Interfaces and Reflection

A relatively simple question, though I fear the answer may be more complex:
Given the standard Reflections API.
Given a Class object.
Is it possible to:
a) determine if the given Class object is an interface or abstract class?
b) determine the number of methods in the given Class that do not have an implementation?
If so, could you provide an example?
Thank you,
Pieter Vande Bruggen

a) Class.isInterface() and (Class.getModifiers() &
Modifier.ABSTRACT) are the two tests
b) For each interface, add the abstract methods to a
set. For each base class from Object up to the class,
test each method's modifiers for the abstract flag,
and place those that are abstract into the set,
removing any which are implemented.
PeteWow.
Boy, I'm sure glad that was my first post - now I feel rather stupid for missing them in the first place! For some reason, though, neither the Abstract flag nor the isInstance() method seemed to exist when I checked the API.
Personally, I blame the geebas.
Thank you, Pete.

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The difference between IEEE802.1Q Native VLAN sub-interface and Physical interface?

Hello
I think the following topologies are supported for Cisco Routers
And the Physical interface also can be using as Native VLAN interface right?
Topology 1.
R1 Gi0.1 ------ IEEE802.1Q Tunneling L2SW ------ Gi0 R2
R1 - configuration
interface GigabitEthernet0.1
encapsulation dot1Q 1 native
ip address 10.0.0.1 255.255.255.0
Topology 2.
R1 Gi0 ------ IEEE802.1Q Tunneling L2SW ------ Gi0 R2
interface GigabitEthernet0
ip address 10.0.0.1 255.255.255.0
And is it ok to use the physical interface and sub-interface with dynamic routing such as EIGRP or OSPF etc?
R1 Gi 0 ---- Point to Multipoint EIGRP or OSPF ---- Gi0 R2 / R3
Gi 0.20--- Point to Point EIGRP or OSPF --- Gi0.10 R4 (same VLAN-ID)
R1 - configuration
interface GigabitEthernet0
ip address 10.0.0.1 255.255.255.0
interface GigabitEthernet8.20
encapsulation dot1Q 20
ip address 20.0.0.1 255.255.255.0
Any information is very appreciated. but if there is any CCO document please let me know.
Thank you very much and regards,
Masanobu Hiyoshi

Hello,
The diagram is helpful.
If I am getting you correctly, you have three routers interconnected by a switch, and you want them to operate in a hub-and-spoke fashion even though the switch is capable of allowing direct communication between any of these routers.
Your first scenario is concerned with all three routers being in the same VLAN, and by using neighbor commands, you force these routers to establish targeted EIGRP adjacencies R1-R2 and R1-R3, with R1 being the hub.
Your second scenario is concerned with creating one VLAN per spoke, having subinterfaces for each spoke VLAN created on R1 as the router, and putting each spoke just in its own VLAN.
Your scenarios are not really concerned with the concept of native VLAN or the way it is configured, to be honest. Whether you use a native VLAN in either of your scenarios, or whether you configure the native VLAN on a subinterface or on the physical interface makes no difference. There is simply no difference to using or not using a native VLAN in any of your scenarios, and there is no difference to the native VLAN configuration being placed on a physical interface or a subinterface. It's as plain as that. Both your scenarios will work.
My personal opinion, though, is that forcing routers on a broadcast multi-access segment such as Ethernet to operate in a hub-and-spoke fashion is somewhat artificial. Why would you want to do this? Both scenarios have drawbacks: in the first scenario, you need to add a neighbor statement for each spoke to the hub, limiting the scalability. In the second scenario, you waste VLANs and IP subnets if there are many spokes. The primary question is, though: why would you want an Ethernet segment to operate as a hub-and-spoke network? Sure, these things are done but they are motivated by specific needs so I would like to know if you have any.
Even if you needed your network to operate in a hub-and-spoke mode, there are more efficient means of achieving that: Cisco switches support so-called protected ports that are prevented from talking to each other. By configuring the switch ports to spokes as protected, you will prevent the spokes from seeing each other. You would not need, then, to configure static neighbors in EIGRP, or to waste VLANs for individual spokes. What you would need to do would be deactivating the split horizon on R1's interface, and using the ip next-hop-self eigrp command on R1 to tweak the next hop information to point to R1 so that the spokes do not attempt to route packets to each other directly but rather route them over R1.
I do not believe I have seen any special CCO documents regarding the use of physical interfaces or subinterfaces for native VLAN or for your scenarios.
Best regards,
Peter

