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	Object lifetime - Wikipedia, the free encyclopedia
		In computer science, the object lifetime (or life cycle) of an object in object-oriented programming is the time between an object's creation (also known as instantiation or construction) till the object is no longer used, and is destructed or freed.
		Handling exceptions in the midst of creation of an object is particularly problematic because usually the implementation of throwing exceptions relies on valid object states.
		The abstract factory pattern is a way to decouple a particular implementation of an object from code for the creation of such a object.
	en.wikipedia.org /wiki/Object_creation (1026 words)

	Object - Encyclopedia.WorldSearch (Site not responding. Last check: 2007-10-22)
		Etymology: The word object comes from the latin word objectum a noun form of objectus which in turn comes from objicere, which means to throw or put something before someone.
		An object is a language supported mechanism for binding data tightly with methods that operate on that data.
		Object or objection, an act where an attorney in a trial protests an act or evidence by the opposing side or their representation that violates the rules of the court.
	encyclopedia.worldsearch.com /object.htm (382 words)

	Object lifetime -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-22)
		Handing (Grounds for adverse criticism) exceptions in the midst of creation of an object is particularly problematic because usually the implentation of throwing exceptions relies on valid object states.
		However, in object oriented programming, object construction may always fail, because constructing an object should establish the ((biology) a taxonomic group containing one or more orders) class invariants, which are often not valid for every combination of constructor arguments.
		A copy constructor is a constructor which takes a (single) parameter of an existing object of the same type as the constructor's class, and returns a (Click link for more info and facts about deep copy) deep copy of the object sent as a parameter.
	www.absoluteastronomy.com /encyclopedia/o/ob/object_lifetime.htm (898 words)

	J2ME : MicroDevNet : Reduce, Reuse and Recycle: Reusing Objects - Part II
		In Part I of this article, we investigated the "cost" of object creation and were able to challenge some of the prevailing opinions.
		Object Pool: We implemented a very simple object pool that allowed us to initialize a number of Objects on start-up, which could then be drawn from or returned to the pool as required.
		You either create a new object every time a message is received, with an array that is the exact size required by the message or you can implement an object pool.
	www.microjava.com /articles/techtalk/recylcle2 (1471 words)

	ipedia.com: Object (object-oriented programming) Article (Site not responding. Last check: 2007-10-22)
		A class is to an object as a blueprint is to a house.
		An object belonging to a class is referred to as an instance of the class.
		Object identity is sometimes realized in programming languages by the location of the object in the computer's memory, and the operations with which references to this location are manipulated.
	www.ipedia.com /object__object_oriented_programming_.html (537 words)

	Java Performance Tuning: Chapter 4: Object Creation
		If you canonicalize a changeable object and then change its state, then all objects that have a reference to the canonicalized object are still pointing to that object, but with the object's new state.
		If the creation time has been identified as a bottleneck, it is possible that you can still create the objects, but move the creation time to a part of the application when more spare cycles are available or there is more flexibility in response times.
		Create objects early, when there is spare time in the application, and hold those objects until required.
	www.oreilly.com /catalog/javapt/chapter/ch04.html (7245 words)

	Object Creation (Site not responding. Last check: 2007-10-22)
		Objects in Java are allocated from memory, ie.
		The new operator allocates memory for an Object's instance variables and invokes the Object's constructor.
		Now than we discussed what classes and objects are we are ready to examine the relationships between classes.
	www.ao.net /~juang/IntroJava/JavaObjects/Lect02.html (559 words)

	NOVELL: Cool Solutions: Troubleshooting Slow Object Creation
		We are working on a project where we are seeing object creation take as long as 44 seconds -- with average of about 16 seconds.
		A second test would be to create users via C1 w/ passwords and use DSBROWSE to check the timing of creation, that would eliminate LDAP from the equation entirely.
		If the creation is immediate on the local box (C1 doesn't freeze for 44 seconds when you attempt to create the user, and DSBrowse shows immediate results), then check for a slow ds sync problem between the boxes by using DSBrowse on the other replica holders to see when the object shows up.
	www.novell.com /coolsolutions/trench/5682.html (273 words)

	"Developer's Guide": Using Object Pools (Site not responding. Last check: 2007-10-22)
		An object pool is a set of limited resources, such as connections, that can be reserved for use by clients and then returned to the pool (for probable reuse) when the object is no longer needed.
		Without object pooling, whenever a client of an extension (typically an application) requests an object, a physical object is created and destroyed when no longer needed.
		Instead, to preserve the pooled object for use by ResultSet, it's necessary to bind the reservation lifetime of the pooled object to the lifetime of the ResultSet object.
	docs.sun.com /source/816-6116-10/exobpool.htm (6248 words)

