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463 changes: 456 additions & 7 deletions
463
core/model-vocabulary/src/main/java/org/eclipse/rdf4j/model/vocabulary/GEO.java
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54 changes: 54 additions & 0 deletions
54
...federation/src/main/java/org/eclipse/rdf4j/federated/algebra/FedXArbitraryLengthPath.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,54 @@ | ||
| /******************************************************************************* | ||
| * Copyright (c) 2024 Eclipse RDF4J contributors. | ||
| * | ||
| * All rights reserved. This program and the accompanying materials | ||
| * are made available under the terms of the Eclipse Distribution License v1.0 | ||
| * which accompanies this distribution, and is available at | ||
| * http://www.eclipse.org/org/documents/edl-v10.php. | ||
| * | ||
| * SPDX-License-Identifier: BSD-3-Clause | ||
| *******************************************************************************/ | ||
| package org.eclipse.rdf4j.federated.algebra; | ||
|
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| import java.util.List; | ||
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| import org.eclipse.rdf4j.federated.structures.QueryInfo; | ||
| import org.eclipse.rdf4j.federated.util.QueryAlgebraUtil; | ||
| import org.eclipse.rdf4j.query.algebra.ArbitraryLengthPath; | ||
| import org.eclipse.rdf4j.query.algebra.Var; | ||
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| /** | ||
| * A specialization of {@link ArbitraryLengthPath} to maintain the {@link QueryInfo} | ||
| * | ||
| * @author Andreas Schwarte | ||
| */ | ||
| public class FedXArbitraryLengthPath extends ArbitraryLengthPath implements FedXTupleExpr { | ||
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| private static final long serialVersionUID = -7512248084095130084L; | ||
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| private final QueryInfo queryInfo; | ||
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| public FedXArbitraryLengthPath(ArbitraryLengthPath path, QueryInfo queryInfo) { | ||
| super(path.getScope(), clone(path.getSubjectVar()), path.getPathExpression(), clone(path.getObjectVar()), | ||
| clone(path.getContextVar()), path.getMinLength()); | ||
| this.queryInfo = queryInfo; | ||
| } | ||
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| private static Var clone(Var var) { | ||
| if (var == null) { | ||
| return null; | ||
| } | ||
| return var.clone(); | ||
| } | ||
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| @Override | ||
| public List<String> getFreeVars() { | ||
| return List.copyOf(QueryAlgebraUtil.getFreeVars(getPathExpression())); | ||
| } | ||
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| @Override | ||
| public QueryInfo getQueryInfo() { | ||
| return queryInfo; | ||
| } | ||
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| } |
49 changes: 49 additions & 0 deletions
49
tools/federation/src/main/java/org/eclipse/rdf4j/federated/algebra/FedXZeroLengthPath.java
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| @@ -0,0 +1,49 @@ | ||
| /******************************************************************************* | ||
| * Copyright (c) 2024 Eclipse RDF4J contributors. | ||
| * | ||
| * All rights reserved. This program and the accompanying materials | ||
| * are made available under the terms of the Eclipse Distribution License v1.0 | ||
| * which accompanies this distribution, and is available at | ||
| * http://www.eclipse.org/org/documents/edl-v10.php. | ||
| * | ||
| * SPDX-License-Identifier: BSD-3-Clause | ||
| *******************************************************************************/ | ||
| package org.eclipse.rdf4j.federated.algebra; | ||
|
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| import java.util.List; | ||
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| import org.eclipse.rdf4j.federated.structures.QueryInfo; | ||
| import org.eclipse.rdf4j.query.algebra.StatementPattern.Scope; | ||
| import org.eclipse.rdf4j.query.algebra.Var; | ||
| import org.eclipse.rdf4j.query.algebra.ZeroLengthPath; | ||
|
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| /** | ||
| * A specialization of {@link ZeroLengthPath} that keeps track of {@link QueryInfo} and statement sources. | ||
| * | ||
| * @author Andreas Schwarte | ||
| */ | ||
| public class FedXZeroLengthPath extends ZeroLengthPath implements QueryRef { | ||
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| private static final long serialVersionUID = 2241037911187178861L; | ||
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| private final QueryInfo queryInfo; | ||
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| private final List<StatementSource> statementSources; | ||
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| public FedXZeroLengthPath(Scope scope, Var subjVar, Var objVar, Var conVar, QueryInfo queryInfo, | ||
| List<StatementSource> statementSources) { | ||
| super(scope, subjVar, objVar, conVar); | ||
| this.queryInfo = queryInfo; | ||
| this.statementSources = statementSources; | ||
| } | ||
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| public List<StatementSource> getStatementSources() { | ||
| return statementSources; | ||
| } | ||
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| @Override | ||
| public QueryInfo getQueryInfo() { | ||
| return queryInfo; | ||
| } | ||
|
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| } |
52 changes: 52 additions & 0 deletions
52
tools/federation/src/main/java/org/eclipse/rdf4j/federated/algebra/HolderNode.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,52 @@ | ||
| /******************************************************************************* | ||
| * Copyright (c) 2024 Eclipse RDF4J contributors. | ||
| * | ||
| * All rights reserved. This program and the accompanying materials | ||
| * are made available under the terms of the Eclipse Distribution License v1.0 | ||
| * which accompanies this distribution, and is available at | ||
| * http://www.eclipse.org/org/documents/edl-v10.php. | ||
| * | ||
| * SPDX-License-Identifier: BSD-3-Clause | ||
| *******************************************************************************/ | ||
| package org.eclipse.rdf4j.federated.algebra; | ||
|
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| import org.eclipse.rdf4j.query.algebra.AbstractQueryModelNode; | ||
| import org.eclipse.rdf4j.query.algebra.QueryModelNode; | ||
| import org.eclipse.rdf4j.query.algebra.QueryModelVisitor; | ||
|
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| /** | ||
| * An artificial holder node serving as parent holder to allow replacement. | ||
| */ | ||
| public class HolderNode extends AbstractQueryModelNode { | ||
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| private static final long serialVersionUID = -4689963986499825771L; | ||
| private QueryModelNode child; | ||
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| public HolderNode(QueryModelNode child) { | ||
| super(); | ||
| setChild(child); | ||
| } | ||
|
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| public void setChild(QueryModelNode child) { | ||
| this.child = child; | ||
| this.child.setParentNode(this); | ||
| } | ||
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| @Override | ||
| public <X extends Exception> void visitChildren(QueryModelVisitor<X> visitor) throws X { | ||
| child.visit(visitor); | ||
| } | ||
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| @Override | ||
| public <X extends Exception> void visit(QueryModelVisitor<X> visitor) throws X { | ||
| visitor.meetOther(this); | ||
| } | ||
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| @Override | ||
| public void replaceChildNode(QueryModelNode current, QueryModelNode replacement) { | ||
| if (child.equals(current)) { | ||
| setChild(replacement); | ||
|
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| } | ||
| } | ||
| } |
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