JROOT::JRootReadableClass Struct Reference

ROOT class for reading object. More...

#include <JRootClass.hh>

Inheritance diagram for JROOT::JRootReadableClass:

Public Types
typedef JAddress< char * >	JAddress_t
typedef JAddress_t::pointer_type	pointer_type

Public Member Functions
template<class T >
	JRootReadableClass (T &object)
	Constructor. More...
	JRootReadableClass (const JRootAddressableClass< char * > &rc)
	Copy constructor. More...
template<class T >
	operator const T & () const
	Type conversion operator. More...
template<class T >
	operator T& ()
	Type conversion operator. More...
pointer_type	getAddress () const
	Get address. More...
bool	is_valid () const
	Check validity of this addressable class. More...
JRootAddressableClass	find (const char *const name) const
	Find addressable base class or data member with given name within current class. More...
JRootClass	find (const char *const name, const bool option=true) const
	Find base class or data member with given name within current class. More...
JRootAddressableClass	get (const TDataMember &data_member) const
	Get addressable class of given data member. More...
JRootAddressableClass	get (const TBaseClass &base_class) const
	Get addressable class of given base class. More...
JRootAddressableClass	operator[] (const char *const name) const
	Find addressable base class or data member with given name within current class. More...
TDictionary *	getDictionary () const
	Get dictionary. More...
int	getOffset () const
	Get offset of this class with respect to parent class. More...
TClass *	getClass () const
	Get class. More...
const char *	getTypename () const
	Get type name. More...
bool	equals (const JRootClass &object) const
	Test equality of ROOT classes. More...
void	print (std::ostream &out) const
	Print ROOT class information. More...

Static Public Member Functions
static bool	is_class (const char *const name)
	Check name of class against ROOT classes. More...
static bool	is_class (const TBaseClass &base_class)
	Check base class against ROOT class names. More...
static bool	is_class (const TDataMember &data_member)
	Check data member against ROOT class names. More...
static bool	is_STLcontainer (const TBaseClass &base_class)
	Check if base class is STL container. More...
static bool	is_STLcontainer (const TDataMember &data_member)
	Check if data member is STL container. More...
static bool	is_STLstring (const TDataMember &data_member)
	Check if data member is STL string. More...
static bool	is_static (const TDataMember &data_member)
	Check if data member is static. More...
static bool	is_tobject_member (const char *name)
	Check if name is one of TObject own data members (fBits or fUniqueID, for Root <= 6.30.04 at least) More...

Public Attributes
pointer_type	address

Protected Member Functions
void	print (std::ostream &out, const std::string &prefix) const
	Print ROOT class information. More...

Static Protected Member Functions
static void	print (std::ostream &out, const std::string &name, const std::string &type)
	Print ROOT class information. More...

Protected Attributes
TDictionary *	dictionary
	pointer to ROOT dictionary More...
int	offset
	offset with respect to data structure [B] More...

Detailed Description

ROOT class for reading object.

Definition at line 542 of file JRootClass.hh.

Member Typedef Documentation

JAddress_t

typedef JAddress<char * > JROOT::JRootAddressableClass< char * >::JAddress_t

inherited

Definition at line 440 of file JRootClass.hh.

pointer_type

typedef JAddress_t::pointer_type JROOT::JRootAddressableClass< char * >::pointer_type

inherited

Definition at line 441 of file JRootClass.hh.

Constructor & Destructor Documentation

JRootReadableClass() [1/2]

template<class T >

JROOT::JRootReadableClass::JRootReadableClass ( T &  object )

inline

Constructor.

Parameters

object

template object

Definition at line 551 of file JRootClass.hh.

                                  :
      JRootAddressableClass<char *>(object)
    {}

JRootReadableClass() [2/2]

JROOT::JRootReadableClass::JRootReadableClass ( const JRootAddressableClass< char * > &  rc )

inline

Copy constructor.

Parameters

rc	ROOT addressable class

Definition at line 561 of file JRootClass.hh.

