Java TupleExpr.clone方法代码示例

本文整理汇总了Java中org.openrdf.query.algebra.TupleExpr.clone方法的典型用法代码示例。如果您正苦于以下问题：Java TupleExpr.clone方法的具体用法？Java TupleExpr.clone怎么用？Java TupleExpr.clone使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.openrdf.query.algebra.TupleExpr的用法示例。

在下文中一共展示了TupleExpr.clone方法的12个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: getPlans

import org.openrdf.query.algebra.TupleExpr; //导入方法依赖的package包/类
private static List<TupleExpr> getPlans(List<Map<Join, List<TupleExpr>>> reOrderings, TupleExpr te) {

        List<TupleExpr> queryPlans = Lists.newArrayList();
        PermInserter pm = new PermInserter();

        for (Map<Join, List<TupleExpr>> order : reOrderings) {
            TupleExpr clone = te.clone();
            pm.setReOrderMap(order);
            clone.visit(pm);
            queryPlans.add(clone);
        }

        return queryPlans;
    }

开发者ID:apache，项目名称:incubator-rya，代码行数:15，代码来源:TupleReArranger.java

示例2: testJoinMatcherRejectsLeftJoinPcj

import org.openrdf.query.algebra.TupleExpr; //导入方法依赖的package包/类
@Test
public void testJoinMatcherRejectsLeftJoinPcj() throws Exception {

    final String query1 = ""//
            + "SELECT ?e ?c ?l" //
            + "{" //
            + "  ?e a ?c . "//
            + "  ?e <uri:talksTo> ?l . "//
            + "  ?e <http://www.w3.org/2000/01/rdf-schema#label> ?l "//
            + "}";//

    final String query2 = ""//
            + "SELECT ?a ?b ?m" //
            + "{" //
            + "  ?a a ?b . "//
            + "  ?a <uri:talksTo> ?m . "//
            + "  OPTIONAL {?a <http://www.w3.org/2000/01/rdf-schema#label> ?m}  . "//
            + "}";//

    final SPARQLParser parser = new SPARQLParser();
    final ParsedQuery pq1 = parser.parseQuery(query1, null);
    final ParsedQuery pq2 = parser.parseQuery(query2, null);
    final TupleExpr te1 = pq1.getTupleExpr();
    final TupleExpr te2 = pq2.getTupleExpr();
    final TupleExpr expected = te1.clone();

    final SimpleExternalTupleSet pcj = new SimpleExternalTupleSet((Projection) te2);
    final List<ExternalTupleSet> externalList = new ArrayList<>();
    externalList.add(pcj);

    provider.setIndices(externalList);
    final PCJOptimizer optimizer = new PCJOptimizer(externalList, false, provider);
    optimizer.optimize(te1, null, null);
    Assert.assertEquals(expected, te1);

}

开发者ID:apache，项目名称:incubator-rya，代码行数:37，代码来源:PCJOptimizerTest.java

示例3: evaluateInternal

import org.openrdf.query.algebra.TupleExpr; //导入方法依赖的package包/类
/**
	 * Evaluates the supplied QueryModel on the federation members.
	 * 
	 * @param query
	 *            The query to evaluate.
	 * @param bindings
	 *            A set of input parameters for the query evaluation. The keys
	 *            reference variable names that should be bound to the value
	 *            they map to.
	 * @param includeInferred
	 *            Indicates whether inferred triples are to be considered in the
	 *            query result. If false, no inferred statements are returned;
	 *            if true, inferred statements are returned if available
	 * @return The result Cursor.
	 * @throws StoreException
	 *             If the Sail encountered an error or invalid internal state.
	 */
	@Override
	public CloseableIteration<? extends BindingSet, QueryEvaluationException> evaluateInternal(TupleExpr query, Dataset dataset,
			BindingSet bindings, boolean includeInferred) throws SailException {	// Sesame 2:
		
		QueryOptimizerList optimizerList = new QueryOptimizerList();
		
		LOGGER.trace("Incoming query model:\n{}", OperatorTreePrinter.print(query));
		
