Examples with JdbcLiteral org.hibernate.sql.ast.tree.expression.JdbcLiteral used on opensource projects

Example 1 with JdbcLiteral

use of org.hibernate.sql.ast.tree.expression.JdbcLiteral in project hibernate-orm by hibernate.

the class InPredicateRestrictionProducer method produceRestriction.

@Override
public InListPredicate produceRestriction(List<?> matchingIdValues, EntityMappingType entityDescriptor, int valueIndex, ModelPart valueModelPart, TableReference mutatingTableReference, Supplier<Consumer<SelectableConsumer>> columnsToMatchVisitationSupplier, ExecutionContext executionContext) {
    assert matchingIdValues != null;
    assert !matchingIdValues.isEmpty();
    final SessionFactoryImplementor sessionFactory = executionContext.getSession().getFactory();
    final EntityIdentifierMapping identifierMapping = entityDescriptor.getIdentifierMapping();
    final int idColumnCount = identifierMapping.getJdbcTypeCount();
    assert idColumnCount > 0;
    final InListPredicate predicate;
    if (idColumnCount == 1) {
        final BasicValuedModelPart basicIdMapping = (BasicValuedModelPart) identifierMapping;
        final String idColumn = basicIdMapping.getSelectionExpression();
        final Expression inFixture = new ColumnReference(mutatingTableReference, idColumn, // id columns cannot be formulas and cannot have custom read and write expressions
        false, null, null, basicIdMapping.getJdbcMapping(), sessionFactory);
        predicate = new InListPredicate(inFixture);
        matchingIdValues.forEach(matchingId -> predicate.addExpression(new JdbcLiteral<>(matchingId, basicIdMapping.getJdbcMapping())));
    } else {
        final List<ColumnReference> columnReferences = new ArrayList<>(idColumnCount);
        final List<JdbcMapping> jdbcMappings = new ArrayList<>(idColumnCount);
        identifierMapping.forEachSelectable((columnIndex, selection) -> {
            columnReferences.add(new ColumnReference(mutatingTableReference, selection, sessionFactory));
            jdbcMappings.add(selection.getJdbcMapping());
        });
        final Expression inFixture = new SqlTuple(columnReferences, identifierMapping);
        predicate = new InListPredicate(inFixture);
        matchingIdValues.forEach(matchingId -> {
            assert matchingId instanceof Object[];
            final Object[] matchingIdParts = (Object[]) matchingId;
            final List<JdbcLiteral<?>> tupleParts = new ArrayList<>(idColumnCount);
            for (int p = 0; p < matchingIdParts.length; p++) {
                tupleParts.add(new JdbcLiteral<>(matchingIdParts[p], jdbcMappings.get(p)));
            }
            predicate.addExpression(new SqlTuple(tupleParts, identifierMapping));
        });
    }
    return predicate;
}

Example 2 with JdbcLiteral

use of org.hibernate.sql.ast.tree.expression.JdbcLiteral in project hibernate-orm by hibernate.

the class BaseSqmToSqlAstConverter method visitIsEmptyPredicate.

@Override
public Object visitIsEmptyPredicate(SqmEmptinessPredicate predicate) {
    prepareReusablePath(predicate.getPluralPath(), () -> null);
    final QuerySpec subQuerySpec = new QuerySpec(false, 1);
    final FromClauseAccess parentFromClauseAccess = getFromClauseAccess();
    final SqlAstProcessingStateImpl subQueryState = new SqlAstProcessingStateImpl(getCurrentProcessingState(), this, currentClauseStack::getCurrent);
    pushProcessingState(subQueryState);
    try {
        final SqmPluralValuedSimplePath<?> sqmPluralPath = predicate.getPluralPath();
        final NavigablePath pluralPathNavPath = sqmPluralPath.getNavigablePath();
        final NavigablePath parentNavPath = pluralPathNavPath.getParent();
        assert parentNavPath != null;
        final TableGroup parentTableGroup = parentFromClauseAccess.getTableGroup(parentNavPath);
        final SqlAliasBase sqlAliasBase = sqlAliasBaseManager.createSqlAliasBase(parentTableGroup.getGroupAlias());
        final TableGroup tableGroup = new CorrelatedTableGroup(parentTableGroup, sqlAliasBase, subQuerySpec, subQuerySpec::applyPredicate, creationContext.getSessionFactory());
        subQueryState.getSqlAstCreationState().getFromClauseAccess().registerTableGroup(parentNavPath, tableGroup);
        registerPluralTableGroupParts(tableGroup);
        final PluralAttributeMapping pluralAttributeMapping = (PluralAttributeMapping) visitPluralValuedPath(sqmPluralPath).getExpressionType();
        // The creation of the table group join against the correlated table group
        // has the side effect that the from and where clause of the sub-query are set
        tableGroup.addTableGroupJoin(pluralAttributeMapping.createTableGroupJoin(pluralPathNavPath, tableGroup, sqmPluralPath.getExplicitAlias(), SqlAstJoinType.INNER, false, false, sqlAliasBaseManager, subQueryState, this, creationContext));
        final ForeignKeyDescriptor collectionKeyDescriptor = pluralAttributeMapping.getKeyDescriptor();
        final int jdbcTypeCount = collectionKeyDescriptor.getJdbcTypeCount();
        assert jdbcTypeCount > 0;
        final JdbcLiteral<Integer> jdbcLiteral = new JdbcLiteral<>(1, basicType(Integer.class));
        subQuerySpec.getSelectClause().addSqlSelection(new SqlSelectionImpl(1, 0, jdbcLiteral));
        return new ExistsPredicate(subQuerySpec, !predicate.isNegated(), getBooleanType());
    } finally {
        popProcessingStateStack();
    }
}