| java.lang.Object
 com.hp.hpl.jena.db.impl.DBProp
All known Subclasses: com.hp.hpl.jena.db.impl.DBPropLSet, com.hp.hpl.jena.db.impl.DBPropPrefix, com.hp.hpl.jena.db.impl.DBPropPSet, com.hp.hpl.jena.db.impl.DBPropGraph, com.hp.hpl.jena.db.impl.DBPropDatabase,
| DBProp | | abstract public class DBProp (Code) | | A base class for DB property information in a persistent store.
This is written in the style of enhanced nodes - no state is
stored in the DBStoreDesc, instead all state is in the
underlying graph and this is just provided as a convenience.
(We don't use enhanced nodes because, since we control everything
in the persistent store system description, we can avoid any
need to handle polymorhphism).
author:
csayers
version:
$Revision: 1.20 $ |
| Method Summary | |
| protected static Node | findProperty(Graph graph, Node_URI predicate)
| | public static Node | generateNodeURI()
| | public static String | generateUniqueID()
| | public Node | getNode()
| | protected Node | getPropNode(Node subject, Node predicate)
Answer the single node n such that (subject, predicate, n) is in the
graph, or null if there's no such n. | | protected Node | getPropNode(Node predicate)
Answer the single node n such that (self, predicate, n) is in the
graph, or null if there's no such n. | | protected String | getPropString(Node predicate)
Answer the single string s such that (self, predicate, literal(s)) is in the
graph, or null if there's no such s. | | public static ExtendedIterator | listTriples(SpecializedGraph g, Node self)
| | protected static SpecializedGraph.CompletionFlag | newComplete()
| | protected void | putPropNode(Node_URI predicate, Node node)
Add (self, predicate, node) to the graph. | | protected void | putPropString(Node_URI predicate, String value)
Add (self, predicate, literal(value)) to the graph. | | protected void | remove()
| | void | showGraph()
|
| generateNodeURI | | public static Node generateNodeURI()(Code) | | |
| generateUniqueID | | public static String generateUniqueID()(Code) | | |
| getPropNode | | protected Node getPropNode(Node subject, Node predicate)(Code) | | Answer the single node n such that (subject, predicate, n) is in the
graph, or null if there's no such n.
|
| getPropNode | | protected Node getPropNode(Node predicate)(Code) | | Answer the single node n such that (self, predicate, n) is in the
graph, or null if there's no such n.
|
| getPropString | | protected String getPropString(Node predicate)(Code) | | Answer the single string s such that (self, predicate, literal(s)) is in the
graph, or null if there's no such s.
|
| newComplete | | protected static SpecializedGraph.CompletionFlag newComplete()(Code) | | Utility method for creating a CompletionFlag; its value lies in having a short name!
a new SpecializedGraph.CompletionFlag() set to false. |
| putPropNode | | protected void putPropNode(Node_URI predicate, Node node)(Code) | | Add (self, predicate, node) to the graph.
|
| putPropString | | protected void putPropString(Node_URI predicate, String value)(Code) | | Add (self, predicate, literal(value)) to the graph.
|
| remove | | protected void remove()(Code) | | |
| showGraph | | void showGraph()(Code) | | |
|
|