		// Clone the tuple expression to allow for more aggressive optimizations
		query = query.clone();

		optimizerList.add(new BindingAssigner());
		optimizerList.add(new CompareOptimizer());
		optimizerList.add(new ConjunctiveConstraintSplitter());
		optimizerList.add(new DisjunctiveConstraintOptimizer());
		optimizerList.add(new SameTermFilterOptimizer());
//		optimizerList.add(new FilterOptimizer());
//		optimizerList.add(new QueryModelPruner());
		optimizerList.add(this.optimizer);

		optimizerList.optimize(query, dataset, bindings);
		
		if (LOGGER.isTraceEnabled())
			LOGGER.trace("Optimized query model:\n{}", OperatorTreePrinter.print(query));
		
		try {
			return strategy.evaluate(query, EmptyBindingSet.getInstance());
		} catch (QueryEvaluationException e) {
			throw new SailException("query evaluation failed", e);
		}
	}

开发者ID:goerlitz，项目名称:rdffederator，代码行数:49，代码来源:FederationSailConnection.java

示例4: process

import org.openrdf.query.algebra.TupleExpr; //导入方法依赖的package包/类
/**
 * Iterates through list of normalized indexes and replaces all subtrees of query which match index with index.
 *
 * @param query
 * @return TupleExpr
 */
public static TupleExpr process(TupleExpr query, List<ExternalTupleSet> indexSet) {

    boolean indexPlaced = false;
    TupleExpr rtn = query.clone();
    QueryNodeCount qnc = new QueryNodeCount();
    rtn.visit(qnc);

    if(qnc.getNodeCount()/2 < indexSet.size()) {
        return null;
    }


    //move BindingSetAssignment Nodes out of the way
    organizeBSAs(rtn);


    // test to see if query contains no other nodes
    // than filter, join, projection, and statement pattern and
    // test whether query contains duplicate StatementPatterns and filters
    if (isTupleValid(rtn)) {

        for (ExternalTupleSet index : indexSet) {

            // test to see if index contains at least one StatementPattern,
            // that StatementPatterns are unique,
            // and that all variables found in filters occur in some
            // StatementPattern
            if (isTupleValid(index.getTupleExpr())) {

                ExternalTupleSet eTup = (ExternalTupleSet) index.clone();
                SPBubbleDownVisitor indexVistor = new SPBubbleDownVisitor(eTup);
                rtn.visit(indexVistor);
                FilterBubbleManager fbmv = new FilterBubbleManager(eTup);
                rtn.visit(fbmv);
                SubsetEqualsVisitor subIndexVis = new SubsetEqualsVisitor(eTup, rtn);
                rtn.visit(subIndexVis);
                indexPlaced = subIndexVis.indexPlaced();
                if(!indexPlaced) {
                    break;
                }

            }

        }
        if(indexPlaced) {
            return rtn;
        } else {
            return null;
        }

    } else {
        throw new IllegalArgumentException("Invalid Query.");
    }
}

开发者ID:apache，项目名称:incubator-rya，代码行数:61，代码来源:GeneralizedExternalProcessor.java

示例5: testBasicSegment

import org.openrdf.query.algebra.TupleExpr; //导入方法依赖的package包/类
@Test
public void testBasicSegment() throws Exception {

    final String query1 = ""//
            + "SELECT ?e ?c ?l" //
            + "{" //
            + "  ?e a ?c . "//
            + "  OPTIONAL {?e <uri:talksTo> ?l}  . "//
            + "  ?e <http://www.w3.org/2000/01/rdf-schema#label> ?l "//
            + "}";//

    final String query2 = ""//
            + "SELECT ?a ?b ?m" //
            + "{" //
            + "  ?a a ?b . "//
            + "  OPTIONAL {?a <uri:talksTo> ?m}  . "//
            + "}";//

    final SPARQLParser parser = new SPARQLParser();
    final ParsedQuery pq1 = parser.parseQuery(query1, null);
    final ParsedQuery pq2 = parser.parseQuery(query2, null);
    final TupleExpr te1 = pq1.getTupleExpr();
    final TupleExpr te2 = pq2.getTupleExpr();

    final TupleExpr unOpt = te1.clone();
    final List<QueryModelNode> remainingNodes = getNodes(te1);
    final Set<QueryModelNode> unMatchedNodes = new HashSet<>();
    unMatchedNodes.add(remainingNodes.get(2));

    final SimpleExternalTupleSet pcj = new SimpleExternalTupleSet((Projection) te2);
    final List<ExternalTupleSet> externalList = new ArrayList<>();
    externalList.add(pcj);

    provider.setIndices(externalList);
    final PCJOptimizer optimizer = new PCJOptimizer(externalList, false, provider);
    optimizer.optimize(te1, null, null);

