drools-eclipse/org.drools.eclipse/src/main/java/org/drools/eclipse/editors/rete/commands/NodeSetConstraintCommand.java
public boolean canExecute() {
        Object type = request.getType();
        return (RequestConstants.REQ_MOVE.equals( type ) || RequestConstants.REQ_MOVE_CHILDREN.equals( type ));
    }
public boolean canExecute() {
        Object type = request.getType();
        return (RequestConstants.REQ_MOVE.equals( type ) || RequestConstants.REQ_MOVE_CHILDREN.equals( type ));
    }
/* (non-Javadoc)
@see org.eclipse.gef.commands.Command#canExecute()