java - Binding form elements to persistent storage in IntelliJ plugin -

i have started trying make own intellij plugin , can't figure out how save persistent information on bound form components.

i followed right click on form, data binding wizard, , matched listed. modified generated methods handle objects (or in case, 1 object) not bound (a jspinner).

how supposed persistent storage automatically save/update when state of component on form changed?

here persistentstatecomponent class:

import com.intellij.openapi.components.persistentstatecomponent; import com.intellij.openapi.components.state; import com.intellij.openapi.components.storage; import com.intellij.openapi.components.storagepathmacros; import com.intellij.util.xmlb.xmlserializerutil;  @state(         name = "hastebin configuration",         reloadable = true,         storages = {                 @storage(id = "other", file = storagepathmacros.app_config + "/hastebin.xml")         } ) public class hastebinservice implements persistentstatecomponent<hastebinservice> {      private string host = "hastebin.com";     private string msgsuccess = "share hastebin successful.<br>link waiting in clipboard.";     private string msgfailure = "something went wrong.<br><br>problem description: {error}<br><br>please try again , problem persists, contact author.";     private boolean logpastes = false;     private int port = 80;     private boolean usefileassoc = true;     private boolean usessl = false;      public string gethost() {         return this.host;     }      public boolean getlogpastes() {         return this.logpastes;     }      public string getmsgfailure() {         return this.msgfailure;     }      public string getmsgsuccess() {         return this.msgsuccess;     }      public int getport() {         return this.port;     }      @override     public hastebinservice getstate() {         return this;     }      public boolean getusefileassoc() {         return this.usefileassoc;     }      public boolean getusessl() {         return this.usessl;     }      @override     public void loadstate(hastebinservice state) {         xmlserializerutil.copybean(state, this);     }      public void sethost(string host) {         this.host = host;         system.out.println("testing");     }      public void setlogpastes(boolean logpastes) {         this.logpastes = logpastes;     }      public void setmsgfailure(string msgfailure) {         this.msgfailure = msgfailure;     }      public void setmsgsuccess(string msgsuccess) {         this.msgsuccess = msgsuccess;     }      public void setport(int port) {         this.port = port;     }      public void setusefileassoc(boolean usefileassoc) {         this.usefileassoc = usefileassoc;     }      public void setusessl(boolean usessl) {         this.usessl = usessl;     }  } 

here form class:

import com.intellij.ui.components.jbscrollpane;  import javax.swing.jcheckbox; import javax.swing.jcomponent; import javax.swing.jformattedtextfield; import javax.swing.jlabel; import javax.swing.jpanel; import javax.swing.jscrollpane; import javax.swing.jspinner; import javax.swing.jtabbedpane; import javax.swing.jtable; import javax.swing.jtextfield; import javax.swing.jviewport; import javax.swing.spinnernumbermodel; import java.awt.color; import java.awt.event.actionlistener;  public class settingspanel {     private jtabbedpane hastetabconfig;     private jcheckbox chkusessl;     private jcheckbox chkfileassoc;     private jcheckbox chkloghistory;     private jtextfield txtsuccess;     private jtextfield txtfailure;     private jtextfield txtdomain;     private jlabel lblprotocol;     private jspinner spinport;     private jpanel rootpanel;     private jscrollpane scrollpane;     private jpanel scrollpanel;     private jtable tblhistory;      public settingspanel() {         this.scrollpanel.setopaque(false);          this.chkusessl.addactionlistener(new actionlistener() {             @override             public void actionperformed(java.awt.event.actionevent e) {                 updateprotocol();             }         });     }      private void createuicomponents() {         // scroll pane         this.scrollpane = new jbscrollpane();         this.scrollpane.setbackground(new color(230, 230, 230));         this.scrollpane.setviewport(new customviewport(this.scrollpanel));         this.scrollpane.setopaque(false);         this.scrollpane.getverticalscrollbar().setblockincrement(20);         this.scrollpane.getverticalscrollbar().setunitincrement(16);          // port number         this.spinport = new jspinner(new spinnernumbermodel(80, 1, 65535, 1));         jformattedtextfield textfield = ((jspinner.defaulteditor)this.spinport.geteditor()).gettextfield();         textfield.setcolumns(1);     }      public void getdata(hastebinservice data) {         this.getunbounddata(data);         data.sethost(this.txtdomain.gettext());         data.setusessl(this.chkusessl.isselected());         data.setusefileassoc(this.chkfileassoc.isselected());         data.setlogpastes(this.chkloghistory.isselected());         data.setmsgsuccess(this.txtsuccess.gettext());         data.setmsgfailure(this.txtfailure.gettext());     }      private void getunbounddata(hastebinservice data) {         data.setport((int)this.spinport.getvalue());     }      public jpanel getrootpanel() {         return this.rootpanel;     }      public boolean ismodified(hastebinservice data) {         if (this.isunboundmodified(data)) return true;         if (this.txtdomain.gettext() != null ? !this.txtdomain.gettext().equals(data.gethost()) : data.gethost() != null)             return true;         if (this.chkusessl.isselected() != data.getusessl()) return true;         if (this.chkfileassoc.isselected() != data.getusefileassoc()) return true;         if (this.chkloghistory.isselected() != data.getlogpastes()) return true;         if (this.txtsuccess.gettext() != null ? !this.txtsuccess.gettext().equals(data.getmsgsuccess()) : data.getmsgsuccess() != null)             return true;         if (this.txtfailure.gettext() != null ? !this.txtfailure.gettext().equals(data.getmsgfailure()) : data.getmsgfailure() != null)             return true;         return false;     }      private boolean isunboundmodified(hastebinservice data) {         if ((int)this.spinport.getvalue() != data.getport()) return true;         return false;     }      public void setdata(hastebinservice data) {         this.setunbounddata(data);         this.txtdomain.settext(data.gethost());         this.chkusessl.setselected(data.getusessl());         this.chkfileassoc.setselected(data.getusefileassoc());         this.chkloghistory.setselected(data.getlogpastes());         this.txtsuccess.settext(data.getmsgsuccess());         this.txtfailure.settext(data.getmsgfailure());         this.updateprotocol();     }      public void setunbounddata(hastebinservice data) {         this.spinport.setvalue(data.getport());     }      private void updateprotocol() {         this.lblprotocol.settext("http" + (this.chkusessl.isselected() ? "s" : "") + "://");     }      private class customviewport extends jviewport {          public customviewport(jcomponent component) {             this.setview(component);             this.setopaque(false);         }     } } 

the intellij idea codebase not contain standard databinding solution automatically updating persistent component when form changes. jetbrains' own code copies fields form component manually.