Github user ajs6f commented on a diff in the pull request: https://github.com/apache/jena/pull/314#discussion_r153815022 --- Diff: jena-arq/src/main/java/org/apache/jena/sparql/core/assembler/InMemDatasetAssembler.java --- @@ -20,54 +20,45 @@ import static org.apache.jena.assembler.JA.data; import static org.apache.jena.query.DatasetFactory.createTxnMem; -import static org.apache.jena.query.ReadWrite.WRITE; import static org.apache.jena.riot.RDFDataMgr.read; import static org.apache.jena.sparql.core.assembler.AssemblerUtils.setContext; -import static org.apache.jena.sparql.core.assembler.DatasetAssemblerVocab.pGraphName; -import static org.apache.jena.sparql.core.assembler.DatasetAssemblerVocab.pNamedGraph; -import static org.apache.jena.sparql.util.graph.GraphUtils.getAsStringValue; -import static org.apache.jena.sparql.util.graph.GraphUtils.multiValueResource; +import static org.apache.jena.sparql.core.assembler.DatasetAssemblerVocab.*; +import static org.apache.jena.sparql.util.graph.GraphUtils.*; import org.apache.jena.assembler.Assembler; import org.apache.jena.assembler.Mode; -import org.apache.jena.assembler.assemblers.AssemblerBase; import org.apache.jena.query.Dataset; import org.apache.jena.rdf.model.Resource; +import org.apache.jena.system.Txn; /** * An {@link Assembler} that creates in-memory {@link Dataset}s. */ -public class InMemDatasetAssembler extends AssemblerBase implements Assembler { +public class InMemDatasetAssembler extends DatasetAssembler { public static Resource getType() { - return DatasetAssemblerVocab.tDatasetTxnMem ; + return DatasetAssemblerVocab.tMemoryDataset ; } @Override public Dataset open(final Assembler assembler, final Resource root, final Mode mode) { - checkType(root, DatasetAssemblerVocab.tDatasetTxnMem); --- End diff -- One of my frustrations with this is that there were no tests of these assemblers at all when I started, so I'm not very sure about the current expected/guaranteed behavior. WRT to our comments above about the use of predicates, should we start migrating people away from `ja:graph`, or (probably better) instead restricting `ja:data` to _only_ loading quads into a dataset?
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