                                                                :
      JRootAddressableClass<char *>(rc)
    {}

Member Function Documentation

operator const T &()

template<class T >

JROOT::JRootReadableClass::operator const T & ( ) const

inline

Type conversion operator.

Returns

value

Definition at line 572 of file JRootClass.hh.

    {
      if (static_cast<const JRootClass&>(*this) == JRootClass(JType<T>())) {
        return * (const T*) this->getAddress();
      } else {
        THROW(JCastException, "JRootReadableClass::operator const T&");
      }
    }

operator T&()

template<class T >

JROOT::JRootReadableClass::operator T& ( )

inline

Type conversion operator.

Returns

value

Definition at line 588 of file JRootClass.hh.

    {
      if (static_cast<const JRootClass&>(*this) == JRootClass(JType<T>())) {
        return * (T*) this->getAddress();
      } else {
        THROW(JCastException, "JRootReadableClass::operator T&");
      }
    }

getAddress()

pointer_type JROOT::JRootAddressableClass< char * >::getAddress ( ) const

inlineinherited

Get address.

Returns

pointer to object

Definition at line 460 of file JRootClass.hh.

    {
      return this->address + getOffset();
    }

is_valid()

bool JROOT::JRootAddressableClass< char * >::is_valid ( ) const

inlineinherited

Check validity of this addressable class.

Returns

true if valid addressable class; else false

Definition at line 471 of file JRootClass.hh.

    {
      return (JRootClass::is_valid() && this->address != NULL);
    }

find() [1/2]

JRootAddressableClass JROOT::JRootAddressableClass< char * >::find ( const char *const  name ) const

inlineinherited

Find addressable base class or data member with given name within current class.

Parameters

name	name of base class or data member

Returns

ROOT addressable class

Definition at line 483 of file JRootClass.hh.

    {
      return JRootAddressableClass(JRootClass::find(name), this->address);
    }

find() [2/2]

JRootClass JROOT::JRootClass::find ( const char *const  name, const bool  option = true  ) const

inlineinherited

Find base class or data member with given name within current class.

Parameters

name	name of base class or data member
option	case sensitivity

Returns

ROOT class

Definition at line 246 of file JRootClass.hh.

    {
      if (name != NULL && strlen(name) != 0) {
 
        if (strcmp(getTypename(), name) == 0) {
          return *this;
        }
 
        if (this->getClass() != NULL) {
 
          // check for data member
          
          for (std::unique_ptr<TIterator> i(this->getClass()->GetListOfDataMembers(kFALSE)->MakeIterator()); const TDataMember* p = (const TDataMember*) i->Next(); ) {
            if (( option  &&  strcmp    (p->GetName(), name) == 0) ||
                (!option  &&  strcasecmp(p->GetName(), name) == 0)) { 
              return this->get(*p);
            }
          }
          
          // check for base classes
          
          for (std::unique_ptr<TIterator> i(this->getClass()->GetListOfBases()->MakeIterator()); TBaseClass* p = (TBaseClass*) i->Next(); ) {
            
            if (is_class(*p) && !is_STLcontainer(*p)) {
              
              JRootClass rcs = this->get(*p);
 
              rcs = rcs.find(name);
              
              if (rcs.is_valid()) {
                return rcs;
              }
            }
          }
        }
      }
 
      return JRootClass();  // invalid value
    }

get() [1/2]

JRootAddressableClass JROOT::JRootAddressableClass< char * >::get ( const TDataMember &  data_member ) const

inlineinherited

Get addressable class of given data member.

Parameters

data_member

data member

Returns

ROOT addressable class

Definition at line 495 of file JRootClass.hh.

    {
      return JRootAddressableClass(JRootClass::get(data_member), this->address);
    }

get() [2/2]

JRootAddressableClass JROOT::JRootAddressableClass< char * >::get ( const TBaseClass &  base_class ) const

inlineinherited

Get addressable class of given base class.

Parameters

base_class

base class

Returns

ROOT addressable class

Definition at line 507 of file JRootClass.hh.

