Mapping/PropertyDefinition.php
public function supportsOperation($operationName)
    {
        foreach ($this->operations as $operation) {
            if ($operation->getName() === $operationName) {
                return true;
            }
        }

        return false;
    }
public function supportsOperation($operationName)
    {
        foreach ($this->operations as $operation) {
            if ($operation->getName() === $operationName) {
                return true;
            }
        }

        return false;
    }
Checks whether a specific operation is known to be supported

@param string $operationName The name of the operation.

@return boolean True if the operation is supported, false otherwise.