| java.lang.Object
 com.hp.hpl.jena.graph.query.Query
| Query | | public class Query (Code) | | The class of graph queries, plus some machinery (which should move) for
implementing them.
author:
hedgehog |
| Inner Class :public static class UnboundVariableException extends JenaException | |
| Field Summary | |
| final public static Node | ANY
A convenient synonym for Node.ANY, used in a match to match anything. | | final public static Node | O
A query variable called "O". | | final public static Node | P
A query variable called "P". | | final public static Node | S
A query variable called "S". | | final public static Node | X
A query variable called "X". | | final public static Node | Y
A query variable called "Y". | | final public static Node | Z
A query variable called "Z". | | final public static TripleSorter | dontSort
|
| Constructor Summary | |
| public | Query()
| | public | Query(Graph pattern)
Initialiser for Query; makes a Query with its matches taken from
pattern. |
| Method Summary | |
| public Query | addConstraint(Expression e)
| | public Query | addMatch(Node s, Node p, Node o)
Add an (S, P, O) match to the query's collection of match triples. | | public Query | addMatch(String name, Node s, Node p, Node o)
Add an (S, P, O) match triple to this query to match against the graph labelled
with name. | | public Query | addMatch(Triple t)
Add a triple to the query's collection of match triples. | | public NamedGraphMap | args()
| | public ExtendedIterator | executeBindings(Graph g, Node[] results)
| | public ExtendedIterator | executeBindings(Graph g, List stages, Node[] results)
| | public ExtendedIterator | executeBindings(NamedGraphMap args, Node[] nodes)
| | public ExtendedIterator | executeBindings(List outStages, NamedGraphMap args, Node[] nodes)
the standard "default" implementation of executeBindings. | | public ExpressionSet | getConstraints()
| | public List | getPattern()
Answer a list of the triples that have been added to this query. | | public TripleSorter | getSorter()
| | public NamedTripleBunches | getTriples()
| | public int | getVariableCount()
| | public void | setTripleSorter(TripleSorter ts)
|
| ANY | | final public static Node ANY(Code) | | A convenient synonym for Node.ANY, used in a match to match anything.
|
| O | | final public static Node O(Code) | | A query variable called "O".
|
| P | | final public static Node P(Code) | | A query variable called "P".
|
| S | | final public static Node S(Code) | | A query variable called "S".
|
| X | | final public static Node X(Code) | | A query variable called "X".
|
| Y | | final public static Node Y(Code) | | A query variable called "Y".
|
| Z | | final public static Node Z(Code) | | A query variable called "Z".
|
| Query | | public Query()(Code) | | Initialiser for Query; makes an empty Query [no matches, no constraints]
|
| Query | | public Query(Graph pattern)(Code) | | Initialiser for Query; makes a Query with its matches taken from
pattern.
Parameters:
pattern - a Graph whose triples are used as match elements |
| addMatch | | public Query addMatch(Node s, Node p, Node o)(Code) | | Add an (S, P, O) match to the query's collection of match triples. Return
this query for cascading.
Parameters:
s - the node to match the subject
Parameters:
p - the node to match the predicate
Parameters:
o - the node to match the object this Query, for cascading |
| addMatch | | public Query addMatch(String name, Node s, Node p, Node o)(Code) | | Add an (S, P, O) match triple to this query to match against the graph labelled
with name. Return this query for cascading.
Parameters:
name - the name that will identify the graph in the matching
Parameters:
s - the node to match the subject
Parameters:
p - the node to match the predicate
Parameters:
o - the node to match the object this Query, for cascading. |
| addMatch | | public Query addMatch(Triple t)(Code) | | Add a triple to the query's collection of match triples. Return this query
for cascading.
Parameters:
t - an (S, P, O) triple to add to the collection of matches this Query, for cascading |
| getPattern | | public List getPattern()(Code) | | Answer a list of the triples that have been added to this query.
(Note: ignores "named triples").
List |
| getVariableCount | | public int getVariableCount()(Code) | | |
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