Dynamic property performance

Hi
I'm trying to create a quick access to a object with a String as it's key, so I wrote:
"var map:Object = {};
map["key1"] = object1;
map["key2"] = object2;
Question : Is there any difference about the performance between long key and short key(the length of the String used as a key)? If the key contains many charactors, will it slow down when accessing that object? Thank you for any information!

Thank you! relaxatraja, you've help a lot.

Similar Messages

How to create a dynamic property in JavaFX

public class Person() {
private SimpleStringProperty _Name = new SimpleStringProperty();
public final String NameGet() {
return this._Name.getValue();
public final void NameSet(String Name) {
this._Name.setValue(ColumnName);
public StringProperty NameProperty() {
return this._Name;
private SimpleStringProperty _SurName = new SimpleStringProperty();
public final String SurNameGet() {
return this._SurName.getValue();
public final void SurNameSet(String SurName) {
this._Name.setValue(ColumnName);
public StringProperty SurNameProperty() {
return this._SurName;
How to create a dynamic property in JavaFX ?
ObservableMap, ObservableMapValue, MapPropertyBase, MapProperty
Which one should I use. Can you give an example?

I'm not sure what you mean by "dynamic property"; can you be more explicit?
Your code creates two properties that can be read, written, and observed for changes, though it's probably better to use the standard naming scheme for the methods (e.g they should be getName(), setName(...) and nameProperty()).
An ObservableMap is an extension of the java.util.Map interface that can be observed; i.e. you can register a listener that will be notified if a key-value pair is added or removed from the map.
ObservableMapValue is an interface that defines an observable reference to an ObservableMap; i.e. it has a get() method returning an ObservableMap and a set(...) method taking an ObservableMap. You can register a ChangeListener which is notified when the set(...) method is called. It additionally functions as an ObservableMap, so you can also register listeners that get notified when key-value pairs are added or removed from the underlying observable map.
MapProperty and MapPropertyBase are effectively partial implementations of ObservableMapValue. SimpleMapProperty is a full implementation.
If you just need a single ObservableMap (i.e. not an observable reference to one), then the FXCollections.observableHashMap() factory method will provide one.

Automatically add a dynamic property to a newly created table

hi,
how can i customize data modeler so that whenever a table/entity is created, a dynamic property named myprop1 is attached to it.
and further more, i hope this dynamic property be included in the generated reports.
thanks.

Hi Srv-02,
You can create a custom action to add Watermark for all the generated pdfs.
You can also accomplish this via Javascript: https://acrobatusers.com/tutorials/watermarking-a-pdf-with-javascript
Regards,
Rave

Creating a Dynamic Property LIst

Hi everyone,
How to make a dynamic Property list in lingo
Actually the problem is I am fetching a list of Columns from
the databse which may vary so I want to make a dynamic PropertyList
in which I can Set the property and the values based on the number
of colums in a Database
For Example: In the DB, I have a Table which contains
follwing columns
FName, LName,CompName, Age, Address1, Address2, Email,
website
Now I will select specific colums based on some condition. So
I will be storing the result which would come in a property list.
So this List needs to be Dynamic i.e it should be getting created
based on the colums returned from the query.
Suppose for a specific condition i get Fname, Lname, Email as
a result so my List should look some thing like This
objRecord = objResult.rows[1] --Row Returned from the
Database
listQueryResult = [#FirstName : objRecord[1], #LastName :
objRecord[2], #Email : objRecord[3] ]
The Above List shoud be based on nos of colums returned from
the Query
Is there any way by which i can create such a Dynamic
Property List.
I hope the Question is Clear
Hope to get the answer at the earliest
-Thanks and Regards
-Atul Saxena

