protected void setOldValues() throws JRException { if (fields != null && fields.length > 0) { for (int i = 0; i < fields.length; i++) { JRFillField field = fields[i]; field.setPreviousOldValue(field.getOldValue()); field.setOldValue(field.getValue()); field.setValue(dataSource.getFieldValue(field)); } } if (variables != null && variables.length > 0) { for (int i = 0; i < variables.length; i++) { JRFillVariable variable = variables[i]; variable.setPreviousOldValue(variable.getOldValue()); variable.setOldValue(variable.getValue()); } } }