swing - Using Factory Pattern in Java -
i studying factory pattern , have doubts best way buil it. developed 2 progamas same, difference code implements pattern in question. after comparison me find:
- code 1 better reusability, jvm, performance, etc, number 1 or 2?
- is 3.er optimal way more?
shared classes
artist
public class artistframe extends abstractfactoryjinternalframe { public artistframe(string title, int x, int y) { super(title, x, y); } @override void makebuttons() { jbutton addbtn = new jbutton("add"); addbtn.addactionlistener(new actionlistener() { @override public void actionperformed(actionevent actionevent) { //to } }); jbutton savebtn = new jbutton("save"); savebtn.addactionlistener(new actionlistener() { @override public void actionperformed(actionevent actionevent) { //to } }); jbutton deletebtn = new jbutton("delete"); deletebtn.addactionlistener(new actionlistener() { @override public void actionperformed(actionevent actionevent) { //to } }); jbutton cancelbtn = new jbutton("cancel"); cancelbtn.addactionlistener(new actionlistener() { @override public void actionperformed(actionevent actionevent) { //to } }); add(addbtn, borderlayout.south); add(savebtn, borderlayout.north); add(deletebtn, borderlayout.east); add(cancelbtn, borderlayout.west); } } track
public class trackframe extends abstractfactoryjinternalframe { public trackframe(string title, int x, int y) { super(title, x, y); } @override void makebuttons() { jbutton addbtn = new jbutton("add"); addbtn.addactionlistener(new actionlistener() { @override public void actionperformed(actionevent actionevent) { //to } }); jbutton savebtn = new jbutton("save"); savebtn.addactionlistener(new actionlistener() { @override public void actionperformed(actionevent actionevent) { //to } }); jbutton deletebtn = new jbutton("delete"); deletebtn.addactionlistener(new actionlistener() { @override public void actionperformed(actionevent actionevent) { //to } }); jbutton cancelbtn = new jbutton("cancel"); cancelbtn.addactionlistener(new actionlistener() { @override public void actionperformed(actionevent actionevent) { //to } }); add(addbtn, borderlayout.north); add(savebtn, borderlayout.center); add(deletebtn, borderlayout.east); add(cancelbtn,borderlayout.west); } } album
public class albumframe extends abstractfactoryjinternalframe { public albumframe(string title, int x, int y) { super(title, x, y); } @override void makebuttons() { jbutton addbtn = new jbutton("add"); addbtn.addactionlistener(new actionlistener() { @override public void actionperformed(actionevent actionevent) { //to } }); jbutton savebtn = new jbutton("save"); savebtn.addactionlistener(new actionlistener() { @override public void actionperformed(actionevent actionevent) { //to } }); jbutton deletebtn = new jbutton("delete"); deletebtn.addactionlistener(new actionlistener() { @override public void actionperformed(actionevent actionevent) { //to } }); jbutton cancelbtn = new jbutton("cancel"); cancelbtn.addactionlistener(new actionlistener() { @override public void actionperformed(actionevent actionevent) { //to } }); add(addbtn, borderlayout.east); add(savebtn, borderlayout.west); add(deletebtn, borderlayout.north); add(cancelbtn, borderlayout.south); } } case 1
main class
public class testswing extends jframe { jdesktoppane desktop; abstractfactoryjinternalframe artistframe; abstractfactoryjinternalframe albumframe; abstractfactoryjinternalframe trackframe; public testswing() { setdefaultcloseoperation(windowconstants.exit_on_close); setsize(500,300); desktop = new jdesktoppane(); artistframe = abstractfactoryjinternalframe.getframe("artist",10,10); albumframe = abstractfactoryjinternalframe.getframe("album", 20, 20); trackframe = abstractfactoryjinternalframe.getframe("track", 30,30); desktop.add(artistframe); desktop.add(albumframe); desktop.add(trackframe); setcontentpane(desktop); setvisible(true); } public static void main(string[] args) { swingutilities.invokelater(new runnable() { @override public void run() { testswing ts = new testswing(); } }); } } factory class public abstract class abstractfactoryjinternalframe extends jinternalframe {
protected abstractfactoryjinternalframe(string title, int x, int y) { super(title, true, true, true, true); setlocation(y,y); } public static abstractfactoryjinternalframe getframe(string title, int x, int y) { abstractfactoryjinternalframe frame = null; if (title.equals("artist")) { frame = new artistframe(title, x, y); } else if (title.equals("album")) { frame = new albumframe(title, x, y); } else { frame = new trackframe(title, x, y); } frame.makebuttons(); frame.pack(); frame.setvisible(true); return frame; } abstract void makebuttons(); } case 2
main class
public class testswing extends jframe { jdesktoppane desktop; abstractfactoryjinternalframe artistframe; abstractfactoryjinternalframe albumframe; abstractfactoryjinternalframe trackframe; public testswing() { setdefaultcloseoperation(windowconstants.exit_on_close); setsize(500,300); desktop = new jdesktoppane(); artistframe = new artistframe("arist",10,10); albumframe = new albumframe("album", 20, 20); trackframe = new trackframe("track", 30,30); desktop.add(artistframe); desktop.add(albumframe); desktop.add(trackframe); setcontentpane(desktop); setvisible(true); } public static void main(string[] args) { swingutilities.invokelater(new runnable() { @override public void run() { testswing ts = new testswing(); } }); } } factory class
public abstract class abstractfactoryjinternalframe extends jinternalframe { protected abstractfactoryjinternalframe(string title, int x, int y) { super(title, true, true, true, true); setlocation(y,y); makebuttons(); pack(); setvisible(true); } abstract void makebuttons(); }
in fact, case#2 doesn't seem "factory" since using operator new create instances. in other hand, case#1 seems correct, don't know getframe(..) because code isn't posted.
artistframe = abstractfactoryjinternalframe.getframe("artist",10,10); anyway, should check link factory pattern
Comments
Post a Comment