org.d2rq.nodes
Class NodeMaker.EmptyNodeMaker
java.lang.Object
org.d2rq.nodes.NodeMaker.EmptyNodeMaker
- All Implemented Interfaces:
- NodeMaker
- Enclosing interface:
- NodeMaker
public static class NodeMaker.EmptyNodeMaker
- extends Object
- implements NodeMaker
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
makeNode
public Node makeNode(ResultRow tuple)
- Specified by:
makeNode
in interface NodeMaker
describeSelf
public void describeSelf(NodeSetFilter c)
- Specified by:
describeSelf
in interface NodeMaker
projectionSpecs
public Set<ProjectionSpec> projectionSpecs()
- Specified by:
projectionSpecs
in interface NodeMaker
orderSpecs
public List<OrderOp.OrderSpec> orderSpecs(boolean ascending)
- Description copied from interface:
NodeMaker
- Returns expressions (with possible ASC/DESC marker) that re necessary
for ordering a relation by the nodes in this NodeMaker. Uses SPARQL
semantics for ordering.
- Specified by:
orderSpecs
in interface NodeMaker
accept
public void accept(NodeMakerVisitor visitor)
- Specified by:
accept
in interface NodeMaker