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23 Oct 2016 00:59:44 -0000 Received: from git1-us-west.apache.org (HELO git1-us-west.apache.org) (140.211.11.23) by apache.org (qpsmtpd/0.29) with ESMTP; Sun, 23 Oct 2016 00:59:44 +0000 Received: by git1-us-west.apache.org (ASF Mail Server at git1-us-west.apache.org, from userid 33) id 7936EDFBA8; Sun, 23 Oct 2016 00:59:44 +0000 (UTC) Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: stain@apache.org To: commits@commonsrdf.incubator.apache.org Date: Sun, 23 Oct 2016 00:59:53 -0000 Message-Id: In-Reply-To: <23a0257a348d47708ecf55446d048594@git.apache.org> References: <23a0257a348d47708ecf55446d048594@git.apache.org> X-Mailer: ASF-Git Admin Mailer Subject: [10/22] incubator-commonsrdf git commit: RDFFactory documentation archived-at: Sun, 23 Oct 2016 00:59:52 -0000 RDFFactory documentation Project: http://git-wip-us.apache.org/repos/asf/incubator-commonsrdf/repo Commit: http://git-wip-us.apache.org/repos/asf/incubator-commonsrdf/commit/f229c171 Tree: http://git-wip-us.apache.org/repos/asf/incubator-commonsrdf/tree/f229c171 Diff: http://git-wip-us.apache.org/repos/asf/incubator-commonsrdf/diff/f229c171 Branch: refs/heads/COMMONSRDF-46 Commit: f229c1711fb70ad934d24b1d7530ecfd5cac5ba3 Parents: 102a9fc Author: Stian Soiland-Reyes Authored: Wed Oct 19 18:03:24 2016 +0100 Committer: Stian Soiland-Reyes Committed: Wed Oct 19 18:03:24 2016 +0100 ---------------------------------------------------------------------- src/site/markdown/userguide.md | 74 ++++++++++++++++++------------------- 1 file changed, 37 insertions(+), 37 deletions(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/incubator-commonsrdf/blob/f229c171/src/site/markdown/userguide.md ---------------------------------------------------------------------- diff --git a/src/site/markdown/userguide.md b/src/site/markdown/userguide.md index a18436d..8451ab9 100644 --- a/src/site/markdown/userguide.md +++ b/src/site/markdown/userguide.md @@ -28,8 +28,8 @@ Commons RDF [API](apidocs/). * [RDF concepts](#RDF_concepts) * [Using Commons RDF from Maven](#Using_Commons_RDF_from_Maven) * [Creating Commons RDF instances](#Creating_Commons_RDF_instances) - * [Creating a RDFTermFactory](#Creating_a_RDFTermFactory) - * [Using a RDFTermFactory](#Using_a_RDFTermFactory) + * [Creating a RDFFactory](#Creating_a_RDFFactory) + * [Using a RDFFactory](#Using_a_RDFFactory) * [RDF terms](#RDF_terms) * [N-Triples string](#N-Triples_string) * [IRI](#IRI) @@ -146,25 +146,25 @@ see the [download page](download.html) for the latest version._ To create instances of Commons RDF interfaces like [`Graph`](apidocs/org/apache/commons/rdf/api/Graph.html) and [`IRI`](apidocs/org/apache/commons/rdf/api/IRI.html) you will need a -[RDFTermFactory](apidocs/org/apache/commons/rdf/api/RDFTermFactory.html). +[RDFFactory](apidocs/org/apache/commons/rdf/api/RDFFactory.html). -### Creating a RDFTermFactory +### Creating a RDFFactory How to get an instance of this factory is implementation-specific, for the _simple_ implementation, you can construct the -[SimpleRDFTermFactory](apidocs/org/apache/commons/rdf/simple/SimpleRDFTermFactory.html): +[SimpleRDFFactory](apidocs/org/apache/commons/rdf/simple/SimpleRDFFactory.html): ```java import org.apache.commons.rdf.api.