com.tinkerpop.blueprints.oupls.sail
Class GraphBasedMatcher

java.lang.Object
  com.tinkerpop.blueprints.oupls.sail.Matcher
      com.tinkerpop.blueprints.oupls.sail.GraphBasedMatcher

public class GraphBasedMatcher
extends Matcher

A matcher which uses the vertex-edge structure of the graph to retrieve statements. It does not require an edge index of any kind, but it can only be applied to triple patterns in which the subject or object is specified (which includes all patterns apart from "p", "c", and "pc").

Author:

Joshua Shinavier (http://fortytwo.net)

Field Summary

Fields inherited from class com.tinkerpop.blueprints.oupls.sail.Matcher

c, o, p, s

Constructor Summary

GraphBasedMatcher(boolean s, boolean p, boolean o, boolean c, com.tinkerpop.blueprints.oupls.sail.GraphSail.DataStore store)
Create a new graph-based matcher with the given triple pattern.

Method Summary

Iterable<Edge>

match(org.openrdf.model.Resource subject, org.openrdf.model.URI predicate, org.openrdf.model.Value object, org.openrdf.model.Resource context) Retrieve matching statements based on this matcher's triple pattern as well as the provided values.

Methods inherited from class com.tinkerpop.blueprints.oupls.sail.Matcher

toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

GraphBasedMatcher

public GraphBasedMatcher(boolean s,
                         boolean p,
                         boolean o,
                         boolean c,
                         com.tinkerpop.blueprints.oupls.sail.GraphSail.DataStore store)

Create a new graph-based matcher with the given triple pattern.

Parameters:

s - whether the subject is specified

p - whether the predicate is specified

o - whether the object is specified

c - whether the context is specified

store - the Blueprints data store

Method Detail

match

public Iterable<Edge> match(org.openrdf.model.Resource subject,
                            org.openrdf.model.URI predicate,
                            org.openrdf.model.Value object,
                            org.openrdf.model.Resource context)

Description copied from class: Matcher

Retrieve matching statements based on this matcher's triple pattern as well as the provided values. If a component such as subject or object is specified in the pattern, a non-null value must be provided to this method. Non-null values for unspecified components may be provided, but they will not be used.

Specified by:

match in class Matcher

Parameters:

subject - the subject value of matching statements

predicate - the predicate value of matching statements

object - the object of matching statements

context - the context of matching statements

Returns:

an iterator over all matching statements