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Topic: Execution context

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	Execution (computers) - Wikipedia, the free encyclopedia
		Execution in computer and software engineering is the process by which a computer or virtual computer carries out the instructions of a computer program.
		Most programs are executed with the support of an operating system and run-time libraries specific to the source language that provide crucial services not supplied directly by the computer itself.
		The execution hardware today is sometimes implemented in field-reprogrammable logic, and execution schemes that modify the hardware dynamically to match the current requirements exist and may become increasingly common.
	en.wikipedia.org /wiki/Execution_(computers) (480 words)

	Advanced Language Features (Site not responding. Last check: 2007-10-30)
		Execution control operations of a given execution context instance modify the semantics of subsequent SQL operations executed using that instance.
		Execution status operations of a given execution context instance describe the results of the most recent SQL operation that completed using that instance.
		Execution cancellation operations of a given execution context instance terminate the SQL operation that is currently executing using that instance.
	www.usd.edu /oracle/doc/java.817/a83723/alangfe2.htm (1904 words)

	Javascript Closures
		As execution contexts associated with function calls will have the Activation/Variable object at the front of the chain, identifiers used in function bodies are effectively first checked to see whether they correspond with formal parameters, inner function declaration names or local variables.
		The parameters to be used for the execution of the inner function are passed with the call to the function that returns it.
		Arranging that the execution of the event handler calls the specified method of the object instance, passing the event object and a reference to the associated element on to the object method and returning the method's return value.
	jibbering.com /faq/faq_notes/closures.html (6630 words)

	87advor2 (Site not responding. Last check: 2007-10-30)
		Note, however, that a connection context declaration does not define a type of schema that the connection context class is used for, and it is permissible to use the same connection context class for different schema types.
		Execution status operations of a given execution context instance describe the results of the most recent SQL operation executed using that instance.
		Though execution context instances may appear to be associated with connection context instances (given that a connection context instance has a default execution context instance, and that you can specify a connection context instance and an execution context instance together for a particular SQLJ statement), they actually operate independently.
	www.oracle.com /technology/docs/tech/java/sqlj_jdbc/doc_library/doc/87advor2.htm (4212 words)

	Understanding Execution Context
		Execution context is determined by the user or login connected to the session, or executing (calling) a module.
		Execution context is represented by a pair of security tokens: a login token and a user token.
		The execution context of a module, such as a stored procedure, trigger, or user-defined function, can be implicitly changed by specifying a user or login name in an EXECUTE AS clause in the module definition.
	msdn2.microsoft.com /en-us/library/ms187096(d=robot).aspx (1069 words)

	KJS::Context class Reference (kjs Library)
		Represents an execution context, as specified by section 10 of the ECMA spec.
		The object that is used as the "this" value depends on the type of execution context - for global contexts, the global object is used.
		For code executed by the built-in "eval" function, the this value is the same as the calling context.
	developer.kde.org /documentation/library/3.3-api/kjs/html/classKJS_1_1Context.html (428 words)

	FreeBSD Process Management > Context Switching (Site not responding. Last check: 2007-10-30)
		When a thread executes for the duration of its time slice or when it blocks because it requires a resource that is currently unavailable, the kernel finds another thread to run and context switches to it.
		Voluntary context switching is initiated with a call to the sleep() routine, whereas an involuntary context switch is forced by direct invocation of the low-level context-switching mechanism embodied in the mi_switch() and setrunnable() routines.
		User-mode hardware-execution state: When execution is in kernel mode, the user-mode state of a thread (such as copies of the program counter, stack pointer, and general registers) always resides on the kernel's execution stack that is located in the thread structure.
	www.awprofessional.com /articles/article.asp?p=366888&seqNum=3 (4766 words)

	Chapter 3. Flow execution
		Execution of a flow is carried out by a dedicated system that is based internally on a state machine that runs atop the Java VM.
		Once created, a flow execution, representing the state of a conversation at a point in time, maintains contextual state about itself that can be reasoned upon by clients.
		In addition, a flow execution exposes two data structures, called scopes, that allow clients to set arbitrary attributes that are managed by the conversation.
	static.springframework.org /spring-webflow/docs/1.0-ea/reference/flow-execution.html (1234 words)

	Advanced Language Features
		Be aware that a connection context class declaration does not define a set of SQL entities to be used with the declared connection context class, and it is permissible to use the same connection context class for connections that use disparate and unrelated sets of entities.
		It is possible to use a single connection context class, even for connections to databases from different vendors, as long as each schema you connect to has entities that are accessible by the same names and that use compatible datatypes.
		If you are using the same connection context instance with multiple threads, then declare additional execution context instances and specify execution context instances for your SQLJ statements such that a different execution context instance is used for each thread.
	www.stanford.edu /dept/itss/docs/oracle/9i/java.920/a96655/alangfea.htm (8787 words)

