Graph class
Properties
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contexts
↔ Map<String, String>
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The set to store prefixed namespaces
getter/setter pair
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ctx
↔ Map<String, URIRef>
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The set to store all prefixed namespaces.
getter/setter pair
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graphs
↔ Map<URIRef, Set<Triple>>
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The set to store different groups of triples
getter/setter pair
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groups
↔ Map<URIRef, Map<URIRef, Set>>
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The set to store different groups of triples in the form of
{sub1: {pre1: {obj1}, pre2, {obj2, obj2_1}}, sub2: {pre3: {obj3, obj3_1}, ...}, ...}
getter/setter pair
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hashCode
→ int
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The hash code for this object.
no setterinherited
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parser
→ Parser
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The grammar parser to extract file content to a list.
final
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runtimeType
→ Type
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A representation of the runtime type of the object.
no setterinherited
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serializedString
↔ String
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The string for storing serialized string after parsing.
getter/setter pair
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triples
↔ Set
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The set to store all triples in the graph.
getter/setter pair
Methods
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add(Triple triple)
→ void
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Adds triple to the set, also update the graph to include the triple.
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addNamedIndividual(URIRef sub)
→ bool
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Adds named individual to the graph:
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addNamedIndividualToGroups(dynamic s)
→ bool
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Adds named individual to graph:
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addObjectProperty(URIRef obj, URIRef relation, URIRef prop)
→ void
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Adds object property to link two triple subjects together.
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addPrefixToCtx(String prefixName, URIRef uriRef)
→ void
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Adds a prefix to context using its string forms
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addPropertyToGroups(dynamic s, dynamic uriRefBase)
→ bool
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Adds property to graph:
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addTripleToGroups(dynamic s, dynamic p, dynamic o)
→ void
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Adds a triple to group using its string forms.
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bind(String name, Namespace ns)
→ void
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Binds a namespace to a prefix for better readability when serializing.
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item(String s)
→ dynamic
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Converts a string to its corresponding URIRef, or Literal form.
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noSuchMethod(Invocation invocation)
→ dynamic
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Invoked when a nonexistent method or property is accessed.
inherited
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objects(URIRef sub, URIRef pre)
→ Set
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Finds all objects which have a certain subject and predicate.
-
parse(String filePath)
→ dynamic
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Parses file and update graph accordingly.
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parseText(String text)
→ dynamic
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Parses whole text and update graph accordingly.
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parseTurtle(String fileContent)
→ void
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Parses a valid turtle file read into a string
fileContent.
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serialize({String format = 'ttl', String? dest, String? abbr})
→ void
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Serializes the graph to certain format and export to file.
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subjects(URIRef pre, dynamic obj)
→ Set<URIRef>
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Finds all subjects which have a certain predicate and object.
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toString()
→ String
-
A string representation of this object.
inherited