    Assert.assertEquals(true, validatePcj(te1, unOpt, externalList, unMatchedNodes));


}

开发者ID:apache，项目名称:incubator-rya，代码行数:42，代码来源:PCJOptimizerTest.java

示例6: testSegmentWithUnion

import org.openrdf.query.algebra.TupleExpr; //导入方法依赖的package包/类
@Test
public void testSegmentWithUnion() throws Exception {

    final String query1 = ""//
            + "SELECT ?e ?c ?l" //
            + "{" //
            + " {?e <uri:p1> <uri:o1>. } UNION { ?e a ?c. OPTIONAL {?e <uri:talksTo> ?l}. ?e <uri:p5> <uri:o4>. ?e <uri:p4> <uri:o3> }  . "//
            + "  ?e <uri:p2> ?c . "//
            + "  ?e <uri:p3> <uri:o2>  . "//
            + "}";//

    final String query2 = ""//
            + "SELECT ?a ?b ?m" //
            + "{" //
            + " ?a <uri:p5> <uri:o4> ." //
            + " ?a <uri:p4> <uri:o3> ." //
            + "  OPTIONAL {?a <uri:talksTo> ?m} . "//
            + "  ?a a ?b . "//
            + "}";//

    final String query3 = ""//
            + "SELECT ?h ?i" //
            + "{" //
            + "  ?h <uri:p2> ?i . "//
            + "  ?h <uri:p3> <uri:o2>  . "//
            + "}";//

    final SPARQLParser parser = new SPARQLParser();
    final ParsedQuery pq1 = parser.parseQuery(query1, null);
    final ParsedQuery pq2 = parser.parseQuery(query2, null);
    final ParsedQuery pq3 = parser.parseQuery(query3, null);
    final TupleExpr te1 = pq1.getTupleExpr();
    final TupleExpr te2 = pq2.getTupleExpr();
    final TupleExpr te3 = pq3.getTupleExpr();

    final TupleExpr unOpt = te1.clone();
    final List<QueryModelNode> remainingNodes = getNodes(te1);
    final Set<QueryModelNode> unMatchedNodes = new HashSet<>();
    unMatchedNodes.add(remainingNodes.get(0));

    final SimpleExternalTupleSet pcj1 = new SimpleExternalTupleSet((Projection) te2);
    final SimpleExternalTupleSet pcj2 = new SimpleExternalTupleSet((Projection) te3);
    final List<ExternalTupleSet> externalList = new ArrayList<>();
    externalList.add(pcj1);
    externalList.add(pcj2);

    provider.setIndices(externalList);
    final PCJOptimizer optimizer = new PCJOptimizer(externalList, false, provider);
    optimizer.optimize(te1, null, null);

    Assert.assertEquals(true, validatePcj(te1, unOpt, externalList, unMatchedNodes));



}

开发者ID:apache，项目名称:incubator-rya，代码行数:56，代码来源:PCJOptimizerTest.java

示例7: testExactMatchLargeReOrdered

import org.openrdf.query.algebra.TupleExpr; //导入方法依赖的package包/类
@Test
public void testExactMatchLargeReOrdered() throws Exception {


    final String query1 = ""//
            + "SELECT ?a ?b ?c ?d ?e ?f ?g ?h" //
            + "{" //
            + "  ?a <uri:p0> ?b ." //
            + "  OPTIONAL{?b <uri:p2> ?c. ?c <uri:p1> ?d} . " //
            + "  OPTIONAL{?b <uri:p3> ?e. ?e <uri:p1> ?f} . "//
            + "  OPTIONAL{?b <uri:p4> ?g. ?g <uri:p1> ?h} . "//
            + "  OPTIONAL{?b <uri:p4> ?i. ?i <uri:p1> ?j} . "//
            + "  OPTIONAL{?b <uri:p4> ?k. ?k <uri:p1> ?l} . "//
            + "  OPTIONAL{?b <uri:p4> ?m. ?m <uri:p1> ?n} . "//
            + "  OPTIONAL{?b <uri:p4> ?o. ?o <uri:p1> ?p} . "//
            + "}";//

