org.gnu.gtk
Class DataColumn

java.lang.Object
  org.gnu.gtk.DataColumn

Direct Known Subclasses:

DataColumnBoolean, DataColumnDouble, DataColumnIconSize, DataColumnInt, DataColumnLong, DataColumnObject, DataColumnPixbuf, DataColumnStockItem, DataColumnString

public abstract class DataColumn
extends java.lang.Object

Represents a block in which data can be stored in a TreeModel (such as ListStore or TreeStore). In Gtk, these are called columns and are referenced by integers. We have renamed them to DataBlocks to avoid confusion with TreeViewColumns 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, TreeStore

Constructor Summary

DataColumn()

Method Summary

boolean	equals(DataColumn col) Determine if the given DataColumn represents the same column in the store as the current object.
int	getColumn() Returns the column number of this dataBlock used internally by Gtk.
Type	getType() Returns the glib Type of data contained in this column.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DataColumn

public DataColumn()

Method Detail

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)

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 getColumn() method.