dk.netarkivet.harvester.datamodel
Class ExtendedFieldDBDAO

java.lang.Object
  dk.netarkivet.harvester.datamodel.ExtendedFieldDAO
      dk.netarkivet.harvester.datamodel.ExtendedFieldDBDAO

public class ExtendedFieldDBDAO
extends ExtendedFieldDAO

A database-based implementation of the ExtendedFieldDBDAO class.

Field Summary

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

instance

Constructor Summary

protected

ExtendedFieldDBDAO()

Method Summary

void	create(ExtendedField aExtendedField) Creates an instance in persistent storage of the given extended Field.
void	delete(long aExtendedfield_id) deletes an ExtendedField from persistent storage.
boolean	exists(java.lang.Long aExtendedfield_id) Check whether a particular extended Field exists.
java.util.List<ExtendedField>	getAll(long aExtendedFieldType_id) Return a list of all ExtendedFields of the given Extended Field Type
protected java.sql.Connection	getConnection() Gets the ExtendedFieldDAO singleton.
static ExtendedFieldDAO	getInstance()
ExtendedField	read(java.lang.Long aExtendedfield_id) Reads an ExtendedField from persistent storage.
void	update(ExtendedField aExtendedField) Update a ExtendedField in persistent storage.

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

reset

Methods inherited from class java.lang.Object

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

Constructor Detail

ExtendedFieldDBDAO

protected ExtendedFieldDBDAO()

Method Detail

getConnection

protected java.sql.Connection getConnection()

Description copied from class: ExtendedFieldDAO

Gets the ExtendedFieldDAO singleton.

Specified by:

getConnection in class ExtendedFieldDAO

Returns:

the ExtendedFieldDAO singleton

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(java.lang.Long aExtendedfield_id)

Check whether a particular extended Field exists.

Specified by:

exists in class ExtendedFieldDAO

Parameters:

aExtendedfield_id - 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(java.lang.Long aExtendedfield_id)

Description copied from class: ExtendedFieldDAO

Reads an ExtendedField from persistent storage.

Specified by:

read in class ExtendedFieldDAO

Parameters:

aExtendedfield_id - The ID of the ExtendedField to read

Returns:

a ExtendedField instance

getAll

public java.util.List<ExtendedField> getAll(long aExtendedFieldType_id)

Description copied from class: ExtendedFieldDAO

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

Specified by:

getAll in class ExtendedFieldDAO

Parameters:

aExtendedFieldType_id - extended field type.

Returns:

A list of all ExtendedFields with given Extended Field Type

delete

public void delete(long aExtendedfield_id)
            throws IOFailure

Description copied from class: ExtendedFieldDAO

deletes an ExtendedField from persistent storage.

Specified by:

delete in class ExtendedFieldDAO

Throws:

IOFailure

getInstance

public static ExtendedFieldDAO getInstance()