doctrine / orm

     *

     * @return string

     */

    public function AliasIdentificationVariable()

    {

        $this->match(Lexer::T_IDENTIFIER);

        $aliasIdentVariable = $this->lexer->token['value'];

        $exists = isset($this->queryComponents[$aliasIdentVariable]);

        if ($exists) {

            $this->semanticalError("'$aliasIdentVariable' is already defined.", $this->lexer->token);

        }

        return $aliasIdentVariable;

    }

    /**

     * AbstractSchemaName ::= fully_qualified_name | aliased_name | identifier

     *

     * @return string

     */

    public function AliasResultVariable()

    {

        $this->match(Lexer::T_IDENTIFIER);

        $resultVariable = $this->lexer->token['value'];

        $exists = isset($this->queryComponents[$resultVariable]);

        if ($exists) {

            $this->semanticalError("'$resultVariable' is already defined.", $this->lexer->token);

        }

        return $resultVariable;

    }

    /**

     * ResultVariable ::= identifier