Package org.dspace.content

Class MetadataValueServiceImpl

java.lang.Object

org.dspace.content.MetadataValueServiceImpl

All Implemented Interfaces:

MetadataValueService

public class MetadataValueServiceImpl
extends Object
implements MetadataValueService

Service implementation for the MetadataValue object. This class is responsible for all business logic calls for the MetadataValue object and is autowired by spring. This class should never be accessed directly.

Author:

kevinvandevelde at atmire.com

Field Summary

Fields

Modifier and Type	Field	Description
protected AuthorizeService	authorizeService
protected ContentServiceFactory	contentServiceFactory
protected MetadataValueDAO	metadataValueDAO

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	MetadataValueServiceImpl()

Method Summary

Modifier and Type	Method	Description
int	countTotal(Context context)
MetadataValue	create(Context context, DSpaceObject dso, MetadataField metadataField)	Creates a new metadata value.
void	delete(Context context, MetadataValue metadataValue)	Delete the metadata field.
void	deleteByMetadataField(Context context, MetadataField metadataField)
MetadataValue	find(Context context, int valueId)	Retrieves the metadata value from the database.
List<MetadataValue>	findByField(Context context, MetadataField metadataField)	Retrieves the metadata values for a given field from the database.
Iterator<MetadataValue>	findByFieldAndValue(Context context, MetadataField metadataField, String value)	Retrieves matching MetadataValues for a given field and value.
Iterator<MetadataValue>	findByValueLike(Context context, String value)
MetadataValue	getMinimum(Context context, int metadataFieldId)	Get the minimum value of a given metadata field across all objects.
void	update(Context context, MetadataValue metadataValue)	Update the metadata value in the database.
void	update(Context context, MetadataValue metadataValue, boolean updateLastModified)

Methods inherited from class java.lang.Object

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

Field Details

authorizeService

@Autowired(required=true)
protected AuthorizeService authorizeService

metadataValueDAO

@Autowired(required=true)
protected MetadataValueDAO metadataValueDAO

contentServiceFactory

@Autowired(required=true)
protected ContentServiceFactory contentServiceFactory

Constructor Details

MetadataValueServiceImpl

protected MetadataValueServiceImpl()

Method Details

create

public MetadataValue create(Context context,
 DSpaceObject dso,
 MetadataField metadataField)
                     throws SQLException

Description copied from interface: MetadataValueService

Creates a new metadata value.

Specified by:

create in interface MetadataValueService

Parameters:

context - DSpace context object

dso - DSpaceObject

metadataField - metadata field

Returns:

new MetadataValue

Throws:

SQLException - if database error

find

public MetadataValue find(Context context,
 int valueId)
                   throws IOException,
SQLException

Description copied from interface: MetadataValueService

Retrieves the metadata value from the database.

Specified by:

find in interface MetadataValueService

Parameters:

context - dspace context

valueId - database key id of value

Returns:

recalled metadata value

Throws:

IOException - if IO error

SQLException - if database error

findByField

public List<MetadataValue> findByField(Context context,
 MetadataField metadataField)
                                throws IOException,
SQLException

Description copied from interface: MetadataValueService

Retrieves the metadata values for a given field from the database.

Specified by:

findByField in interface MetadataValueService

Parameters:

context - dspace context

metadataField - metadata field whose values to look for

Returns:

a collection of metadata values

Throws:

IOException - if IO error

SQLException - if database error

findByFieldAndValue

public Iterator<MetadataValue> findByFieldAndValue(Context context,
 MetadataField metadataField,
 String value)
                                            throws SQLException

Description copied from interface: MetadataValueService

Retrieves matching MetadataValues for a given field and value.

Specified by:

findByFieldAndValue in interface MetadataValueService

Parameters:

context - dspace context

metadataField - The field that must match

value - The value that must match

Returns:

the matching MetadataValues

Throws:

SQLException - if database error

update

public void update(Context context,
 MetadataValue metadataValue)
            throws SQLException

Description copied from interface: MetadataValueService

Update the metadata value in the database.

Specified by:

update in interface MetadataValueService

Parameters:

context - dspace context

metadataValue - metadata value

Throws:

SQLException - if database error

update

public void update(Context context,
 MetadataValue metadataValue,
 boolean updateLastModified)
            throws SQLException,
AuthorizeException

Specified by:

update in interface MetadataValueService

Throws:

SQLException

AuthorizeException

delete

public void delete(Context context,
 MetadataValue metadataValue)
            throws SQLException

Description copied from interface: MetadataValueService

Delete the metadata field.

Specified by:

delete in interface MetadataValueService

Parameters:

context - dspace context

metadataValue - metadata value

Throws:

SQLException - if database error

findByValueLike

public Iterator<MetadataValue> findByValueLike(Context context,
 String value)
                                        throws SQLException

Specified by:

findByValueLike in interface MetadataValueService

Throws:

SQLException

deleteByMetadataField

public void deleteByMetadataField(Context context,
 MetadataField metadataField)
                           throws SQLException

Specified by:

deleteByMetadataField in interface MetadataValueService

Throws:

SQLException

getMinimum

public MetadataValue getMinimum(Context context,
 int metadataFieldId)
                         throws SQLException

Description copied from interface: MetadataValueService

Get the minimum value of a given metadata field across all objects.

Specified by:

getMinimum in interface MetadataValueService

Parameters:

context - dspace context

metadataFieldId - unique identifier of the interesting field.

Returns:

the minimum value of the metadata field

Throws:

SQLException - if database error

countTotal

public int countTotal(Context context)
               throws SQLException

Specified by:

countTotal in interface MetadataValueService

Throws:

SQLException