blackboard

Class summary
blackboard

Method summary
add-data-field	blackboard label &optional initial-value
append-data	blackboard label data
blackboard	blackboard
copy-object	(blackboard blackboard)
copy-object-content	(source blackboard) (destination blackboard)
data	blackboard
data-fields	blackboard
field?	blackboard label
fields	blackboard
find-data	blackboard label &key
get-data	blackboard label &key
merge-data-fields	source destination
print-object	(blackboard blackboard) stream
push-data	blackboard label data
remove-data	blackboard label
set-data	blackboard label data

Function summary
make-blackboard	&key data-fields

Macro summary
with-data	(&rest labels) blackboard &body body

blackboard

[Class]

:data-fields :data :blackboard

[Initarg]

data-fields

blackboard

[Generic function]

Returns and (with setf) changes the data of the specified blackboard

data

blackboard

[Generic function]

Returns and (with setf) changes the data of the specified blackboard

blackboard

[Generic function]

Returns and (with setf) changes the data of the specified blackboard

fields

blackboard

[Generic function]

Returns a list of all fields of a blackboard

field?

blackboard label

[Generic function]

Returns two values. The first one returns true only when there is a field with the given label in the blackboard. The second one returns true if the first one is true and there is a non-nil value attached to the field.

add-data-field

blackboard label &optional initial-value

[Generic function]

Adds a data field to the blackboard

find-data

blackboard label &key

[Generic function]

When the field exists, returns the value and t, otherwise nil and nil.

get-data

blackboard label &key

[Generic function]

Retrieves the data for the given label from the blackboard. Returns an error if the data field does not exist.

append-data

blackboard label data

[Generic function]

Appends data to a data field of a blackboard. When the field does not exist, then it is added to the blackboard. When the data-field already exists it assumes the value to be a list.

push-data

blackboard label data

[Generic function]

Pushes data to a data field of a blackboard. When the field does not exist, it is added to the blackboard. When the data-field already exists it assumes the value to be a list.

set-data

blackboard label data

[Generic function]

Writes data to a data field of a blackboard. When the field does not exist, then it is added to the blackboard

remove-data

blackboard label

[Generic function]

Removes the complete entry for the given label. This also removes the label itself, not only it's data.

merge-data-fields

source destination

[Generic function]

copy-object

(blackboard blackboard)

[Method]

copy-object-content

(source blackboard) (destination blackboard)

[Method]

print-object

(blackboard blackboard) stream

[Method]

make-blackboard

&key data-fields

[Function]

with-data

(&rest labels) blackboard &body body

[Macro]

Shortcut for binding a set of variables to values from a blackboard.

The given labels are used both as the name of the variable as well as the label of the blackboard field whose data has to be bound to that variable.