Turtle DB
A mini DDBMS
ca.uqac.dim.ddb.NAryRelation Class Reference
Inheritance diagram for ca.uqac.dim.ddb.NAryRelation:
ca.uqac.dim.ddb.Relation ca.uqac.dim.ddb.Intersection ca.uqac.dim.ddb.Union

List of all members.

Public Member Functions

Schema getSchema ()
void addOperand (Relation r)
int tupleCount ()

Protected Member Functions

 NAryRelation ()

Protected Attributes

List< Relationm_relations

Constructor & Destructor Documentation


Member Function Documentation

Returns the relation's schema

Returns:
The schema

Implements ca.uqac.dim.ddb.Relation.

Returns the number of actual tuples present in the query. This number is different from the cardinality of the query; it counts the number of tuples that are present in the leaves of the query tree.

Returns:
The tuple count

Implements ca.uqac.dim.ddb.Relation.


Member Data Documentation


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