Thursday, April 8, 2010

tableColumn, tableColumnModel, TableModel

(Outdated. See other posts on TCM.)
Actual Table data (like numbers and string values) are stored in the table model Instance, and should not be redundantly stored in another object such as JTable instance, TCM instance or TC instance. http://www.chka.de/swing/table/TableColumnModel.html points out --

A TableColumnModel Instance holds a bunch of TableColumn Instances, ordered like they are shown in a JTable -- #1 job of TCM. You can verify this observation from method "TableColumn getColumn(int)" . The method getColumns(void) actually returns an Enumeration of TC instances.

The 2nd job of a TCM Instance is the listener list. These listeners listen to column-move (and similar) events, NOT table data change events.

(A TCM instance doesn't hold actual table data.)

In a TC (TableColumn) instance, the most important information is the model index, i.e. which column in the TM is behind this TC instance. A TC Instance holds data fields controlling the appearance of a column. You can think of a TC Instance as a table_column_view object.

(Allow me to repeat -- There's no actual table data in a TC instance.)

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