Python GraphPattern.addConstraintの例

コード例 #1

>
        <rdf:Description rdf:ID="book1">
                <dc:title>SPARQL Tutorial</dc:title>
                <ns:price rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">42</ns:price>
        </rdf:Description>
        <rdf:Description rdf:ID="book2">
                <dc:title>The Semantic Web</dc:title>
                <ns:price rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">23</ns:price>
        </rdf:Description>
        <rdf:Description rdf:ID="book3">
                <dc:title>The Semantic Web Old</dc:title>
                <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#date">2000-03-12</dc:date>
        </rdf:Description>
        <rdf:Description rdf:ID="book4">
                <dc:title>The Semantic Web New</dc:title>
                <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#date">2005-03-02</dc:date>
        </rdf:Description>
</rdf:RDF>
"""

select = ["?title", "?price"]
pattern = GraphPattern([("?x", ns_dc["title"], "?title"),
                        ("?x", ns_ns["price"], "?price")])
pattern.addConstraint(lt("?price", 30))
optional = []
tripleStore = None
expected = '''
  ?title: The Semantic Web
  ?price: 23
'''

コード例 #2

        </rdf:Description>
        <rdf:Description>
                <foaf:name>Bob</foaf:name>
                <foaf:mbox>[email protected]</foaf:mbox>
        </rdf:Description>
</rdf:RDF>
"""

from testSPARQL import ns_rdf
from testSPARQL import ns_rdfs
from testSPARQL import ns_dc
from testSPARQL import ns_foaf
from testSPARQL import ns_ns
from testSPARQL import ns_book

from rdflib import Literal
from rdfextras.sparql.graph import GraphPattern

from rdfextras.sparql.operators import isURI

select = ["?name", "?mbox"]
pattern = GraphPattern([("?x", ns_foaf["name"], "?name"),
                        ("?x", ns_foaf["mbox"], "?mbox")])
pattern.addConstraint(isURI("?mbox"))
optional = []
tripleStore = None
expected = '''
  ?name: Alice
  ?mbox: mailto:[email protected]
'''

コード例 #3

ファイル: Test5_2.py プロジェクト: RDFLib/rdfextras

   xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
   xmlns:dc="http://purl.org/dc/elements/1.1/"
   xmlns:foaf="http://xmlns.com/foaf/0.1/"
   xmlns:ns = "http://example.org/ns#"
   xmlns:book = "http://example.org/book"
>
        <rdf:Description rdf:ID="book1">
                <dc:title>SPARQL Tutorial</dc:title>
                <ns:price rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">42</ns:price>
        </rdf:Description>
        <rdf:Description rdf:ID="book2">
                <dc:title>The Semantic Web</dc:title>
                <ns:price rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">23</ns:price>
        </rdf:Description>
</rdf:RDF>
"""

select = ["?title", "?price"]
pattern = GraphPattern([("?x", ns_dc["title"], "?title")])
optional = GraphPattern([("?x", ns_ns["price"], "?price")])
optional.addConstraint(lt("?price", 30))
tripleStore = None
expected = """
  ?title: SPARQL Tutorial
  ?price: None

  ?title: The Semantic Web
  ?price: 23
"""

コード例 #4

ファイル: Test11_3.py プロジェクト: RDFLib/rdfextras

</rdf:RDF>
"""



from testSPARQL import ns_rdf
from testSPARQL import ns_rdfs
from testSPARQL import ns_dc
from testSPARQL import ns_foaf
from testSPARQL import ns_ns
from testSPARQL import ns_book

from rdflib import Literal
from rdfextras.sparql.graph import GraphPattern

from rdfextras.sparql.operators import isURI


select      = ["?name", "?mbox"]
pattern     = GraphPattern([("?x", ns_foaf["name"],"?name"),("?x",ns_foaf["mbox"],"?mbox")])
pattern.addConstraint(isURI("?mbox"))
optional    = []
tripleStore = None
expected = '''
  ?name: Alice
  ?mbox: mailto:[email protected]
'''

コード例 #5

ファイル: Test3_2.py プロジェクト: RDFLib/rdfextras

   xmlns:book = "http://example.org/book"
>
        <rdf:Description rdf:ID="book1">
                <dc:title>SPARQL Tutorial</dc:title>
                <ns:price rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">42</ns:price>
        </rdf:Description>
        <rdf:Description rdf:ID="book2">
                <dc:title>The Semantic Web</dc:title>
                <ns:price rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">23</ns:price>
        </rdf:Description>
        <rdf:Description rdf:ID="book3">
                <dc:title>The Semantic Web Old</dc:title>
                <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#date">2000-03-12</dc:date>
        </rdf:Description>
        <rdf:Description rdf:ID="book4">
                <dc:title>The Semantic Web New</dc:title>
                <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#date">2005-03-02</dc:date>
        </rdf:Description>
</rdf:RDF>
"""

select = ["?title", "?price"]
pattern = GraphPattern([("?x", ns_dc["title"], "?title"), ("?x", ns_ns["price"], "?price")])
pattern.addConstraint(lt("?price", 30))
optional = []
tripleStore = None
expected = """
  ?title: The Semantic Web
  ?price: 23
"""

コード例 #6

   xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
   xmlns:dc="http://purl.org/dc/elements/1.1/"
   xmlns:foaf="http://xmlns.com/foaf/0.1/"
   xmlns:ns = "http://example.org/ns#"
   xmlns:book = "http://example.org/book"
>
        <rdf:Description rdf:ID="book1">
                <dc:title>SPARQL Tutorial</dc:title>
                <ns:price rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">42</ns:price>
        </rdf:Description>
        <rdf:Description rdf:ID="book2">
                <dc:title>The Semantic Web</dc:title>
                <ns:price rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">23</ns:price>
        </rdf:Description>
</rdf:RDF>
"""

select = ["?title", "?price"]
pattern = GraphPattern([("?x", ns_dc["title"], "?title")])
optional = GraphPattern([("?x", ns_ns["price"], "?price")])
optional.addConstraint(lt("?price", 30))
tripleStore = None
expected = '''
  ?title: SPARQL Tutorial
  ?price: None

  ?title: The Semantic Web
  ?price: 23
'''