You can create a new empty property list like this:
listQueryResult = [:]
To add a property/value pair, you can use:
listQueryResult[
<propertyName>
] =
<value>
or:
listQueryResult.setaProp(
<propertyName>
<value>
The above two commands will add the property if it doesn't
exist, or update a value if the property name is already present in
the list.
You may not be aware that you can use strings as property
names instead of symbols if you like, which you might find easier.
Couple of examples following your example:
listQueryResult = [:]
objRecord = objResult.rows[1] --Row Returned from the
Database
listQueryResult["FName"] = objRecord[1]
listQueryResult["LName"] = objRecord[2]
(etc)
Or, if you also have a list of the fieldnames returned from
the db:
listQueryResult = [:]
fieldNames = objResult.fieldNames --Field names for records
returned from Database
objRecord = objResult.rows[1] --Row Returned from the
Database
repeat with n=1 to fieldNames.count
thisFieldName = fieldNames[n]
thisFieldValue = objRecord[n]
listQueryResult[thisFieldName] = thisFieldValue
end repeat
hope this helps!
- Ben

Property performance issues cpu 40%

All
We are using a tableView with maybe 10+ SimpleIntegerProperty or SimpleStringProperty fields on our object to update values on the table. When we push data into the table we are seeing the CPU at 40%. When profiling the application all of the issues seem to point to the Simple*Property objects. Is there a way to update the TableView without using these property objects so we can compare performance?

I haven't ever come across performance problems like you describe with so few items. There are some issues with really large tables, which I think have been addressed in the latest version (ea b96) of JavaFX 8 (or perhaps in the next snapshot release): see JavaFx tableview sort is really slow how to improve sort speed as in java swing - Stack Overflow for example. (In a nutshell, the PropertyValueFactory is really inefficient if you only provide a getXXX() method and no xXXProperty() method in your data representation.)
Can you post a simple example that reproduces the issue?

How do I build a dynamic property list?

It has been a long time and all my old Authorware stuff is in the shed somewhere. I want to dynamically build a property list statement in Authorware 7
I figured it was something like property_list[1]["#"^variable_text]
but this doesn't seem to be working so I just wanted to check I was using the correct syntax?

Found some old code.
I think you need to do
property_text = "#"^variable_text
then you can do the following
property_list[1][property_text]
That seemed to work.

LDAP- large dynamic groups - performance

A dynamic group is to a static group what a view is to a table
A group is to its members what a table or view is to its records.
When the memebrs of a dynamic group is very large are there any performance problems or is that eliminatable by some indexing means?

Just an FYI ...
I found out from iPlanet that this is a bug in SP3 and will be fixed in SP4.
In the meantime, you can call tech support and get a patch.
Matt
"Matt Raible" <[email protected]> wrote in message
news:9nldgs$[email protected]..
I discovered today that the dynamic group does not seem to work for
form-based authentication with iPlanet App Server. I have a group,
Employees, in my LDAP server, and it has a dynamic group configured as
ldap:///o=douglas.co.us??sub?dcRoles=ttEmployee, where each user has a
custom attribute, dcRoles. I can test this dynamic group and expectedusers
are found.
However, I cannot authenticate with a user in this group when "Employees"is
my configured role to authenticate with.
If I open the group Employees in my LDAP Server, and under the Members,
Static Group tab - I add a user, I can authenticate with them.
I also tried adding "ttEmployee" as well as "Employee" to my deployment
descriptors - but no luck. The method of adding a user (above) is the only
way I found to work.
Can someone shed some light on this?
Thanks,
Matt

Doubt about abap dynamic with performs.

Good Morning Gurus.
1-I have the tables of price in internal table ( t_a530 , T_a951 ... etc ).
2- I need filter data by field datbi and datab.
3-Can I create a perform to pass a table and after pass other table with other format to taht same perform ?
4-It abap dynamic.
5-II do not want to create several performs because I can make only one (with my logic to all tables)
Can you help me?
Thanks.

The program is already doing this except:
    where DATBI => sy-datum
         and DATAB <= sy-datum.
in my program is:
    where DATBI => sy-datum
if I change it then dont select duplicate matnrs?
because today my problem is it:
He slects all before sy-datum then if the material has 3 entries he show all.
And I need the most current only.