    final String query2 = ""//
            + "SELECT ?a ?b ?c ?d ?e ?f ?g ?h" //
            + "{" //
            + "  ?a <uri:p0> ?b ." //
            + "  OPTIONAL{?b <uri:p4> ?o. ?o <uri:p1> ?p} . "//
            + "  OPTIONAL{?b <uri:p4> ?g. ?g <uri:p1> ?h} . "//
            + "  OPTIONAL{?b <uri:p2> ?c. ?c <uri:p1> ?d} . " //
            + "  OPTIONAL{?b <uri:p4> ?i. ?i <uri:p1> ?j} . "//
            + "  OPTIONAL{?b <uri:p4> ?m. ?m <uri:p1> ?n} . "//
            + "  OPTIONAL{?b <uri:p4> ?k. ?k <uri:p1> ?l} . "//
            + "  OPTIONAL{?b <uri:p3> ?e. ?e <uri:p1> ?f} . "//
            + "}";//

    final SPARQLParser parser = new SPARQLParser();
    final ParsedQuery pq1 = parser.parseQuery(query1, null);
    final ParsedQuery pq2 = parser.parseQuery(query2, null);
    final TupleExpr te1 = pq1.getTupleExpr();
    final TupleExpr te2 = pq2.getTupleExpr();

    final TupleExpr unOpt = te1.clone();

    final SimpleExternalTupleSet pcj = new SimpleExternalTupleSet((Projection) te2);
    final List<ExternalTupleSet> externalList = new ArrayList<>();
    externalList.add(pcj);


    provider.setIndices(externalList);
    final PCJOptimizer optimizer = new PCJOptimizer(externalList, false, provider);
    optimizer.optimize(te1, null, null);

    Assert.assertEquals(true, validatePcj(te1, unOpt, externalList, new HashSet<QueryModelNode>()));
}

开发者ID:apache，项目名称:incubator-rya，代码行数:50，代码来源:PCJOptimizerTest.java

示例8: testSubsetMatchLargeReOrdered

import org.openrdf.query.algebra.TupleExpr; //导入方法依赖的package包/类
@Test
public void testSubsetMatchLargeReOrdered() throws Exception {

    final String query1 = ""//
            + "SELECT ?a ?b ?c ?d ?e ?f ?g ?h" //
            + "{" //
            + "  ?a <uri:p0> ?b ." //
            + "  OPTIONAL{?b <uri:p2> ?c. ?c <uri:p1> ?d} . " //
            + "  OPTIONAL{?b <uri:p3> ?e. ?e <uri:p1> ?f} . "//
            + "  OPTIONAL{?b <uri:p4> ?g. ?g <uri:p1> ?h} . "//
            + "  OPTIONAL{?b <uri:p5> ?i. ?i <uri:p6> ?j} . "//
            + "  OPTIONAL{?b <uri:p5> ?k. ?k <uri:p6> ?l} . "//
            + "  OPTIONAL{?b <uri:p5> ?m. ?m <uri:p6> ?n} . "//
            + "  OPTIONAL{?b <uri:p4> ?o. ?o <uri:p1> ?p} . "//
            + "}";//

    final String query2 = ""//
            + "SELECT ?a ?b ?c ?d ?e ?f ?g ?h" //
            + "{" //
            + "  ?a <uri:p0> ?b ." //
            + "  OPTIONAL{?b <uri:p4> ?o. ?o <uri:p1> ?p} . "//
            + "  OPTIONAL{?b <uri:p4> ?g. ?g <uri:p1> ?h} . "//
            + "  OPTIONAL{?b <uri:p2> ?c. ?c <uri:p1> ?d} . " //
            + "  OPTIONAL{?b <uri:p3> ?e. ?e <uri:p1> ?f} . "//
            + "}";//

