Class PrefixDeclProcessor
- java.lang.Object
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- org.eclipse.rdf4j.query.parser.sparql.PrefixDeclProcessor
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@InternalUseOnly public class PrefixDeclProcessor extends Object
Processes the prefix declarations in a SPARQL query model.- Author:
- Arjohn Kampman
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Constructor Summary
Constructors Constructor Description PrefixDeclProcessor()
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static Map<String,String>
process(org.eclipse.rdf4j.query.parser.sparql.ast.ASTOperationContainer qc)
Processes prefix declarations in queries.
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Method Detail
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process
public static Map<String,String> process(org.eclipse.rdf4j.query.parser.sparql.ast.ASTOperationContainer qc) throws MalformedQueryException
Processes prefix declarations in queries. This method collects all prefixes that are declared in the supplied query, verifies that prefixes are not redefined and replaces anyASTQName
nodes in the query with equivalentASTIRI
nodes.- Parameters:
qc
- The query that needs to be processed.- Returns:
- A map containing the prefixes that are declared in the query (key) and the namespace they map to (value).
- Throws:
MalformedQueryException
- If the query contains redefined prefixes or qnames that use undefined prefixes.
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