Premila Devi Dayalan

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since Jul 19, 2009
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Recent posts by Premila Devi Dayalan

Dear All,

“JMF Not work” as it was not supporting the “RSTP”and “SDP”.Furthermore,I am not very sure, is JMF will supported the “RSTP” and “SDP”?Please guide .

When I try to connect from my “PC Desktop” by connecting via rtsp://192.168.3.154/live.sdp,to IP Camera,with JMF Software, it was not connected. Any other solution?. I am not very sure as well, Is the JMF will supported by “RSTP” and SDP.

Please find attached as below.

Main Problem:
has anybody figured out how to get JMF to work with SDP files. I'm using Darwin Streaming Server and accessing the SDP files via JMF rtsp (e.g. rtsp://...ip.../file.sdp)

Thanks
Dear Sir,

It is not a context sir,and it is actually a "Reconciliation Report",and I am quite confused on the used sir.

As per my concern "reconciliation" is used for the "comparisons",example a comparisons between a "cam-systems" with "pollux-system".

Please correct me,if I am wrong sir.

Thank you.
13 years ago
Dear Sir,

What is the meaning of Reconciliation in java ?

Please advise.

Thanks.?
13 years ago
so sorry.
chan mei ling
13 years ago

Dear All,

I like to know what "messageBundle = new MessageBundle();" maintainly do in JSP.

I am confuse on the phrase of "bundle" as the code list above.

Chan Mei Ling

13 years ago
Dear Sir,

Good Day to you.

Why Schema is needed in Database [Hibernate]?

Example :



1.what is the different between ? These is represent ,Schema_name.Table_Name ? Am I right ?Please correct me if wrong.
2.what is the different between ? These is represent ,Schema_name.Table_Name.Table Reference Name? Am I right ?I am not sure on these,dramatically.
3.What and stand for?

Thanks.

Cheers,
Chan Mei Ling
Dear Sir,

Null fields in a database (bad design practice).Specifiying a field as NOT NULL means when you insert a new record you will always have a value to fill that column. It allows the database system to optermise your database and as NOT NULL are used for primary keys for the database,but programmatically [JAVA] ~ Confused :

Example:



Please correct me,if wrong.

Programmatically,at here we are checking the asset.getAssetModel().getId() == null whether the reference pointed to by that method call and the reference (probably 0) pointed to by null are the same. That checking, the way you have written it, is done by the JVM looking at heap memory.

and basically at my code, asset.getAssetModel().getId() is getting the asset_model_id from the database.At here,are it checking,whether asset_model_id is null or not null? Please advise

Thanks.

Chan Mei Ling

13 years ago

Dear Sir,

if (asset.getAssetModel().getId() == null) {
assetModelService.add(asset.getAssetModel());
} else {
asset.setAssetModel(assetModelDao.findById(asset.getAssetModel().getId()));
}

So,at these situation,it will check wherever,the (asset.getAssetModel().getId() == null),and **where it will check the **NULL Conditions,is it in the database,refering to **asset.getAssetModel().getId() method,or etc ? How it says/Check "Null"?

Chan Mei Ling
13 years ago
Dear Sir,

NOT NULL Example :
"not null" means that the refernce is pointing to some object and stores "a memory address about how to get to the object in the memory"






and



Null Example :
a reference having a value null means that it doesn't point to any object.it is simply declaring a refernce variable







But here,it is "pointing to some object as well"

Chan Mei Ling
13 years ago
Thanks.

From: Chan Mei Ling
13 years ago
Hi,
I've a simple object class as testObj.java with getter and setter methods.
In my code i need to check if the testObj object is null.

My code is :
testObj test = new testObj();
//invoke a method A which returns test as return type
if(test==null || test.equals(""))
{
System.out.println("The test object is null);
}

But i'm not getting the expected results. How to check if this test object is null?

One more question?
what is the different between null and not null in java?

From:Behalf of Premila Devi
Name: Yong Mei Ling
13 years ago
Dear Sir,

Referring to these code:



How it is integrated with database sir,using ORM.Just for my undestanding itself.

Just a basic ideas sir.

Thanks.
Dear Sir,

I am using Object-relational_mapping (ORM) tools here sir.

Thanks.
Dear Sir,

These sentences,I am not very sure,It was right or wrong,do I am asking your suggesstions sir?

Getters and setters do not operate during the creation of the object, but by retrieval from the database or creation by instantiating the class;




Question:
1.I like to know,how setter and getter integrated with database,Technically,how the are integrated the data as per requested.
I know that mainly,we something as "ABC",and ask the machine to the value of the "ABC",that we already ,defaultly.

2.At here,I like to know,techically,how it work sir.

Thanks.