Metadata Extention for Dynamic Property Values

We need to get dynamic values on XML Form based on the logged in user. Implemented a Metadata Extension class for this purpose. Followed the link in SDN to create the service and required classes : http://www.sdn.sap.com/irj/scn/index?rid=/library/uuid/645d4357-0701-0010-07bd-a2ea8c4d0aaf
Used the following code to get the user id:
IResourceContext rc = metaContext.getResourceContext();
com.sapportals.portal.security.usermanagement.IUser usr = rc.getUser();
portalUID = usr.getUMEUser().getUniqueName();
However, portalUID is coming as "CMADMIN_SERVICE" instead of logged-in userid. Please note that the property created for this purpose is a Multi-value allowed and displaying the values in a Combo box.
Questions:
How do we get the logged-in user ID
Noticed that this class is getting executed when clicked on Save of XML Form (during runtime); Is there a way to avoid it?
All together, is there any other approach to get dynamic values to be displayed in XML Form?
Any help is greatly appreciated...
Thanks

Hi Ranganath,
I see...
In that case, I can only suggest the direction I would take, since I didn't do it myself:
The above example uses the property renderer 'multi_dependence'.
I would try to find its implementing class, decompile it, and see if it gives any clues rergarding to how to implement your case.
Hope that helps,
Yoav.

How to create alv table dynamically by performing action on the button.

Hi all,
my requirement is to create alv table dynamically.
that is i will create two buttons
1) show alv table
2) close alv table
if user selects show alv table then the alv table should be displayed.
and if user selects clsoe alv table then the alv table should be closed.
to create alv table dynamically i have followed this procedure.
under view properties i have added salv_wd_table component. then under the action of showalvbutton i went to code wizard and i have selected instantiate used component component use salv_wd_table. the following code will be generated
with this code i am unable to display alv table dynamically correct me where i went wrong kindly send me the necessary steps how to create alv table dynamically
data lo_cmp_usage type ref to if_wd_component_usage.
lo_cmp_usage = wd_this->wd_cpuse_salv_wd_table( ).
if lo_cmp_usage->has_active_component( ) is initial.
lo_cmp_usage->create_component( ).
endif.
to close table i have used the following code. with this code i am able to achieve the functionality to delete the alv table
data lo_cmp_usage type ref to if_wd_component_usage.
lo_cmp_usage = wd_this->wd_cpuse_salv_wd_table( ).
if lo_cmp_usage->has_active_component( ) is initial.
else.
lo_cmp_usage->Delete_component( ).
endif.
Thanks & Regards,
Naveen
Edited by: naveen.webhelp on Feb 10, 2011 5:52 AM

Hi
ALV table will be shown in the viewcontainerUI element.
it is shown there empty if you dont fill the node bound to the data node of the interface controller of the comp usage
SALV_WD_TABLE.
and if you are not getting the table filled in the first place.
then check have you mapped the DATA node to some node in the comp controller
wht basically is your requirment is that you want to show ALV gird on click of one button and delete it on click of other button.
there are many ways to do so.
best way is control the visiblity of the viewcontainer UI element which containes the TABLE view of SALV_WD_table comp.
create an attribute of type WDUI_VISIBILITY name say VIS.
now go to the layout and bound hte visible property of the viewcontainer to this attribute VIS.
then in the showalv grid button's eventhandler write
wd_context->set_attribute(
name = 'VIS'
value = '02'
and in the wddoinit and delete alv grid button's event handler write
wd_context->set_attribute(
name = 'VIS'
value = '01'
thanks
sarbjeet singh

Set dynamic Property Value

Hi Expert,
Can we set Property values dynamicly from BPC excel.
eg/ Let say we have Dimension called Project which has a ID Proj1 with property FM_AMT.
Can we set this FM_AMT from the BPC excel ? do we have any Function ?
Regards
Gayu

Hi Gayu,
You can use EVPRO to get this property in BPC excel. The syntax is =evpro(appname, Member, property). In your case, it is
=evpro("App","Proj1","FM_AMT")
Hope this helps.
Regards,
Shoba

Dynamic lists performance impact

Hi
I am interested in finding out what the performance impact of using Site Studio dynamic lists fragments on a web page are. Is the query executed each time the page is loaded? If I place more than one dynamic lists on a page how will that impact the performance?
Thx,
Vaylee

Hi Vaylee,
unless you cache your results query executes each time. I guess the impact will not be that high, as pages are processed before they are served from UCM this will add only a little to the existing process.
cheers,
sapan

