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info of JRExpression & Implementing Classes


2004 IR Help

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By: JAmol - jamol

info of JRExpression & Implementing Classes

2005-05-21 02:40

hello friends ,

I am designing report using jasper API. no tool no xml.

There is lot of use of JRExpression and its implementing classes in code.

can any one give me details of methods they have with suitable examples.

The knowledge I have is, with JRDesignExpression class which has methods like

expression.setValueClass(className);

expression.setText(name);

 

className is suitable class from java API and name can be like $F{FieldName} or $V{VariableName}

can there be more values we can pass???

 

And also

There are methods like

setConnectionExpression(JRExpression);

setDataSourceExpression(JRExpression);

setExpression(JRExpression);

setParametersMapExpression(JRExpression);

setPrintWhenExpression(JRExpression);

and many more are there .......

can you give me details about parameter JRExpression these function are taking .

 

Code will be helpful .

 

regards,

JAmol

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