A scripted SQL query generation framework with IDE: SQLpp (v1.4)

#include <sqlpp/expressions/binary_logical_expression.hpp>

namespace sqlpp{
namespace expressions{

	binary_logical_expression::binary_logical_expression(
		boolean_expression_shared_ptr left_,
		boolean_expression_shared_ptr right_,
		BinaryLogicalOperator op_
		)
		: m_left(left_), m_right(right_), m_op(op_){};

	std::ostream& binary_logical_expression::get_expression(std::ostream& out_
		, adaptors::database_adaptor_shared_ptr adaptor_) const		
	{
		if (!m_left)
			throw sqlpp::exceptions::sqlpp_exception("binary_logical_expresion: left op. is null");
		if (!m_right)
			throw sqlpp::exceptions::sqlpp_exception("binary_logical_expresion: right op. is null");

		out_<<"( ";
		m_left->get_expression(out_,adaptor_);
		out_<<")"<<std::endl;
		
		out_<<m_op<<std::endl;
			
		out_<<"( ";
		m_right->get_expression(out_,adaptor_);

		return out_<<" )"<<std::endl;
	};

binary_logical_expression_shared_ptr and(
	boolean_expression_shared_ptr left_,
	boolean_expression_shared_ptr right_
	)
{
	if (!left_)
		throw sqlpp::exceptions::sqlpp_exception("and: left op. is null");
	if (!right_)
		throw sqlpp::exceptions::sqlpp_exception("and: right op. is null");

	return binary_logical_expression_shared_ptr(
		new binary_logical_expression(
			left_,
			right_,
			BinaryLogicalOperatorAnd
			)
			);
};

binary_logical_expression_shared_ptr or(
	boolean_expression_shared_ptr left_,
	boolean_expression_shared_ptr right_
	)
{
	if (!left_)
		throw sqlpp::exceptions::sqlpp_exception("or: left op. is null");
	if (!right_)
		throw sqlpp::exceptions::sqlpp_exception("or: right op. is null");

	return binary_logical_expression_shared_ptr(
		new binary_logical_expression(
			left_,
			right_,
			BinaryLogicalOperatorOr
			)
			);
};

}; // expressions
};//sqlpp