public ArrayDataModel() 
{
        this(null);
}

Construct a new ArrayDataModel with no specified wrapped data.

 public ArrayDataModel(E[] array) 
{
        super();
        setWrappedData(array);
}

Construct a new ArrayDataModel wrapping the specified array.

Parameters:

array - Array to be wrapped (if any)

 public int getRowCount() 
{
        if (array == null) {
	    return (-1);
        }
        return (array.length);
}

If there is wrappedData available, return the length of the array. If no wrappedData is available, return -1.

 public E getRowData() 
{
        if (array == null) {
	    return (null);
        } else if (!isRowAvailable()) {
            throw new NoRowAvailableException();
        } else {
            return ((E) array[index]);
        }
}

If row data is available, return the array element at the index specified by rowIndex. If no wrapped data is available, return null.

 public int getRowIndex() 
{
        return (index);
}

 public Object getWrappedData() 
{
        return (this.array);
}

 public boolean isRowAvailable() 
{
        if (array == null) {
	    return (false);
        } else if ((index  >= 0) && (index <  array.length)) {
            return (true);
        } else {
            return (false);
        }
}

Return true if there is wrappedData available, and the current value of rowIndex is greater than or equal to zero, and less than the length of the array. Otherwise, return false.

 public  void setRowIndex(int rowIndex) 
{
        if (rowIndex <  -1) {
            throw new IllegalArgumentException();
        }
        int old = index;
        index = rowIndex;
	if (array == null) {
	    return;
	}
	DataModelListener [] listeners = getDataModelListeners();
        if ((old != index) && (listeners != null)) {
            Object rowData = null;
            if (isRowAvailable()) {
                rowData = getRowData();
            }
            DataModelEvent event =
                new DataModelEvent(this, index, rowData);
            int n = listeners.length;
            for (int i = 0; i <  n; i++) {
		if (null != listeners[i]) {
		    listeners[i].rowSelected(event);
		}
            }
        }
}

 public  void setWrappedData(Object data) 
{
        if (data == null) {
            array = null;
            setRowIndex(-1);
        } else {
            array = (Object[]) data;
            index = -1;
            setRowIndex(0);
        }
}