	Object lifetime
		In object-oriented programming, the meaning of creating objects is far more subtle than simple allocating of spaces for variables.
		Handing exceptions in the midst of creation of an object is particularly problematic because usually the implentation of throwing exceptions relies on valid object states.
		The abstract factory pattern is a way to decoupe a particular implementation of an object from code for the creation of such a object.
	www.brainyencyclopedia.com /encyclopedia/o/ob/object_lifetime.html (1085 words)

	FMS Technical Papers - DAO Advanced Programming
		Most object types have a collection that acts as a holder for all the objects of that specific type.
		This is a powerful feature that allows you to create queries on the fly, execute them, and not have to worry about deleting them from the database when you are done with them.
		Because of this, transactions are global to the Workspace object, not to a specific database or recordset.
	www.fmsinc.com /tpapers/dao (2780 words)

	Design for performance, Part 2: Reduce object creation
		Temporary objects are those that have a short lifetime and generally serve no useful purpose other than to act as containers for other data.
		Part 1 explored how temporary object creations could have a serious negative impact on a program's performance and showed how certain class interface design decisions virtually guarantee temporary object creation.
		On the other hand, a reference to an immutable object can be freely shared without having to worry that the referenced object will be modified, which can offer a performance advantage over mutable objects, as the next section illustrates.
	www.javaworld.com /javaworld/jw-02-2001/jw-0223-performance.html (1002 words)

	WDVL: CREATING THE BASIC DOCUMENT OBJECT CREATION SCRIPT (DOCOBJ.JS) - Page 6
		In this section we'll create a document object construction script, which is a slight variation on the one we have used in the previous JavaScript projects.
		The advantage of putting the document object constructors into functions is that it modularizes your code and reduces the typing you have to do when defining other functions.
		The document object text string for Netscape 4.x is not really needed for this project because none of the JavaScript functions that follow are intended to work in that browser.
	www.wdvl.com /Authoring/JavaScript/JS_CSS_DOM/JS_CSS_DOM2_1.html (727 words)

	Object Creation Overview
		To elucidate the object creation process, this article describes the steps taken by the OLE 2.0 libraries in response to a call to OleCreate(), with the OLERENDER_DRAW format passed as the renderopt parameter.
		These object types are enumerated from the Registration Database--each entry in the database has a name that the user can understand, as well as a unique identifier for the object type called a CLSID.
		Every time the user makes a change to the object, the object calls OLE through the advise holder to notify the libraries that the view has been changed.
	support.microsoft.com /support/kb/articles/q104/1/39.asp (815 words)

	5: Factories: encapsulating object creation (Site not responding. Last check: 2007-10-22)
		Thus, if the code that creates objects is distributed throughout your application, you have the same problem when adding new types—you must still chase down all the points of your code where type matters.
		The solution is to force the creation of objects to occur through a common factory rather than to allow the creational code to be spread throughout your system.
		The factory is immediately used to create the shape object, but you could imagine a more complex problem where the appropriate factory object is returned and then used by the caller to create an object in a more sophisticated way.
	www.gae.ucm.es /~fonta/ThinkingInPattersWithJava/Chapter05.html (1295 words)

	Hank FAQ - Object Creation
		Visual objects are generally derived from the PerceivableObject class and non-visual objects (things that cannot be seen in the simulation) are derived from the HankObject class.
		There are several reasons for the structure of the object creation code in Hank, but the primary reason is that the new operator will instance the object immediately, and in turn, the classes the object was derived from will also be created.
		However, if the object is inserted into the list in the middle of a critical occupancy computation, the resulting simulation may turn out differently than if the object was inserted at some other time.
	www.math.uiowa.edu /~hank/workshed/faq_objectcreation.html (1424 words)

	Object creation
		An object is an instance of a class.
		The name is NOT unique: the last object created is the owner of its name.
		Define any attributes of the object it needs at Init time, including its children, if any; a children is always specified with a name; if a child doesn't already exist (it was not already created somewhere) it is created at its parent creation time
	www.alfie.altervista.org /rxmui/rxmuidoc/object_creation.html (675 words)