What is the diffrence between My Runnable Interface and Java Runnable

Hi folks
all we know that interfaces in java just a decleration for methods and variables.
so my Question is why when i create an interface its name is "Runnable" and i declared a method called "run" inside it.then when i implements this interface with any class don't do the thread operation but when i implement the java.lang.Runnable the thread is going fine.
so what is the diffrence between My Runnable Interface and Java Runnable?
thnx

Hi folks
all we know that interfaces in java just a decleration
for methods and variables.
so my Question is why when i create an interface its
name is "Runnable" and i declared a method called
"run" inside it.then when i implements this interface
with any class don't do the thread operation but when
i implement the java.lang.Runnable the thread is going
fine.
so what is the diffrence between My Runnable Interface
and Java Runnable?
thnxClasses and interfaces are not identified by just their "name", like Runnable. The actual "name" the compiler uses is java.lang.Runnable. So even if you duplicate the Runnable interface in your own package, it's not the same as far as the compiler is concerned, because it's in a different package.
Try importing both java.util.* and java.awt.* (which both have a class or interface named List), and then try to compile List myList = new ArrayList();

Portege M750 and Win8 - metro interface, and touchpad don't work

For those of you that, as myself, tryed to install windows 8 in a Toshiba Portege M750 and had problems in portrait tablet mode I recommend the following driver it works perfectly:
http://cdn.wacom.com/U/drivers/TabletPC/ISD_DualTouch_710-8.zip
The problem I had was that swipe didn't work with metro interface, and touch didn't work also and in portrait, strangely, when you touch the secren two arrows with different directions woul appear.
This driver solved my problem.
Hope that this can help...

Problem with wacom dual touch driver solved

Whats the difference between an INTERFACE and a CLASS?

Whats the difference between an INTERFACE and a CLASS?
Please help.
Thanx.

http://search.java.sun.com/search/java/index.jsp?col=javaforums&qp=%2Bforum%3A31&qt=Difference+between+interface+and+class

Difference between abstract interface and normal interface

Hello Friends,
What is the Difference between abstract interface and normal interface?....

What is the Difference between abstract interface and
normal interface?....The difference is that you didn't follow convention in the first case. All interfaces are implicitly abstract so you don't have to declare them as such.

INTERFACE AND EVENTS IN ABAP OO

Can some one explain me the real time need with example for use of interfaces and events in abap objects
(asking interface and events along doesnt mean that i am relating them).
<removed_by_moderator>
Pankaj Giri
Edited by: Julius Bussche on Jul 14, 2008 1:36 PM

