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How to return a structure with special criteria

I have this method that prepares a data table for rendering with all visible columns:

private SearchResultDataCell[] prepareTable(Object[] result) {
    int rowIndex = 0;
    final SearchResultDataCell row[] = new SearchResultDataCell[COUNT];
        row[rowIndex++] = dataCell(notNull(String.valueOf(result[0])));
        row[rowIndex++] = dataCell(notNull(String.valueOf(result[1])));
        row[rowIndex++] = dataCell(notNull(String.valueOf(result[2])));
        row[rowIndex++] = dataCell(notNull(String.valueOf(result[3])));
        row[rowIndex++] = dataCell(notNull(String.valueOf(result[4])));
        row[rowIndex++] = dataCell(notNull(String.valueOf(result[5])));
        row[rowIndex++] = dataCell(notNull(String.valueOf(result[6])));
    return row; 
}

Now I need to implement a function that allows only special columns to be displayed. As far as I understand, I should pass to the method some collection with visible indices that should be displayed, so the method signature should look like this:

private SearchResultDataCell[] prepareTable(Object[] test, List<Integer> visibleIndexes)

But how could I return a structure with visible columns? How do I rewrite this method to make the code more manageable?

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2 answers

To make the code more manageable, you can do the following for starters:

private SearchResultDataCell[] prepareTable(Object[] result) {
    final SearchResultDataCell row[] = new SearchResultDataCell[COUNT];
    for(int index = 0; index < row.length; index++) {
        row[index] = dataCell(notNull(String.valueOf(result[index])));
    }
    return row; 
}

, ,

private SearchResultDataCell[] prepareTable(Object[] test, ArrayList<Integer> visibleIndexes){
    SearchResultDataCell[] row = new SearchResultDataCell[visibleIndexes.size()];
    for(int index = 0 ; index < visibleIndexes.size(); index++){
        row[index] = dataCell(notNull(String.valueOf(test[visibleIndexes.get(index)])));
    }
    return row;
}

, .

+4

, , -

private SearchResultDataCell[] prepareTable(Object[] result) {
    int rowIndex = 0;
    final SearchResultDataCell row[] = new SearchResultDataCell[COUNT];
        row[rowIndex++] = dataCell(notNull(String.valueOf(result[0])));
        row[rowIndex++] = dataCell(notNull(String.valueOf(result[1])));
        row[rowIndex++] = dataCell(notNull(String.valueOf(result[2])));
        row[rowIndex++] = dataCell(notNull(String.valueOf(result[3])));
        row[rowIndex++] = dataCell(notNull(String.valueOf(result[4])));
        row[rowIndex++] = dataCell(notNull(String.valueOf(result[5])));
        row[rowIndex++] = dataCell(notNull(String.valueOf(result[6])));
    return row; 
    }

    private SearchResultDataCell[] prepareTable(Object[] test, List<Integer> visibleIndexes){
        SearchResultDataCell[] tableToRet = new SearchResultDataCell[visibleIndexes.size()];
        for(int i= 0 ; i < visibleIndexes.size(); i++){
            tableToRet[i] = test[visibleIndexes.get(i)];
        }
        return tableToRet;
    }
+2

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