	Crystal Space 3D - Community Page : Creating a CStudio Object Creation Plugin (Site not responding. Last check: 2007-10-22)
		Object Creation Plugin Instances are not persistant from invocation to invocation
		Note that you cannot create modeless windows that way that should remain longer than the actual creation of the object.
		That way when creating the action you first initialize it with the csi, query it for your own interface and supply the data.
	community.crystalspace3d.org /tiki-read_article.php?articleId=19 (634 words)

	object creation (Site not responding. Last check: 2007-10-22)
		Schedule) is an special factory object that selects a class to implement the created object based on optional "set" messages between createBegin: and createEnd messages.
		The Swarm kernel libraries defobjc, collections, and activity libraries separate the definition of object "type", defined strictly by interface definitions coded as Objective C protocols, vs. classes which implement these interfaces in various possible ways, and which are hidden entirely from the interface caller.
		During initialization, the object you send the message to (Schedule) is set to one of these "CreateBy" factory objects initalized with default options.
	www.swarm.org /pipermail/support/1996-January/000134.html (313 words)

	Active Worlds RenderWare® Object Creation - Files (Site not responding. Last check: 2007-10-22)
		Creating RenderWare objects was very irritating to me at first and all I had (and still use, for the most part) was a text editor (I like UltraEdit the best) and viewer.
		This is, usually, a much easier (and intuitive) way of creating a model because it is done in real-time without the need for constant opening in a separate viewer after a modification has been made, for instance.
		Modeler: Modeler was originally created by Tony Polichroniadis written as a final-year college project when studying for his BSC hons at Leeds University around 1995.
	www.tnlc.com /rw/files.html (4295 words)

	6.1.2 File Object Creation
		The return value is an open file object connected to the pipe, which can be read or written depending on whether
		method of the file object, except that when the exit status is zero (termination without errors),
		The file has no directory entries associated with it and will be automatically deleted once there are no file descriptors for the file.
	www.python.org /doc/current/lib/os-newstreams.html (333 words)

	Design for performance, Part 2: Reduce object creation - JavaWorld February 2001
		returned an object rather than a primitive type -- but just because a method returns an object, doesn't mean that a new object must be created.
		The downside of using that technique is that your objects now have more methods and more than one way to retrieve the same information, which makes the documentation larger and more complicated, and may discourage users.
		You can effectively employ the techniques provided here to reduce temporary object creation when you design classes that are likely to be used in performance-critical situations.
	java.sun.com /developer/technicalArticles/Programming/classperformance (1586 words)

	Ruby Object Creation (Site not responding. Last check: 2007-10-22)
		Object creation is Ruby is straightforward, but slightly different than Java's way of doing things.
		When a class object receives new, it allocates a new object of its type and invokes the initialize method on that object.
		That's an important distinction, new is a class method (sent to a class object) and initialize is an instance object (sent to an instance of a class).
	onestepback.org /articles/tdddemo/rubyobjectcreation.html (163 words)

	Object Creation
		There are several different types of objects available to be made.
		With all of these particular objects, you're playing with fire.
		With pills, you have the option to add up to 4 different spells to the object.
	www.geocities.com /EnchantedForest/Glade/1756/MUD/olc/object.html (904 words)

	::: LiveMotionCentral ::: LM1 - Object Creation: Text, Basic Shapes
		To create the object click on the Object Button on the Tool Palette then click on the canvas and drag until you get the size you are looking for.
		Holding the shift key down when creating the object creates a circle.
		Holding the shift key down while creating the object will create an object with equal sides.
	www.livemotioncentral.com /tutorials/lm1/0002 (542 words)

	Automate MSMQ Object Creation
		It starts by giving a brief overview of MSMQ objects and how they are traditionally created, then discusses a technique to automatically create these objects using the two Microsoft libraries.
		These objects, queues, triggers and rules are typically created using the tools provided by Microsoft, such as the MSMQ Explorer, which are part of the Message Queuing installation.
		Rules, which are bound to triggers, either invoke methods in COM objects or run standalone executables when they are activated.
	www.devx.com /vb2themax/Article/19863 (737 words)

	Active Worlds RenderWare® Object Creation - Links (Site not responding. Last check: 2007-10-22)
		Creating An Active World: General optimization tips and more info.
		AWI's Object and Avatar Libraries: AlphaWorld (AW), Mars, and Colony Alpha (Colony), and Megapath (3D Homepage) objects (+ avatars & sequences), textures, and sounds.
		Dachs' RWX-Objects: Objects, images, and links to his AW locations where more of his objects are used.
	www.tnlc.com /rw/links.html (518 words)

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