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Example 6 with SqmSelection

use of org.hibernate.query.sqm.tree.select.SqmSelection in project hibernate-orm by hibernate.

the class BaseSqmToSqlAstConverter method visitSelection.

@Override
public Void visitSelection(SqmSelection<?> sqmSelection) {
    final List<Map.Entry<String, DomainResultProducer<?>>> resultProducers;
    final SqmSelectableNode<?> selectionNode = sqmSelection.getSelectableNode();
    if (selectionNode instanceof SqmJpaCompoundSelection<?>) {
        final SqmJpaCompoundSelection<?> selectableNode = (SqmJpaCompoundSelection<?>) selectionNode;
        resultProducers = new ArrayList<>(selectableNode.getSelectionItems().size());
        for (SqmSelectableNode<?> selectionItem : selectableNode.getSelectionItems()) {
            if (selectionItem instanceof SqmPath<?>) {
                prepareForSelection((SqmPath<?>) selectionItem);
            }
            resultProducers.add(new AbstractMap.SimpleEntry<>(selectionItem.getAlias(), (DomainResultProducer<?>) selectionItem.accept(this)));
        }
    } else {
        if (selectionNode instanceof SqmPath<?>) {
            prepareForSelection((SqmPath<?>) selectionNode);
        }
        resultProducers = Collections.singletonList(new AbstractMap.SimpleEntry<>(sqmSelection.getAlias(), (DomainResultProducer<?>) selectionNode.accept(this)));
    }
    final Stack<SqlAstProcessingState> processingStateStack = getProcessingStateStack();
    final boolean needsDomainResults = domainResults != null && currentClauseContributesToTopLevelSelectClause();
    final boolean collectDomainResults;
    if (processingStateStack.depth() == 1) {
        collectDomainResults = needsDomainResults;
    } else {
        final SqlAstProcessingState current = processingStateStack.getCurrent();
        // Since we only want to create domain results for the first/left-most query spec within query groups,
        // we have to check if the current query spec is the left-most.
        // This is the case when all upper level in-flight query groups are still empty
        collectDomainResults = needsDomainResults && processingStateStack.findCurrentFirst(processingState -> {
            if (!(processingState instanceof SqlAstQueryPartProcessingState)) {
                return Boolean.FALSE;
            }
            if (processingState == current) {
                return null;
            }
            final QueryPart part = ((SqlAstQueryPartProcessingState) processingState).getInflightQueryPart();
            if (part instanceof QueryGroup) {
                if (((QueryGroup) part).getQueryParts().isEmpty()) {
                    return null;
                }
            }
            return Boolean.FALSE;
        }) == null;
    }
    // arguments
    if (collectDomainResults) {
        resultProducers.forEach(entry -> {
            if (!(entry.getValue() instanceof DynamicInstantiation<?>)) {
                currentSqlSelectionCollector().next();
            }
            domainResults.add(entry.getValue().createDomainResult(entry.getKey(), this));
        });
    } else if (needsDomainResults) {
        // We just create domain results for the purpose of creating selections
        // This is necessary for top-level query specs within query groups to avoid cycles
        resultProducers.forEach(entry -> {
            if (!(entry.getValue() instanceof DynamicInstantiation<?>)) {
                currentSqlSelectionCollector().next();
            }
            entry.getValue().createDomainResult(entry.getKey(), this);
        });
    } else {
        resultProducers.forEach(entry -> {
            if (!(entry.getValue() instanceof DynamicInstantiation<?>)) {
                currentSqlSelectionCollector().next();
            }
            entry.getValue().applySqlSelections(this);
        });
    }
    return null;
}
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Example 7 with SqmSelection

use of org.hibernate.query.sqm.tree.select.SqmSelection in project hibernate-orm by hibernate.

the class QuerySqmImpl method verifyInsertTypesMatch.