	Batch Compilation, Recompilation, and Plan Caching Issues in SQL Server 2005
		Execution contexts are derived "on the fly" in that before a batch execution begins, a skeleton execution context is generated.
		The execution context for the first execution of S can be reused for the second execution of S. If a batch execution generates an error of severity 11 or higher, the execution context is destroyed.
		For a trigger execution, the number of rows affected by that execution (1 versus n) — as measured by the number of rows in either inserted or deleted table — is a distinguishing factor in determining a plan cache hit.
	www.microsoft.com /technet/prodtechnol/sql/2005/recomp.mspx (11435 words)

	Components and Concepts
		Except where noted otherwise, the term context refers to a PostScript context; the X Graphic Context is referred to as the GC or as the X Graphic Context.
		In addition to the space of each execution context, there is shared VM, which is shared among all execution contexts of a server.
		In WS, execution contexts and spaces are associated with X resources on the server.
	h30097.www3.hp.com /docs/base_doc/DOCUMENTATION/HTML/AA-Q15WB-TE_html/dps3.html (1298 words)

	Java Programming with Oracle SQLJ: Chapter 8: Contexts and Multithreading
		An execution context should not be confused with a connection context: a connection context is used to specify a connection to a database; an execution context is used to run a SQL statement.
		If you specify a connection context without specifying an execution context, then the default execution context for that connection context is used to perform the SQL statement.
		In the case of a FETCH statement, the connection context and execution context originally used to populate the iterator is used.
	www.oreilly.com /catalog/orasqlj/chapter/ch08.html (3109 words)

	Fabulous Adventures In Coding : What is the relationship between global object enumerators, execution contexts, ... (Site not responding. Last check: 2007-10-30)
		When control enters an execution context for function code, an object called the activation object is created and associated with the execution context.
		When control enters an execution context, a scope chain is created and populated with an initial set of objects, depending on the type of code.
		During execution within an execution context, the scope chain of the execution context is affected only by with statements (section 12.10) and catch clauses (section 12.14).
	blogs.msdn.com /ericlippert/archive/2005/05/04/414684.aspx (2038 words)

	ONJava.com -- Java Programming with Oracle SQLJ: Contexts and Multithreading
		An execution context is used to hold the number of rows affected by a SQL operation, along with any warnings generated by the database.
		Execution contexts are used to control certain aspects of how a SQL statement is executed.
		For example, you can use an execution context to control the timeout period after which a SQL operation is abandoned.
	www.onjava.com /pub/a/onjava/excerpt/java_sqlj_ch8/index.html (257 words)

	No Title
		Since a context consists of contents of stack frames generated by a chain of method invocations, the externalizer follows the chain from older frames to newer ones and serializes the contents of the frames.
		Fortunately, Sun's HotSpot VM [#!url:hotspot!#] allows the execution context on bytecode to be captured during the execution of the generated native code since capturing the program counter on bytecode is also used for its dynamic deoptimization.
		This is the case even though MOBA moves the execution context in addition to the data held by the migrant.
	www-unix.mcs.anl.gov /~laszewsk/papers/europar2000 (5460 words)

	Class JavaAgent.context.AgentContext
		For standalone or applet execution, either a main() method or the applet init() method must instantiate and initialize the context object.
		Execution parameters which are bound at runtime are contained in a RuntimeParams object.
		Internal system messages are funneled back to the context via the addSystemMessage() method, if the message begins with the string "System stat:" then the message is being used to report some period system performance statistic and thus will not be added to the log file.
	www-cdr.stanford.edu /ABE/api/JavaAgent.context.AgentContext.html (579 words)

	Execution Patterns in Object-Oriented Visualization - DePauw, Lorenz, Vlissides, Wegman (ResearchIndex) (Site not responding. Last check: 2007-10-30)
		Abstract: Execution patterns are a new metaphor for visualizing execution traces of object-oriented programs.
		We present an execution pattern view that lets a programmer visualize and explore a program's execution at varied levels of abstraction.
		By classifying repetitive behavior automatically into high-order execution patterns, we drastically reduce the information a programmer must assimilate,...
	citeseer.ist.psu.edu /depauw98execution.html (609 words)

	Coldfusion Muse: Why You should worry about your execution plan
		The execution context is used to hold the data necessary to run the query.
		There is the context - the parameters to use in the query, and there is the execution code.
		Because if it finds a cached execution plan it means that this query has been run successfully before, and the bindings ensure that the context data is typed correctly.
	mkruger.cfwebtools.com /index.cfm?mode=entry&entry=C34E6F75-F938-F821-0813D1AAB006B26E (1486 words)

	Class java.lang.SecurityManager
		Checks to see if the current execution context and the indicated execution context are both allowed to connect to the indicated host and port.
		Checks to see if current execution context is allowed to use (join/leave/send/receive) IP multicast.
		Checks to see if the current context or the indicated context are both allowed to read the given file name.
	www.public.iastate.edu /~java/docs/api/java.lang.SecurityManager.html (1296 words)

