Difference between different invokeLater() methods

What is actually the difference between:
SwingUtilities.invokeLater()
EventQueue.invokeLater()
Are there other classes that implements the invokeLater() method?

Use the frigging source, Luke.
javax.swing.SwingUtilities:
    public static void invokeLater(Runnable doRun) {
     EventQueue.invokeLater(doRun);
    }

Similar Messages

What is the difference between organisation payment method and Assignment payment method?

What is the difference between organisation payment method and Assignment payment method?
As i am a new bie, i am curious to know this though it might sound a silly question.
Thank you,
Kuton

You can create an Organization payment method of any Payment type(Cash, Check, BACS, NACHA etc) under the same country.
All these will be valid payment methods on the payroll description form.
And you can even attach these to a person.
In which case you will have a Base currency (say USD) and payment currency (say GBP).
These cases are not normal and only used by people who use a single BG for paying employees in 3-4 countries.
So, unless you need to pay in different currencies, do not use it.
Cheers,
Vignesh

Difference between invoking a method using reflect.proxy and reflect.Method

Could any one tell me the difference between invoking a method using reflection java.lang.reflect.Method and java.lang.reflect.Proxy
using both the class, we can invoke a method at runtime
1)
Method mthd=cl.getMethod("methodName",parameterName);
Integer output=(Integer)mthd.invoke(new RunMthdRef(),input);
2)
Proxy.newProxyInstance(super.getClass().getClassLoader(), new Class[] { adapter }, new SomeClass(this));
Does anybody have any idea?

The two idioms are fundamentally different. Using java.lang.reflect.Method is how we call a method on a class, using Proxy is how we intercept that method call. An exercise for you, to illustrate that they do not do the same thing: write a simple class with one method, then use java.lang.reflect.Method to invoke that method, and then use a Proxy to invoke that method

Differences between different versions of BW 2.1C,3.0A and 3.5

Can anybody tell me the differences between different versions of BW.
I m new to SAP BW,i directly learned in BI7.0.So please anybody let me know the difference in implementation of features in 2.1C, 3.0A ,3.5 ,if possible BI7.0 also

please read this:
http://help.sap.com/saphelp_nw70/helpdata/en/b2/e50138fede083de10000009b38f8cf/frameset.htm

What is the difference between function and method

Hey I need help I dont know which is the difference between function and method ?
Does anybody can ask me this question.
Thanks

jverd wrote:
The first two answers were also correct.Also the blocked message, quoted here for posterity:
"Tinkerbell" wrote:
Methods are defined by Java whereas functions are not. ~

Differences between different IR versions

Can you please tell me the differences between different IR versions?
Thanks

Here are the 11.1.2 specific IR changes: from the R&A Readme:
Interactive Reporting
Support for SFTP
SFTP protocol is now supported for distribution outputs generated by jobs and schedules. For more information, see the Hyperion Reporting and Analysis Framework Administrator’s Guide.
Interactive Reporting Roles
Two new roles, IR HTML Viewer and IR WebClient Viewer, have been added for Interactive Reporting. For additional information, see the EPM User and Role Security Guide.
Removal of CMC
CMC is no longer a separate web application. All functionality has been merged into the Administer module. For more information, see the Hyperion Reporting and Analysis Framework Administrator’s Guide.
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Cheers, Iain

Difference between batch input method and batch input recording in LSMW?

hi,
plz tell me the difference between batch input method and batch input recording in LSMW?
thanks & regards
Ruban

Hi Ruban,
The main difference between the two is in lsmw we can view the code status at any time just by coming to prvious steps, but whereas in batch input method unless the recording is finished we cant view the code.
second diff is tht we need to do lot of coding in batch inptu whereas here in lsmw we need not do much coding and mapping to data.
third diff is that batch input is both inbound and outbound where as lsmw is only inbound.
hope u got the differences.....
Regards,
sana M...

Difference between batch input method and direct input method in LSMW.

Hi all,
what is difference between batch input method and direct input method in LSMW. are they same?if differences are there tell me with details?