private void verifyInsertTypesMatch(String hqlString, SqmInsertStatement<R> sqmStatement) {
    final List<SqmPath<?>> insertionTargetPaths = sqmStatement.getInsertionTargetPaths();
    if (sqmStatement instanceof SqmInsertValuesStatement<?>) {
        final SqmInsertValuesStatement<R> statement = (SqmInsertValuesStatement<R>) sqmStatement;
        for (SqmValues sqmValues : statement.getValuesList()) {
            verifyInsertTypesMatch(hqlString, insertionTargetPaths, sqmValues.getExpressions());
        }
    } else {
        final SqmInsertSelectStatement<R> statement = (SqmInsertSelectStatement<R>) sqmStatement;
        final List<SqmSelection<?>> selections = statement.getSelectQueryPart().getFirstQuerySpec().getSelectClause().getSelections();
        verifyInsertTypesMatch(hqlString, insertionTargetPaths, selections);
        statement.getSelectQueryPart().validateQueryStructureAndFetchOwners();
    }
}
Also used : SqmSelection(org.hibernate.query.sqm.tree.select.SqmSelection) SqmValues(org.hibernate.query.sqm.tree.insert.SqmValues) SqmInsertValuesStatement(org.hibernate.query.sqm.tree.insert.SqmInsertValuesStatement) SqmPath(org.hibernate.query.sqm.tree.domain.SqmPath) SqmInsertSelectStatement(org.hibernate.query.sqm.tree.insert.SqmInsertSelectStatement)

Example 8 with SqmSelection

use of org.hibernate.query.sqm.tree.select.SqmSelection in project hibernate-orm by hibernate.

the class ASTParserLoadingTest method testAliases.

@Test
public void testAliases() {
    Session s = openSession();
    Transaction t = s.beginTransaction();
    Animal a = new Animal();
    a.setBodyWeight(12.4f);
    a.setDescription("an animal");
    s.persist(a);
    Query<?> q = s.createQuery("select a.bodyWeight as abw, a.description from Animal a");
    SqmSelectStatement<?> sqmStatement = (SqmSelectStatement<?>) q.unwrap(QuerySqmImpl.class).getSqmStatement();
    List<SqmSelection<?>> selections = sqmStatement.getQuerySpec().getSelectClause().getSelections();
    assertThat(selections.size(), is(2));
    assertThat(selections.get(0).getAlias(), is("abw"));
    assertThat(selections.get(1).getAlias(), nullValue());
    q = s.createQuery("select count(*), avg(a.bodyWeight) as avg from Animal a");
    sqmStatement = (SqmSelectStatement<?>) q.unwrap(QuerySqmImpl.class).getSqmStatement();
    selections = sqmStatement.getQuerySpec().getSelectClause().getSelections();
    assertThat(selections.size(), is(2));
    assertThat(selections.get(0), notNullValue());
    assertThat(selections.get(0).getAlias(), nullValue());
    assertThat(selections.get(0).getSelectableNode(), instanceOf(SqmFunction.class));
    assertThat(((SqmFunction) selections.get(0).getSelectableNode()).getFunctionName(), is("count"));
    assertThat(selections.get(1), notNullValue());
    assertThat(selections.get(1).getAlias(), notNullValue());
    assertThat(selections.get(1).getAlias(), is("avg"));
    assertThat(selections.get(1).getSelectableNode(), instanceOf(SqmFunction.class));
    assertThat(((SqmFunction) selections.get(1).getSelectableNode()).getFunctionName(), is("avg"));
    s.delete(a);
    t.commit();
    s.close();
}
Also used : QuerySqmImpl(org.hibernate.query.sqm.internal.QuerySqmImpl) SqmSelectStatement(org.hibernate.query.sqm.tree.select.SqmSelectStatement) Transaction(org.hibernate.Transaction) SqmSelection(org.hibernate.query.sqm.tree.select.SqmSelection) SqmFunction(org.hibernate.query.sqm.tree.expression.SqmFunction) Session(org.hibernate.Session) Test(org.junit.Test)

Example 9 with SqmSelection

use of org.hibernate.query.sqm.tree.select.SqmSelection in project hibernate-orm by hibernate.

the class AttributePathTests method testImplicitJoinReuse2.