    final SPARQLParser parser = new SPARQLParser();
    final ParsedQuery pq1 = parser.parseQuery(query1, null);
    final ParsedQuery pq2 = parser.parseQuery(query2, null);
    final TupleExpr te1 = pq1.getTupleExpr();
    final TupleExpr te2 = pq2.getTupleExpr();

    final TupleExpr unOpt = te1.clone();
    final List<QueryModelNode> remainingNodes = getNodes(te1);
    final Set<QueryModelNode> unMatchedNodes = new HashSet<>();
    unMatchedNodes.add(remainingNodes.get(8));
    unMatchedNodes.add(remainingNodes.get(9));
    unMatchedNodes.add(remainingNodes.get(10));
    unMatchedNodes.add(remainingNodes.get(11));
    unMatchedNodes.add(remainingNodes.get(12));
    unMatchedNodes.add(remainingNodes.get(7));

    final SimpleExternalTupleSet pcj = new SimpleExternalTupleSet((Projection) te2);
    final List<ExternalTupleSet> externalList = new ArrayList<>();
    externalList.add(pcj);

    provider.setIndices(externalList);
    final PCJOptimizer optimizer = new PCJOptimizer(externalList, false, provider);
    optimizer.optimize(te1, null, null);

    Assert.assertEquals(true, validatePcj(te1, unOpt, externalList, unMatchedNodes));
}

开发者ID:apache，项目名称:incubator-rya，代码行数:53，代码来源:PCJOptimizerTest.java

示例9: testSwitchTwoBoundVars

import org.openrdf.query.algebra.TupleExpr; //导入方法依赖的package包/类
@Test
public void testSwitchTwoBoundVars() throws Exception {

    final String query1 = ""//
            + "SELECT ?a ?b ?c " //
            + "{" //
            + "  ?a <uri:p0> ?c ." //
            + "  ?c <uri:p5> <uri:o5> ." //
            + " OPTIONAL{?c <uri:p4> <uri:o4>} ."
            + " ?b<uri:p1> ?c ." //
            + " OPTIONAL{ ?a <uri:p1> ?b } ." //
            + " ?a <uri:p2> <uri:o2>. " //
            + " ?b <uri:p3> <uri:o3> " //
            + "}";//

    final String query2 = ""//
            + "SELECT ?a ?b ?c " //
            + "{" //
            + " ?a <uri:p2> <uri:o2>. " //
            + " ?b <uri:p3> <uri:o3>. " //
            + " OPTIONAL{ ?a <uri:p1> ?b } ." //
            + "  ?a <uri:p0> ?c ." //
            + "  ?b<uri:p1> ?c " //
            + "}";//

    final SPARQLParser parser = new SPARQLParser();
    final ParsedQuery pq1 = parser.parseQuery(query1, null);
    final ParsedQuery pq2 = parser.parseQuery(query2, null);
    final TupleExpr te1 = pq1.getTupleExpr();
    final TupleExpr te2 = pq2.getTupleExpr();

    final TupleExpr unOpt = te1.clone();
    final List<QueryModelNode> remainingNodes = getNodes(te1);
    final Set<QueryModelNode> unMatchedNodes = new HashSet<>();
    unMatchedNodes.add(remainingNodes.get(1));
    unMatchedNodes.add(remainingNodes.get(2));

    final SimpleExternalTupleSet pcj = new SimpleExternalTupleSet((Projection) te2);
    final List<ExternalTupleSet> externalList = new ArrayList<>();
    externalList.add(pcj);

    provider.setIndices(externalList);
    final PCJOptimizer optimizer = new PCJOptimizer(externalList, false, provider);
    optimizer.optimize(te1, null, null);

    Assert.assertEquals(true, validatePcj(te1, unOpt, externalList, unMatchedNodes));
}