*; -import org.apache.commons.rdf.simple.SimpleRDFTermFactory; +import org.apache.commons.rdf.simple.SimpleRDFFactory; // ... -RDFTermFactory factory = new SimpleRDFTermFactory(); +RDFFactory factory = new SimpleRDFFactory(); ``` If you don't want to depend on instantiating a concrete implementation, you can alternatively use the [ServiceLoader](http://docs.oracle.com/javase/8/docs/api/java/util/ServiceLoader.html) -to lookup any `RDFTermFactory` implementations found on the classpath: +to lookup any `RDFFactory` implementations found on the classpath: ```java import java.util.Iterator; @@ -172,16 +172,16 @@ import java.util.ServiceLoader; import org.apache.commons.rdf.api.*; // ... -ServiceLoader loader = ServiceLoader.load(RDFTermFactory.class); -Iterator iterator = loader.iterator(); -RDFTermFactory factory = iterator.next(); +ServiceLoader loader = ServiceLoader.load(RDFFactory.class); +Iterator iterator = loader.iterator(); +RDFFactory factory = iterator.next(); ``` Note that the `ServiceLoader` approach above might not work well within split classloader systems like OSGi. -### Using a RDFTermFactory +### Using a RDFFactory Using the factory you can construct any [RDFTerm](apidocs/org/apache/commons/rdf/api/RDFTerm.html), e.g. to create a @@ -201,12 +201,12 @@ You can also create a stand-alone [Triple](apidocs/org/apache/commons/rdf/api/Tr Triple triple = factory.createTriple(aliceBlankNode, nameIri, aliceLiteral); ``` -The [RDFTermFactory](apidocs/org/apache/commons/rdf/api/RDFTermFactory.html) also +The [RDFFactory](apidocs/org/apache/commons/rdf/api/RDFFactory.html) also contains more specific variants of some of the methods above, e.g. to create a typed literal. Note that for any given implementation, `RDFTerm` instances need not be created -using a `RDFTermFactory`. More likely, implementation-specific methods might create these +using a `RDFFactory`. More likely, implementation-specific methods might create these objects as part of data parsing, storage lookup and queries. @@ -292,7 +292,7 @@ _predicate_ or _object_ of a [Triple](apidocs/org/apache/commons/rdf/api/Triple. [Quad](apidocs/org/apache/commons/rdf/api/Quad.html), where it can also be used a _graph name_. -To create an `IRI` instance from a `RDFTermFactory`, use [createIRI](apidocs/org/apache/commons/rdf/api/RDFTermFactory.html#createIRI-java.lang.String-): +To create an `IRI` instance from a `RDFFactory`, use [createIRI](apidocs/org/apache/commons/rdf/api/RDFFactory.html#createIRI-java.lang.String-): ```java IRI iri = factory.createIRI("http://example.com/alice"); @@ -353,8 +353,8 @@ where it can also be used a _graph name_. To create a new [BlankNode](apidocs/org/apache/commons/rdf/api/BlankNode.html) instance from a -`RDFTermFactory`, use -[createBlankNode](apidocs/org/apache/commons/rdf/api/RDFTermFactory.html#createBlankNode--): +`RDFFactory`, use +[createBlankNode](apidocs/org/apache/commons/rdf/api/RDFFactory.html#createBlankNode--): ```java BlankNode bnode = factory.createBlankNode(); @@ -377,9 +377,9 @@ System.out.println(bnode.equals(factory.createBlankNode())); Sometimes it can be beneficial to create a blank node based on a localized _name_, without needing to keep object references -to earlier `BlankNode` instances. For that purpose, `RDFTermFactory` +to earlier `BlankNode` instances. For that purpose, `RDFFactory` may support the -[expanded createBlankNode](apidocs/org/apache/commons/rdf/api/RDFTermFactory.html#createBlankNode-java.lang.String-) +[expanded createBlankNode](apidocs/org/apache/commons/rdf/api/RDFFactory.html#createBlankNode-java.lang.String-) method: ```java @@ -408,12 +408,12 @@ System.out.println(b1.equals(factory.createBlankNode("b1"))); ``` > `true` -That means that care should be taken to create a new `RDFTermFactory` if making +That means that care should be taken to create a new `RDFFactory` if making "different" blank nodes (e.g. parsed from a different RDF file) which accidfentally might have the same name: ```java -System.out.println(b1.equals(new SimpleRDFTermFactory().createBlankNode("b1"))); +System.out.println(b1.equals(new SimpleRDFFactory().createBlankNode("b1"))); ``` > `false` @@ -455,8 +455,8 @@ an _object_ of a [Triple](apidocs/org/apache/commons/rdf/api/Triple.html#getObje or [Quad](apidocs/org/apache/commons/rdf/api/Quad.html#getObject--) To create a [Literal](apidocs/org/apache/commons/rdf/api/Literal.html) instance -from an `RDFTermFactory`, use -[createLiteral](apidocs/org/apache/commons/rdf/api/RDFTermFactory.html#createLiteral-java.lang.String-): +from an `RDFFactory`, use +[createLiteral](apidocs/org/apache/commons/rdf/api/RDFFactory.html#createLiteral-java.lang.String-): ```java Literal literal = factory.createLiteral("Hello world!"); @@ -515,7 +515,7 @@ literal data type. To create a literal with any other [datatype](http://www.w3.org/TR/rdf11-concepts/#dfn-datatype-iri) (e.g. `xsd:double`), then create the datatype `IRI` and pass it to the expanded -[createLiteral](apidocs/org/apache/commons/rdf/api/RDFTermFactory.html#createLiteral-java.lang.String-org.apache.commons.rdf.api.IRI-): +[createLiteral](apidocs/org/apache/commons/rdf/api/RDFFactory.html#createLiteral-java.lang.String-org.apache.commons.rdf.api.IRI-): ```java IRI xsdDouble = factory.createIRI("http://www.w3.org/2001/XMLSchema#double"); @@ -552,7 +552,7 @@ System.out.println(Types.XSD_STRING.equals(literal.getDatatype())); Literals may be created with an associated [language tag](http://www.w3.org/TR/rdf11-concepts/#dfn-language-tagged-string) -using the expanded [createLiteral](apidocs/org/apache/commons/rdf/api/RDFTermFactory.html#createLiteral-java.lang.String-java.lang.String-): +using the expanded [createLiteral](apidocs/org/apache/commons/rdf/api/RDFFactory.html#createLiteral-java.lang.String-java.lang.String-): ```java Literal inSpanish = factory.createLiteral("¡Hola, Mundo!", "es"); @@ -610,8 +610,8 @@ RDF 1.1 consists of: To construct a [Triple](apidocs/org/apache/commons/rdf/api/Triple.html) from a -`RDFTermFactory`, use -[createTriple](apidocs/org/apache/commons/rdf/api/RDFTermFactory.html#createTriple-org.apache.commons.rdf.api.BlankNodeOrIRI-org.apache.commons.rdf.api.IRI-org.apache.commons.rdf.api.RDFTerm-): +`RDFFactory`, use +[createTriple](apidocs/org/apache/commons/rdf/api/RDFFactory.html#createTriple-org.apache.commons.rdf.api.BlankNodeOrIRI-org.apache.commons.rdf.api.IRI-org.apache.commons.rdf.api.RDFTerm-): ```java BlankNodeOrIRI subject = factory.createBlankNode(); @@ -700,7 +700,7 @@ Commons RDF represents such statements using the class [Quad](apidocs/org/apache * The [graph name](apidocs/org/apache/commons/rdf/api/Quad.html#getGraphName--), which is an [IRI](apidocs/org/apache/commons/rdf/api/IRI.html) or a [BlankNode](apidocs/org/apache/commons/rdf/api/BlankNode.html); wrapped as an `java.util.Optional` -To create a `Quad`, use [createQuad](apidocs/org/apache/commons/rdf/api/RDFTermFactory.html#createQuad-org.apache.commons.rdf.api.BlankNodeOrIRI-org.apache.commons.rdf.api.BlankNodeOrIRI-org.apache.commons.rdf.api.IRI-org.apache.commons.rdf.api.RDFTerm-): +To create a `Quad`, use [createQuad](apidocs/org/apache/commons/rdf/api/RDFFactory.html#createQuad-org.apache.commons.rdf.api.BlankNodeOrIRI-org.apache.commons.rdf.api.BlankNodeOrIRI-org.apache.commons.rdf.api.IRI-org.apache.commons.rdf.api.RDFTerm-): ``` BlankNodeOrIRI graph = factory.createIRI("http://example.com/graph"); @@ -810,7 +810,7 @@ System.out.println(quadAsTriple.equals(otherQuad.asTriple()); > `true` To create a triple from a quad, you will need to use -[RDFTermFactory.createQuad](apidocs/org/apache/commons/rdf/api/RDFTermFactory.html#createQuad-org.apache.commons.rdf.api.BlankNodeOrIRI-org.apache.commons.rdf.api.BlankNodeOrIRI-org.apache.commons.rdf.api.IRI-org.apache.commons.rdf.api.RDFTerm-) +[RDFFactory.createQuad](apidocs/org/apache/commons/rdf/api/RDFFactory.html#createQuad-org.apache.commons.rdf.api.BlankNodeOrIRI-org.apache.commons.rdf.api.BlankNodeOrIRI-org.apache.commons.rdf.api.IRI-org.apache.commons.rdf.api.RDFTerm-) providing the desired graph name: ``` @@ -867,8 +867,8 @@ A [graph](http://www.w3.org/TR/rdf11-concepts/#section-rdf-graph) is a collection of triples. To create a [Graph](apidocs/org/apache/commons/rdf/api/Graph.html) instance -from a `RDFTermFactory`, use -[createGraph()](apidocs/org/apache/commons/rdf/api/RDFTermFactory.html#createGraph--): +from a `RDFFactory`, use +[createGraph()](apidocs/org/apache/commons/rdf/api/RDFFactory.html#createGraph--): ```java Graph graph = factory.createGraph(); @@ -1037,8 +1037,8 @@ A [dataset](https://www.w3.org/TR/rdf11-concepts/#section-dataset) is a collection of quads, or if you like, a collection of `Graph`s. To create a [Dataset](apidocs/org/apache/commons/rdf/api/Dataset.html) instance -from a `RDFTermFactory`, use -[createDataset()](apidocs/org/apache/commons/rdf/api/RDFTermFactory.html#createDataset--): +from a `RDFFactory`, use +[createDataset()](apidocs/org/apache/commons/rdf/api/RDFFactory.html#createDataset--): ```java Dataset dataset = factory.createDataset(); @@ -1065,7 +1065,7 @@ dataset.remove(quad); The convenience method [add(g,s,p,o)](apidocs/org/apache/commons/rdf/api/Dataset.html#add-org.apache.commons.rdf.api.BlankNodeOrIRI-org.apache.commons.rdf.api.BlankNodeOrIRI-org.apache.commons.rdf.api.IRI-org.apache.commons.rdf.api.RDFTerm-) take an additional `BlankNodeOrIRI` parameter for the -graph name - matching `RDFTermFactory.createQuad(g,s,p,o)`. +graph name - matching `RDFFactory.createQuad(g,s,p,o)`. Note that the expanded pattern methods like [contains(g,s,p,o)](apidocs/org/apache/commons/rdf/api/Dataset.html#contains-java.util.Optional-org.apache.commons.rdf.api.BlankNodeOrIRI-org.apache.commons.rdf.api.IRI-org.apache.commons.rdf.api.RDFTerm-) and [stream(g,s,p,o)](apidocs/org/apache/commons/rdf/api/Dataset.html#stream-java.util.Optional-org.apache.commons.rdf.api.BlankNodeOrIRI-org.apache.commons.rdf.api.IRI-org.apache.commons.rdf.api.RDFTerm-) uses `null` as a wildcard pattern, and @@ -1206,7 +1206,7 @@ implementations provided by Commons RDF Different RDF frameworks might have different mechanisms to retrieve a Commons RDF objects like `Graph` or `Triple` (e.g. returned from a query). -Commons RDF provides a `RDFTermFactory` interface as an interoperable +Commons RDF provides a `RDFFactory` interface as an interoperable way to create new instances, but does not mandate how the factory itself should be instantiated (e.g. a factory might be returned for an open network connection). @@ -1219,10 +1219,10 @@ RDF interfaces, Commons RDF objects are intended to be cross-compatible. Thus a client would be able to mix and match objects from multiple implementations: ```java -import com.example.foo.FooRDFTermFactory; +import com.example.foo.FooRDFFactory; import net.example.bar.BarGraph; -RDFTermFactory fooFactory = new FooRDFTermFactory(); +RDFFactory fooFactory = new FooRDFFactory(); FooGraph g1 = (FooGraph) fooFactory.createGraph(); // Foo-specific load method g1.load("dataset.ttl");