Package dk.netarkivet.harvester.datamodel.extendedfield

Class ExtendedFieldDBDAO

java.lang.Object

dk.netarkivet.harvester.datamodel.extendedfield.ExtendedFieldDAO

dk.netarkivet.harvester.datamodel.extendedfield.ExtendedFieldDBDAO

All Implemented Interfaces:

DAO

public class ExtendedFieldDBDAO
extends ExtendedFieldDAO

A database-based implementation of the ExtendedFieldDBDAO class.

Field Summary

Fields inherited from class dk.netarkivet.harvester.datamodel.extendedfield.ExtendedFieldDAO

instance

Constructor Summary

Constructors

Constructor	Description
ExtendedFieldDBDAO()	Constructor for the ExtendedFieldDBDAO object.

Method Summary

Modifier and Type	Method	Description
void	create(ExtendedField aExtendedField)	Creates an instance in persistent storage of the given extended Field.
void	delete(long aExtendedfieldId)	deletes an ExtendedField from persistent storage.
boolean	exists(Long aExtendedfieldId)	Check whether a particular extended Field exists.
List<ExtendedField>	getAll(long aExtendedFieldTypeId)	Return a list of all ExtendedFields of the given Extended Field Type.
ExtendedField	read(Long aExtendedfieldId)	Reads an ExtendedField from persistent storage.
void	update(ExtendedField aExtendedField)	Update a ExtendedField in persistent storage.

Methods inherited from class dk.netarkivet.harvester.datamodel.extendedfield.ExtendedFieldDAO

getInstance, reset

Methods inherited from class java.lang.Object

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

Constructor Detail

ExtendedFieldDBDAO

public ExtendedFieldDBDAO()

Constructor for the ExtendedFieldDBDAO object.

Method Detail

create

public void create(ExtendedField aExtendedField)

Description copied from class: ExtendedFieldDAO

Creates an instance in persistent storage of the given extended Field.

Specified by:

create in class ExtendedFieldDAO

Parameters:

aExtendedField - a ExtendedField to create in persistent storage.

exists

public boolean exists(Long aExtendedfieldId)

Check whether a particular extended Field exists.

Specified by:

exists in class ExtendedFieldDAO

Parameters:

aExtendedfieldId - Id of the extended field.

Returns:

true if the extended field exists.

update

public void update(ExtendedField aExtendedField)

Description copied from class: ExtendedFieldDAO

Update a ExtendedField in persistent storage.

Specified by:

update in class ExtendedFieldDAO

Parameters:

aExtendedField - The ExtendedField to update

read

public ExtendedField read(Long aExtendedfieldId)

Description copied from class: ExtendedFieldDAO

Reads an ExtendedField from persistent storage.

Specified by:

read in class ExtendedFieldDAO

Parameters:

aExtendedfieldId - The ID of the ExtendedField to read

Returns:

a ExtendedField instance

getAll

public List<ExtendedField> getAll(long aExtendedFieldTypeId)

Description copied from class: ExtendedFieldDAO

Return a list of all ExtendedFields of the given Extended Field Type.

Specified by:

getAll in class ExtendedFieldDAO

Parameters:

aExtendedFieldTypeId - extended field type.

Returns:

A list of all ExtendedFields with given Extended Field Type

delete

public void delete(long aExtendedfieldId)
            throws IOFailure

Description copied from class: ExtendedFieldDAO

deletes an ExtendedField from persistent storage. The implementation of this method must also delete all belonging extended field values.

Specified by:

delete in class ExtendedFieldDAO

Parameters:

aExtendedfieldId - The ID of the ExtendedField to read

Throws:

IOFailure - If deleting the ExtendedField fails