开发者ID:apache，项目名称:incubator-rya，代码行数:48，代码来源:PCJOptimizerTest.java

示例10: testSegmentWithLargeUnion

import org.openrdf.query.algebra.TupleExpr; //导入方法依赖的package包/类
@Test
public void testSegmentWithLargeUnion() throws Exception {

    final String query1 = ""//
            + "SELECT ?e ?c ?l" //
            + "{" //
            + " {?e <uri:p1> <uri:o1>. } UNION { " //
            + "  ?e <uri:p0> ?l ." //
            + "  ?l <uri:p5> <uri:o5> ." //
            + " OPTIONAL{?l <uri:p4> <uri:o4>} ." + "  ?c<uri:p1> ?l ." //
            + " OPTIONAL{ ?e <uri:p1> ?c } ." //
            + " ?e <uri:p2> <uri:o2>. " //
            + " ?c <uri:p3> <uri:o3> " //
            + " }  . "//
            + "  ?e <uri:p2> ?c . "//
            + "  ?e <uri:p3> <uri:o2>  . "//
            + "}";//

    final String query2 = ""//
            + "SELECT ?a ?b ?c " //
            + "{" //
            + " ?a <uri:p2> <uri:o2>. " //
            + " ?b <uri:p3> <uri:o3>. " //
            + " OPTIONAL{ ?a <uri:p1> ?b } ." //
            + "  ?a <uri:p0> ?c ." //
            + "  ?b<uri:p1> ?c " //
            + "}";//

    final String query3 = ""//
            + "SELECT ?h ?i" //
            + "{" //
            + "  ?h <uri:p2> ?i . "//
            + "  ?h <uri:p3> <uri:o2>  . "//
            + "}";//

    final SPARQLParser parser = new SPARQLParser();
    final ParsedQuery pq1 = parser.parseQuery(query1, null);
    final ParsedQuery pq2 = parser.parseQuery(query2, null);
    final ParsedQuery pq3 = parser.parseQuery(query3, null);
    final TupleExpr te1 = pq1.getTupleExpr();
    final TupleExpr te2 = pq2.getTupleExpr();
    final TupleExpr te3 = pq3.getTupleExpr();

    final TupleExpr unOpt = te1.clone();
    final List<QueryModelNode> remainingNodes = getNodes(te1);
    final Set<QueryModelNode> unMatchedNodes = new HashSet<>();
    unMatchedNodes.add(remainingNodes.get(0));
    unMatchedNodes.add(remainingNodes.get(2));
    unMatchedNodes.add(remainingNodes.get(3));

    final SimpleExternalTupleSet pcj1 = new SimpleExternalTupleSet((Projection) te2);
    final SimpleExternalTupleSet pcj2 = new SimpleExternalTupleSet((Projection) te3);
    final List<ExternalTupleSet> externalList = new ArrayList<>();
    externalList.add(pcj1);
    externalList.add(pcj2);

    provider.setIndices(externalList);
    final PCJOptimizer optimizer = new PCJOptimizer(externalList, false, provider);
    optimizer.optimize(te1, null, null);

    Assert.assertEquals(true, validatePcj(te1, unOpt, externalList, unMatchedNodes));

}

开发者ID:apache，项目名称:incubator-rya，代码行数:64，代码来源:PCJOptimizerTest.java

示例11: testSegmentWithUnionAndFilters

import org.openrdf.query.algebra.TupleExpr; //导入方法依赖的package包/类
@Test
public void testSegmentWithUnionAndFilters() throws Exception {

    final String query1 = ""//
            + "SELECT ?e ?c ?l" //
            + "{" //
            + " Filter(?e = <uri:s1>) " //
            + " Filter(?c = <uri:s2>) " //
            + " {?e <uri:p1> <uri:o1>. } UNION { ?e a ?c. OPTIONAL {?e <uri:talksTo> ?l}. ?e <uri:p5> <uri:o4>. ?e <uri:p4> <uri:o3> }  . "//
            + "  ?e <uri:p2> ?c . "//
            + "  ?e <uri:p3> <uri:o2>  . "//
            + "}";//

    final String query2 = ""//
            + "SELECT ?a ?b ?m" //
            + "{" //
            + " Filter(?b = <uri:s2>) " //
            + " ?a <uri:p5> <uri:o4> ." //
            + " ?a <uri:p4> <uri:o3> ." //
            + "  OPTIONAL {?a <uri:talksTo> ?m} . "//
            + "  ?a a ?b . "//
            + "}";//

    final String query3 = ""//
            + "SELECT ?h ?i" //
            + "{" //
            + " Filter(?h = <uri:s1>) " //
            + "  ?h <uri:p2> ?i . "//
            + "  ?h <uri:p3> <uri:o2>  . "//
            + "}";//

