Examples with TemporaryTableColumn org.hibernate.dialect.temptable.TemporaryTableColumn used on opensource projects

Example 1 with TemporaryTableColumn

use of org.hibernate.dialect.temptable.TemporaryTableColumn in project hibernate-orm by hibernate.

the class ExecuteWithTemporaryTableHelper method saveMatchingIdsIntoIdTable.

public static int saveMatchingIdsIntoIdTable(MultiTableSqmMutationConverter sqmConverter, Predicate suppliedPredicate, TemporaryTable idTable, Function<SharedSessionContractImplementor, String> sessionUidAccess, JdbcParameterBindings jdbcParameterBindings, ExecutionContext executionContext) {
    final SessionFactoryImplementor factory = executionContext.getSession().getFactory();
    final TableGroup mutatingTableGroup = sqmConverter.getMutatingTableGroup();
    assert mutatingTableGroup.getModelPart() instanceof EntityMappingType;
    final EntityMappingType mutatingEntityDescriptor = (EntityMappingType) mutatingTableGroup.getModelPart();
    final NamedTableReference idTableReference = new NamedTableReference(idTable.getTableExpression(), InsertStatement.DEFAULT_ALIAS, false, factory);
    final InsertStatement idTableInsert = new InsertStatement(idTableReference);
    for (int i = 0; i < idTable.getColumns().size(); i++) {
        final TemporaryTableColumn column = idTable.getColumns().get(i);
        idTableInsert.addTargetColumnReferences(new ColumnReference(idTableReference, column.getColumnName(), // id columns cannot be formulas and cannot have custom read and write expressions
        false, null, null, column.getJdbcMapping(), factory));
    }
    final QuerySpec matchingIdSelection = new QuerySpec(true, 1);
    idTableInsert.setSourceSelectStatement(matchingIdSelection);
    matchingIdSelection.getFromClause().addRoot(mutatingTableGroup);
    mutatingEntityDescriptor.getIdentifierMapping().forEachSelectable((jdbcPosition, selection) -> {
        final TableReference tableReference = mutatingTableGroup.resolveTableReference(mutatingTableGroup.getNavigablePath(), selection.getContainingTableExpression());
        matchingIdSelection.getSelectClause().addSqlSelection(new SqlSelectionImpl(jdbcPosition, jdbcPosition + 1, sqmConverter.getSqlExpressionResolver().resolveSqlExpression(SqlExpressionResolver.createColumnReferenceKey(tableReference, selection.getSelectionExpression()), sqlAstProcessingState -> new ColumnReference(tableReference, selection, factory))));
    });
    if (idTable.getSessionUidColumn() != null) {
        final int jdbcPosition = matchingIdSelection.getSelectClause().getSqlSelections().size();
        matchingIdSelection.getSelectClause().addSqlSelection(new SqlSelectionImpl(jdbcPosition, jdbcPosition + 1, new QueryLiteral<>(sessionUidAccess.apply(executionContext.getSession()), (BasicValuedMapping) idTable.getSessionUidColumn().getJdbcMapping())));
    }
    matchingIdSelection.applyPredicate(suppliedPredicate);
    return saveIntoTemporaryTable(idTableInsert, jdbcParameterBindings, executionContext);
}

Example 2 with TemporaryTableColumn

use of org.hibernate.dialect.temptable.TemporaryTableColumn in project hibernate-orm by hibernate.

the class InsertExecutionDelegate method insertRootTable.

