Package org.mmbase.util

This package contains all kind of generic utilities.

See: Description

Interface Summary

Interface	Description
Caster
Casting.Unwrappable	Clases implementing this will not be wrapped by Casting.wrap(java.lang.Object, org.mmbase.util.transformers.CharTransformer), even if the e.g.
CloseableIterator<E>	An iterator which may need closing (e.g.
PublicCloneable<C>	The java interface Cloneable has no public methods.
SizeMeasurable	The SizeOf class tries to determine the size of memory structures.

Class Summary

Class	Description
ApplicationContextReader
BasicCaster
BijectiveMap<K,V>	A map representing a 1-1 bijective relation between 2 sets of values.
Casting	Collects MMBase specific 'cast' information, as static to...
Casting.ListWrapper
Casting.StringSerializableInputStream	A SerializableInputStream where the toString represents the (escaped) contents of the stream itself.
Casting.StringWrapper	Wraps a String with an 'Escaper'.
ChainedComparator<E>	Straight forward utility to chain several comparators into a new one.
ChainedIterator<E>	Like org.apache.commons.collections.iterators.IteratorChain, to avoid the dependency....
ChainedList<E>	Simple utility to chain several lists into a new one.
ChainedOutputStream	Like unix' 'tee'.
ChainedRunnable
ChainedWriter	Like unix' 'tee'.
CSVReader	Reads Comma Separated Values (CSV).
DateFormats	Utility function to create DateFormat instances.
DateFormats.DayOfWeekDateFormat	There is no DateFormat which can return the day of the week as a number available in java.text package.
DijkstraSemaphore	Also called counting semaphores, Dijkstra semaphores are used to control access to a set of resources.
DynamicDate	A DynamicDate is a Date object that has no fixed value, like 'now'.
Encode	Class to convert from/to a string (byte[]) from/to a encoded string (byte[]) Supported encodings are at this moment: BASE64 HEX ESCAPE_XML ESCAPE_HTML ESCAPE_HTML_ATTRIBUTE ESCAPE_WML ESCAPE_WML_ATTRIBUTE ESCAPE_URL ESCAPE_URL_PARAM ESCAPE_SINGLE_QUOTE A list of supported encodings can be gotten by java org.mmbase.util.Encode, and you add your own encodings by calling the static function 'register' of this class.
EncodingDetectingOutputStreamWriter	Like OutputStreamWriter but it tries to autodetect the encoding of the OutputStream.
Entry<K,V>	Represents a pair of values ('key' and a 'value').
Escape	Deprecated Use org.mmbase.util.Encode
ExprCalc	Class to calculate expressions.
ExtendedProperties	Deprecated
FileWatcher	Original javadoc.
FileWatcher.FileWatcherRunner	The one thread to handle all FileWatchers.
GenericResponseWrapper	Wrapper around the response.
HashCodeUtil	http://www.macchiato.com/columns/Durable6.html Hash Collections (HashSet, HashMap, Hashtable, etc) are typically implemented with an array of buckets.
IECompatibleJpegInputStream	IECompatibleJpegInputStream removes additional information left by PhotoShop 7 in jpegs , this information may crash Internet Exploder.
IOUtil	Various utils to concisely and efficiently deal with streams
LinkMap<K,V>	Combines two Maps into one new map.
LocaleCollator	This class wraps a Collator and associates it with a Locale.
LocaleLocalizedString	This LocalizedString also has a method LocaleLocalizedString.setLocale(java.util.Locale) which defines its own default locale for LocaleLocalizedString.get(Locale) in case it is called as get(null).
LocalHttpServletRequest	This class (and LocalHttpServletResponse, and super classes) can be used to do requests on the current MMBase without having an actual client, which can be useful in cronjobs or so.
LocalHttpServletResponse
LocalizedString	A String which is localized.
LocalizedString.DefaultFromServletContext
LocalServletRequest
LocalServletResponse
LRUHashtable<K,V>	Deprecated use LRUCache
MimeType	Representation of a 'mimetype' (or Internet media type).
MMBaseContext	Using MMBaseContext class you can retrieve the servletContext from anywhere using the get method.
MockInputStream
MultiPartFormOutputStream	MultiPartFormOutputStream is used to write "multipart/form-data" to a java.net.URLConnection for POSTing.