Events :
Technically speaking :
" Events are notifications an object receives from, or transmits to, other objects or applications. Events allow objects to perform actions whenever a specific occurrence takes place. Microsoft Windows is an event-driven operating system, events can come from other objects, applications, or user input such as mouse clicks or key presses. "
Lets say you have an ALV - An editable one ...
Lats say - Once you press some button you want some kind of validation to be done.
How to do this ?
Raise an Event - Which is handled by a method and write the validation code.
Now you might argue, that I can do it in this way : Capture the function code - and call the validate method.
Yes, in this case it can be done.. But lets say .. you change a field in the ALV and you want the validation to be done as soon as he is done with typing.
Where is the function code here ? No function code... But there is an event here - The data changed event.
So you can raise a data changed event that can be handled and will do the validation.
It is not user friendly that you ask the user to press a button (to get the function code) for validation each time he enters a data.
The events can be raised by a system, or by a program also. So in this case the data changed event is raised by a system that you can handle.
Also, Lets say on a particular action you want some code to trigger. (You can take the same example of validation code). In this case the code to trigger is in a separate class. The object of which is not available here at this moment. (This case happens very frequently).
Advantage with events : Event handlers can be in a separate class also.
e.g : In the middle of some business logic .. you encounter a error. You want to send this information to the UI (to user - in form of a pop up) and then continue with some processing.
In many cases - A direct method call to trigger the pop up is not done. Because (in ideal cases) the engine must not interact with UI directly - Because the UI could be some other application - like a windows UI but the error comes from some SAP program.
So - A event is raised from the engine that is handled in the UI and a pop up is triggered.
Here -- I would have different classes (lets say for different Operating Systems). And all these classes must register to the event ERROR raised in application.
And these different classes for different Operation systems will have different code to raise a pop-up.
Now you can imagine : If you coded a pop-up for Windows (in your application logic) .. it will not work for Mac or Linux. But of you raise a event.. that is handled separately by a different UI classes for Win, Linux or Mac they will catch this event and process accordingly.
May be I complicated this explanation .... but I couldn't think of a simpler and concrete example.
Cheers.
Varun.

Firewire Interface and Microphone Choices?

Was looking to drop no more than 500 dollars on a firewire interface and less than 175 in a microphone to do some decent quality recording onto my MB (primarily trumpet, ukulele and acoustic guitar). For the interface I've been looking at the:
Apogee Duet
http://www.musiciansfriend.com/product/Apogee-Duet-Firewire-Interface?sku=234444
And for the mic, the:
MXL 992
http://www.musiciansfriend.com/product/MXL-MXL-992-LargeDiaphragm-Condenser-Micr ophone?sku=273162
Any feedback on these two products or have any other recommendations? Thanks for the help.

MBaltrusitis wrote:
Was looking to drop no more than 500 dollars on a firewire interface and less than 175 in a microphone to do some decent quality recording onto my MB (primarily trumpet, ukulele and acoustic guitar). For the interface I've been looking at the:
Apogee Duet
http://www.musiciansfriend.com/product/Apogee-Duet-Firewire-Interface?sku=234444
And for the mic, the:
MXL 992
http://www.musiciansfriend.com/product/MXL-MXL-992-LargeDiaphragm-Condenser-Micr ophone?sku=273162
Any feedback on these two products or have any other recommendations? Thanks for the help.
If you don't need a lot of inputs and outputs, but are looking for decent sound quality, the Apogee Duet seems like a good deal.
I'm not familiar with the mic.

How can I use Pro Tools with Fire Wire interface and Fire Wire external HD

If Mac Book Pro has only one Fire Wire jack and I want to use Pro Tools with an M Audio 1814 Firewire interface and an external Fire Wire HD how do I get around the fact that the Mac Book Pro has only one fire wire jack?
Pro Tools says that they DO NOT recommend using USB 2 Hard Drives as recording drives.
If I plug my External HD into the back of the 1814 it is way too slow to use, plus, I don't know why, Pro Tools is telling me that my External HD is "not a valid audio volume". It is a MAC OS Extended (Journaled) external Firewire HD (G-TECH G-DRIVE)
Stuck...
Message was edited by: Mezcla

You could consider getting a firewire hub or get an expresscard 34 adapter with a firewire port.
I personally use a Belkin Expresscard adapter that gives me an extra firewire port as well as two extra USB 2.0 ports.
Good luck.

Apple TV audio through interface and monitor speakers?

Hi all,
See following pic of my setup...
My question is as follows....
When Macbook is linked to tv via airplay, which is my normal setup as I produce music and use both screens, the sound output is set through Saffire audio interface and comes out the monitor speakers and all is good with the world, however, I want to be able to sit back and watch the apps on Apple TV as is shown on the big screen there ie. Netflix/NBA TV, but still using my computer soundcard and hence through the monitor speakers instead of it switching back to the TV sound.
IS THIS POSSIBLE???
Thanks in advance for any help.