Dynamic Property Editor for a Component

All,
Have a requirement to show the properties of a given component when the component is selected by the user in a nice property editor within Webcenter. The component will be part of a Fusion Web application (ADF). Can we surface the properties of the component via introspection at runtime from a Fusion Web application (ADF) within WebCenter for DT@ RT. Does Webcenter have any property editor which introspects and displays the component properties, say the properties of a Java Data Transfer Object in this case.
Thank you.

well your requirement is similar that ADF Faces Rich client demo provides.
Unfortunately the online hosted version is not working but you can download the code and run http://www.oracle.com/technetwork/developer-tools/adf/documentation/adf-faces-rc-demo-083799.html
http://www.oracle.com/technetwork/developer-tools/jdev/index-098948.html
Zeeshan

Dynamic client performance enhancement

Hi ,
I am using DII to invoke web services. I know there is a performance overhead
with DII but I need it to use it as it suits my requirement .
How could the performance be improved when DII is used ?
Are client side stubs created when web service is invoked using DII ( i did not
see any stub classes created on my file sysyem, is it stored in memory). If yes
which method creates it,
service.createCall() or call.invoke(parmas).
I was also thinking whether the call object which is not serialisable could be
cached.So that I can invoke just the call.inovke(different parameters) method
for the subsequent requests.
Please let me know.
Your help will be highly apreciated.
-Amol

You need to use DII only if the web service that
is invoked is not described using a WSDL.
If WSDL is available than clientgen can generate
a stub from it. A generated stub is type safe and
easy to use.
Regards,
-manoj
http://manojc.com
"Amol Desai" <[email protected]> wrote in message
news:3f02d601$[email protected]..
>
Hi Neal,
If the two approaches are simiilar in performance , then
why/where should stub based call be used.
Thanks,
-Amol
"Neal Yin" <[email protected]> wrote:
Hi Amol,
Each service.createCall() creates a new call instance. You can reuse
the
same call for multiple invocations. Did you compare the DII performance
and
stub performance? There should no significant performance difference.
Thanks,
-Neal
"Amol Desai" <[email protected]> wrote in message
news:3f019f3e$[email protected]..
Hi ,
I am using DII to invoke web services. I know there is a performanceoverhead
with DII but I need it to use it as it suits my requirement .
How could the performance be improved when DII is used ?
Are client side stubs created when web service is invoked using DII( i
did not
see any stub classes created on my file sysyem, is it stored in
memory).
If yes
which method creates it,
service.createCall() or call.invoke(parmas).
I was also thinking whether the call object which is not serialisablecould be
cached.So that I can invoke just the call.inovke(different
parameters)
method
for the subsequent requests.
Please let me know.
Your help will be highly apreciated.
-Amol

Photoshop, smart objects and dynamic filters performance issues

Hello,
I am quite new to Photoshop, after several years with Capture NX 2 to process thousands of NEF and RW2 files (RAW from Nikon and Panasonic).
I use Photoshop to read RAW pictures, convert them to a smart object, then apply several dynamic filters, mainly from the Nik Collection (Dfine, Color Efex Pro, Sharperner Pro), sometimes Topaz Denoise. I do that with actions, so I can batch process many pictures.
But sometimes I have to manually adjust some settings, and this where I do not really understand the way Photoshop works. If I have to adjust let say the last filter on the stack, Photoshop reprocesses all the filters below, which can be very tedious as this takes lot of time.
Is there a way to tell Photoshop to keep all intermediate data in memory, so if you have to adjust one of the last filters the process starts immediately?
Any help would be greatly appreciate.
Frederic.

Thank you Chris.
I am surprised, as for years there has been a lot of discussions about Capture NX2 which was supposed to be slow. In fact, when using the same filters (+ Nik Color Efex), NX2 is much much faster than Photoshop, and when you have to make an adjustment in any of the setttings, you can do that immediateley.
Of course, Photoshop is completely opened and NX2 totally closed (and now not supported anymore).
But, I really don't know how to adapt my workflow, except buying the most powerful PC possible (I already have 2 which are quite powerful), and this will still be far from being comfortable. I am used to tune manually many many pictures (adjust noise reduction, sharpening, light, colors ...), and this was quite fast with NX2.
I am probably not on the correct forum for this, and I will try to investigate elsewhere.
Anyhow, thank you for your answer.
Frédéric

Dynamic property performance

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