    {
      return JRootAddressableClass(JRootClass::get(base_class), this->address);
    }

operator[]()

JRootAddressableClass JROOT::JRootAddressableClass< char * >::operator[] ( const char *const  name ) const

inlineinherited

Find addressable base class or data member with given name within current class.

Parameters

name	name of base class or data member

Returns

ROOT addressable class

Definition at line 519 of file JRootClass.hh.

    {
      return this->find(name);
    }

is_class() [1/3]

static bool JROOT::JRootClass::is_class ( const char *const  name )

inlinestaticinherited

Check name of class against ROOT classes.

Parameters

name	name of class

Returns

true if name of class corresponds to genuine class; else false

Definition at line 50 of file JRootClass.hh.

    {
      return (name                                      != NULL  &&
              strcmp(name, TClass ::Class()->GetName()) != 0     &&
              strcmp(name, TObject::Class()->GetName()) != 0     &&
              strcmp(name, "_Rb_tree_node_base")        != 0     &&
              strcmp(name, "fgIsA")                     != 0     &&
              strcmp(name, "atomic<TClass*>")           != 0);
    }

is_class() [2/3]

static bool JROOT::JRootClass::is_class ( const TBaseClass &  base_class )

inlinestaticinherited

Check base class against ROOT class names.

Parameters

base_class

base class

Returns

true if valid class name; else false

Definition at line 67 of file JRootClass.hh.

    {
      return is_class(base_class.GetName());
    }

is_class() [3/3]

static bool JROOT::JRootClass::is_class ( const TDataMember &  data_member )

inlinestaticinherited

Check data member against ROOT class names.

Parameters

data_member

data member

Returns

true if valid class name; else false

Definition at line 79 of file JRootClass.hh.

    {
      return is_class(data_member.GetTypeName());
    }

is_STLcontainer() [1/2]

static bool JROOT::JRootClass::is_STLcontainer ( const TBaseClass &  base_class )

inlinestaticinherited

Check if base class is STL container.

Parameters

base_class

base class

Returns

true if STL congtainer; else false

Definition at line 91 of file JRootClass.hh.

    {
      return (const_cast<TBaseClass&>(base_class).IsSTLContainer() != ROOT::kNotSTL);
    }

is_STLcontainer() [2/2]

static bool JROOT::JRootClass::is_STLcontainer ( const TDataMember &  data_member )

inlinestaticinherited

Check if data member is STL container.

Parameters

data_member

data member

Returns

true if STL congtainer; else false

Definition at line 103 of file JRootClass.hh.

    {
      return (const_cast<TDataMember&>(data_member).IsSTLContainer() != ROOT::kNotSTL);
    }

is_STLstring()

static bool JROOT::JRootClass::is_STLstring ( const TDataMember &  data_member )

inlinestaticinherited

Check if data member is STL string.

Parameters

data_member

data member

Returns

true if STL string; else false

Definition at line 115 of file JRootClass.hh.

    {
      return (strcmp(data_member.GetFullTypeName(), "string")       == 0 ||
              strcmp(data_member.GetFullTypeName(), "const string") == 0);
    }

is_static()

static bool JROOT::JRootClass::is_static ( const TDataMember &  data_member )

inlinestaticinherited

Check if data member is static.

Parameters

data_member

data member

Returns

true if static; else false

Definition at line 128 of file JRootClass.hh.

    {
      return (data_member.Property() & kIsStatic);
    }

is_tobject_member()

static bool JROOT::JRootClass::is_tobject_member ( const char *  name )

inlinestaticinherited

Check if name is one of TObject own data members (fBits or fUniqueID, for Root <= 6.30.04 at least)

Definition at line 138 of file JRootClass.hh.

    {
      TClass* o_class = TClass::GetClass<TObject>();
      return o_class->GetListOfRealData()->FindObject(name) != nullptr;
    }

getDictionary()

TDictionary* JROOT::JRootClass::getDictionary ( ) const

inlineinherited

Get dictionary.

