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Reduce Java Code commenting effort using JAutodoc (eclipse plugin)

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JAutodoc is a very useful eclipse plugin which helps in generating javadoc style comments very easily.

Reduce Java Code commenting effort using JAutodoc (eclipse plugin)

     

INTRODUCTION

Summary

JAutodoc is a very useful eclipse plugin which helps in generating javadoc style comments very easily. Apart from adding the template for javadoc style comments for the class/method & attributes it is smart enough to add the description also based on the signatures. This can cover a substantial part of description creation effort for the methods like the setters/getters etc which do not need much human skills to generate the descriptions.

Installation


Unzip the jautodoc_1.5.0.zip file from the eclipse folder.
Verify the following files get copied as shown :
Plugin folder :



Features folder



Restart eclipse.
The JAutodoc feature should be available in preferences



Usage


Select the whole file or method or attribute -> Rightclick -> Add Javadoc



Advantages over eclipse provided Javadoc generation

  • Commenting the whole file in one click is possible, eclipse provides only on element basis
  • File heading is possible
  • Preserves the previous Javadoc comment, where as eclipse blindly adds another comment on the same element if run again.
  • Can define various parameters like $author etc. Where as eclipse has fixed number of parameters and their value is not definable.
  • Can generate descriptions for variables/methods based on some logic, eclipse can generate descriptions for only set / get type methods.

Recommended Settings

General Settings





File Header

What ever is set here, will appear in the top of each Java file.
Sample:
*
* ****************************************************
* * Product Catalog *
* * Release 1 . 00 *
* * ABC Technologis Ltd. *
* ****************************************************
*/

Templates



Define properties








Refer the property as $author in the templates.

Method returning values

/**
* ${e.g(2).rsfu()} .
* @param
* @return ${e.g(1).rsfl()}
* @throws
* @author $author

*/

Eclipse setting for overridden methods





Set it like, as the default eclipse setting generates non javadoc comment, and does not have provision to add project specific description if required.

/**
*
* ${see_to_overridden}
*/

Export Templates


Export templates after preparing on one machine & testing, to the whole team :


Import templates


Importing of the project template by every developer in the team



Example

Before

package VSpring2.service;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
public class PriceIncrease
{
/** Logger for this class and subclasses */
protected final Log logger = LogFactory.getLog(getClass());
private int percentage;
public void setPercentage(int i) {
percentage = i;
logger.info("Percentage set to " + i);
} public int getPercentage() {
return percentage;
}
}

After JAutodoc


/*
* ****************************************************
* * SPRING REFERENCE APPLICATION *
* * Release 1.00 *
* * Technology Solution Group - MFG BU *
* ****************************************************
*/
package VSpring2.service;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* The Class PriceIncrease.
*/
public class PriceIncrease
{
/** Logger for this class and subclasses */
protected final Log logger = LogFactory.getLog(getClass());
/** The percentage. */
private int percentage;
/**
* Sets the percentage.
*
* @param i the new percentage
*/
public void setPercentage(int i) {
percentage = i;
logger.info("Percentage set to " + i);
}
/**
* Gets the percentage.
*
* @return the percentage
*/
public int getPercentage() {
return percentage;
}
}
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Posted on: December 15, 2008

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