Thanks for the response vazandrew. I've looked further into what you said and the solution is as follows;
http://www.amazon.co.uk/eSynic%C2%AE-Digital-Optical-Coaxial-Converter/dp/B009ZR 7IB8/ref=pd_sxp_grid_i_0_2
Ditial optical out to toslink audio converter, then out the converter to RCA/Jack etc.
Hope this helps anyone else with same question.

Error in CLR: InvalidOperationException - The current type is an interface and cannot be constructed. Are you missing a type mapping?

Hi, I'm trying to execute a .NET assembly's method from SQL Server 2012 Express, but I'm stuck with this error calling the sp:
Microsoft.Practices.ServiceLocation.ActivationException: Activation error occured while trying to get instance of type ISymmetricCryptoProvider, key "TripleDESCryptoServiceProvider" ---> Microsoft.Practices.Unity.ResolutionFailedException:
Resolution of the dependency failed, type = "Microsoft.Practices.EnterpriseLibrary.Security.Cryptography.ISymmetricCryptoProvider", name = "TripleDESCryptoServiceProvider".
Exception occurred while: while resolving.
Exception is: InvalidOperationException - The current type, Microsoft.Practices.EnterpriseLibrary.Security.Cryptography.ISymmetricCryptoProvider, is an interface and cannot be constructed. Are you missing a type mapping?
At the time of the exception, the container was:
Resolving Microsoft.Practices.EnterpriseLibrary.Security.Cryptography.ISymmetricCryptoProvider,TripleDESCryptoServiceProvider
---> System.InvalidOperationException: The current type, Microsoft.Practices.EnterpriseLibrary.Security.Cryptography.ISymmetricCryptoProvider, is an interface and cannot be constructed. Are you missing a type mapping?
System.InvalidOperationException:
   en Microsoft.Practices.ObjectBuilder2.DynamicMethodConstructorStrategy.ThrowForAttemptingToConstructInterface(IBuilderContext context)
   en BuildUp_Microsoft.Practices.EnterpriseLibrary.Security
Microsoft.Practices.ServiceLocation.ActivationException:
   en Microsoft.Practices.ServiceLocation.ServiceLocatorImplBase.GetInstance(Type serviceType, String key)
   en Microsoft.Practices.ServiceLocation.ServiceLocatorImplBase.GetInstance[TService](String key)
   en Microsoft.Practices.EnterpriseLibrary.Security.Cryptography.Cryptographer.GetSymmetricCryptoProvider(String symmetricInstance)
   en Microsoft.Practices.EnterpriseLibrary.Security.Cryptography.Cryptographer.DecryptSymmetric(String symmetricInstance, String ciphertextBase64)
   en ...
Is there any limitation by design for Interface instantiation from CLR database?
Any help I will appreciate, thanks a million!!

