Hey good day, im having a hard time figuring out how to pass data from a custom JR Datasource to a chart, I got the data passed to the report however whenver I try to pass it to a chart it doesnt show anything. heres the code below for the datasource class: package MyDataAdapt; import java.sql.Date; import java.util.ArrayList; import java.util.HashMap; import net.sf.jasperreports.engine.JRDataSource; import net.sf.jasperreports.engine.JRException; import net.sf.jasperreports.engine.JRField; public class GoImplementation implements JRDataSource { public GoImplementation() { // TODO Auto-generated constructor stub } /** * For this data adapter the informations are embedded in the code */ private static final Integer[] lotNum = {33301141,33301143 }; private static final Integer[] level= {1,3}; private static final double[] mean= {4.49,457.04}; private static final double[] SD= {0.30,22.58}; private static final double[] CV= {6.79,4.94}; private static final Integer[] N= {54,53}; private HashMap<String, String> capitalCities = new HashMap<String, String>(); private static final double[] mean2= {3.92,465.95}; private static final double[] SD2= {0.35,31.11}; private static final double[] CV2= {9.04,6.68}; private static final Integer[] N2= {333,340}; private static final String[] department = {"GENERAL"," "}; private static final String[] instruementArray = {"ARCHITECT cI4100-I1SR"," "}; private static final String[] test = {"Human Chronic Gonadotropin (BhCG) {7K78}(mIU/mL"," "}; private static final String[] method = {"NONE"," "}; private static final String[] reagentArray = {"ABBOTT"," "}; private static final String[] month = {"January, 2015"," "}; private static final String[] shift = {"All"," "}; private static final String[] qcProduct = {"MULTICHEM IA PLUS(05P76-10)"," "}; private static final Integer[] days = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30}; HashMap<String, Integer> lotp = new HashMap<String, Integer>(); HashMap<String, Double> meanp = new HashMap<String, Double>(); HashMap<String, Double> sdp= new HashMap<String, Double>(); HashMap<String,Integer> dayp = new HashMap<String, Integer>(); /** * Variable to store how much records were read */ private int counter = -1; /** * Variables to store the number of fields, and their names, in the report */ private HashMap<String, Integer> fieldsNumber = new HashMap<String, Integer>(); /** * Method used to know if there are records to read. */ private int lastFieldsAdded = 0; @Override public boolean next() throws JRException { if (counter<lotNum.length-1) { counter++; return true; } return false; } /** * This method is called for every field defined in the report. So if i have 2 fields it is called 2 times for every record, and * for each of them it must provide a value. * The parameter can be used to understand for which field is requested, in fact it contains the name of the requested field. This * data adapter is done with the goal of return two values, a name and an age. An easy option would be expect a field with the name * "Name" and one with name "Age". But we can do something more flexible, in this case we will enumerate all the fields requested and * and the first two will be assumed to be for name and age, for all the others will be returned an empty string. So we can have a report * with more than two fields, but the name and the age will be returned each time only for the first two. * * If this example is too much complex refer to the method getFieldValue2, where is shown the first explained, and simple solution, where we * expect two fields with a precise name. */ @Override public Object getFieldValue(JRField jrField) throws JRException { Integer fieldIndex; if (fieldsNumber.containsKey(jrField.getName())) { fieldIndex = fieldsNumber.get(jrField.getName()); System.out.println("WHat:"+fieldIndex); } else { fieldsNumber.put(jrField.getName(), lastFieldsAdded); fieldIndex = lastFieldsAdded; lastFieldsAdded ++; } if (fieldIndex == 0) return lotNum[counter]; else if (fieldIndex == 1) return level[counter]; else if (fieldIndex == 2) return mean[counter]; else if (fieldIndex == 3) return SD[counter]; else if (fieldIndex == 4) return CV[counter]; else if (fieldIndex == 5) return N[counter]; else if (fieldIndex == 6) return mean2[counter]; else if (fieldIndex == 7) return SD2[counter]; else if (fieldIndex == 8) return CV2[counter]; else if (fieldIndex == 9) return N2[counter]; else if (fieldIndex == 10) return department[0]; else if (fieldIndex == 11) return instruementArray[0]; else if (fieldIndex == 12) return test[0]; else if (fieldIndex == 13) return method[0]; else if (fieldIndex == 14) return reagentArray[0]; else if (fieldIndex == 15) return month[0]; else if (fieldIndex == 16) return shift[0]; else if (fieldIndex == 17) return qcProduct[0]; else if (fieldIndex == 18) return days; return ""; } /** * Example of a simpler getFieldValue, not actually used */ public Object getFieldValue2(JRField jrField) throws JRException { if (jrField.getName().equals("lotNum")) return lotNum[counter]; else if (jrField.getName().equals("level")) return level[counter]; lotp.put("lotnum",33301141); lotp.put("lotnum",33301141); meanp.put("Mean", 4.49); meanp.put("Mean",457.04); sdp.put("SD", 0.30); sdp.put("SD", 22.58); return ""; } /** * Return an instance of the class that implements the custom data adapter. */ public static JRDataSource getDataSource(){ return new GoImplementation(); } }
