wiscdb::InvalidSlotException Class Reference

An exception that is thrown when a slot that doesn't have data is requested from a page. More...

#include <invalid_slot_exception.h>

Inheritance diagram for wiscdb::InvalidSlotException:

Public Member Functions
	InvalidSlotException (const PageId page_num, const SlotId slot_num)
virtual PageId	page_number () const
virtual SlotId	slot_number () const
virtual const std::string &	message () const
virtual const char *	what () const throw ()

Protected Attributes
const PageId	page_number_
const SlotId	slot_number_
std::string	message_

Detailed Description

An exception that is thrown when a slot that doesn't have data is requested from a page.

Definition at line 21 of file invalid_slot_exception.h.

Constructor & Destructor Documentation

wiscdb::InvalidSlotException::InvalidSlotException	(	const PageId	page_num,
		const SlotId	slot_num
	)

Constructs an invalid slot exception for the given page and slot.

Parameters

page_num	Number of page containing slot.
slot_num	Number of slot which is invalid.

Definition at line 15 of file invalid_slot_exception.cpp.

    : WiscDbException(""),
      page_number_(page_num),
      slot_number_(slot_num) {
  std::stringstream ss;
  ss << "Attempt to access a slot which is not currently in use."
     << " Page: " << page_number_ << " Slot: " << slot_number_;
  message_.assign(ss.str());
}

Member Function Documentation

virtual const std::string& wiscdb::WiscDbException::message ( ) const

inlinevirtualinherited

Returns a message describing the problem that caused this exception.

Returns

Message describing the problem that caused this exception.

Definition at line 38 of file wiscdb_exception.h.

{ return message_; }

virtual PageId wiscdb::InvalidSlotException::page_number ( ) const

inlinevirtual

Returns the page number of the page containing the slot which caused this exception.

Definition at line 35 of file invalid_slot_exception.h.

{ return page_number_; }

virtual SlotId wiscdb::InvalidSlotException::slot_number ( ) const

inlinevirtual

Returns the slot number of the slot which caused this exception.

Definition at line 40 of file invalid_slot_exception.h.

{ return slot_number_; }

virtual const char* wiscdb::WiscDbException::what ( ) const throw ( )

inlinevirtualinherited

Returns a description of the exception.

Returns

Description of the exception.

Definition at line 45 of file wiscdb_exception.h.

{ return message_.c_str(); }

Member Data Documentation

std::string wiscdb::WiscDbException::message_

protectedinherited

Message describing the problem that caused this exception.

Definition at line 64 of file wiscdb_exception.h.

const PageId wiscdb::InvalidSlotException::page_number_

protected

Page number of the page containing the slot which caused this exception.

Definition at line 46 of file invalid_slot_exception.h.

const SlotId wiscdb::InvalidSlotException::slot_number_

protected

Slot number of the slot which caused this exception.

Definition at line 51 of file invalid_slot_exception.h.

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The documentation for this class was generated from the following files:

• invalid_slot_exception.h
• invalid_slot_exception.cpp