Bob, thanks for your response.. Yes, the code works fine outside of SQLCLR. This is the class I'm trying to instantiate, I'm using it to envolve Cryptographer, an Enterprise Library 5.0 class actually, so I have no control to test it without referring the
interface.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Practices.EnterpriseLibrary.Security.Cryptography;
using System.Security.Cryptography;
using Microsoft.SqlServer.Server;
using System.Data.SqlTypes;
namespace Cars.UtileriasGlobales.Helpers
    /// <summary>
    /// Clase que permite encriptar y desencriptar cadenas de textos utilizando
    /// TripleDESCryptoServiceProvider de Enterprise Library 5.0
    /// </summary>
    public static class Cryptography
        #region Metodos
        [SqlProcedure]
        public static void DesencriptarSQLServer(SqlString cadena, out SqlString cadenaDesencriptada)
            cadenaDesencriptada = !String.IsNullOrEmpty(cadena.ToString()) ? Cryptographer.DecryptSymmetric("TripleDESCryptoServiceProvider", cadena.ToString().Replace(" ", "+"))
: String.Empty;
        #endregion
I have collected all the dependent assemblies in one directory 'C:\migrate', so the create assembly finish ok. This is the script to create the assembly I'm using:
sp_configure 'clr enable', 1
GO
RECONFIGURE
GO
ALTER DATABASE cars SET TRUSTWORTHY ON
GO
CREATE ASSEMBLY CryptographyEntLib5
AUTHORIZATION dbo
FROM 'C:\migrate\Cars.UtileriasGlobales.dll'
WITH PERMISSION_SET = UNSAFE
GO
CREATE PROCEDURE usp_Desencriptar
@cadena nvarchar(200),
@cadenaDesencriptada nvarchar(MAX) OUTPUT
AS EXTERNAL NAME CryptographyEntLib5.[Cars.UtileriasGlobales.Helpers.Cryptography].DesencriptarSQLServer
GO
DECLARE @msg nvarchar(MAX)
EXEC usp_Desencriptar 'Kittu And Tannu',@msg output
PRINT @msg

Soap sender adpater issue missing sender interface and namespace in the msg

Hi Expert,
I got a problem when try to using soap sender adapter.
Here is the sceanrio:
Http web service client call ---PI soap sender adapter -some routing data-business system inbound.
Sytem information:
SAP_ABA     700     0019     SAPKA70019     Cross-Application Component
SAP_BASIS     700     0019     SAPKB70019     SAP Basis Component
PI_BASIS     2005_1_700     0019     SAPKIPYJ7J     PI_BASIS 2005_1_700
ST-PI     2008_1_700     0001     SAPKITLRD1     SAP Solution Tools Plug-In
SAP_BW     700     0021     SAPKW70021     SAP NetWeaver BI 7.0
ST-A/PI     01L_BCO700     0000          -     Servicetools for other App./Netweaver 04
Here is my problem. I use soapui trigger a test msg to PI system. But in the sxmb_moni, only sender service is there.
The sender interface and sender namespace is missing. And the msg has error called: :INTERFACE_REGISTRATION_ERROR.
Which means I do not have a inbound interface to process the msg.
But I suppose to redirect the msg to business system.
Here is the configuration:
reciever determination: soap sender service, soap outbound interface, soap interface namespace --> reciever business sytem.
Interface ditermination: soap sender service, soap interface --> receiver interface, receiver namespace.
Sender agreement: soap service, soap itnerface --- soap communication channel
receiver agreement, soap service---> receiver sevice, receiver interface, reciever namespace and reciever cummunication channel
define of soap sender adapter:
soap sernder, with use encoded header and use query string checked and qos as exactly once.
Anyone has any idea here? Many thanks! And most strange thing is yesterday it works and today it failed.
Please kindly help here.
Thanks a lot,
Leon

Hi guys,
thanks for the input.
Hi Sven,
I have input default interface and namespace.
Hi sivasakthi,
Regarding mistype, it may happen, I will do it again right away.
And the URL is generated by the wsdl toolkit in the directory.
I marked use encoded header and query string in the communication channel.
I will generate the wsdl again and test it again.
Regarding URL(endpoint of web service):
http://hostname:50000/XISOAPAdapter/MessageServlet?channel=:AGSSAL_SOAP:AGSSAL_SOAP_CC&version=3.0&Sender.Service=AGSSAL_SOAP&Interface=urn:a1s_saplivelinkcontent.service.sap.com^MI_O_AS_DELIVERNOTIFY_SOAP
Again thanks for you guys help.
Best regards,
Leon

I recently bought a dbx hardware compressor and am not quite sure how to use it in logic express 9. I hav a focusrite saffire 6 usb audio interface and am not dont how to use it in logic. Please help???

I recently bought a dbx hardware compressor and am not quite sure how to use it in logic express 9. I hav a focusrite saffire 6 usb audio interface and am not dont how to use it in logic. Please help???