Hi,
Here are few differences bw Batch Input and Direct Inputs methods.
Batch Input: Uses classical BDC approach, but doesn't required an ABAP program to be written to format the BDC DATA. The user has to format the data using predefined structures and store it in a flat file. Yet it is a slower updation method.
Direct Input: Works similar to Batch Input programs. The difference is, instead of processing screens they validate fields and directly load the data into tables using standard function modules. Much faster and suits for large volume of data.
Thanks.
DhanaLakshmi M S

Difference between eventhandlers and methods

Hi all
I hope i am correct when i say creating an action called submit in a view raises an eventhandler called onactionsubmit in the implementation tab for that controller
we are expected to write some coding in the implementation tab of the view controller in a specified area.
lets say that this submit action should give us the details of a sales order wherein it should go to the componnet controller to get the data
apart from this coding we need to write code for populating the context of the component controller from where we get the actual data
so how different are the coding areas in the view controller and the component controller since one handles an action and another getting a data?
urgent.
Thanks in advance
krishna chaitanya

hi all
pls elaborate me about the actual difference between a eventhandler and a method
thanks in advance
krishna chaitanya

Difference between All valuation methods

Hiii Guru's,
Can anybody tell me the actual difference between the inventory valuation methods given in B1 - Standard / Moving / FIFO ... Actually I want to know their impact in each case if I maintain my masters at item group level. so how it will affect my accounts... preferrably give examples in each case to understand the different scenario...
Thanks in advance. I will assign points for helpful asnwers.
Regards,
Abhishek

Hi,
Standard :-
This valuation method means the cost of an item will be standard. It never change under any circumstanses. The Only way to change the cost is to Inventory Revaluation.
Eg, Lets consider Item A
Valuation Method : Standard
Value : $56.00
The above value will be taken to any calculation.
Moving Average :-
This means a valuation takes place based on the corresponding quantities and prices for each goods receipt and issue, and the moving average price is updated accordingly. The valuation price is calculated as the quantity multiplied by the average price.
Eg, Let's Consider Item A
Valuation Method : Moving Average
Value : $56.00
If we purchase the item for $60.00 then the item cost will be changed according to the purchase value. In this Moving Average Value will be th item cost.
FIFO :-
Under this valuation method, the system assumes that the items that entered the warehouse first will also exit first. This means goods issues are valuated with the prices that are valid for the first goods receipts.
Eg., Let's consider Item A,
Valuation Method : FIFO
Value : $56.00
The current value of the item is $56.00. If we purchase the item for $60.00 then the item will have two values, ie., items which bought first with $56 and currently bought with $60.00. The item issue will be done in FIFO manner. (ie., items with $56.00 value will be issued first and then stock with $60.00 will be taken)
Raja.S

Difference between different roles of APs

Hi
I am Kinda curious to study in detail the different station roles of the APs and the difference between them. Does anybody know where I can find this information?
Thanks in advance

Hi Sachendra,
Here is some reading that may help;
Roles and the Associations of Wireless Devices
From this good doc;
http://www.cisco.com/en/US/products/hw/routers/ps272/prod_configuration_basics09186a008073f6b7.html
Access Point as a Workgroup Bridge Configuration
http://www.cisco.com/en/US/products/hw/wireless/ps4570/products_configuration_example09186a00805b9b87.shtml
WLAN Radio Coverage Area Extension Methods
http://www.cisco.com/en/US/customer/products/hw/wireless/ps430/products_tech_note09186a00805190f1.shtml
Cisco Unified Wireless Network Overview
http://www.cisco.com/en/US/netsol/ns339/ns395/ns176/ns282/netbr09186a0080184925.html
Cisco Aironet Wireless Access Points Solution Overview
http://www.cisco.com/en/US/products/ps6521/prod_brochure0900aecd8035a015.html
Hope this helps!
Rob

Main difference between these 2 methods

HI
what is the main difference between updateOrder and repriceOrder methods in any form handler
please give me exact difference

Both are totally different operations. repriceOrder method invokes the pricing engines and calculators to calculate the order prices whereas, updateOrder method saves the changed order properties to the database.
Thanks,
Tejas

Difference between different types of patches

Hi all
I want to know difference between the database upgrade patchset, cpu,
psu, one off patches and what are the methods of deploying these patches?