private void insertRootTable(String tableExpression, int rows, String[] keyColumns, ExecutionContext executionContext) {
    final TableReference updatingTableReference = updatingTableGroup.getTableReference(updatingTableGroup.getNavigablePath(), tableExpression, true, true);
    final IdentifierGenerator identifierGenerator = entityDescriptor.getEntityPersister().getIdentifierGenerator();
    final List<Assignment> assignments = assignmentsByTable.get(updatingTableReference);
    if ((assignments == null || assignments.isEmpty()) && !(identifierGenerator instanceof PostInsertIdentifierGenerator)) {
        throw new IllegalStateException("There must be at least a single root table assignment");
    }
    final NamedTableReference dmlTableReference = resolveUnionTableReference(updatingTableReference, tableExpression);
    // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    // Create the SQL AST and convert it into a JdbcOperation
    final QuerySpec querySpec = new QuerySpec(true);
    final NamedTableReference temporaryTableReference = new NamedTableReference(insertStatement.getTargetTable().getTableExpression(), updatingTableReference.getIdentificationVariable(), false, sessionFactory);
    final TableGroupImpl temporaryTableGroup = new TableGroupImpl(updatingTableGroup.getNavigablePath(), null, temporaryTableReference, entityDescriptor);
    querySpec.getFromClause().addRoot(temporaryTableGroup);
    final InsertStatement insertStatement = new InsertStatement(dmlTableReference);
    insertStatement.setSourceSelectStatement(querySpec);
    for (Assignment assignment : assignments) {
        insertStatement.addTargetColumnReferences(assignment.getAssignable().getColumnReferences());
        for (ColumnReference columnReference : assignment.getAssignable().getColumnReferences()) {
            querySpec.getSelectClause().addSqlSelection(new SqlSelectionImpl(1, 0, new ColumnReference(updatingTableReference.getIdentificationVariable(), columnReference.getColumnExpression(), false, null, null, columnReference.getJdbcMapping(), sessionFactory)));
        }
    }
    final JdbcServices jdbcServices = sessionFactory.getJdbcServices();
    final Map<Object, Object> entityTableToRootIdentity;
    if (identifierGenerator instanceof PostInsertIdentifierGenerator) {
        final BasicEntityIdentifierMapping identifierMapping = (BasicEntityIdentifierMapping) entityDescriptor.getIdentifierMapping();
        final QuerySpec idSelectQuerySpec = new QuerySpec(true);
        idSelectQuerySpec.getFromClause().addRoot(temporaryTableGroup);
        final ColumnReference columnReference = new ColumnReference((String) null, TemporaryTable.ENTITY_TABLE_IDENTITY_COLUMN, false, null, null, identifierMapping.getJdbcMapping(), sessionFactory);
        idSelectQuerySpec.getSelectClause().addSqlSelection(new SqlSelectionImpl(1, 0, columnReference));
        idSelectQuerySpec.addSortSpecification(new SortSpecification(columnReference, SortOrder.ASCENDING));
        final SelectStatement selectStatement = new SelectStatement(idSelectQuerySpec, Collections.singletonList(new BasicFetch<>(0, null, null, identifierMapping, null, FetchTiming.IMMEDIATE, null)));
        final JdbcSelect jdbcSelect = jdbcServices.getJdbcEnvironment().getSqlAstTranslatorFactory().buildSelectTranslator(sessionFactory, selectStatement).translate(null, executionContext.getQueryOptions());
        final List<Object> list = jdbcServices.getJdbcSelectExecutor().list(jdbcSelect, JdbcParameterBindings.NO_BINDINGS, executionContext, null, ListResultsConsumer.UniqueSemantic.NONE);
        entityTableToRootIdentity = new LinkedHashMap<>(list.size());
        for (Object o : list) {
            entityTableToRootIdentity.put(o, null);
        }
        querySpec.applyPredicate(new ComparisonPredicate(columnReference, ComparisonOperator.EQUAL, new JdbcParameterImpl(identifierMapping.getJdbcMapping())));
    } else {
        entityTableToRootIdentity = null;
        if (identifierGenerator instanceof OptimizableGenerator) {
            final Optimizer optimizer = ((OptimizableGenerator) identifierGenerator).getOptimizer();
            // but only if the target paths don't already contain the id
            if (optimizer != null && optimizer.getIncrementSize() > 1 && insertStatement.getTargetColumnReferences().stream().noneMatch(c -> keyColumns[0].equals(c.getColumnExpression()))) {
                final BasicEntityIdentifierMapping identifierMapping = (BasicEntityIdentifierMapping) entityDescriptor.getIdentifierMapping();
                final JdbcParameter rowNumber = new JdbcParameterImpl(identifierMapping.getJdbcMapping());
                final JdbcParameter rootIdentity = new JdbcParameterImpl(identifierMapping.getJdbcMapping());
                final List<Assignment> temporaryTableAssignments = new ArrayList<>(1);
                final ColumnReference idColumnReference = new ColumnReference((String) null, identifierMapping, sessionFactory);
                temporaryTableAssignments.add(new Assignment(idColumnReference, rootIdentity));
                final TemporaryTableColumn rowNumberColumn = entityTable.getColumns().get(entityTable.getColumns().size() - 1);
                final UpdateStatement updateStatement = new UpdateStatement(temporaryTableReference, temporaryTableAssignments, new ComparisonPredicate(new ColumnReference((String) null, rowNumberColumn.getColumnName(), false, null, null, rowNumberColumn.getJdbcMapping(), sessionFactory), ComparisonOperator.EQUAL, rowNumber));
                final JdbcUpdate jdbcUpdate = jdbcServices.getJdbcEnvironment().getSqlAstTranslatorFactory().buildUpdateTranslator(sessionFactory, updateStatement).translate(null, executionContext.getQueryOptions());
                final JdbcParameterBindings updateBindings = new JdbcParameterBindingsImpl(2);
                for (int i = 0; i < rows; i++) {
                    updateBindings.addBinding(rowNumber, new JdbcParameterBindingImpl(rowNumberColumn.getJdbcMapping(), i + 1));
                    updateBindings.addBinding(rootIdentity, new JdbcParameterBindingImpl(identifierMapping.getJdbcMapping(), identifierGenerator.generate(executionContext.getSession(), null)));
                    jdbcServices.getJdbcMutationExecutor().execute(jdbcUpdate, updateBindings, sql -> executionContext.getSession().getJdbcCoordinator().getStatementPreparer().prepareStatement(sql), (integer, preparedStatement) -> {
                    }, executionContext);
                }
                insertStatement.addTargetColumnReferences(new ColumnReference((String) null, keyColumns[0], false, null, null, identifierMapping.getJdbcMapping(), sessionFactory));
                querySpec.getSelectClause().addSqlSelection(new SqlSelectionImpl(1, 0, new ColumnReference(updatingTableReference.getIdentificationVariable(), idColumnReference.getColumnExpression(), false, null, null, idColumnReference.getJdbcMapping(), sessionFactory)));
            }
        }
    }
    final JdbcInsert jdbcInsert = jdbcServices.getJdbcEnvironment().getSqlAstTranslatorFactory().buildInsertTranslator(sessionFactory, insertStatement).translate(null, executionContext.getQueryOptions());
    if (identifierGenerator instanceof PostInsertIdentifierGenerator) {
        final PostInsertIdentifierGenerator generator = (PostInsertIdentifierGenerator) identifierGenerator;
        final boolean generatedKeysEnabled = sessionFactory.getSessionFactoryOptions().isGetGeneratedKeysEnabled();
        final InsertGeneratedIdentifierDelegate identifierDelegate = generator.getInsertGeneratedIdentifierDelegate((PostInsertIdentityPersister) entityDescriptor.getEntityPersister(), jdbcServices.getDialect(), generatedKeysEnabled);
        final String finalSql = identifierDelegate.prepareIdentifierGeneratingInsert(jdbcInsert.getSql());
        final BasicEntityIdentifierMapping identifierMapping = (BasicEntityIdentifierMapping) entityDescriptor.getIdentifierMapping();
        final ValueBinder jdbcValueBinder = identifierMapping.getJdbcMapping().getJdbcValueBinder();
        for (Map.Entry<Object, Object> entry : entityTableToRootIdentity.entrySet()) {
            final Object rootIdentity = identifierDelegate.performInsert(finalSql, executionContext.getSession(), new Binder() {