MyServletOutputStream	Implements ServletOutputStream.
NullInputStream	An input stream only producing zeros.
PasswordGenerator	Module for the automatic generation of passwords.
RandomInputStream	An input stream only producing random bytes.
RandomPool	Class for holding a pool of random numbers.
ReaderInputStream	Oddly enough, Java does not provide this itself.
ReadonlyLocalizedString	Extends and wraps LocalizedString, to make it readonly
RelativeTime	This util class contains several methods and constants to manipulate relative time values.
ReplacingLocalizedString	Extends and wraps LocalizedString.
ResourceLoader	MMBase resource loader, for loading configuration files and those kind of things.
ResourceLoader.AbstractFileURLStreamHandler
ResourceLoader.ApplicationContextFileURLStreamHandler
ResourceLoader.ApplicationContextFileURLStreamHandlerFactory
ResourceLoader.ClassesFileURLStreamHandlerFactory
ResourceLoader.ClassLoaderURLStreamHandler
ResourceLoader.ConfigClassLoaderURLStreamHandlerFactory
ResourceLoader.ConfigServletResourceURLStreamHandlerFactory
ResourceLoader.FileURLStreamHandler
ResourceLoader.FullyClassifiedClassLoaderURLStreamHandlerFactory
ResourceLoader.MMBaseConfigSettingFileURLStreamHandlerFactory
ResourceLoader.PathURLStreamHandler	Extension URLStreamHandler, used for the 'sub' Handlers, entries of 'roots' in ResourceLoader are of this type.
ResourceLoader.ServletContextInit
ResourceLoader.ServletResourceURLStreamHandler	URLStreamHandler based on the servletContext object of ResourceLoader
ResourceLoader.URLStreamHandlerFactory
ResourceWatcher	Like FileWatcher but for Resources.
ReverseComparator	The comparator which sorts Comparable on the inverse natural order.
SerializableInputStream	Sometimes you need an InputStream to be Serializable.
SizeOf	Implementation of 'sizeof'.
SortedBundle	A bit like ResourceBundle (on which it is based), but it creates SortedMap's.
SortedBundle.ValueWrapper	You can specify ValueWrapper.class as a value for the wrapper argument.
SPartFileFilter	Support utility for MMObjectBuilder.getSMartPath This filter filters files with the specified number in its name.
SqlExecutor	Generic tool to execute some SQL
StringBufferWriter	Oddly enough, Java does not provide this itself.
StringBuilderWriter	Oddly enough, Java does not provide this itself.
StringObject	Deprecated Use StringBuilder
StringSplitter	Utility class for splitting delimited values.
StringTagger	StringTagger, Creates a object with tags and fields from a String.
Strip	Class to strip characters from the beginning and end of strings.
ThreadPools	Generic MMBase Thread Pools
UriParser	For an important part stolen from jakarta vfs (only one function).
WrappedLocalizedString	Extends and wraps LocalizedString.
WriterOutputStream	Oddly enough, Java does not provide this itself.
XSLTransformer	Make XSL Transformations

Enum Summary

Enum	Description
LinkMap.Changes	Enum for the parameter of the constructor LinkMap.LinkMap(Map, Map, LinkMap.Changes)
LocaleCollator.Decomposition	An enum wrapping the 'decomposition' related constants of Collator.
LocaleCollator.Strength	An enum wrapping the 'strength' related constants of Collator.
ResourceLoader.Type	The available ResourceLoaders wrapped into an enum, which makes them available dynamicly (with ResourceLoader.Type.valueOf(string).get())

Exception Summary

Exception	Description
Caster.NotRecognized

Package org.mmbase.util Description

This package contains all kind of generic utilities. It is a bit like java.util. Collections related stuff like BijectiveMap or related to IO like IOUtil. Noticeable in the package are MMBaseContext which maintains some information in a few static variables which are sometimes needed. E.g. the ServletContext with MMBaseContext.getServletContext() and the data directory with MMBaseContext.getDataDir(). Other important ones are Casting, which implements all kind of casting between types, and ResourceLoader, which is used to open resources using a fall back mechanism. There are used in many places in MMBase.