@Test
public void testImplicitJoinReuse2() {
    final SqmSelectStatement<?> statement = interpretSelect("select s.mate from Person s where s.mate.dob = ?1");
    assertThat(statement.getQuerySpec().getFromClause().getRoots().size(), is(1));
    final SqmRoot<?> sqmRoot = statement.getQuerySpec().getFromClause().getRoots().get(0);
    assertThat(sqmRoot.getJoins().size(), is(0));
    assertThat(sqmRoot.getReusablePaths().size(), is(1));
    final SqmSelection selection = statement.getQuerySpec().getSelectClause().getSelections().get(0);
    assertThat(selection.getSelectableNode(), instanceOf(SqmEntityValuedSimplePath.class));
    final SqmPath selectExpression = (SqmPath) selection.getSelectableNode();
    assertThat(selectExpression.getReferencedPathSource().getSqmPathType(), instanceOf(EntityDomainType.class));
    final SqmComparisonPredicate predicate = (SqmComparisonPredicate) statement.getQuerySpec().getWhereClause().getPredicate();
    final SqmPath predicateLhs = (SqmPath) predicate.getLeftHandExpression();
    assertThat(predicateLhs.getLhs(), notNullValue());
    // from-clause paths
    // assertPropertyPath( space.getRoot(), "com.acme.Something(s)" );
    // assertPropertyPath( space.getJoins().get( 0 ), "com.acme.Something(s).entity" );
    // expression paths
    assertPropertyPath((SqmExpression) selection.getSelectableNode(), Person.class.getName() + "(s).mate");
    assertPropertyPath(predicateLhs, Person.class.getName() + "(s).mate.dob");
}
Also used : SqmSelection(org.hibernate.query.sqm.tree.select.SqmSelection) SqmComparisonPredicate(org.hibernate.query.sqm.tree.predicate.SqmComparisonPredicate) SqmEntityValuedSimplePath(org.hibernate.query.sqm.tree.domain.SqmEntityValuedSimplePath) SqmPath(org.hibernate.query.sqm.tree.domain.SqmPath) EntityDomainType(org.hibernate.metamodel.model.domain.EntityDomainType) BaseSqmUnitTest(org.hibernate.orm.test.query.sqm.BaseSqmUnitTest) Test(org.junit.jupiter.api.Test)

Aggregations

SqmSelection (org.hibernate.query.sqm.tree.select.SqmSelection)9 SqmPath (org.hibernate.query.sqm.tree.domain.SqmPath)4 SqmComparisonPredicate (org.hibernate.query.sqm.tree.predicate.SqmComparisonPredicate)3 SqmSelectClause (org.hibernate.query.sqm.tree.select.SqmSelectClause)3 SqmSubQuery (org.hibernate.query.sqm.tree.select.SqmSubQuery)3 SQLException (java.sql.SQLException)2 HibernateException (org.hibernate.HibernateException)2 NotYetImplementedFor6Exception (org.hibernate.NotYetImplementedFor6Exception)2 QueryException (org.hibernate.QueryException)2 MultipleBagFetchException (org.hibernate.loader.MultipleBagFetchException)2 MappingMetamodel (org.hibernate.metamodel.MappingMetamodel)2 MappingModelExpressible (org.hibernate.metamodel.mapping.MappingModelExpressible)2 EntityDomainType (org.hibernate.metamodel.model.domain.EntityDomainType)2 DiscriminatorSqmPath (org.hibernate.metamodel.model.domain.internal.DiscriminatorSqmPath)2 BaseSqmUnitTest (org.hibernate.orm.test.query.sqm.BaseSqmUnitTest)2 SemanticException (org.hibernate.query.SemanticException)2 InterpretationException (org.hibernate.query.sqm.InterpretationException)2 SqmExpressible (org.hibernate.query.sqm.SqmExpressible)2 SelfInterpretingSqmPath (org.hibernate.query.sqm.sql.internal.SelfInterpretingSqmPath)2 SqmEntityValuedSimplePath (org.hibernate.query.sqm.tree.domain.SqmEntityValuedSimplePath)2