java - JTable get all rows that are being edited -

i have jtable has 2 columns

• column 0 username
• column 1 password.

for password column encrypted sha256.

basically want achieve update rows in password column sha256 have edited after button pressed.

so..

i have rowdata class, store text being edited , position of text being edited(rows,columns).

public class rowdata {     int rows = 0, columns = 0;     string text = " ";       public rowdata(string text,int rows, int columns) {         seteditedrows(rows);         seteditedcolumns(columns);         seteditedtext(text);     }      public int geteditedrows() {         return rows;     }      public int geteditedcolumns() {         return columns;     }      public string geteditedtext() {         return text;     }      public void seteditedrows(int rows) {         this.rows = rows;     }      public void seteditedcolumns(int columns) {         this.columns = columns;     }      public void seteditedtext(string text) {         this.text = text;     } } 

i wrote tablemodellistener.. have list store text , rows , columns after table has changed

 table.getmodel().addtablemodellistener(new tablemodellistener() {             @override             public void tablechanged(tablemodelevent e) {                 int row = e.getfirstrow();                 int column = e.getcolumn();                 tablemodel model = (tablemodel) e.getsource();                 //system.out.println(model.getvalueat(row, column));                 if(column == 1) {                     string data = (string) model.getvalueat(row, column);                     system.out.println(data);                     datalist.add(new rowdata(data,row,column));                 }              }         }); 

in button loop through list , retrieve rows, , columns , text , set password sha256 jtable.

updatebtn.addactionlistener(new actionlistener(){         public void actionperformed(actionevent e) {             if (table.getcelleditor() != null) {                 table.getcelleditor().stopcellediting();                     for(int = 0; < datalist.size(); i++) {                     string text = datalist.get(i).geteditedtext();                     int rows = datalist.get(i).geteditedrows();                     int columns =  datalist.get(i).geteditedcolumns();                     //system.out.println(datalist.get(i).geteditedtext() + " " +  datalist.get(i).geteditedrows() + datalist.get(i).geteditedcolumns());                     table.setvalueat(convertpassword.converttosha256(text), rows ,columns);                 }             }         }     });  

the result keep printing password endlessly in console. think logic wrong , needed corrected.

table.setvalueat(convertpassword.converttosha256(text), rows ,columns); 

when change tablemodel tablemodellistener invoked again. tablemodellistener invoked whether change data using jtable or updating tablemodel directly.

the solution remove tablemodellistener when click on button, @ start of actionlistener. need add tablemodellistener tablemodel @ end of code in case user make further changes.

another solution have 3 columns in tablemodel, username, password , sha256password. can use jtable display first 2 columns. see removecolumn() method of jtable. conversion code update tablemodel using:

table.getmodel().setvalueat(value, row, 2); 

now code in tablemodel invoked, because check updates column 1, nothing happen when update column 2.

then when save data save data tablemodel.

edit:

i must click cell before can press button edit.

you need stop cell editing. see table stop editing couple of solutions.