org.gnu.gtk

Class DataColumn

public abstract class DataColumn extends Object

Represents a block in which data can be stored in a {@link TreeModel} (such as {@link ListStore} or {@link TreeStore}). In Gtk, these are called columns and are referenced by integers. We have renamed them to DataBlocks to avoid confusion with {@link TreeViewColumn}s and created these objects to use rather than integers. This allows type checking and should make programs more maintainable. This is an abstract class - there is an implementation of it for each type of data accepted by the two tree models.

See Also: ListStore

Method Summary
booleanequals(DataColumn col)
Determine if the given DataColumn represents the same column in the store as the current object.
intgetColumn()
Returns the column number of this dataBlock used internally by Gtk.
TypegetType()
Returns the glib Type of data contained in this column.

Method Detail

equals

public boolean equals(DataColumn col)
Determine if the given DataColumn represents the same column in the store as the current object. This compares the column ids using the {@link #getColumn} method.

getColumn

public int getColumn()
Returns the column number of this dataBlock used internally by Gtk.

getType

public Type getType()
Returns the glib Type of data contained in this column. This can only be called once. (it is only needed once - in the constructor of the listStore/TreeStore)