There no polymorphic-type response, Computer Engineering

Assignment Help:

Why is there no polymorphic-type response from a create() or find() method?

Ans) The EJB Specification forbids this behavior, and the weblogic.ejbc compiler checks for this behavior and prohibits any polymorphic type of response from a create() or find() method.

The cause the create() and find() methods are not polymorphic is same to the reason constructors are not polymorphic in Java. The derived classes commonly do not know or cannot initialize the base class properly.

 


Related Discussions:- There no polymorphic-type response

How to use activex control in .net, How to use ActiveX Control in .Net ? ...

How to use ActiveX Control in .Net ? ActiveX control is a special type of COM component that handles a User Interface. Using ActiveX Control in your .Net Project is even simple

Name the two operations of stack, Name the two operations of stack A st...

Name the two operations of stack A stack has only two operations and they are insertion and deletion of items. The operation insertion is called push (or push-down) as it can b

How to export a dreamweaver document as xml file, Q. How to export a dreamw...

Q. How to export a dreamweaver document as xml file? Step 1: Choose File -> Open, Step 2: Select document which uses a template (and has editable regions) Step 3: Click O

Write decoder functionality in only one statement in verilog, Write decoder...

Write decoder functionality in only one statement in verilog module decoder( // Outputs dout, // Inputs din ); input [3:0] din; output [15:0] dout;

Operation of micro-programmed control unit, Micro-instructions are stored i...

Micro-instructions are stored in control memory. Address register for control memory comprises the address of subsequent instruction which is to be read. Control memory Buffer Regi

Illustration of display on video monitor, Q. Illustration of Display on Vid...

Q. Illustration of Display on Video Monitor? Displaying a single character ; display contents of BL register (Presume that it has a single character) MOV AH, 02H MOV D

Reprographic technologies, Reprography: Reprography, as a term, has ga...

Reprography: Reprography, as a term, has gained international recognition in 1963. It includes "photocopying , microcopying, duplicating and in-plant printing and is character

Differentiate between transport & session layer of osi model, Differentiate...

Differentiate between Transport and Session layers of OSI model. OSI Model Transport Layer The transport layer utilizes the services provided through the network layer, as

What are the exceptions encountered for fp operation, What are the exceptio...

What are the exceptions encountered for FP operation? The exceptions encountered for FP operation are overflow, underflow. /0, inexact and invalid values.

Find values of x using 7s complement, Q. Perform binary subtraction, using ...

Q. Perform binary subtraction, using 1s & 2s complement: 1) 1010-1011 2) 0.1111-0.101 3) 11.11-10.111 Q.  (192.25)10 - (C0.C)16 = (x)7 Find values of x, using 7's compl

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd