cond::persistency::Query< Types > Class Template Reference

#include <DbCore.h>

Public Member Functions
template<int n>
void	_Query ()
template<int n, typename Arg1 , typename... Args>
void	_Query ()
template<typename C1 , typename C2 >
Query &	addCondition (const std::string condition="=")
template<typename C , typename T >
Query &	addCondition (const T &value, const std::string condition="=")
template<typename C >
Query &	addOrderClause (bool ascending=true)
template<typename Col >
Query &	addTable ()
const QueryIterator< Types... >	begin ()
const coral::AttributeList &	currentRow () const
const QueryIterator< Types... >	end ()
Query &	groupBy (const std::string &expression)
Query &	limitReturnedRows (size_t nrows)
bool	next ()
	Query (const coral::ISchema &schema, bool distinct=false)
size_t	retrievedRows () const
Query &	setForUpdate ()
	~Query ()

Private Attributes
std::unique_ptr< coral::IQuery >	m_coralQuery
coral::ICursor *	m_cursor = nullptr
size_t	m_retrievedRows = 0
std::set< std::string >	m_tables
std::string	m_whereClause
coral::AttributeList	m_whereData

Detailed Description

template<typename... Types>
class cond::persistency::Query< Types >

Definition at line 404 of file DbCore.h.

Constructor & Destructor Documentation

Query()

template<typename... Types>

cond::persistency::Query< Types >::Query ( const coral::ISchema &  schema, bool  distinct = false  )

inline

Definition at line 499 of file DbCore.h.

          : m_coralQuery(schema.newQuery()), m_whereData(), m_whereClause(""), m_tables() {
        _Query<0, Types...>();
        if (distinct)
          m_coralQuery->setDistinct();
      }

~Query()

template<typename... Types>

cond::persistency::Query< Types >::~Query ( )

inline

Definition at line 506 of file DbCore.h.

{}

Member Function Documentation

_Query() [1/2]

template<typename... Types>

template<int n>

void cond::persistency::Query< Types >::_Query ( )

inline

Definition at line 518 of file DbCore.h.

{}

Referenced by cond::persistency::Query< Types... >::_Query(), and cond::persistency::Query< Types... >::Query().

_Query() [2/2]

template<typename... Types>

template<int n, typename Arg1 , typename... Args>

void cond::persistency::Query< Types >::_Query ( )

inline

Definition at line 521 of file DbCore.h.

                    {
        addTable<Arg1>();
        DefineQueryOutput<typename Arg1::type>::make(*m_coralQuery, Arg1::fullyQualifiedName());
        _Query<n + 1, Args...>();
      }

addCondition() [1/2]

template<typename... Types>

template<typename C1 , typename C2 >

Query& cond::persistency::Query< Types >::addCondition ( const std::string  condition = "=" )

inline

Definition at line 535 of file DbCore.h.

                                                           {
        addTable<C1>();
        addTable<C2>();
        f_add_condition<C1, C2>(m_whereClause, condition);
        return *this;
      }

addCondition() [2/2]

template<typename... Types>

template<typename C , typename T >

Query& cond::persistency::Query< Types >::addCondition ( const T &  value, const std::string  condition = "="  )

inline

Definition at line 528 of file DbCore.h.

                                                                           {
        addTable<C>();
        f_add_condition_data<C>(m_whereData, m_whereClause, value, condition);
        return *this;
      }

addOrderClause()

template<typename... Types>

template<typename C >

Query& cond::persistency::Query< Types >::addOrderClause ( bool  ascending = true )

inline

Definition at line 543 of file DbCore.h.

                                                   {
        std::string orderClause(C::fullyQualifiedName());
        if (!ascending)
          orderClause += " DESC";
        m_coralQuery->addToOrderList(orderClause);
        return *this;
      }

addTable()

template<typename... Types>

template<typename Col >

Query& cond::persistency::Query< Types >::addTable ( )

inline

Definition at line 509 of file DbCore.h.

                        {
        if (m_tables.find(Col::tableName()) == m_tables.end()) {
          m_coralQuery->addToTableList(Col::tableName());
          m_tables.insert(Col::tableName());
        }
        return *this;
      }

begin()

template<typename... Types>

const QueryIterator<Types...> cond::persistency::Query< Types >::begin ( void  )

inline

Definition at line 581 of file DbCore.h.

