net.sf.basedb.plugins.batchimport
Class FallbackIdMethod

java.lang.Object
  net.sf.basedb.plugins.batchimport.FallbackIdMethod

All Implemented Interfaces:

IdMethod

public class FallbackIdMethod
extends Object
implements IdMethod

Identification method implementation that first tries a parent id method, and, if no item is found and the identifier is a number, tries to load the item by id.

Version:

2.8

Author:

nicklas

Last modified

$Date: 2008-09-11 22:06:36 +0200 (Thu, 11 Sep 2008) $

Field Summary

private String	method
static FallbackIdMethod	NAME_OR_BARCODE_OR_ID
static FallbackIdMethod	NAME_OR_EXTERNALID_OR_ID
static FallbackIdMethod	NAME_OR_ID Use the name for finding items.
private IdMethod	parent
private String	title

Constructor Summary

FallbackIdMethod(String method, String title, IdMethod parent)
Create a new id method.

Method Summary

<I extends BasicItem> List<I>	find(DbControl dc, ItemQuery<I> query, String identifier) First, find items using the parent id method.
String	getColumnMappingParameterName()
String	getMethod() The name of this method, which should be unique among the methods that can be used at a given time.
String	getTitle() The display title of the method.
boolean	isTrulyUnique() If the identification method is truly unique or not.
<I extends BasicItem> ItemQuery<I>	prepareQuery(DbControl dc, ItemQuery<I> query) Adds a restriction to the query: property = :identifier
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

NAME_OR_ID

public static final FallbackIdMethod NAME_OR_ID

Use the name for finding items. If no item is found and the identifier is numerical, try loading it by ID.

NAME_OR_EXTERNALID_OR_ID

public static final FallbackIdMethod NAME_OR_EXTERNALID_OR_ID

NAME_OR_BARCODE_OR_ID

public static final FallbackIdMethod NAME_OR_BARCODE_OR_ID

method

private final String method

title

private final String title

parent

private final IdMethod parent

Constructor Detail

FallbackIdMethod

public FallbackIdMethod(String method,
                        String title,
                        IdMethod parent)

Create a new id method.

Parameters:

method - The method name, which should be unique among all methods

title - The title to use for display purposes

parent - The parent id method, which will be tried first

Method Detail

getMethod

public String getMethod()

Description copied from interface: IdMethod

The name of this method, which should be unique among the methods that can be used at a given time.

Specified by:

getMethod in interface IdMethod

Returns:

The method name

getTitle

public String getTitle()

Description copied from interface: IdMethod

The display title of the method.

Specified by:

getTitle in interface IdMethod

isTrulyUnique

public boolean isTrulyUnique()

Description copied from interface: IdMethod

If the identification method is truly unique or not. If this method returns true, the IdMethod.find(DbControl, ItemQuery, String) method will never ever return a list with more than one item.

Specified by:

isTrulyUnique in interface IdMethod

getColumnMappingParameterName

public String getColumnMappingParameterName()

Specified by:

getColumnMappingParameterName in interface IdMethod

prepareQuery

public <I extends BasicItem> ItemQuery<I> prepareQuery(DbControl dc,
                                                       ItemQuery<I> query)

Adds a restriction to the query: property = :identifier

Specified by:

prepareQuery in interface IdMethod

query - The query to prepare

Returns:

The query that is used for item lookup

find

public <I extends BasicItem> List<I> find(DbControl dc,
                                          ItemQuery<I> query,
                                          String identifier)

First, find items using the parent id method. If no items is found with this, try to convert the identifier to a number and use getById() to load the item.

Specified by:

find in interface IdMethod

query - The query to use, which should have been prepared using IdMethod.prepareQuery(DbControl, ItemQuery)

identifier - The identifier of the item

Returns:

A list with the found items, if IdMethod.isTrulyUnique() return true the list is guaranteed to have at most one item

toString

public String toString()

Overrides:

toString in class Object