Hi,
I want to know difference between the database upgrade patchset, cpu,psu, one off patches and what are the methods of deploying these patches?Refer thread for PUS and CPU:
Difference b/w CPU and PSU
usually *One-off patches are single small size patch used for fixing an existing bug.
PSU and CPU are consolidated of one-off patches, for more information refer thread mentioned above.
These are installed using Opatch utility
Patchests are certainly big in size and most of the bugfixes and new features are included within this, and will upgrade your patchset version.
suppose you Installed patchset 10.2.0.5 on 10.2.0.1 then your database will be upgraded to version *10.2.0.5*.
These patchsets are Installed using OUI
hope help :)
thanks,
X A H E E R

Difference between Object equals() method and ==

Hi,
Any one help me to clarify my confusion.
stud s=new stud();
stud s1=new stud();
System.out.println("Equals======>"+s.equals(s1));
System.out.println("== --------->"+(s==s1));
Result:
Equals ======> false
== ------------> false
Can you please explain what is the difference between equals method in Object class and == operator.
In which situation we use Object equals() method and == operator.
Regards,
Saravanan.K

corlettk wrote:
I'm not sure, but I suspect that the later Java compilers might actually generate the same byte code for both versions, i.e. I suspect the compiler has gotten smart enough to devine that && other!=null is a no-op and ignore it... Please could could someone who understands bytecode confirm or repudiate my guess?Don't need deep understanding of bytecode
Without !=null
C:>javap -v SomeClass
Compiled from "SomeClass.java"
class SomeClass extends java.lang.Object
SourceFile: "SomeClass.java"
minor version: 0
major version: 49
Constant pool:
const #1 = Method       #4.#15; // java/lang/Object."<init>":()V
const #2 = class        #16;    // SomeClass
const #3 = Field        #2.#17; // SomeClass.field:Ljava/lang/Object;
const #4 = class        #18;    // java/lang/Object
const #5 = Asciz        field;
const #6 = Asciz        Ljava/lang/Object;;
const #7 = Asciz        <init>;
const #8 = Asciz        ()V;
const #9 = Asciz        Code;
const #10 = Asciz       LineNumberTable;
const #11 = Asciz       equals;
const #12 = Asciz       (Ljava/lang/Object;)Z;
const #13 = Asciz       SourceFile;
const #14 = Asciz       SomeClass.java;
const #15 = NameAndType #7:#8;// "<init>":()V
const #16 = Asciz       SomeClass;
const #17 = NameAndType #5:#6;// field:Ljava/lang/Object;
const #18 = Asciz       java/lang/Object;
SomeClass();
Code:
   Stack=1, Locals=1, Args_size=1
   0:   aload_0
   1:   invokespecial   #1; //Method java/lang/Object."<init>":()V
   4:   return
LineNumberTable:
   line 1: 0
public boolean equals(java.lang.Object);
Code:
   Stack=2, Locals=2, Args_size=2
   0:   aload_1
   1:   instanceof      #2; //class SomeClass
   4:   ifeq    25
   7:   aload_1
   8:   checkcast       #2; //class SomeClass
   11: getfield        #3; //Field field:Ljava/lang/Object;
   14: aload_0
   15: getfield        #3; //Field field:Ljava/lang/Object;
   18: if_acmpne       25
   21: iconst_1
   22: goto    26
   25: iconst_0
   26: ireturn
LineNumberTable:
   line 6: 0
}With !=null
C:>javap -v SomeClass
Compiled from "SomeClass.java"
class SomeClass extends java.lang.Object
SourceFile: "SomeClass.java"
minor version: 0
major version: 49
Constant pool:
const #1 = Method       #4.#15; // java/lang/Object."<init>":()V
const #2 = class        #16;    // SomeClass
const #3 = Field        #2.#17; // SomeClass.field:Ljava/lang/Object;
const #4 = class        #18;    // java/lang/Object
const #5 = Asciz        field;
const #6 = Asciz        Ljava/lang/Object;;
const #7 = Asciz        <init>;
const #8 = Asciz        ()V;
const #9 = Asciz        Code;
const #10 = Asciz       LineNumberTable;
const #11 = Asciz       equals;
const #12 = Asciz       (Ljava/lang/Object;)Z;
const #13 = Asciz       SourceFile;
const #14 = Asciz       SomeClass.java;
const #15 = NameAndType #7:#8;// "<init>":()V
const #16 = Asciz       SomeClass;
const #17 = NameAndType #5:#6;// field:Ljava/lang/Object;
const #18 = Asciz       java/lang/Object;
SomeClass();
Code:
   Stack=1, Locals=1, Args_size=1
   0:   aload_0
   1:   invokespecial   #1; //Method java/lang/Object."<init>":()V
   4:   return
LineNumberTable:
   line 1: 0
public boolean equals(java.lang.Object);
Code:
   Stack=2, Locals=2, Args_size=2
   0:   aload_1
   1:   instanceof      #2; //class SomeClass
   4:   ifeq    29
   7:   aload_1
   8:   ifnull 29
   11: aload_1
   12: checkcast       #2; //class SomeClass
   15: getfield        #3; //Field field:Ljava/lang/Object;
   18: aload_0
   19: getfield        #3; //Field field:Ljava/lang/Object;
   22: if_acmpne       29
   25: iconst_1
   26: goto    30
   29: iconst_0
   30: ireturn
LineNumberTable:
   line 6: 0
}

