tuple.h File Reference

#include "attribute.h"
#include "set.h"

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Typedefs
typedef Set	Tuple

Functions
Tuple *	tuple_create (void)
	Create a new Tuple.
void	tuple_destroy (Tuple *t)
	Destroy a Tuple and free its memory.
int	tuple_add_attribute (Tuple *t, Attribute *attr)
	Add an Attribute to a Tuple.
void	tuple_print (const Tuple *t)
	Print a Tuple to stdout.
Attribute *	tuple_find_attribute (Tuple *t, const char *name)
	Find an Attribute in a Tuple by name.
int	tuple_equals (Tuple *a, Tuple *b)
	Check if two Tuples are equal (all attributes match).

Typedef Documentation

Tuple

typedef Set Tuple

Function Documentation

tuple_add_attribute()

int tuple_add_attribute	(	Tuple *	t,
		Attribute *	attr
	)

Add an Attribute to a Tuple.

Parameters

t	Pointer to the Tuple.
attr	Pointer to the Attribute to add.

Returns

1 if added, 0 if already present, -1 on error.

tuple_create()

Tuple * tuple_create

(

void

)

Create a new Tuple.

Returns

Pointer to new Tuple, or NULL on failure.

tuple_destroy()

void tuple_destroy

(

Tuple *

t

)

Destroy a Tuple and free its memory.

Parameters

t	Pointer to the Tuple to destroy.

tuple_equals()

int tuple_equals	(	Tuple *	a,
		Tuple *	b
	)

Check if two Tuples are equal (all attributes match).

Parameters

a	Pointer to first Tuple.
b	Pointer to second Tuple.

Returns

1 if equal, 0 otherwise.

tuple_find_attribute()

Attribute * tuple_find_attribute	(	Tuple *	t,
		const char *	name
	)

Find an Attribute in a Tuple by name.

Parameters

t	Pointer to the Tuple.
name	Name of the Attribute to find.

Returns

Pointer to the found Attribute, or NULL if not found.

tuple_print()

void tuple_print

(

const Tuple *

t

)

Print a Tuple to stdout.

Parameters

t	Pointer to the Tuple to print.