Package name.matthewgreet.strutscommons.action

Class AbstractFindListMultiModeActionSupport<M extends Serializable,K extends Serializable,T extends Serializable,F extends Form>

java.lang.Object

org.apache.struts2.ActionSupport

com.opensymphony.xwork2.ActionSupport

name.matthewgreet.strutscommons.action.AbstractActionSupport

name.matthewgreet.strutscommons.action.AbstractFormDrivenActionSupport<F>

name.matthewgreet.strutscommons.action.AbstractFindListMultiModeActionSupport<M,K,T,F>

All Implemented Interfaces:

com.opensymphony.xwork2.Action, com.opensymphony.xwork2.interceptor.ValidationAware, com.opensymphony.xwork2.LocaleProvider, com.opensymphony.xwork2.ModelDriven<F>, com.opensymphony.xwork2.TextProvider, com.opensymphony.xwork2.Validateable, Serializable, BrowserTabAware, BrowserTabAware2, FormDriven<F>, org.apache.struts2.action.Action, org.apache.struts2.action.ServletRequestAware, org.apache.struts2.interceptor.ValidationAware, org.apache.struts2.ModelDriven<F>, org.apache.struts2.Validateable

public abstract class AbstractFindListMultiModeActionSupport<M extends Serializable,K extends Serializable,T extends Serializable,F extends Form>
extends AbstractFormDrivenActionSupport<F>

Template class for creating Command objects that load a list cache in the AbstractCompositeCache by various pagination modes, whether full list, page by id, or page by index.

Concrete subclasses must implement various template functions:-

getFindCommand(M)

Returns a Command object used to load list cache, which can be initialized with an input form received by this Struts action.

getFindListMultiModeConfig()

Returns miscellaneous config, such as whether no records found means an input form rejection.

getListCache()

Returns list cache that stores the retrieved Value Objects.

getMasterListCache()

If the list cache is a slave list, returns master list cache that controls it, otherwise returns null.

M

Record type of master list cache if loading a slave list or Object otherwise.

K

Id type of list cache.

T

Record type of list cache.

F

Struts ActionForm that provides any search form fields or ActionForm if no form is used.

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	AbstractFindListMultiModeActionSupport.FindListMultiModeConfig	Configures list to be loaded by Struts, finder action and whether empty lists means search parameters must be rejected.
static class	AbstractFindListMultiModeActionSupport.FindListMultiModeResponse<M extends Serializable,K extends Serializable,T extends Serializable>

Nested classes/interfaces inherited from interface com.opensymphony.xwork2.interceptor.ValidationAware

com.opensymphony.xwork2.interceptor.ValidationAware.LegacyAdapter

Field Summary

Fields inherited from class org.apache.struts2.ActionSupport

container

Fields inherited from interface org.apache.struts2.action.Action

ERROR, INPUT, LOGIN, NONE, SUCCESS

Constructor Summary

Constructors

Constructor	Description
AbstractFindListMultiModeActionSupport()

Method Summary

Modifier and Type	Method	Description
String	execute()
protected abstract AbstractFindListMultiModeActionSupport.FindListMultiModeResponse<M,K,T>	getFindCommand(M selectedMaster)	Overridden by subclasses to return Command object for retrieving list (configured with any search parameters) and forwarding in the case of success.
protected abstract AbstractFindListMultiModeActionSupport.FindListMultiModeConfig	getFindListMultiModeConfig()	Written by subclasses to configure behaviour of find action.
protected ListCacheRecordComparator<T>	getItemSorter()	Written by subclasses to return item comparator for sorting list after finding it, or null for no post-find sorting.
protected abstract ListCache<M,K,T>	getListCache()	Written by subclasses to return list cache that is being populated.
protected abstract ListCache<?,?,M>	getMasterListCache()	Written by subclasses to return master list cache or null if the list cache is the master list.
protected String	translateFinderException(ListFinder<M,T> listFinderCommand, IdListFinder<M,K> idListFinderCommand, ListSizeFinder<M> listSizeFinderCommand, Exception e)	May be overridden by subclasses to translate an exception thrown by a list finder Command, id list finder Command or list size finder Command into message.

Methods inherited from class name.matthewgreet.strutscommons.action.AbstractFormDrivenActionSupport

formValidationFailed, getForm, getModel, makeForm, setForm, validate

Methods inherited from class name.matthewgreet.strutscommons.action.AbstractActionSupport

getBrowserTabSession, getLogger, getServletRequest, getTabId, setBrowserTabSession, setTabId, withServletRequest

Methods inherited from class org.apache.struts2.ActionSupport

addActionError, addActionMessage, addFieldError, clearActionErrors, clearErrors, clearErrorsAndMessages, clearFieldErrors, clearMessages, clone, getActionErrors, getActionMessages, getContainer, getFieldErrors, getFormatted, getLocale, getLocaleProvider, getText, getText, getText, getText, getText, getText, getText, getText, getText, getTextProvider, getTexts, getTexts, hasActionErrors, hasActionMessages, hasErrors, hasFieldErrors, hasKey, input, isValidLocale, isValidLocaleString, pause, setActionErrors, setActionMessages, setContainer, setFieldErrors, toLocale

Methods inherited from class java.lang.Object

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

Methods inherited from interface name.matthewgreet.strutscommons.action.BrowserTabAware2

copyAttributesFromOldTabToNewTab, handleAttributeFailures

Methods inherited from interface org.apache.struts2.interceptor.ValidationAware

addActionError, addActionMessage, addFieldError, getActionErrors, getActionMessages, getFieldErrors, hasActionErrors, hasActionMessages, hasErrors, hasFieldErrors, setActionErrors, setActionMessages, setFieldErrors

Constructor Details

AbstractFindListMultiModeActionSupport

public AbstractFindListMultiModeActionSupport()

Method Details

getFindCommand

protected abstract AbstractFindListMultiModeActionSupport.FindListMultiModeResponse<M,K,T> getFindCommand(M selectedMaster)
                                                                                                   throws Exception

Overridden by subclasses to return Command object for retrieving list (configured with any search parameters) and forwarding in the case of success.

Parameters:

selectedMaster - Selected record of master list or null if loading master list.

Throws:

Exception

getFindListMultiModeConfig

protected abstract AbstractFindListMultiModeActionSupport.FindListMultiModeConfig getFindListMultiModeConfig()

Written by subclasses to configure behaviour of find action.

getItemSorter

protected ListCacheRecordComparator<T> getItemSorter()

Written by subclasses to return item comparator for sorting list after finding it, or null for no post-find sorting.

getListCache

protected abstract ListCache<M,K,T> getListCache()

Written by subclasses to return list cache that is being populated.

getMasterListCache

protected abstract ListCache<?,?,M> getMasterListCache()

Written by subclasses to return master list cache or null if the list cache is the master list.

translateFinderException

protected String translateFinderException(ListFinder<M,T> listFinderCommand,
 IdListFinder<M,K> idListFinderCommand,
 ListSizeFinder<M> listSizeFinderCommand,
 Exception e)

May be overridden by subclasses to translate an exception thrown by a list finder Command, id list finder Command or list size finder Command into message. May return null to default to a generic error message.

execute

public String execute()
               throws Exception

Specified by:

execute in interface org.apache.struts2.action.Action

Overrides:

execute in class org.apache.struts2.ActionSupport

Throws:

Exception