Difference between different RFCs

Hi All,
Could you please provide me with some useful material or brief knowledge where i can find out :
what is an s-RFC, t-RFC and q-RFC ? ?
Where all these are used ? ?
And what is the Difference between them ? ?
Regards,
Arkesh Sharma

Please check this link
http://help.sap.com/saphelp_nw2004s/helpdata/en/62/73241e03337442b1bc1932c2ff8196/content.htm
http://help.sap.com/saphelp_nw2004s/helpdata/en/6f/1bd5b6a85b11d6b28500508b5d5211/content.htm
The qRFC Communication Model
qRFC Properties and Possible Uses
All types of applications are instructed to communicate with other applications. This communication may take place within an SAP system, with another SAP system, or with an application from a remote external system. An interface that can be used for dealing with this task is the Remote Function Call (RFC). RFCs can be used to start applications in remote systems, and to execute particular functions.
Whereas the first version of the RFC, the synchronous RFC, (sRFC) required both systems involved to be active in order to produce a synchronous communication, the subsequent generations of RFC had a greater range of features at their disposal (such as serialization, guarantee for one-time-only execution, and that the receiver system does not have to be available). These features were further enhanced through the queued RFC with inbound/outbound queue.
Communication between applications within an SAP system and also with a remote system can basically be achieved using the Remote Function Call (RFC). Here, the following scenarios are possible:
· Communication between two independent SAP systems
· Communication between a calling SAP system and an external receiving system
· Communication between a calling external system and an SAP receiving system
The following communication model shows what these communication scenarios may look like in reality. The actual sending process is still done by the tRFC (transactional Remote Function Call). Inbound and outbound queues are added to the tRFC, leaving us with a qRFC (queued Remote Function Call). The sender system is also called the client system, while the target system corresponds to the server system.
Scenario 1: tRFC
This scenario is appropriate is the data being sent is independent of each other. A calling application (or client) in system 1 uses a tRFC connection to a called application (or server) in system 2. In this scenario, data is transferred by tRFC, meaning that each function module sent to the target system is guaranteed to be executed one time only. You cannot define the sequence in which the function modules are executed, nor the time of execution. If an error occurs during the transfer, a batch job is scheduled, which sends the function module again after 15 minutes.
Scenario 2: qRFC with outbound queue
In this scenario, the sender system uses an outbound queue, to serialize the data that is being sent. This means that function modules which depend on each other (such as update and then change) are put into the outbound queue of the sender system, and are guaranteed to be sent to the target system one after each other and one time only. The called system (server) has no knowledge of the outbound queue in the sender system (client), meaning that in this scenario, every SAP system can also communicate with a non-SAP system. (Note: the programming code of the server system must not be changed. However, it must be tRFC-capable.)
Scenario 3: qRFC with inbound queue (and outbound queue)
In this scenario, as well as an outbound queue in the sender system (client), there is also an inbound queue in the target system (server). If a qRFC with inbound queue exists, this always means that an outbound queue exists in the sender system. This guarantees the sequence and efficiently controls the resources in the client system and server system. The inbound queue only processes as many function modules as the system resources in the target system (server) at that time allow. This prevents a server being blocked by a client. A scenario with inbound queue in the server system is not possible, since the outbound queue is needed in the client system, in order to guarantee the sequence and to prevent individual applications from blocking all work processes in the client system.
Properties of the Three Communication Types
To help you decide which communication type you should use in your system landscape for your requirements, the advantages of the three communication types are listed below:
1. tRFC: for independent function modules only
2. qRFC with outbound queue: guarantees that independent function modules are sent one after each other and one time only (serialization). Suitable for communication with non-SAP servers.
