How to create jrxml file

[jijynasu]

I have data in an arraylist and that i want to print in the form of graph. I don't want to set any connection in the iReport and am not writing any sql-querry in iReport. How can i create a temlate(jrxml file) so that i can can pass my value to generate a graph. My application is built on eclipse. plz help...

[aditya_gupta]

HI,

You can use set the datasource in ireport to JavaBean Collection Datasource, which allow us to print the data using purposely written java classes.

 

The JavaBean set datasource uses an external class (named Factory) to produce some objects (the JavaBean) that constitute the data to pass to the report.

 

In ireport, Goto Data -> Connections / Datasources -> new.

 

The parameters for the datasource configuration will be:

Name: TestFactoryDataSource(user defined)

Type of Datasource : JavaBean set Datasource

class: Test (name of fully classified classpath which is having collection)

Method to call: name of method in class

Return type: Collection of JavaBean

 

and then Test the connection. After succesful connection, save it.

 

One more thing the class or package should be in classpath of ireport.

 

Go to report query section, select javabean data source tab and type the class name and click read attributes.

 

Your are done.

 

I think this will work for you.

 

Aditya

[jijynasu]

Thanks for the reply Aditya,

Now the problem is i am new to the iReport and Jasper. Would you plz tell me in steps What to do and where to do?

[aditya_gupta]

Hi,

 

It is very simple. You put ur arraylist in a class. Here is a sample code.

 

public class Test

{

public static java.util.ArrayList generateCollection()

{

java.util.ArrayList list = new java.util.ArrayList();

list.add(20);

list.add(34);

list.add(56);

 

return list;

}

}

 

Put this clas file in the class path of ireport. for this goto option menu -> classpath and select Add folder and provide the path of your class file and save classpath .

 

after all these,

 

Goto Data -> Connections / Datasources -> new.

 

The parameters for the datasource configuration will be:

 

Name: TestFactoryDataSource(user defined)

 

Type of Datasource : JavaBean set Datasource

 

class: Test (name of fully classified classpath which is having collection)

 

Method to call: name of method in class

 

Return type: Collection of JavaBean

 

and then Test the connection. After succesful connection, save it.

 

Go to report query section, select javabean data source tab and type the class name and click read attributes.

 

 

I think this will help you

 

Aditya

[aditya_gupta]

Hi,

 

It is very simple. You put ur arraylist in a class. Here is a sample code.

 

public class Test

{

public static java.util.ArrayList generateCollection()

{

java.util.ArrayList list = new java.util.ArrayList();

list.add(20);

list.add(34);

list.add(56);

 

return list;

}

}

 

Put this clas file in the class path of ireport. for this goto option menu -> classpath and select Add folder and provide the path of your class file and save classpath .

 

after all these,

 

Goto Data -> Connections / Datasources -> new.

 

The parameters for the datasource configuration will be:

 

Name: TestFactoryDataSource(user defined)

 

Type of Datasource : JavaBean set Datasource

 

class: Test (name of fully classified classpath which is having collection)

 

Method to call: name of method in class

 

Return type: Collection of JavaBean

 

and then Test the connection. After succesful connection, save it.

 

Go to report query section, select javabean data source tab and type the class name and click read attributes.

 

 

I think this will help you

 

Aditya

[jijynasu]

Hi Aditya,

Although i have done all the things you have said but the problem is how those data will map to aparticular chart in the report. I mean there must be some chart name in the jrxml file for each chart and same will be refered in the java code.

In my case whatever data i am getting from the database is random(values of machine counters). x-axis is the time and y-axis is the random counter value.

Also i want to know that can i make jrxml file dynamically i.e through java program.

please help me to solve the issue.