MUYconfundido wrote:
Pancenter,
Thanks for the response, but I do not have a midi interface. I am using a midi to usb connector cable, thus bypassing the need for a Midi interface.
The Mac reads the USB cable as a midi device, but not the keyboard that I am trying to use as a controller. I have tried it with my korg sp 300 and with my Nord Electro 2.
Thoughts?
Thanks,
Tristan
Tristan...
This is what you have, correct?
http://www.alesis.com/usbmidicable
This from Alesis..
"The AudioLink Series USB cable receives and outputs MIDI signal thanks to its internal interface. The USB-MIDI Cable connects plug-and-play to your Mac or PC for an all-in-one USB-MIDI solution."
Notice, -internal interface-. What you have is a simple USB MIDI Interface. Most MIDI interfaces are USB.
My point is (was), MIDI OUT of the Korg goes to the connector marked MIDI IN on the Alesis, those new to MIDI often get this wrong.
pancenter-

Message Interface and Communication Channel are not getting in RW B

Hi
I have created a sceario in which i have created following things
2 - External Definition of Same XSD
2 - Data Types
2 - Message Types
4 - Message Interfaces
2 - XSLT mappings
2 - Interface Mapping
I have created on two scenario objects in XI ID.
But In RWB i can see only one sceario message interfaces and communication channels but the for other scenario MIs and Communication channels are not visible in RWB
I have created all the things in only one Namespace.
What could be the problem .please help me
Regards

Hi,
Have you activated it?
Can you see it in SXI_CACHE?
If one is no please run report SAI_CACHE_REFRESH
Kind regards,
Wojciech

BPM with 2 JDBC outbound interfaces and one inbound file interface

Hi,
I have a scenario where data is coming from different databases into XI and after processing the data it creates a file at the target side. Some calculations are to be done in the middleware and the result will be sent through a file.
My question is
1. BPM will be used in this scenario?
2. There will 2 outbound interfaces(one for each database access), 2 abstract interfaces and one inbound interface(file). Please correct me if I am wrong.
3. I have to multiply the value of field from one database to a particular value in another database and get the final result. For e.g exchange rate from one database is multiplied to Transaction currency in another database and get the group currency value in the output. Can anyone give the sequence of steps in the intergration process for this scenario as I am new to BPM.
Thanks,
Aparna

Thanks a lot Liang and madhusudana for your responses.
Since I can use JDBC lookup for this in my nornal scenario I think no need for BPM.
I have created the advanced UDF for JDBC lookup code. Below is the code.
String Query = " ";
Channel channel = null;
DataBaseAccessor accessor = null;
DataBaseResult resultSet = null;
MappingTrace importanttrace;
importanttrace = container.getTrace();
// Build the Query String
Query = "Select home_cur_code FROM gltrxcp WHERE company_code = '" + a[0] + "' ";
try{
//Determine a channel, as created in the Configuration
channel = LookupService.getChannel("BS_JDBC_send","cc_JDBClookup_rec");
//Get a system accessor for the channel. As the call is being made to an DB, an DatabaseAccessor is obtained.
accessor = LookupService.getDataBaseAccessor(channel);
//Execute Query and get the values in resultset
resultSet = accessor.execute(Query);
importanttrace.addWarning("resultset" + resultSet );
for(Iterator rows = resultSet.getRows();rows.hasNext();){
Map rowMap = (Map)rows.next();
result.addValue((String)rowMap.get("HOME_CUR_CODE"));
importanttrace.addWarning("result" + result );
catch(Exception ex){
result.addValue(ex.getMessage());
finally{
try{
if (accessor!=null) accessor.close();
catch(Exception e){
result.addValue(e.getMessage());
But I am not getting the desired result. I am getting result as 'Null'.
Can you please help in resolving this issue. I have also used trace for find out where it is passing Null and found that 'result' is coming null. Do i also need to parse it before passing it to 'result'?
Can anyone send sample code for JDBC lookup.

Interfaces and Reflection

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