3. qRFC with inbound queue: in addition to the outbound queue in the client system, an inbound queue makes sure that only as many function modules are processed in the target system (server) as the current resources allow. Client and server system must be SAP systems. One work process is used for each inbound queue.
The qRFC Communication Model
Purpose
Communication within an SAP system or with a remote system can take place using Remote Function Call (RFC). This enables the following scenarios:
· Communication between two independent SAP systems
· Communication between a calling SAP system and an external receiving system
· Communication between a calling external SAP system and an SAP system as the receiving system
Implementation Considerations
The following communication model shows how these communication scenarios can occur in practice. tRFC (transactional Remote Function Call) is still responsible for actually sending communications. tRFC is preceded by inbound and outbound queues, which have led to the name qRFC (queued Remote Function Call). The sending system is called the client system, and the target system represents the server system.
There are three data transfer scenarios:
Scenario 1: tRFC
This scenario is suitable if the data being sent is not interrelated. A calling application (or client) in system 1 uses a tRFC connection to a called application (or server) in system 2. In this scenario, the data is transferred using tRFC. This means that each function module sent to the target system is guaranteed to be processed once. The order in which the function modules are executed, and the time they are executed, cannot be determined. If a transfer error occurs, a background job is scheduled that resends the function module after a defined period of time.
Scenario 2: qRFC with Outbound Queue
In this scenario, the sending system uses an outbound queue to serialize the data being sent. This means that mutually dependent function modules are placed in the outbound queue of the sending system and are guaranteed to be sent in the correct sequence, and only once, to the receiving system. The called system (server) has no knowledge of the outbound queue in the sending system (client). Using this scenario, every SAP system can communicate with a non-SAP system (the program code of the server system does not need to be changed, but it must be tRFC-compliant).
Scenario 3: qRFC with Inbound Queue (and Outbound Queue)
In this scenario, in addition to the outbound queue in the sending system (client), there is also an inbound queue in the target system (server). qRFC with an inbound queue always means that an outbound queue exists in the sending system. This guarantees that the sequence of communications is preserved, and at the same time the resources in the client and in the server system are controlled efficiently. The inbound queue is processed using an inbound scheduler, which only processes as many queues in parallel as the current resources in the target system (server) will allow, This prevents a server from being blocked by a client.
Features
Features of the Three Communication Types
To help you decide which communication types you need to implement according to your system landscape and your requirements, the advantages of the three types of communication are explained below:
· tRFC
Suitable only for independent function module calls; the sequence of the calls is not preserved
· qRFC with outbound queue
Function modules in a queue are guaranteed to be processed only once and in sequence (serialization). Also suitable for communication with non-SAP servers.
· qRFC with inbound queue
The function modules created in the outbound queue are transferred from the outbound queue to the inbound queue; the sequence of the function modules is preserved. An inbound scheduler processes the inbound queues in accordance with the specified resources. Both the client and the server system must be SAP systems. One work process is used for each inbound queue.
Queued Remote Function Call (qRFC)
Purpose
All types of applications are instructed to communicate with other applications. This communication may take place within an SAP system, with another SAP system, or with an application from a remote external system. An interface that can be used for dealing with this task is the Remote Function Call (RFC). RFCs can be used to start applications in remote systems, and to execute particular functions.
Integration
