java - Serialization of a class inside the class -


i'm trying make class singleton have serialize method. objective serialize singleton in own function. there way serialize class inside class ?

here sample of tried :

public void serialize() {     singleton commit = this.getinstance();      try {         fileoutputstream fileout = new fileoutputstream(new config().getdatafile());         objectoutputstream out = new objectoutputstream(fileout);         out.writeobject(commit);         out.close();         fileout.close();     } catch (exception e) {         system.out.println("unable commit database changes.");         e.printstacktrace(system.out);     } }

and stack trace below :

unable commit database changes. java.io.notserializableexception: com.cuistot.data.singleton     @ java.io.objectoutputstream.writeobject0(objectoutputstream.java:1184)     @ java.io.objectoutputstream.writeobject(objectoutputstream.java:348)     @ [...].singleton.serialize(singleton.java:50)     [...]

does class implement serializable?

looking @ source code for objectoutputstream.writeobject0, throws notserializableexception if object not serializable.


Comments

Post a Comment

Popular posts from this blog

javascript - AngularJS custom datepicker directive -

i make custom datepicker directive custom template. but have no idea how start building it... how include date data directive? i appreciate guide or give me advice work on more precisely. it might you! follow below steps html code sample: <label>birth date</label> <input type="text" ng-model="birthdate" date-options="dateoptions" custom-datepicker/> <hr/> <pre>birthdate = {{birthdate}}</pre> <script type="text/ng-template" id="custom-datepicker.html"> <div class="enhanced-datepicker"> <div class="proxied-field-wrap"> <input type="text" ui-date-format="yy-mm-dd" ng-model="ngmodel" ui-date="dateoptions"/> </div> <label> <button class="btn" type="button"><i class="icon-calendar"></i>
Read more

javascript - jQuery date picker - Disable dates after the selection from the first date picker -

<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>jquery ui datepicker - default functionality</title> <link rel="stylesheet" href="//code.jquery.com/ui/1.11.4/themes/smoothness/jquery-ui.css"> <script src="//code.jquery.com/jquery-1.10.2.js"></script> <script src="//code.jquery.com/ui/1.11.4/jquery-ui.js"></script> <link rel="stylesheet" href="/resources/demos/style.css"> <script> $(function () { $("#datepicker1").datepicker(); }); </script> <script> $(function () { $("#datepicker2").datepicker(); }); </script> </head> <body> <p>date 1: <input type="text" id="datepicker1"></p> <p>date 2: <input type="t
Read more