Package org.javlo.helper

Class LangHelper

java.lang.Object

org.javlo.helper.LangHelper

public class LangHelper
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	LangHelper.ListBuilder
static class	LangHelper.MapEntry
static class	LangHelper.ObjectBuilder

Constructor Summary

Constructors

Constructor	Description
LangHelper()

Method Summary

Modifier and Type	Method	Description
static Object	arrays(Object[] arrays, int i, Object defaultValue)	save access to array.
static boolean	asFirst(List list, Object item)	put item as first of a list
static <T> void	clearWeekReferenceCollection(Collection<WeakReference<T>> col)
static <K,T> void	clearWeekReferenceMap(Map<K,WeakReference<T>> map)
static Map<?,?>	collectionToMap(Collection<?> col)
static Integer	compareNull(Object obj1, Object obj2)	compare two objects with one of them null.
static <E> List<E>	createList(E... items)
static LangHelper.MapEntry	entry(String key, Object value)
static <E> List<E>	getModifiableList(List<E> list)
static boolean	isTrue(Object obj)
static LangHelper.ListBuilder	list()
static void	main(String[] args)
static Map<String,Object>	obj(LangHelper.MapEntry... props)
static LangHelper.ObjectBuilder	object()
static Map<String,String>	objStr(LangHelper.MapEntry... props)
static void	putAllIfNotExist(Map map1, Map map2)
static Object	smartInstance(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, Class c)	return the instance of a class.
static int	unsigned(byte b)

Methods inherited from class java.lang.Object

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

Constructor Detail

LangHelper

public LangHelper()

Method Detail

smartInstance

public static Object smartInstance(javax.servlet.http.HttpServletRequest request,
                                   javax.servlet.http.HttpServletResponse response,
                                   Class c)
                            throws Exception

return the instance of a class.

Returns:

list of class returned :

• HttpServletRequest
• HttpServletResponse
• HttpSession
• ServletContext
• StaticConfig
• ContentContext
• GlobalContext
• I18nAccess
• RequestService
• EditContext
• ContentService
• ComponentContext
• MenuElement : return the current page.
• UserFactory
• AdminUserFactory
• AdminUserSecurity
• PageConfiguration
• ModuleContext
• Module : current module.
• MessageRepository
• FileCache
• StaticContext
• UserInterfaceContext
• ClipBoard
• PersistenceService
• User
• AbstractModuleContext : return the current module context
• ? extends AbstractModuleContext : instanciate a abstract module
>
• String : the query parameter (when user make a search)
• NotificationService
• SharedContentService

Throws:

Exception

entry

public static LangHelper.MapEntry entry(String key,
                                        Object value)

obj

public static Map<String,Object> obj(LangHelper.MapEntry... props)

objStr

public static Map<String,String> objStr(LangHelper.MapEntry... props)

putAllIfNotExist

public static void putAllIfNotExist(Map map1,
                                    Map map2)

object

public static LangHelper.ObjectBuilder object()

list

public static LangHelper.ListBuilder list()

unsigned

public static final int unsigned(byte b)

arrays

public static Object arrays(Object[] arrays,
                            int i,
                            Object defaultValue)

save access to array.

Parameters:

arrays -

i - index.

defaultValue -

Returns:

default value if array is smaller than index.

collectionToMap

public static Map<?,?> collectionToMap(Collection<?> col)

asFirst

public static boolean asFirst(List list,
                              Object item)

put item as first of a list

Parameters:

list -

item -

Returns:

false if item not found in list.

main

public static void main(String[] args)

clearWeekReferenceCollection

public static <T> void clearWeekReferenceCollection(Collection<WeakReference<T>> col)

clearWeekReferenceMap

public static <K,T> void clearWeekReferenceMap(Map<K,WeakReference<T>> map)

getModifiableList

public static <E> List<E> getModifiableList(List<E> list)

createList

public static <E> List<E> createList(E... items)

compareNull

public static Integer compareNull(Object obj1,
                                  Object obj2)

compare two objects with one of them null.

Parameters:

obj1 -

obj2 -

Returns:

null if two objects != null

isTrue

public static boolean isTrue(Object obj)