Class | Description |
---|---|
AlgebraicOperator |
AlgebraicOperator: The base class for all algebraic operators.
|
Group | |
InitialProjection |
InitialProjection: An initial projection -- used to project out
attributes before the final projection (this is a hack, really, but
it will do for now).
|
Join |
Join: An algebraic join operator.
|
Projection |
Projection: The algebraic representation of a projection.
|
Qualification |
Qualification: The base class of all algebraic qualifications.
|
Selection |
Selection: The algebraic representation of a selection.
|
Sort | |
Variable |
Variable: Encapsulates a qualification/projection variable.
|
VariableValueQualification |
VariableValueQualification: A qualification between a variable and
a value.
|
VariableVariableQualification |
VariableVariableQualification: A qualification between two
variables.
|
Enum | Description |
---|---|
Qualification.Relationship |