package IAC.diagram.edit.commands;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.gmf.runtime.common.core.command.CommandResult;
import org.eclipse.gmf.runtime.emf.type.core.commands.EditElementCommand;
import org.eclipse.gmf.runtime.emf.type.core.requests.CreateRelationshipRequest;
import IAC.Node;
import IAC.diagram.edit.policies.IACBaseItemSemanticEditPolicy;
/**
* @generated
*/
public class NodeFather_ofCreateCommand extends EditElementCommand {
/**
* @generated
*/
private final EObject source;
/**
* @generated
*/
private final EObject target;
/**
* @generated
*/
public NodeFather_ofCreateCommand(CreateRelationshipRequest request,
EObject source, EObject target) {
super(request.getLabel(), null, request);
this.source = source;
this.target = target;
}
/**
* @generated
*/
public boolean canExecute() {
if (source == null && target == null) {
return false;
}
if (source != null && false == source instanceof Node) {
return false;
}
if (target != null && false == target instanceof Node) {
return false;
}
if (getSource() == null) {
return true; // link creation is in progress; source is not defined yet
}
// target may be null here but it's possible to check constraint
return IACBaseItemSemanticEditPolicy.getLinkConstraints()
.canCreateNodeFather_of_4008(getSource(), getTarget());
}
/**
* @generated
*/
protected CommandResult doExecuteWithResult(IProgressMonitor monitor,
IAdaptable info) throws ExecutionException {
if (!canExecute()) {
throw new ExecutionException(
"Invalid arguments in create link command"); //$NON-NLS-1$
}
if (getSource() != null && getTarget() != null) {
getSource().getFather_of().add(getTarget());
}
return CommandResult.newOKCommandResult();
}
/**
* @generated
*/
protected void setElementToEdit(EObject element) {
throw new UnsupportedOperationException();
}
/**
* @generated
*/
protected Node getSource() {
return (Node) source;
}
/**
* @generated
*/
protected Node getTarget() {
return (Node) target;
}
}