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Topic: Initial object


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In the News (Fri 25 Dec 09)

  
  Initial object - Wikipedia, the free encyclopedia
In mathematics, an initial object of a category C is an object I in C such that to every object X in C, there exists precisely one morphism I → X.
The empty set is the unique initial object in the category of sets; every one-element set (singleton) is a terminal object in this category; there are no zero objects.
The singletons are not initial: while every non-empty set admits a function from a singleton, this function is in general not unique.
en.wikipedia.org /wiki/Initial_object   (975 words)

  
 Initial object -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-11-07)
Directly from the definition, one can show however that if an initial object exists, then it is unique (Click link for more info and facts about up to) up to a unique ((biology) similarity or identity of form or shape or structure) isomorphism.
Similarly, the empty space is the unique initial object in the category of ((mathematics) any set of points that satisfy a set of postulates of some kind) topological spaces; every one-point space is a terminal object in this category.
The singletons are not initial: while every non-empty set admits a (A mathematical relation such that each element of one set is associated with at least one element of another set) function from a singleton, this function is in general not unique.
www.absoluteastronomy.com /encyclopedia/i/in/initial_object.htm   (1065 words)

  
 Java IDL: Initialization
Obtain one or more initial object references, typically at least a naming context.
Ensure that the object referred to is in fact accessible from where the applet or application is running.
Passing this value returns a reference to a root naming context which, after narrowing, can be used to look up references for objects whose names are known to the applet or application (assuming those objects are registered by those names in the root or subordinate naming contexts).
java.sun.com /j2se/1.3/docs/guide/idl/jidlInitialization.html   (1066 words)

  
 [No title]
Initially, the flow object shall be displayed using the principal mode.
The marginalia flow object class is used to contain flow objects whose resulting areas shall be attachment areas for the line in which the marginalia flow object occurs.
A marginalia flow object shall have an ancestor flow object that is of class paragraph.
www.jclark.com /dsssl/split/dsssl-175.html   (781 words)

  
 Initial object : Zero object   (Site not responding. Last check: 2007-11-07)
The empty set is the unique initial object in the category of sets; every one-element set is a terminal object in this category; there are no zero objects.
There are no terminal objects, unless we allow our graphs to have loops (edges starting and ending at the same vertex), in which case the one-point-one-loop graph is terminal.
The kernel of f is a terminal object in this category; this expresses the universal property of kernels.
www.termsdefined.net /ze/zero-object.html   (969 words)

  
 Initial and Terminal Objects   (Site not responding. Last check: 2007-11-07)
An object q is universal, or initial, if for every object r in the category, there is one and only one morphism from q to r.
An object q is couniversal, or terminal, if for every object r in the category, there is one and only one morphism from r to q.
If q and r are both initial there is one morphism from each to the other, and the composition has to be the unique morphism from q into itself, which is the identity morphism.
www.mathreference.com /cat,uni.html   (185 words)

  
 ORB (Java 2 Platform SE 5.0)   (Site not responding. Last check: 2007-11-07)
Connects the given servant object (a Java object that is an instance of the server implementation class) to the ORB.
Thus the object appears to be destroyed from the point of view of remote clients.
object are in the same order as in the original IDL operation definition, which makes it possible for the list to be used in dynamic invocation requests.
rt.cs.earlham.edu /~hunteke/jdk1.5.0-docs/api/org/omg/CORBA/ORB.html   (1626 words)

  
 MOTION IN TWO DIMENSIONS   (Site not responding. Last check: 2007-11-07)
Calculate the total time the object is in the air by using the general equation of motion and the initial vertical velocity component.
It can be used to determine the speed and angle with which the object strikes the ground (remember, it is the vector sum of the horizontal and vertical velocity components at that point).
Two objects with different masses are hung by a cord across a frictionless pulley (in its variation, one object is on a table and the other hangs off the edge or the object is on an incline and the other object hangs off its edge).
www.ship.edu /~sagoul/motion_in_two_dimensions.htm   (3524 words)

  
 ipedia.com: Empty set Article   (Site not responding. Last check: 2007-11-07)
It may stem, in part, from the gap between intuitive structures that are generally modelled by sets, such as piles of objects, and the formal definition of a set.
As a result, the empty set is the unique initial object of the category of sets and functions.
The empty set can be turned into a topological space in just one way (by defining the empty set to be open); this empty topological space is the unique initial object in the category of topological spaces with continuous maps.
www.ipedia.com /empty_set.html   (1160 words)

