I've searched google and Stackoverflow but I just can't find an answer to my question.
I'm currently using Jaspersoft Studio 5.6.2 final and I'm trying to get a custom function to show up in my Expression Editor, but what ever I try I just cannot get the Category and function to show.
I started following the tutorial on https://community.jaspersoft.com/wiki/jaspersoft-studio-expression-editor-how-extend-it-and-contribute-your-own-functions-part-2-0. Generating all the necesarry files using the Functions Librry wizard (using File > New > Other > Jaspersoft Studio > Functions Library) and creating the function itself was easy.
The way the *.properties files are supposed to be configured is not very clear in the tutorial so I've also looked at http://jasperreports.sourceforge.net/sample.reference/functions/index.html#functions, after making adjustments to the properties file the custom function and category are still not showing
I've tried testing my code directly inside Jaspersoft, exporting it to a jar file, creating the jar file in another Eclipse and restarting Jaspersoft Studio. Nothing works.
Below is are the contents of my files.
The category class
package net.sf.jasperreports.functions.custom;
import net.sf.jasperreports.functions.annotations.FunctionCategory;
// I've also tried @FunctionCategory("Able")
@FunctionCategory()
public final class Able {
}
The class containing the function
package net.sf.jasperreports.functions.custom;
import net.sf.jasperreports.functions.annotations.Function;
import net.sf.jasperreports.functions.annotations.FunctionCategories;
import net.sf.jasperreports.functions.annotations.FunctionParameter;
import net.sf.jasperreports.functions.annotations.FunctionParameters;
import net.sf.jasperreports.functions.standard.TextCategory;
@FunctionCategories({ Able.class, TextCategory.class })
public final class AbleFunctions
{
/**
* Returns a barcode the custom font IDAutomationSHI25M will understand based on the page number
* and whether or not the current pagenumber is the lastpage
* @param pagenumber
* @param lastpage
* @return
*/
@Function("CREATE_BARCODE")
@FunctionParameters({
@FunctionParameter("pagenumber"),
@FunctionParameter("lastpage")})
public static String CREATE_BARCODE(Integer pagenumber, boolean lastpage)
{
String[] barcodeArray = {"!","\"", "#", "$", "%", "&", "(", ")", "*", "+", ",", "-", ".","/",
"0", "1", "2", "3", "4", "5", "6", "7", "8","9", ":", ";", "<", "=", ">", "?", "@",
"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q",
"R", "S", "T", "U", "V", "W", "X", "Y", "Z", "[", "\\", "]", "^","_", "`","a", "b",
"c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s",
"t", "u", "v", "w", "x", "y", "z", "{", "|", "}", "~", "┼", "ã", "Ã", "╚", "╔", "╩"};
String onePage = barcodeArray[1] + barcodeArray[1];
String middlePagePrefix = barcodeArray[0];
String lastPagePrefix = barcodeArray[10];
// There are a couple of specific conditions that will generate a specific outcome.
// Checking these conditions first
if (pagenumber == 1 && lastpage) {
return onePage;
} else if (pagenumber > 1 && lastpage) {
return lastPagePrefix + barcodeArray[pagenumber];
} else {
return middlePagePrefix + barcodeArray[pagenumber];
}
}
}
jasperreports_messages.properties file
net.sf.jasperreports.functions.custom.Able.CREATE_BARCODE.description = Provide the current pagenumber and a boolean property telling if this is the lastpage and this method will return a string that can be turned in a barcode
net.sf.jasperreports.functions.custom.Able.CREATE_BARCODE.lastpage.description = A boolean value telling if the current page number belongs to the lastpage or not
net.sf.jasperreports.functions.custom.Able.CREATE_BARCODE.lastpage.name = lastpage
net.sf.jasperreports.functions.custom.Able.CREATE_BARCODE.name = CREATE_BARCODE
net.sf.jasperreports.functions.custom.Able.CREATE_BARCODE.pagenumber.description = The current page number
net.sf.jasperreports.functions.custom.Able.CREATE_BARCODE.pagenumber.name = pagenumber
net.sf.jasperreports.functions.custom.Able.description = Custom Able functions for Jasperreports
net.sf.jasperreports.functions.custom.Able.name = Able
jasperreports_extension.properties
net.sf.jasperreports.extension.registry.factory.functions=net.sf.jasperreports.functions.FunctionsRegistryFactory
net.sf.jasperreports.extension.functions.ablefunctions=eu.able.functions.AbleFunctions
As you can see in the AbleFunctions class I've also tried to add the function to the existing TextCategory class, but this also has no effect.
Does anybody have a clue what the problem could be? This is already taking me days without any succes so any help would be great!
