igraph.core
Abstractions over a graph object, intended to sit alongside the other basic clojure data structures such as maps and sequences.
Abstractions over a graph object, intended to sit alongside the other basic clojure data structures such as maps and sequences.
IGraphcljprotocol
An abstraction for S-P-O graphs
An abstraction for S-P-O graphs
subjectsclj
(subjects g)Returns (<s>...) for <g> Where <s> is a subject in one or more triples in <g> <g> is a graph.
Returns (<s>...) for <g> Where <s> is a subject in one or more triples in <g> <g> is a graph.
queryclj
(query g q)Returns #{<binding> ...} for query <q> applied to <g> Where <g> is a graph <query> is a query in a format suitable for querying <g> <binding> := {<var> <value>, ...} <var> is a variable specified in <q> <value> is a value found in <g> bounded to <var> per <q>
Returns #{<binding> ...} for query <q> applied to <g>
Where
<g> is a graph
<query> is a query in a format suitable for querying <g>
<binding> := {<var> <value>, ...}
<var> is a variable specified in <q>
<value> is a value found in <g> bounded to <var> per <q>subtractclj
(subtract g to-subtract)Returns <g> with <to-subtract> removed from its contents. Throws an exception if (read-only? <g>) Where <g> is a graph <to-subtract> is in some format interpretable as a set of triples.
Returns <g> with <to-subtract> removed from its contents. Throws an exception if (read-only? <g>) Where <g> is a graph <to-subtract> is in some format interpretable as a set of triples.
addclj
(add g to-add)Returns <g>, with <to-add> added to its contents. Throws an exception if (read-only? <g>) Where <g> is a graph <to-add> is in some format interpretable as a set of triples.
Returns <g>, with <to-add> added to its contents. Throws an exception if (read-only? <g>) Where <g> is a graph <to-add> is in some format interpretable as a set of triples.
get-oclj
(get-o g s p)Returns {<o> ...} for <s> and <p> in <g>, or nil. Where <g> is a graph <s> is subject of some triples in <g>
<p> is predicate of some triples in <g> <o> appears in triple [<s> <p> <o>] in <g>
Returns {<o> ...} for <s> and <p> in <g>, or nil.
Where
<g> is a graph
<s> is subject of some triples in <g>
<p> is predicate of some triples in <g>
<o> appears in triple [<s> <p> <o>] in <g>askclj
(ask g s p o)Returns truthy value iff [<s> <p> <o>] appears in <g> Where <g> is a graph <s> is subject of some triples in <g>
<p> is predicate of some triples in <g> <o> appears in triple [<s> <p> <o>] in <g>
Returns truthy value iff [<s> <p> <o>] appears in <g> Where <g> is a graph <s> is subject of some triples in <g> <p> is predicate of some triples in <g> <o> appears in triple [<s> <p> <o>] in <g>
get-p-oclj
(get-p-o g s)Returns {<p> #{<o> ...}} associated with <s> in <g>, or nil. Where <g> is a graph <s> is subject
<p> and <o> are in triples := [<s> <p> <o>] in <g>
Returns {<p> #{<o> ...}} associated with <s> in <g>, or nil.
Where
<g> is a graph
<s> is subject
<p> and <o> are in triples := [<s> <p> <o>] in <g>normal-formclj
(normal-form g)Returns {<s> {<p> #{<o>...}...}...} Where <s> is the subject of a triple := [<s> <p> <o>] in <g>
<p> is predicate of same <o> is the object of same
Returns {<s> {<p> #{<o>...}...}...}
Where
<s> is the subject of a triple := [<s> <p> <o>] in <g>
<p> is predicate of same
<o> is the object of sameread-only?clj
(read-only? g)Returns true if the membership of <g> is static and add/subtract functions will throw an exception. This may hold for example when <g> is a public endpoint for which write permission is denied
Returns true if the membership of <g> is static and add/subtract functions will throw an exception. This may hold for example when <g> is a public endpoint for which write permission is denied
invokeclj
(invoke g)(invoke g s)(invoke g s p)(invoke g s p o)Applies <g> as a function to the rest of its arguments, representing triples [<s> <p> <o>] in <g> respectively. (g) -> {<s> {<p> #{<o>...}...}...} ;; = (normal-form <g>) (g s) -> {<p> #{<o>...}, ...} ;; = (get-p-o <g>) (g s p) -> #{<o> ...} ;; = (get-o <g>) (g s p o) -> <o> iff [<s> <p> <o>] is in <g> ;; = (ask <g> <s> <p> <o>)
Applies <g> as a function to the rest of its arguments, representing
triples [<s> <p> <o>] in <g> respectively.
(g) -> {<s> {<p> #{<o>...}...}...} ;; = (normal-form <g>)
(g s) -> {<p> #{<o>...}, ...} ;; = (get-p-o <g>)
(g s p) -> #{<o> ...} ;; = (get-o <g>)
(g s p o) -> <o> iff [<s> <p> <o>] is in <g> ;; = (ask <g> <s> <p> <o>)ISetcljprotocol
Basic set operations between graphs.
Basic set operations between graphs.
differenceclj
(difference g1 g2)Returns an IGraph whose normal form contains all statements in g1 not present in g2.
Returns an IGraph whose normal form contains all statements in g1 not present in g2.
intersectionclj
(intersection g1 g2)Returns an IGraph whose normal form contains all and only statements shared by both g1 and g2
Returns an IGraph whose normal form contains all and only statements shared by both g1 and g2
unionclj
(union g1 g2)Returns an IGraph whose normal form contains all triples from g1 and g2
Returns an IGraph whose normal form contains all triples from g1 and g2
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