org.dspace.content

Class EntityServiceImpl

java.lang.Object

org.dspace.content.EntityServiceImpl

All Implemented Interfaces:

EntityService

public class EntityServiceImpl
extends Object
implements EntityService

Field Summary

Fields

Modifier and Type	Field and Description
protected EntityTypeService	entityTypeService
protected ItemService	itemService
protected RelationshipService	relationshipService
protected RelationshipTypeService	relationshipTypeService

Constructor Summary

Constructors

Constructor and Description
EntityServiceImpl()

Method Summary

Modifier and Type	Method and Description
Entity	findByItemId(Context context, UUID itemId) This will construct an Entity object that will be returned with the Item that matches the ItemID that was passed along as well as a list of relationships for that Item.
List<RelationshipType>	getAllRelationshipTypes(Context context, Entity entity) Retrieves the list of relationships that have a relationshiptype that contains the EntityType for the given Entity in either the leftEntityType or the rightEntityType variables
List<Relationship>	getLeftRelations(Context context, Entity entity) Retrieves the list of relationships, which are attached to the Entity object that is passed along, where the left item object of each relationship is equal to the Item object of the Entity object that is passed along
List<RelationshipType>	getLeftRelationshipTypes(Context context, Entity entity) Retrieves the list of relationships that have a relationshiptype that contains the EntityType for the given Entity in the leftEntityType
List<Relationship>	getRelationsByLabel(Context context, String label) Retrieves the list of relationships for which their relationshiptype has a left or right label that is equal to the passed along label String
List<RelationshipType>	getRelationshipTypesByLabel(Context context, String label) Retrieves a list of RelationshipType objects for which either their left or right label is equal to the label parameter that's being passed along
List<Relationship>	getRightRelations(Context context, Entity entity) Retrieves the list of relationships, which are attached to the Entity object that is passed along, where the right item object of each relationship is equal to the Item object of the Entity object that is passed along
List<RelationshipType>	getRightRelationshipTypes(Context context, Entity entity) Retrieves the list of relationships that have a relationshiptype that contains the EntityType for the given Entity in the rightEntityType
EntityType	getType(Context context, Entity entity) Returns the EntityType for the Item that is attached to the Entity that is passed along to this method.

Methods inherited from class java.lang.Object

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

Field Detail

entityTypeService

@Autowired(required=true)
protected EntityTypeService entityTypeService

relationshipService

@Autowired(required=true)
protected RelationshipService relationshipService

relationshipTypeService

@Autowired(required=true)
protected RelationshipTypeService relationshipTypeService

itemService

@Autowired(required=true)
protected ItemService itemService

Constructor Detail

EntityServiceImpl

public EntityServiceImpl()

Method Detail

findByItemId

public Entity findByItemId(Context context,
                           UUID itemId)
                    throws SQLException

Description copied from interface: EntityService

This will construct an Entity object that will be returned with the Item that matches the ItemID that was passed along as well as a list of relationships for that Item.

Specified by:

findByItemId in interface EntityService

Parameters:

context - The relevant DSpace context

itemId - The ItemID for the Item that is to be used in the Entity object

Returns:

The constructed Entity object with the Item and the list of relationships

Throws:

SQLException - If something goes wrong

getType

public EntityType getType(Context context,
                          Entity entity)
                   throws SQLException

Description copied from interface: EntityService

Returns the EntityType for the Item that is attached to the Entity that is passed along to this method. The EntityType String logic is in the Metadata for that Item and will be searched on in the EntityTypeService to retrieve the actual EntityType object

Specified by:

getType in interface EntityService

Parameters:

context - The relevant DSpace context

entity - The Entity object which contains the Item

Returns:

The EntityType that belongs to this Item

Throws:

SQLException - If something goes wrong

getLeftRelations

public List<Relationship> getLeftRelations(Context context,
                                           Entity entity)

Description copied from interface: EntityService

Retrieves the list of relationships, which are attached to the Entity object that is passed along, where the left item object of each relationship is equal to the Item object of the Entity object that is passed along

Specified by:

getLeftRelations in interface EntityService

Parameters:

context - The relevant DSpace context

entity - The Entity object to be returned

Returns:

The list of relationships that have the Item in the Entity object as their left item

getRightRelations

public List<Relationship> getRightRelations(Context context,
                                            Entity entity)

Description copied from interface: EntityService

Retrieves the list of relationships, which are attached to the Entity object that is passed along, where the right item object of each relationship is equal to the Item object of the Entity object that is passed along

Specified by:

getRightRelations in interface EntityService

Parameters:

context - The relevant DSpace context

entity - The Entity object to be returned

Returns:

The list of relationships that have the Item in the Entity object as their right item

getRelationsByLabel

public List<Relationship> getRelationsByLabel(Context context,
                                              String label)
                                       throws SQLException

Description copied from interface: EntityService

Retrieves the list of relationships for which their relationshiptype has a left or right label that is equal to the passed along label String

Specified by:

getRelationsByLabel in interface EntityService

Parameters:

context - The relevant DSpace context

label - The label that needs to be in the relationshiptype of the relationship

Returns:

The list of relationships that have a relationshiptype with a left or right label that is equal to the label param

Throws:

SQLException - If something goes wrong

getAllRelationshipTypes

public List<RelationshipType> getAllRelationshipTypes(Context context,
                                                      Entity entity)
                                               throws SQLException

Description copied from interface: EntityService

Retrieves the list of relationships that have a relationshiptype that contains the EntityType for the given Entity in either the leftEntityType or the rightEntityType variables

Specified by:

getAllRelationshipTypes in interface EntityService

Parameters:

context - The relevant DSpace context

entity - The Entity for which the EntityType should be checked for relationships

Returns:

The list of relationships that each contain a relationshiptype in which there is a right or left entity type that is equal to the entity type for the given entity

Throws:

SQLException - If something goes wrong

getLeftRelationshipTypes

public List<RelationshipType> getLeftRelationshipTypes(Context context,
                                                       Entity entity)
                                                throws SQLException

Description copied from interface: EntityService

Retrieves the list of relationships that have a relationshiptype that contains the EntityType for the given Entity in the leftEntityType

Specified by:

getLeftRelationshipTypes in interface EntityService

Parameters:

context - The relevant DSpace context

entity - The Entity for which the EntityType should be checked for relationships

Returns:

The list of relationships that each contain a relationshiptype in which there is a left entity type that is equal to the entity type for the given entity

Throws:

SQLException - If something goes wrong

getRightRelationshipTypes

public List<RelationshipType> getRightRelationshipTypes(Context context,
                                                        Entity entity)
                                                 throws SQLException

Description copied from interface: EntityService

Retrieves the list of relationships that have a relationshiptype that contains the EntityType for the given Entity in the rightEntityType

Specified by:

getRightRelationshipTypes in interface EntityService

Parameters:

context - The relevant DSpace context

entity - The Entity for which the EntityType should be checked for relationships

Returns:

The list of relationships that each contain a relationshiptype in which there is a right entity type that is equal to the entity type for the given entity

Throws:

SQLException - If something goes wrong

getRelationshipTypesByLabel

public List<RelationshipType> getRelationshipTypesByLabel(Context context,
                                                          String label)
                                                   throws SQLException

Description copied from interface: EntityService

Retrieves a list of RelationshipType objects for which either their left or right label is equal to the label parameter that's being passed along

Specified by:

getRelationshipTypesByLabel in interface EntityService

Parameters:

context - The relevant DSpace context

label - The label for which the relationshiptype's labels must be checked

Returns:

The list of relationshiptypes that each contain a left or right label that is equal to the given label parameter

Throws:

SQLException - If something goes wrong