Inheritance diagram for Join:

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Collaboration diagram for Join:

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Public Member Functions
	Join (FileId outer_id, FileId inner_id, FileId result_id, std::vector< FieldId > outer_fields, std::vector< FieldId > inner_fields, Catalog *catalog)
	Constructor for Join operation. Join subclasses use this constructor.

	~Join ()
	Destructor for the Join Operation.

Public Member Functions inherited from Operation
	Operation (FileId result_id, Catalog *catalog)
	Constructor for the Operation class. Because Operation is an abstract class, an object cannot be created, but this constructor is used by derived classes.

virtual	~Operation ()
	Destructor for the Operation class. Cleans up dynamic memory in result state.

virtual void	runOperation ()=0
	Runs the operation. Other than initial setup in the initialization, all the work of each operation is done in this function. It is a pure virtual method, and is implemented in inherited classes. All child classes must implement this method.

Protected Attributes
fileState	outer

fileState	inner

std::vector< FieldId >	outer_fields

std::vector< FieldId >	inner_fields

Protected Attributes inherited from Operation
fileState	result_state

Catalog *	catalog

Additional Inherited Members
Protected Member Functions inherited from Operation
void	_initState (FileId file_id, std::vector< FieldId > fields, fileState *state)
	Performs the file and temporary record setup for relational operators.

void	_delState (fileState *file_state)
	Deletes objects created in relop structs.

Constructor & Destructor Documentation

◆ Join()

Constructor for Join operation. Join subclasses use this constructor.

Parameters

outer_id.	FileId of the outer relation file.
inner_id.	FileId of the inner relation file.
result_id	FileId of the result file.
outer_fields.	Vector of FieldIds corresponding to the join fields in outer_rel
inner_fields.	Vector of FieldIds corresponding to the join fields in inner_rel
catalog.	Pointer to catalog

std::vector<FieldId> Join::inner_fields

protected

Inner fields used in the join operation

std::vector<FieldId> Join::outer_fields

protected

Outer fields used in the join operation

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