDAO

Count total number of relationships (rows in relationship table)

Specified by:

countRows in interface RelationshipDAO

Parameters:

context - context

Returns:

total count

Throws:

SQLException - if database error

countByItemAndRelationshipType

public int countByItemAndRelationshipType(Context context,
                                          Item item,
                                          RelationshipType relationshipType)
                                   throws SQLException

Description copied from interface: RelationshipDAO

Count total number of relationships (rows in relationship table) by an item and a relationship type

Specified by:

countByItemAndRelationshipType in interface RelationshipDAO

Parameters:

context - context

item - item to filter by

relationshipType - relationship type to filter by

Returns:

total count

Throws:

SQLException - if database error

countByTypeName

public int countByTypeName(Context context,
                           String typeName)
                    throws SQLException

Description copied from interface: RelationshipDAO

Count total number of relationships (rows in relationship table) given a typeName

Specified by:

countByTypeName in interface RelationshipDAO

Parameters:

context - context

typeName - the relationship typeName to filter by

Returns:

total count

Throws:

SQLException - if database error