  
 Administration Guide -- Core Components
Object ACL --You can use the object ACL type to grant permissions to any CDS name (that is, object entries, soft links, child pointers, clearinghouses, and directories), as well as to CDS clerks and servers.
By creating all three ACL types (object ACL, initial object creation ACL, and initial container creation ACL) for a directory, you can grant access not only to the directory itself but also to the directory's future contents and all child directories (and their contents) that may later be created.
An initial ACL entry is also created, granting the machine principal and the namespace authorization group (subsys/dce/cds-admin) read, write, and control permissions to the clerk or server process on that system.
www.csupomona.edu /reference/dce3.1/html/ADMINGD/ADMING25.HTM   (3775 words)

  
 [No title]
left-string-position ; If the object is a group, this is the string ; position of the leftmost letter in the group.
For now, only the ; letter in the modified string that ; corresponds to the changed letter in ; the initial string can be given an ; extrinsic description (e.g., in ; "abc -> abd, pqrs -> ?", the 'd' would ; probably get the extrinsic description ; "Successor of the 'c' in 'abc'").
nil) ; T if the salience of this object is to be ; clamped (used when a snag has been hit, to ; clamp the salience of the object causing the ; snag).
www.cs.pdx.edu /~mm/ccat-src/workspace-objects.l   (1660 words)

  
 COMP 370 - Software Design With OOP
Given an initial set of object candidates and their possible behaviors for an engineering problem, construct an object model to identify the appropriate associations among the object candidates using a "CASE" documentation tool.
Given an initial object model with its dynamic model representing a very simple climate control system, write appropriate algorithms to implement the individual object behaviors.
Given an object container maintaining a set of heterogeneous list of objectives as described in Terminal Objective #11, design a set of algorithms to implement the various object behaviors including polymorphism, operator overloading and friends.
www.atl.devry.edu /tcloud/html/comp_370.asp   (1586 words)

  
 [No title]   (Site not responding. Last check: 2007-11-07)
Applications require means by which to obtain their initial object references.
Initial References Service (IRS) is a Novell proprietary (local) API for setting and getting initial references.
It allows you to publish local objects, as well as objects that will be visible via the bootstrap protocol and the IIOP locate (iioploc) to others.
www.novell.com /documentation/extend52/Docs/help/MP/orb/tutorial/bootstrap.html   (354 words)

  
 Using the WLE SPI Implementations for JNDI
Because the object making the call is already logically in the environment of the server, there is no need to specify environment properties to access the default application namespace.
To use an object in the WLE domain namespace, WLE requires that objects returned by lookup must be remotely accessed from the client in a form that preserves its functionality.
The domain of an object reference is unknown to the application, and invocations on an object reference for a remote domain are transparent to the application.
e-docs.bea.com /wle/wle50/jndi/jndispi.htm   (4172 words)

  
 Class org.omg.CORBA.ORB   (Site not responding. Last check: 2007-11-07)
Connect a servant (a Java object which is an instance of the server implementation class) to the ORB.
the servant object has to be marshaled and sent outside of the process address space.
The returned Any object is initialized to contain a typecode of type TCKind.tc_null.
www.sims.berkeley.edu /~mikechen/jdk1.2/docs/api/org.omg.CORBA.ORB.html   (1184 words)

  
 Objects of Expense   (Site not responding. Last check: 2007-11-07)
If additional objects need to be opened, departments should send a comprehensive list of the accounts and objects to their OSR research administrator.
Opening Routine Objects on Federal Demonstration Partnership (FDP) Projects: Due to the implementation of the new procedures in the Spring of 2001 for opening additional objects of expense on FDP awards, it is expected that departments will no longer send OSR requests to open objects on a routine basis.
If additional routine objects still need to be opened, the established procedure is to first check the CUFS EXPC screen on-line to verify that the objects in question are not already open.
www.northwestern.edu /orsp/objorsp_print.html   (3014 words)

  
 Code Snippet- JNDI   (Site not responding. Last check: 2007-11-07)
The objects can be a file on your disk or a computer in the network or an EJB object.
Initial context factory is provided by specific naming and directory service provider.
EJB object is part of some other J2EE application in the same server.
www.oracle.com /technology/sample_code/tech/java/codesnippet/j2ee/JNDI   (1067 words)

  
 Initial Object/Initial Container   (Site not responding. Last check: 2007-11-07)
ACL Inheritance is gained by using the Initial Object (io) and Initial Container (ic) ACLs.
Initial Object ACLs determine the default ACLs inherited by files created in the parent directory.
Initial Container ACLs determine the default ACL inherited by subdirectories.
www.lions.odu.edu /ioic.html   (309 words)

