Examples of com.hp.hpl.jena.graph.Graph.find()

com.hp.hpl.jena.graph.Graph.find()
Returns an iterator over all the Triples that match the triple pattern. @param m a Triple[Match] encoding the pattern to look for @return an iterator of all triples in this graph that match m

    public void testFindByFluidTriple()
    {
        Graph g = getGraphWith( "x y z " );
        Set<Triple> expect = tripleSet( "x y z" );
        assertEquals( expect, g.find( triple( "?? y z" ) ).toSet() );
        assertEquals( expect, g.find( triple( "x ?? z" ) ).toSet() );
        assertEquals( expect, g.find( triple( "x y ??" ) ).toSet() );
    }


    public void testContainsConcrete()
    {

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    {
        Graph g = getGraphWith( "x y z " );
        Set<Triple> expect = tripleSet( "x y z" );
        assertEquals( expect, g.find( triple( "?? y z" ) ).toSet() );
        assertEquals( expect, g.find( triple( "x ?? z" ) ).toSet() );
        assertEquals( expect, g.find( triple( "x y ??" ) ).toSet() );
    }


    public void testContainsConcrete()
    {
        Graph g = getGraphWith( "s P o; _x _R _y; x S 0" );

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        {
            Node chaten = node( "'chat'en" ), chatEN = node( "'chat'EN" );
            assertDiffer( chaten, chatEN );
            assertTrue( chaten.sameValueAs( chatEN ) );
            assertEquals( chaten.getIndexingValue(), chatEN.getIndexingValue() );
            assertEquals( 1, m.find( Node.ANY, Node.ANY, chaten ).toList().size() );
            assertEquals( 1, m.find( Node.ANY, Node.ANY, chatEN ).toList().size() );
        }
    }


    public void testMatchBothLanguagedLiteralsCaseInsensitive()

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            Node chaten = node( "'chat'en" ), chatEN = node( "'chat'EN" );
            assertDiffer( chaten, chatEN );
            assertTrue( chaten.sameValueAs( chatEN ) );
            assertEquals( chaten.getIndexingValue(), chatEN.getIndexingValue() );
            assertEquals( 1, m.find( Node.ANY, Node.ANY, chaten ).toList().size() );
            assertEquals( 1, m.find( Node.ANY, Node.ANY, chatEN ).toList().size() );
        }
    }


    public void testMatchBothLanguagedLiteralsCaseInsensitive()
    {

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        {
            Node chaten = node( "'chat'en" ), chatEN = node( "'chat'EN" );
            assertDiffer( chaten, chatEN );
            assertTrue( chaten.sameValueAs( chatEN ) );
            assertEquals( chaten.getIndexingValue(), chatEN.getIndexingValue() );
            assertEquals( 2, m.find( Node.ANY, Node.ANY, chaten ).toList().size() );
            assertEquals( 2, m.find( Node.ANY, Node.ANY, chatEN ).toList().size() );
        }
    }


    public void testNoMatchAgainstUnlanguagesLiteral()

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            Node chaten = node( "'chat'en" ), chatEN = node( "'chat'EN" );
            assertDiffer( chaten, chatEN );
            assertTrue( chaten.sameValueAs( chatEN ) );
            assertEquals( chaten.getIndexingValue(), chatEN.getIndexingValue() );
            assertEquals( 2, m.find( Node.ANY, Node.ANY, chaten ).toList().size() );
            assertEquals( 2, m.find( Node.ANY, Node.ANY, chatEN ).toList().size() );
        }
    }


    public void testNoMatchAgainstUnlanguagesLiteral()
    {

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        {
            Node chaten = node( "'chat'en" ), chatEN = node( "'chat'EN" );
            assertDiffer( chaten, chatEN );
            assertTrue( chaten.sameValueAs( chatEN ) );
            assertEquals( chaten.getIndexingValue(), chatEN.getIndexingValue() );
            assertEquals( 1, m.find( Node.ANY, Node.ANY, chaten ).toList().size() );
            assertEquals( 1, m.find( Node.ANY, Node.ANY, chatEN ).toList().size() );        
        }
    }


    /**

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            Node chaten = node( "'chat'en" ), chatEN = node( "'chat'EN" );
            assertDiffer( chaten, chatEN );
            assertTrue( chaten.sameValueAs( chatEN ) );
            assertEquals( chaten.getIndexingValue(), chatEN.getIndexingValue() );
            assertEquals( 1, m.find( Node.ANY, Node.ANY, chaten ).toList().size() );
            assertEquals( 1, m.find( Node.ANY, Node.ANY, chatEN ).toList().size() );        
        }
    }


    /**
        test  isEmpty - moved from the QueryHandler code.

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        g.delete( triple( "a T b" ) );
        assertEquals( title + ": size after deleting", baseSize + 3, g.size() );
        assertContainsAll( title + ": modified simple graph", g, "p S q; spindizzies lift cities; Diracs communicate instantaneously" );
        assertOmitsAll( title + ": modified simple graph", g, "x R y; a T b" );
        /* */ 
        ClosableIterator<Triple> it = g.find( Node.ANY, node("lift"), Node.ANY );
        assertTrue( title + ": finds some triple(s)", it.hasNext() );
        assertEquals( title + ": finds a 'lift' triple", triple("spindizzies lift cities"), it.next() );
        assertFalse( title + ": finds exactly one triple", it.hasNext() );
        it.close();
    }

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    }


    public void testRemove( String findRemove, String findCheck )
    {
        Graph g = getGraphWith( "S P O" );
        ExtendedIterator<Triple> it = g.find( NodeCreateUtils.createTriple( findRemove ) );
        try 
        {
            it.next(); it.remove(); it.close();
            assertEquals( "remove with " + findRemove + ":", 0, g.size() );
            assertFalse( g.contains( NodeCreateUtils.createTriple( findCheck ) ) );

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