                                            {
        m_coralQuery->setCondition(m_whereClause, m_whereData);
        m_cursor = &m_coralQuery->execute();
        m_retrievedRows = 0;
        QueryIterator<Types...> ret(this);
        return ++ret;
      }

currentRow()

template<typename... Types>

const coral::AttributeList& cond::persistency::Query< Types >::currentRow ( ) const

inline

Definition at line 575 of file DbCore.h.

                                                   {
        if (!m_cursor)
          throwException("The query has not been executed.", "Query::currentRow");
        return m_cursor->currentRow();
      }

Referenced by cond::persistency::QueryIterator< Types >::operator++().

end()

template<typename... Types>

const QueryIterator<Types...> cond::persistency::Query< Types >::end ( void  )

inline

Definition at line 589 of file DbCore.h.

{ return QueryIterator<Types...>(this); }

Referenced by Types.LuminosityBlockRange::cppID(), and Types.EventRange::cppID().

groupBy()

template<typename... Types>

Query& cond::persistency::Query< Types >::groupBy ( const std::string &  expression )

inline

Definition at line 551 of file DbCore.h.

                                                  {
        m_coralQuery->groupBy(expression);
        return *this;
      }

Referenced by SpecificationBuilder_cfi.Specification::saveAll().

limitReturnedRows()

template<typename... Types>

Query& cond::persistency::Query< Types >::limitReturnedRows ( size_t  nrows )

inline

Definition at line 561 of file DbCore.h.

                                             {
        m_coralQuery->limitReturnedRows(nrows);
        return *this;
      }

next()

template<typename... Types>

bool cond::persistency::Query< Types >::next ( void  )

inline

Definition at line 566 of file DbCore.h.

                  {
        if (!m_cursor)
          throwException("The query has not been executed.", "Query::currentRow");
        bool ret = m_cursor->next();
        if (ret)
          m_retrievedRows++;
        return ret;
      }

Referenced by cond::persistency::QueryIterator< Types >::operator++().

retrievedRows()

template<typename... Types>

size_t cond::persistency::Query< Types >::retrievedRows ( ) const

inline

Definition at line 591 of file DbCore.h.

{ return m_retrievedRows; }

setForUpdate()

template<typename... Types>

Query& cond::persistency::Query< Types >::setForUpdate ( )

inline

Definition at line 556 of file DbCore.h.

                            {
        m_coralQuery->setForUpdate();
        return *this;
      }

Member Data Documentation

m_coralQuery

template<typename... Types>

std::unique_ptr<coral::IQuery> cond::persistency::Query< Types >::m_coralQuery

private

Definition at line 594 of file DbCore.h.

Referenced by cond::persistency::Query< Types... >::_Query(), cond::persistency::Query< Types... >::addOrderClause(), cond::persistency::Query< Types... >::addTable(), cond::persistency::Query< Types... >::begin(), cond::persistency::Query< Types... >::groupBy(), cond::persistency::Query< Types... >::limitReturnedRows(), cond::persistency::Query< Types... >::Query(), and cond::persistency::Query< Types... >::setForUpdate().

m_cursor

template<typename... Types>

coral::ICursor* cond::persistency::Query< Types >::m_cursor = nullptr

private

Definition at line 595 of file DbCore.h.

Referenced by cond::persistency::Query< Types... >::begin(), cond::persistency::Query< Types... >::currentRow(), and cond::persistency::Query< Types... >::next().

m_retrievedRows

template<typename... Types>

size_t cond::persistency::Query< Types >::m_retrievedRows = 0

private

Definition at line 596 of file DbCore.h.

Referenced by cond::persistency::Query< Types... >::begin(), cond::persistency::Query< Types... >::next(), and cond::persistency::Query< Types... >::retrievedRows().

m_tables

template<typename... Types>

std::set<std::string> cond::persistency::Query< Types >::m_tables

private

Definition at line 599 of file DbCore.h.

Referenced by cond::persistency::Query< Types... >::addTable().

m_whereClause

template<typename... Types>

std::string cond::persistency::Query< Types >::m_whereClause

private

Definition at line 598 of file DbCore.h.

Referenced by cond::persistency::Query< Types... >::addCondition(), and cond::persistency::Query< Types... >::begin().

m_whereData

template<typename... Types>

coral::AttributeList cond::persistency::Query< Types >::m_whereData

private

Definition at line 597 of file DbCore.h.

Referenced by cond::persistency::Query< Types... >::addCondition(), and cond::persistency::Query< Types... >::begin().