	Context (Unicore AJO V4.0)
		As part of a Resource Description this advertisies that the Vsite supports the named execution context.
		As part of a Resource Request this says that the Task uses the named execution context.
		Execution contexts include libraries (MPI) and special modes of execution (timing or debug).
	www.cs.man.ac.uk /~garwood/unicore/evidence/Context.html (55 words)

	Serialize JVM Execution Context with a New Programming Library
		Two types of interpreters exist: the ones that implement their own internal execution stack and those that rely on the JVM's internal stack.
		Execution state: the content of the VM's pc register, allowing it to sequentially execute the code at the proper location; plus the content of the stack associated with the Thread executing the bytecode.
		Called from the native JVM interpreter, the same method body would be executed normally.
	www.devx.com /Java/Article/15817/1954?pf=true (1362 words)

	Context Software : Context Scripting : Overview
		Context Scripting Suite is a component library desinged to compile and execute scripts using TCtxScript component.
		Context Scripting is shipped with Object Pascal-like script compiler.
		Context Scripting is extremely flexible and resembles a real compiler.
	www.contextsoft.com /products/ctxscript (204 words)

	Plan Execution for Autonomous Spacecraft - Pell, Gat, Keesing, Muscettola, Smith (ResearchIndex) (Site not responding. Last check: 2007-10-30)
		The spacecraft domain raises a number of challenges for planning and execution, ranging from extended agency and long-term planning to dynamic recoveries and robust concurrent execution, all in the presence of tight real-time deadlines, changing goals, scarce resource constraints, and a wide variety of possible failures.
		Pell, B.; Gat, E.; Keesing, R.; Muscettola, N.; and Smith, B. Plan execution for autonomous spacecraft.
		8 Circa: A cooperative (context) - David, Ed et al.
	citeseer.ist.psu.edu /pell96plan.html (534 words)

	Script Execution Context (Sec)
		The Windows NT security context in which any ASP script executes controls what the script is allowed to do, under both Windows NT Authentication and Membership Authentication.
		A script runs in the context of the current user or as Anonymous, unless credentials (an account name and password) are hardcoded into the script or obtained from the user at run time.
		A script could be written, for example, to have only innocuous behavior when run with typical user credentials, but to perform privileged and unauthorized activity when the user happens to be a system administrator.
	www.ppg.com /siteserver/docs/ss_security_lpxj.htm (537 words)

	execution context in netfilter hooks. \| iptables \| Devel
		As far as I understood, the context is that of a softirq, inside a
		confused about the kernel contexts and their interaction.
		can be in interrupt context because of retransmissions and other issues.
	www.gossamer-threads.com /lists/iptables/devel/56825 (1163 words)

	[albatross-users] Re: Renaming application and execution context classes
		Previous message: [albatross-users] Renaming application and execution context classes
		I guess it's because the App needs to know where/how to load the context (or what type of context to load).
		But wouldnt you be better to make the programmer hard code enough information into the code so that the context type can be created and then you would have 3 app classes rather than 9.
	www.object-craft.com.au /pipermail/albatross-users/2003-June/000523.html (607 words)

	SecuriTeam™ - Netscape Servers heap buffer overflow can lead to remote code execution (context)
		Since sprintf doesn't do any bounds checking, the buffer can be overflowed depending on the size of 'userbuff' which is the argument the user specifies to the 'context=' parameter when calling the vulnerable program.
		A string of 999 bytes is enough to overflow the 'pFixedBuffer' by 1 byte and cause an exception.
		Due to the nature of the data overwritten, this vulnerability could be exploited, being possible to execute arbitrary machine code.
	www.securiteam.com /windowsntfocus/6K0020A0AC.html (414 words)

	Execution context \| Zope \| Dev
		the execution stack just as though they were methods, you could probably
		Sent: Wednesday, March 03, 2004 3:33 AM Subject: [Zope-dev] Re: Execution context
		> the execution stack just as though they were methods, you could probably
	www.gossamer-threads.com /lists/zope/dev/23318 (307 words)

	23.2.3.3 What's the Execution Context?
		Examples cannot see names defined in other docstrings.
		You can force use of your own dict as the execution context by passing
		Release 2.6a0, documentation updated on August 18, 2006.
	docs.python.org /dev/lib/doctest-execution-context.html (92 words)

	Kernel Thread Execution Context and PID - LinuxQuestions.org
		Kernel Thread Execution Context and PID - LinuxQuestions.org
		If kernel threads have their own process descriptors and in their own kernel stack, shouldn't I be able to get the PID this way?
		If you'd like to contribute content, let us know.
	www.linuxquestions.org /questions/showthread.php?s=&threadid=288836 (321 words)

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