Uses of Package
org.jrdf.query.relation.operation

Packages that use org.jrdf.query.relation.operation

org.jrdf.query.execute
org.jrdf.query.relation.operation
org.jrdf.query.relation.operation.mem.join
org.jrdf.query.relation.operation.mem.join.anti
org.jrdf.query.relation.operation.mem.join.outer
org.jrdf.query.relation.operation.mem.join.semi
org.jrdf.query.relation.operation.mem.project
org.jrdf.query.relation.operation.mem.restrict
org.jrdf.query.relation.operation.mem.semidifference
org.jrdf.query.relation.operation.mem.union

Classes in org.jrdf.query.relation.operation used by org.jrdf.query.execute

DyadicJoin
Merely a marker interface - used to differentiate between two types of join.

NadicJoin
Merely a marker interface - used to differentiate between two types of join.

Project
Derives a new relation by removing attributes.

Restrict
Returns the list of relations with the same set of attributes.

Union

Classes in org.jrdf.query.relation.operation used by org.jrdf.query.relation.operation

DyadicJoin
Merely a marker interface - used to differentiate between two types of join.

Operation
Base interface.

Classes in org.jrdf.query.relation.operation used by org.jrdf.query.relation.operation.mem.join

DyadicJoin
Merely a marker interface - used to differentiate between two types of join.

NadicJoin
Merely a marker interface - used to differentiate between two types of join.

Operation
Base interface.

Classes in org.jrdf.query.relation.operation used by org.jrdf.query.relation.operation.mem.join.anti

AntiJoin
An extension to DyadicJoin - use to differentiate itself from other DyadicJoins The complement of semijoin.

DyadicJoin
Merely a marker interface - used to differentiate between two types of join.

Operation
Base interface.

SemiDifference
A more general form of difference - maybe replace by more basic operations (Not and Join for instance).

Classes in org.jrdf.query.relation.operation used by org.jrdf.query.relation.operation.mem.join.outer

AntiJoin
An extension to DyadicJoin - use to differentiate itself from other DyadicJoins The complement of semijoin.

DyadicJoin
Merely a marker interface - used to differentiate between two types of join.

NadicJoin
Merely a marker interface - used to differentiate between two types of join.

Operation
Base interface.

Union

Classes in org.jrdf.query.relation.operation used by org.jrdf.query.relation.operation.mem.join.semi

DyadicJoin
Merely a marker interface - used to differentiate between two types of join.

Operation
Base interface.

Classes in org.jrdf.query.relation.operation used by org.jrdf.query.relation.operation.mem.project

Project
Derives a new relation by removing attributes.

Classes in org.jrdf.query.relation.operation used by org.jrdf.query.relation.operation.mem.restrict

Operation
Base interface.

Restrict
Returns the list of relations with the same set of attributes.

Classes in org.jrdf.query.relation.operation used by org.jrdf.query.relation.operation.mem.semidifference

SemiDifference
A more general form of difference - maybe replace by more basic operations (Not and Join for instance).

Classes in org.jrdf.query.relation.operation used by org.jrdf.query.relation.operation.mem.union

DyadicJoin
Merely a marker interface - used to differentiate between two types of join.

NadicJoin
Merely a marker interface - used to differentiate between two types of join.

Operation
Base interface.

Union