Creating & Using the find() methods in Dynamic AX 2012

Hi,
1. Create a table,
2. Use the 2 EDTs and make it one as index as unique by property AllowDuplicates : NO
3. Create a find method in the table using below code and patten

static TableName find(UsedEDT _UsedEDT ,
                       boolean          _forUpdate = false,
                       ConcurrencyModel _concurrencyModel = ConcurrencyModel::Auto)
{
    TableName  tableName ;

    if (_UsedEDT)
    {
        if (_forUpdate)
        {
            tableName .selectForUpdate  (_forUpdate);
            if (_concurrencyModel != ConcurrencyModel::Auto)
                tableName .concurrencyModel(_concurrencyModel);
        }
        tableName .selectLocked     (_forUpdate);

        select firstonly tableName
            index hint UsedEDTIndex
            where tableName.UsedEDT == _UsedEDT ;
    }

    return     tableName ;
}
/************************Using the find method **********************/
Using the display method with find() we can get that value by using below codes in the table.
display Name name()
{
    return TableName::find(this.UsedEDT).name();
}