operations
Class OpStep

java.lang.Object
  |
  +--operations.Operation
        |
        +--operations.OpStep

public class OpStep

extends Operation

Field Summary

Fields inherited from class operations.Operation

constructedObjects, level, objects, reconstructedObjects, thisLab, undoable, use

Constructor Summary

OpStep(interagents.userLab lab, librarian.EuCorder program)

Method Summary

boolean	can(fundamentals.signature sgn) The following method returns true, if it makes sense to perform this operation on the set of objects given in objs.
boolean	canDefault() Returns true if this method can should be used as a default operation.
void	perform(fundamentals.signature sgn) The following method performs the operation on the objects given in objs.
java.lang.String	toNaturalLanguage(int language)

Methods inherited from class operations.Operation

construct, deselect, enable, hide, isUndoable, name, record, record, show, start, stop, submenu, unconstruct, undoAll, undoFirst

Methods inherited from class java.lang.Object

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

Constructor Detail

OpStep

public OpStep(interagents.userLab lab,
              librarian.EuCorder program)

Method Detail

can

public boolean can(fundamentals.signature sgn)

Description copied from class: Operation

The following method returns true, if it makes sense to perform this operation on the set of objects given in objs. The signature is redundant, but it's faster to compute it only once.

Specified by:

can in class Operation

toNaturalLanguage

public java.lang.String toNaturalLanguage(int language)

Overrides:

toNaturalLanguage in class Operation

perform

public void perform(fundamentals.signature sgn)
             throws LeaException

Description copied from class: Operation

The following method performs the operation on the objects given in objs. It's assumed that it makes sense to perform the operation (this can be checked with the can() method. Some subclasses assume that can() method is always called before the perform() method, and that it's called with the same objs Vector.

Specified by:

perform in class Operation

LeaException

canDefault

public boolean canDefault()

Description copied from class: Operation

Returns true if this method can should be used as a default operation. The default is "true", so we only need to override the method for operations that cannot be used as default operations.

Overrides:

canDefault in class Operation