- All Known Implementing Classes:
NTripleReader
,RDFXMLReader
,RDFXMLReader0
public interface RDFReaderI
An
RDFReader
reads a serialized representation of RDF,
e.g. RDF/XML or N-Triples and adds the statements to a model.
Legacy
Reading RDF is usually done via:
- RDFDataMgr
- RDFParser
- Model.read
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Method Summary
Modifier and TypeMethodDescriptionvoid
read
(Model model, InputStream r, String base) Read serialized RDF from anInputStream
and add the statements to aModel
.void
It is usually a mistake to use this method.void
Read serialized RDF from a url and add the statements to a model.setErrorHandler
(RDFErrorHandler errHandler) Set an error handler for the readersetProperty
(String propName, Object propValue) Set the value of a reader property.
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Method Details
-
read
It is usually a mistake to use this method. Read serialized RDF from aReader
and add the statements to aModel
. It is generally better to use an InputStream if possible.read(Model,InputStream,String)
, otherwise there is a danger of a mismatch between the character encoding of say the FileReader and the character encoding of the data in the file.- Parameters:
model
- The model to which statements are added.r
- the reader from which to readbase
- The base to use when converting relative to absolute URI's. The base URI may be null if there are no relative URIs to convert. A base URI of "" may permit relative URIs to be used in the model unconverted.
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read
Read serialized RDF from anInputStream
and add the statements to aModel
.- Parameters:
model
- The model to which statements are added.r
- The InputStream from which to readbase
- The base to use when converting relative to absolute URI's. The base URI may be null if there are no relative URIs to convert. A base URI of "" may permit relative URIs to be used in the model unconverted.
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read
Read serialized RDF from a url and add the statements to a model.- Parameters:
model
- the model to which statements should be addedurl
- the url, as a string, from which the serialized RDF should be read.
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setProperty
Set the value of a reader property.The behaviour of a reader may be influenced by setting property values. The properties and there effects may depend on the individual reader implementation.
An RDFReader's behaviour can be influenced by defining property values interpreted by that particular reader class. The values for such properties can be changed by calling this method.
No standard properties are defined. For the properties recognised by any particular reader implementation, see the documentation for that implementation.
The built-in RDFReaders have properties as defined by:
- N-TRIPLE
- No properties.
- RDF/XML
- RDF/XML-ABBREV
- See
RDFXMLReader.setProperty(String,Object)
- Parameters:
propName
- the name of the propertypropValue
- the value of the property- Returns:
- the previous value of the property, or
null
if there wasn't one
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setErrorHandler
Set an error handler for the reader- Parameters:
errHandler
- the new error handler- Returns:
- the previous error handler
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