org.topbraid.actions.statement
Interface IStatementAction

All Superinterfaces:

IAction

All Known Implementing Classes:

AbstractMoveStatementAction, AbstractStatementAction, AddMax1StatementAction, AssertStatementAction, ConvertObjectToBNodeAction, CreateReifiedStatementAction, DeleteReifiedStatementAction, DeleteStatementAction, ExecuteQueryAction, InferencesExplanationsStatementAction, MoveDownStatementAction, MoveUpStatementAction, ReplaceInstanceStatementAction, ViewReifiedStatementAction

public interface IStatementAction
extends IAction

An action that is applied to a given Jena Statement (triple). IStatementActions are declared using the corresponding Eclipse extension point, so that user interfaces can add the actions to drop down menus etc.

Author:

Holger Knublauch

Method Summary

boolean	isEnabledFor(com.hp.hpl.jena.rdf.model.Statement statement) Checks if this action is enabled for a given statement.
boolean	isVisibleFor(com.hp.hpl.jena.rdf.model.Statement statement) Checks if this action shall appear in a UI (drop down menu) for a given statement.
void	run(com.hp.hpl.jena.rdf.model.Statement statement) Executes the action for a given Statement.

Methods inherited from interface org.topbraid.actions.IAction

getImageMetadata, getText

Method Detail

isEnabledFor

boolean isEnabledFor(com.hp.hpl.jena.rdf.model.Statement statement)

Checks if this action is enabled for a given statement. This method is only called if isVisibleFor(statement) has delivered true.

Parameters:

statement - the Statement to test against

Returns:

true if this is enabled for statement

isVisibleFor

boolean isVisibleFor(com.hp.hpl.jena.rdf.model.Statement statement)

Checks if this action shall appear in a UI (drop down menu) for a given statement. Being visible does not automatically mean that the action is also enabled - it may show up in gray if a further call to isEnabledFor returns false.

Parameters:

statement - the Statement to test against

Returns:

true if this is visible for statement

run

void run(com.hp.hpl.jena.rdf.model.Statement statement)

Executes the action for a given Statement. This method is only called when the action is visible and enabled for the Statement. Typical implementation create an IChange and execute it.

Parameters:

statement - the Statement to operate on