  
 Replacing the _bind() Function   (Site not responding. Last check: 2007-11-07)
When using the naming service, an object's name is an abstraction of the object location and the actual location details are stored in the naming service.
An initial reference to the naming service is obtained by calling resolve_initial_references() with NameService as its argument.
These functions allow you to convert an object reference to and from the stringified interoperable object reference (stringified IOR) format.
www.iona.it /support/docs/e2a/asp/5.1/platform/migration/O2kClient2.html   (811 words)

  
 TAO Interoperable Naming Service   (Site not responding. Last check: 2007-11-07)
The object references constructed using this format have a 'SimpleKey' in the Object Key field of the IOR.
All default TAO Object keys are preceded by a special sequence of octets ^t^a^o/0.
This is taken care of by the POA when it generates the Object key for the IOR.
www.cs.wustl.edu /~schmidt/ACE_wrappers/TAO/docs/INS.html   (456 words)

  
 ob: Ways of getting initial object reference ...   (Site not responding. Last check: 2007-11-07)
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Cheers, Marc -- Marc Laukien Phone: (978) 439 9285 x 245 Object Oriented Concepts, Inc. FAX: (978) 439 9286 44 Manning Rd. WWW: http://www.ooc.com Billerica, MA 01821 E-Mail: mailto:ml@ooc.com # To unsubscribe, send an email to mailto:majordomo@ooc.com with # "unsubscribe ob" in the body of your message.
www.ooc.com /pipermail/ob-users/1999-December/008478.html   (214 words)

  
 Replacing the _bind() Function
A corbaloc URL is a form of human-readable stringified object reference.
Constructing an Orbix 3.3 object key directly based on the preceding format does not always work because some versions of Orbix impose extra restrictions on the object key format.
It is generally better to use the naming service to obtain initial object references for application-level objects.
www.iona.ie /support/docs/orbix/migration/html/O2kClient2.html   (786 words)

  
 Properties   (Site not responding. Last check: 2007-11-07)
The initial value is given by the second argument, if present; it defaults to 0.
This means that if a particular object is not the object that first defines a prop, then the prop will return the value of it's parent, and its parent's parent, (etc), until you reach the object where the prop is first defined.
This means that if you change the value of the prop on an object that defines the prop, the value will change for any subsequent kids that have not had that value set.
tecfa.unige.ch /moo/book2/node112.html   (348 words)

  
 allocate-dynamic-foreign-object   (Site not responding. Last check: 2007-11-07)
An FLI type specifying the type of the object to be allocated.
An FLI pointer type specifying the type of the pointer object to be allocated.
A list of forms which initialize the contents of each element in the newly allocated object.
www.lispworks.com /documentation/lwu41/fli/FLI_49.HTM   (179 words)

  
 Page-sequence Flow Object Class   (Site not responding. Last check: 2007-11-07)
If the value is not #f, then the parent flow object shall be of type root; if there is a preceding flow object, then it shall be of type page-sequence.
If there is no preceding flow object and the value is not #f, then it shall be an error if the specified type of the first page is not the actual type as determined by the
The ports of a page-sequence flow object are determined by the page-models.
tolikus.hq.aaanet.ru:8080 /techdoc/dsssl/h3-89.htm   (847 words)

  
 AllRefer.com - neutrino astronomy (Astronomy, General) - Encyclopedia
They react with chlorine in the detector to produce a radioactive isotope of argon, which is detectable.
Because of its proximity, the sun is expected to be by far the most intense source of neutrinos and has been the initial object of study.
However, several neutrino detectors observed a rush of neutrinos from Supernova 1987A in a nearby galaxy called the Large Magellanic Cloud.
reference.allrefer.com /encyclopedia/N/neutrast.html   (412 words)

  
 WebLogic JNDI   (Site not responding. Last check: 2007-11-07)
Therefore, it is important to understand the implications of binding an object to the JNDI tree in a clustered environment.
It is important to note that since this is not an RMI object, what you are binding into the JNDI tree (and copying to the other WebLogic Servers) is the object itself, not a stub that refers to a single instance of the object hosted on one of the WebLogic Servers.
Remember the custom object is removed from the cluster if the WebLogic Server to which it was bound fails and changes to the customer object are not propagated through the cluster unless the object is unbound and rebound to the JNDI tree.
www.skywayradio.com /tech/wls/jndi   (2388 words)

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