| Interface | Description |
|---|---|
| BoundJoinTupleExpr |
Marker interface indicating that instances are applicable for bound join processing (see
ControlledWorkerBoundJoin |
| EmptyResult |
A generic interface to mark some TupleExpr as empty.
|
| ExclusiveTupleExpr |
Interface representing nodes that can exclusively be evaluated at a single
StatementSource. |
| ExclusiveTupleExprRenderer |
A specialization of
ExclusiveTupleExpr which provides definitions how the expressions can be rendered to a
sub-query. |
| FedXTupleExpr |
Interface marking known FedX algebra nodes.
|
| FilterTuple |
Expressions implementing this interface can apply some
FilterValueExpr during evaluation. |
| FilterValueExpr |
Interface to indicate filter expressions.
|
| QueryRef |
Interface to access the
QueryInfo from all FedX Algebra nodes. |
| StatementTupleExpr |
Interface for any expression that can be evaluated
|
| VariableExpr |
Interface for algebra nodes that can return the free variables of the expression.
|
| Class | Description |
|---|---|
| BoundFiltersNode |
A
QueryModelNode for printing the bound filter vars (e.g. |
| CheckStatementPattern |
A statement pattern with no free variables when provided with some particular BindingSet in evaluate.
|
| ConjunctiveFilterExpr |
ConjunctiveFilterExpr maintains a list of conjunctive (i.e.
|
| EmptyNJoin |
Algebra construct representing an empty join.
|
| EmptyNUnion |
Algebra construct representing an empty union.
|
| EmptyStatementPattern |
EmptyStatementPattern represents a statement that cannot produce any results for the registered endpoints.
|
| ExclusiveArbitraryLengthPath |
An
ArbitraryLengthPath node which can be evaluated at a single node. |
| ExclusiveGroup |
Represents a group of
ExclusiveTupleExpr that can only produce results at a single endpoint, the
StatementSource. |
| ExclusiveStatement |
Represents a StatementPattern that can only produce results at a single endpoint, the owner.
|
| FedXLeftJoin | |
| FedXService | |
| FedXStatementPattern |
Base class providing all common functionality for FedX StatementPatterns
|
| FilterExpr |
FilterExpr maintains information for a particular FILTER expression.
|
| NJoin |
A tuple expression that represents an nary-Join.
|
| NodeFactory |
A factory that produces globally unique IDS which are used as node identifiers, e.g.
|
| NTuple |
Base class for any nary-tuple expression
|
| NUnion |
A tuple expression that represents an nary-Union.
|
| PassThroughTupleExpr |
Marker
TupleExpr that is used from FedXTupleQuery.evaluate(TupleQueryResultHandler) to allow for
passing through of results to the handler. |
| PrecompiledQueryNode |
Node representing a precompiled query.
|
| SingleSourceQuery |
A query which has a single relevant source.
|
| StatementSource |
A structure representing a relevant source for some expression.
|
| StatementSourcePattern |
Represents statements that can produce results at a some particular endpoints, the statement sources.
|
| TrueStatementPattern |
A TrueStatementPattern represents a stmt with no free variables which in addition is available at one of the provided
sources.
|
| Enum | Description |
|---|---|
| StatementSource.StatementSourceType |
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