    final SPARQLParser parser = new SPARQLParser();
    final ParsedQuery pq1 = parser.parseQuery(query1, null);
    final ParsedQuery pq2 = parser.parseQuery(query2, null);
    final ParsedQuery pq3 = parser.parseQuery(query3, null);
    final TupleExpr te1 = pq1.getTupleExpr();
    final TupleExpr te2 = pq2.getTupleExpr();
    final TupleExpr te3 = pq3.getTupleExpr();

    final TupleExpr unOpt = te1.clone();
    final List<QueryModelNode> remainingNodes = getNodes(te1);
    final Set<QueryModelNode> unMatchedNodes = new HashSet<>();
    unMatchedNodes.add(remainingNodes.get(0));

    final SimpleExternalTupleSet pcj1 = new SimpleExternalTupleSet((Projection) te2);
    final SimpleExternalTupleSet pcj2 = new SimpleExternalTupleSet((Projection) te3);
    final List<ExternalTupleSet> externalList = new ArrayList<>();
    externalList.add(pcj1);
    externalList.add(pcj2);

    provider.setIndices(externalList);
    final PCJOptimizer optimizer = new PCJOptimizer(externalList, false, provider);
    optimizer.optimize(te1, null, null);

    Assert.assertEquals(true, validatePcj(te1, unOpt, externalList, unMatchedNodes));

}

开发者ID:apache，项目名称:incubator-rya，代码行数:58，代码来源:PCJOptimizerTest.java

示例12: testSegmentWithLeftJoinsAndFilters

import org.openrdf.query.algebra.TupleExpr; //导入方法依赖的package包/类
@Test
public void testSegmentWithLeftJoinsAndFilters() throws Exception {

    final String query1 = ""//
            + "SELECT ?e ?c ?l" //
            + "{" //
            + " Filter(?e = <uri:s1>) " //
            + " Filter(?c = <uri:s2>) " //
            + " ?e <uri:p1> <uri:o1>. " + " OPTIONAL {?e <uri:p2> ?l}. " + " ?c <uri:p3> <uri:o3>  . "//
            + "  ?c <uri:p4> ?e  . "//
            + " OPTIONAL {?e <uri:p2> ?c } . "//
            + "}";//

    final String query2 = ""//
            + "SELECT ?e ?c ?l" //
            + "{" //
            + " Filter(?c = <uri:s2>) " //
            + " ?e <uri:p1> <uri:o1>. " + " OPTIONAL {?e <uri:p2> ?l}. " + " ?c <uri:p3> <uri:o3>  . "//
            + "}";//

    final String query3 = ""//
            + "SELECT ?e ?c" //
            + "{" //
            + " Filter(?e = <uri:s1>) " //
            + "  ?c <uri:p4> ?e  . "//
            + " OPTIONAL {?e <uri:p2> ?c } . "//
            + "}";//

    final SPARQLParser parser = new SPARQLParser();
    final ParsedQuery pq1 = parser.parseQuery(query1, null);
    final ParsedQuery pq2 = parser.parseQuery(query2, null);
    final ParsedQuery pq3 = parser.parseQuery(query3, null);
    final TupleExpr te1 = pq1.getTupleExpr();
    final TupleExpr te2 = pq2.getTupleExpr();
    final TupleExpr te3 = pq3.getTupleExpr();

    final TupleExpr unOpt = te1.clone();

    final SimpleExternalTupleSet pcj1 = new SimpleExternalTupleSet((Projection) te2);
    final SimpleExternalTupleSet pcj2 = new SimpleExternalTupleSet((Projection) te3);
    final List<ExternalTupleSet> externalList = new ArrayList<>();
    externalList.add(pcj1);
    externalList.add(pcj2);

    provider.setIndices(externalList);
    final PCJOptimizer optimizer = new PCJOptimizer(externalList, false, provider);
    optimizer.optimize(te1, null, null);

    Assert.assertEquals(true, validatePcj(te1, unOpt, externalList, new HashSet<QueryModelNode>()));
}

开发者ID:apache，项目名称:incubator-rya，代码行数:51，代码来源:PCJOptimizerTest.java

注：本文中的org.openrdf.query.algebra.TupleExpr.clone方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。