Neos.ContentRepository/Classes/Migration/Transformations/RenameProperty.php
public function isTransformable(NodeData $node)
    {
        return ($node->hasProperty($this->oldPropertyName) && !$node->hasProperty($this->newPropertyName));
    }
public function isTransformable(NodeData $node)
    {
        return ($node->hasProperty($this->oldPropertyName) && !$node->hasProperty($this->newPropertyName));
    }
public function isTransformable ( NodeData $ node ) { return ( $ node -> hasProperty ( $ this -> oldPropertyName ) && ! $ node -> hasProperty ( $ this -> newPropertyName ) ) ; }
Returns true if the given node has a property with the name to work on
and does not yet have a property with the name to rename that property to.

@param NodeData $node
@return boolean
Returns true if the given node has a property with the name to work on and does not yet have a property with the name to rename that property to .