question: public void findTaxCategoryID ( ) { m_AD_Client_ID = Env . getAD_Client_ID ( Env . getCtx ( ) ) ; m_AD_Org_ID = Env . getAD_Org_ID ( Env . getCtx ( ) ) ; m_CreatedBy = Env . getAD_User_ID ( Env . getCtx ( ) ) ; String sql = "SELECT C_TaxCategory_ID FROM C_TaxCategory " + "WHERE IsDefault='Y' AND AD_Client_ID=?" ; m_C_TaxCategory_ID = 0 ; try { PreparedStatement pstmt = DB . prepareStatement ( sql , null ) ; pstmt . setInt ( 1 , m_AD_Client_ID ) ; ResultSet rs = pstmt . executeQuery ( ) ; if ( rs . next ( ) ) m_C_TaxCategory_ID = rs . getInt ( 1 ) ; rs . close ( ) ; pstmt . close ( ) ; } catch ( SQLException e ) { log . log ( Level . SEVERE , sql , e ) ; } }
target:  Finds the identifier for the tax category for the client.