Returns

pointer to dictionary

Definition at line 172 of file JRootClass.hh.

    {
      return dictionary;
    }

getOffset()

int JROOT::JRootClass::getOffset ( ) const

inlineinherited

Get offset of this class with respect to parent class.

Returns

offset

Definition at line 183 of file JRootClass.hh.

    {
      return offset;
    }

getClass()

TClass* JROOT::JRootClass::getClass ( ) const

inlineinherited

Get class.

Returns

pointer to class

Definition at line 194 of file JRootClass.hh.

    {
      return dynamic_cast<TClass*>(dictionary);
    }

getTypename()

const char* JROOT::JRootClass::getTypename ( ) const

inlineinherited

Get type name.

Returns

type name

Definition at line 205 of file JRootClass.hh.

    {
      if (dictionary != NULL)
        return dictionary->GetName();
      else
        return NULL;
    }

equals()

bool JROOT::JRootClass::equals ( const JRootClass &  object ) const

inlineinherited

Test equality of ROOT classes.

Parameters

object

ROOT class

Returns

true if both ROOT classes are same type; else false

Definition at line 231 of file JRootClass.hh.

    {
      return (this-> getTypename() != NULL &&
              object.getTypename() != NULL &&
              strcmp(this->getTypename(), object.getTypename()) == 0);
    }

print() [1/3]

void JROOT::JRootClass::print ( std::ostream &  out ) const

inlineinherited

Print ROOT class information.

Parameters

out	output stream

Definition at line 318 of file JRootClass.hh.

    {
      print(out, getTypename());
    }

print() [2/3]

void JROOT::JRootClass::print ( std::ostream &  out, const std::string &  prefix  ) const

inlineprotectedinherited

Print ROOT class information.

Parameters

out	output stream
prefix	prefix

Definition at line 358 of file JRootClass.hh.

    {
      if (this->is_valid()) {
 
        print(out, prefix, this->getTypename());
 
        if (this->getClass() != NULL) {
 
          if (this->getClass()->GetListOfBases() != NULL) {
          
            for (std::unique_ptr<TIterator> i(this->getClass()->GetListOfBases()->MakeIterator()); const TBaseClass* p = (const TBaseClass*) i->Next(); ) {
              if (!is_STLcontainer(*p))
                this->get(*p).print(out, prefix + "::" + p->GetName());
              else
                print(out, prefix + "::" + p->GetName(), this->get(*p).getTypename());
            }
          }
          
          if (this->getClass()->GetListOfDataMembers(kFALSE) != NULL) {
            
            for (std::unique_ptr<TIterator> i(this->getClass()->GetListOfDataMembers(kFALSE)->MakeIterator()); const TDataMember* p = (const TDataMember*) i->Next(); ) {
              if (!is_STLstring(*p) && !is_STLcontainer(*p))
                this->get(*p).print(out, prefix + (is_static(*p) ?  "::" : ".") + p->GetName());
              else
                print(out, prefix + (is_static(*p) ?  "::" : ".") + p->GetName(), this->get(*p).getTypename());
            }
          }
        }
      }
    }

print() [3/3]

static void JROOT::JRootClass::print ( std::ostream &  out, const std::string &  name, const std::string &  type  )

inlinestaticprotectedinherited

Print ROOT class information.

Parameters

out	output stream
name	name
type	type

Definition at line 397 of file JRootClass.hh.

    {
      using namespace std; 
 
      out << name << "  " << '(' << type << ')' << endl;
    }

Member Data Documentation

dictionary

TDictionary* JROOT::JRootClass::dictionary

protectedinherited

pointer to ROOT dictionary

Definition at line 326 of file JRootClass.hh.

offset

int JROOT::JRootClass::offset

protectedinherited

offset with respect to data structure [B]

Definition at line 327 of file JRootClass.hh.

address

template<class JPointer_t >

pointer_type JROOT::JAddress< JPointer_t >::address

inherited

Definition at line 426 of file JRootClass.hh.

---

The documentation for this struct was generated from the following file:

• JRootClass.hh