Package com.franz.agraph.repository
Class AGTupleQuery
java.lang.Object
org.eclipse.rdf4j.query.impl.AbstractOperation
org.eclipse.rdf4j.query.impl.AbstractQuery
com.franz.agraph.repository.AGQuery
com.franz.agraph.repository.AGTupleQuery
- All Implemented Interfaces:
org.eclipse.rdf4j.query.Operation
,org.eclipse.rdf4j.query.Query
,org.eclipse.rdf4j.query.TupleQuery
- Direct Known Subclasses:
AGStreamTupleQuery
Implements the Sesame TupleQuery interface for AllegroGraph.
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Nested Class Summary
Nested classes/interfaces inherited from interface org.eclipse.rdf4j.query.Query
org.eclipse.rdf4j.query.Query.QueryType
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Field Summary
Fields inherited from class com.franz.agraph.repository.AGQuery
RDFS_PLUS_PLUS, RESTRICTION, SPARQL_COVERAGE_PLANNER, SPARQL_IDENTITY_PLANNER
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Constructor Summary
ConstructorsConstructorDescriptionAGTupleQuery
(AGRepositoryConnection con, org.eclipse.rdf4j.query.QueryLanguage ql, String queryString, String baseURI) -
Method Summary
Modifier and TypeMethodDescriptionlong
count()
Evaluates the query and returns only the number of results to the client (counting is done on the server, the results are not returned).void
Evaluates the query and saves the results to a file.void
Evaluates the query and saves the results to a file.org.eclipse.rdf4j.query.TupleQueryResult
evaluate()
void
evaluate
(org.eclipse.rdf4j.query.TupleQueryResultHandler handler) stream
(org.eclipse.rdf4j.query.resultio.TupleQueryResultFormat format) Evaluates the query and returns the result as an input stream.Methods inherited from class com.franz.agraph.repository.AGQuery
analyze, download, download, download, download, getBaseURI, getBindingsArray, getEngine, getEntailmentRegime, getFranzOptionPrefixString, getLanguage, getLimit, getName, getOffset, getPlanner, getQueryString, hashCode, isCheckVariables, isLoggingEnabled, isPrepared, setCheckVariables, setEngine, setEntailmentRegime, setIncludeInferred, setLimit, setLoggingEnabled, setOffset, setPlanner, setPrepared, setSaveName, stream, stream, toString
Methods inherited from class org.eclipse.rdf4j.query.impl.AbstractQuery
getMaxQueryTime, setMaxQueryTime
Methods inherited from class org.eclipse.rdf4j.query.impl.AbstractOperation
clearBindings, getBindings, getDataset, getIncludeInferred, getMaxExecutionTime, removeBinding, setBinding, setDataset, setMaxExecutionTime
Methods inherited from interface org.eclipse.rdf4j.query.Operation
clearBindings, getBindings, getDataset, getIncludeInferred, getMaxExecutionTime, removeBinding, setBinding, setDataset, setIncludeInferred, setMaxExecutionTime
Methods inherited from interface org.eclipse.rdf4j.query.Query
explain, getMaxQueryTime, setMaxQueryTime
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Constructor Details
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AGTupleQuery
public AGTupleQuery(AGRepositoryConnection con, org.eclipse.rdf4j.query.QueryLanguage ql, String queryString, String baseURI)
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Method Details
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evaluate
public org.eclipse.rdf4j.query.TupleQueryResult evaluate() throws org.eclipse.rdf4j.query.QueryEvaluationException- Specified by:
evaluate
in interfaceorg.eclipse.rdf4j.query.TupleQuery
- Throws:
org.eclipse.rdf4j.query.QueryEvaluationException
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evaluate
public void evaluate(org.eclipse.rdf4j.query.TupleQueryResultHandler handler) throws org.eclipse.rdf4j.query.QueryEvaluationException, org.eclipse.rdf4j.query.TupleQueryResultHandlerException - Specified by:
evaluate
in interfaceorg.eclipse.rdf4j.query.TupleQuery
- Throws:
org.eclipse.rdf4j.query.QueryEvaluationException
org.eclipse.rdf4j.query.TupleQueryResultHandlerException
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count
public long count() throws org.eclipse.rdf4j.query.QueryEvaluationExceptionEvaluates the query and returns only the number of results to the client (counting is done on the server, the results are not returned).- Returns:
- the number of results
- Throws:
org.eclipse.rdf4j.query.QueryEvaluationException
- if there is an error with this request
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download
public void download(File file, org.eclipse.rdf4j.query.resultio.TupleQueryResultFormat format) throws org.eclipse.rdf4j.query.QueryEvaluationException Evaluates the query and saves the results to a file.- Parameters:
file
- Output path.format
- Output format.- Throws:
org.eclipse.rdf4j.query.QueryEvaluationException
- if there is an error while evaluating query
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download
public void download(String file, org.eclipse.rdf4j.query.resultio.TupleQueryResultFormat format) throws org.eclipse.rdf4j.query.QueryEvaluationException Evaluates the query and saves the results to a file.- Parameters:
file
- Output path.format
- Output format.- Throws:
org.eclipse.rdf4j.query.QueryEvaluationException
- if there is an error while evaluating query
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stream
public InputStream stream(org.eclipse.rdf4j.query.resultio.TupleQueryResultFormat format) throws org.eclipse.rdf4j.query.QueryEvaluationException Evaluates the query and returns the result as an input stream.Note that it is important to close the returned stream, to avoid resource leaks.
- Parameters:
format
- Output format.- Returns:
- An input stream containing response data. The caller MUST close this stream to release connection resources.
- Throws:
org.eclipse.rdf4j.query.QueryEvaluationException
- if there is an error while evaluating query
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