In contrast the first version of RFC, synchronous RFC (sRFC), which required both participating systems to be active to form synchronous communication, subsequent generations of RFC now provide a considerably extended range of functions (for example, serialization, guarantee that processing occurs once, and the receiving system does not have to be available). These features were further enhanced through the queued RFC with inbound/outbound queue.
Contents:
The information about qRFC is organized into the following main sections, with more detailed subsections:
The qRFC Communication Model
· qRFC with Outbound Queues
· qRFC with Inbound Queues
qRFC Administration
· qRFC Administration: Introductory Example
· Outbound Queue Administration
· Inbound Queue Administration
qRFC Programming
· qRFC Programming: Introductory Example
· Outbound Queue Programming
· Inbound Queue Programming
· qRFC API
For an introduction to the new bgRFC (Background RFC), use the following links:
bgRFC (Background RFC)
· bgRFC Administration
· bgRFC Programming
Using Asynchronous Remote Function Calls
Asynchronous remote function calls (aRFCs) are similar to transactional RFCs, in that the user does not have to wait for their completion before continuing the calling dialog. There are three characteristics, however, that distinguish asynchronous RFCs from transactional RFCs:
· When the caller starts an asynchronous RFC, the called server must be available to accept the request.
The parameters of asynchronous RFCs are not logged to the database, but sent directly to the server.
· Asynchronous RFCs allow the user to carry on an interactive dialog with the remote system.
· The calling program can receive results from the asynchronous RFC.
You can use asynchronous remote function calls whenever you need to establish communication with a remote system, but do not want to wait for the functionu2019s result before continuing processing. Asynchronous RFCs can also be sent to the same system. In this case, the system opens a new session (or window). You can then switch back and for between the calling dialog and the called session
To start a remote function call asynchronously, use the following syntax:
CALL FUNCTION Remotefunction STARTING NEW TASK Taskname
DESTINATION ...
EXPORTING...
TABLES ...
EXCEPTIONS...
The following calling parameters are available:
§ TABLES
passes references to internal tables. All table parameters of the function module must contain values.
§ EXPORTING
passes values of fields and field strings from the calling program to the function module. In the function module, the corresponding formal parameters are defined as import parameters.
§ EXCEPTIONS
See Using Predefined Exceptions for RFCs
RECEIVE RESULTS FROM FUNCTION Remotefunction is used within a FORM routine to receive the results of an asynchronous remote function call. The following receiving parameters are available:
§ IMPORTING
§ TABLES
§ EXCEPTIONS
The addition KEEPING TASK prevents an asynchronous connection from being closed after receiving the results of the processing. The relevant remote context (roll area) is kept for re-use until the caller terminates the connection.
Transactional RFC (tRFC)
Transactional RFC(tRFC, previously known as asynchronous RFC) is an asynchronous communication method that executes the called function module just once in the RFC server. The remote system need not be available at the time when the RFC client program is executing a tRFC. The tRFC component stores the called RFC function, together with the corresponding data, in the SAP database under a unique transaction ID (TID).
If a call is sent, and the receiving system is down, the call remains in the local queue. The calling dialog program can proceed without waiting to see whether the remote call was successful. If the receiving system does not become active within a certain amount of time, the call is scheduled to run in batch.
tRFC is always used if a function is executed as a Logical Unit of Work (LUW). Within a LUW, all calls
· are executed in the order in which they are called
· are executed in the same program context in the target system
· run as a single transaction: they are either committed or rolled back as a unit.
Implementation of tRFC is recommended if you want to maintain the transactional sequence of the calls.
Disadvantages of tRFC
· tRFC processes all LUWs independently of one another. Due to the amount of activated tRFC processes, this procedure can reduce performance significantly in both the send and the target systems.
· In addition, the sequence of LUWs defined in the application cannot be kept. It is therefore impossible to guarantee that the transactions will be executed in the sequence dictated by the application. The only thing that can be guaranteed is that all LUWs are transferred sooner or later

Difference between different invokeLater() methods

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