Deleting a row from a JTable using a custom TableModel

Before I waste any of your time I would like to go ahead and just say that I have searched through the forum using "delete row from Jtable" as the search keywords and while I have found very closely related issues, they have not solved my problem. I have found code postings by carmickr and his arguments as to why we should use DefaultTableModel instead of having created our own custom TableModel, and while I do agree, I just am not quite confident enough in applying it to my scenario. See I am reading from a file a bunch of Contractor objects and I am stuffing it into an arraylist which I am using in the following code posting to populate my TableModel which the JTable object in the gui then uses.

My problem is that everything works except when I delete and when I delete I understand that the index is changing because I just removed a row from the arraylist object. Suppose I have 33 rows displaying in the GUI. Now after I delete say row #23, the delete function works and dutifuly the row disappears from the table, but if I try to delete a row say...the last row, it does not work and throws me an IndexOutOfBoundsException which totally makes sense. My question is how do I go about fixing it? Do I have to do something with the setRowCount method?

Any help is appreciated.

Cheers,

Surya

* ContractorTableModel.java

* Created on January 12, 2006, 11:59 PM

package code.suncertify.gui;

import java.util.ArrayList;

import java.util.logging.Logger;

import javax.swing.table.AbstractTableModel;

import code.suncertify.db.Contractor;

/**

* @author Surya De

* @version 1.0

publicclass ContractorTableModelextends AbstractTableModel{

/**

* The Logger instance. All log messages from this class are routed through

* this member. The Logger namespace is <code>sampleproject.gui</code>.

private Logger log = Logger.getLogger("code.gui");

/**

* An array of <code>String</code> objects representing the table headers.

private String [] headerNames ={"Record Number","Contractor Name",

"Location","Specialties","Size","Rate",

"Owner"};

/**

* Holds all Contractor instances displayed in the main table.

private ArrayList <Object> contractorRecords =new ArrayList<Object>(5);

/**

* Returns the column count of the table.

* @return An integer indicating the number or columns in the table.

publicint getColumnCount(){

return this.headerNames.length;

}

/**

* Returns the number of rows in the table.

* @return An integer indicating the number of rows in the table.

publicint getRowCount(){

return this.contractorRecords.size();

}

/**

* Gets a value from a specified index in the table.

* @param row An integer representing the row index.

* @param column An integer representing the column index.

* @return The object located at the specified row and column.

public Object getValueAt(int row,int column){

Object [] temp = (Object[]) this.contractorRecords.get(row);

return temp[column];

}

/**

* Sets the cell value at a specified index.

* @param obj The object that is placed in the table cell.

* @param row The row index.

* @param column The column index.

publicvoid setValueAt(Object obj,int row,int column){

Object [] temp = (Object []) this.contractorRecords.get(row);

temp [column] = obj;

}

/**

* Returns the name of a column at a given column index.

* @param column The specified column index.

* @return A String containing the column name.

public String getColumnName(int column){

return headerNames[column];

}

/**

* Given a row and column index, indicates if a table cell can be edited.

* @param row Specified row index.

* @param column Specified column index.

* @return A boolean indicating if a cell is editable.

publicboolean isCellEditable(int row,int column){

returnfalse;

}

/**

* Adds a row of Contractor data to the table.

* @param specialty

* @param recNo The record number of the row in question.

* @param name The name of the contractor.

* @param location Where the contractor is located

* @param size Number of workers for the contractor

* @param rate The contractor specific charge rate

* @param owner Name of owner

publicvoid addContractorRecord(int recNo, String name,

String location, String specialty,

int size,float rate, String owner){

Object [] temp ={new Integer(recNo), name,

location, specialty,new Integer(size),

new Float(rate), owner};

this.contractorRecords.add(temp);

fireTableDataChanged();

}

/**

* Adds a Contractor object to the table.

* @param contractor The Contractor object to add to the table.

publicvoid addContractorRecord(Contractor contractor){

Object [] temp ={new Integer(contractor.getRecordNumber()),

contractor.getName(), contractor.getLocation(),

contractor.getSpecialties(),new Integer(contractor.getSize()),

new Float(contractor.getRate()), contractor.getCustomerID()};

this.contractorRecords.add(temp);

fireTableDataChanged();

}

/**

* Deletes a row of Contractor data to the table.

* @FIXME Now that I deleted a row then I will have to reset the internal structure so that I can delete again

* @param recNo The record number of the row in question.

publicvoid deleteContractorRecord(int recNo){

contractorRecords.remove(recNo - 1);

fireTableRowsDeleted(recNo -1, recNo - 1);

}

[9100 byte] By [suryadea] at [2007-10-2 10:16:46]

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