                @Override
                public void bindValues(PreparedStatement ps) throws SQLException {
                    jdbcValueBinder.bind(ps, entry.getKey(), 1, executionContext.getSession());
                }

                @Override
                public Object getEntity() {
                    return null;
                }
            });
            entry.setValue(rootIdentity);
        }
        final JdbcParameter entityIdentity = new JdbcParameterImpl(identifierMapping.getJdbcMapping());
        final JdbcParameter rootIdentity = new JdbcParameterImpl(identifierMapping.getJdbcMapping());
        final List<Assignment> temporaryTableAssignments = new ArrayList<>(1);
        temporaryTableAssignments.add(new Assignment(new ColumnReference((String) null, identifierMapping, sessionFactory), rootIdentity));
        final UpdateStatement updateStatement = new UpdateStatement(temporaryTableReference, temporaryTableAssignments, new ComparisonPredicate(new ColumnReference((String) null, TemporaryTable.ENTITY_TABLE_IDENTITY_COLUMN, false, null, null, identifierMapping.getJdbcMapping(), sessionFactory), ComparisonOperator.EQUAL, entityIdentity));
        final JdbcUpdate jdbcUpdate = jdbcServices.getJdbcEnvironment().getSqlAstTranslatorFactory().buildUpdateTranslator(sessionFactory, updateStatement).translate(null, executionContext.getQueryOptions());
        final JdbcParameterBindings updateBindings = new JdbcParameterBindingsImpl(2);
        for (Map.Entry<Object, Object> entry : entityTableToRootIdentity.entrySet()) {
            updateBindings.addBinding(entityIdentity, new JdbcParameterBindingImpl(identifierMapping.getJdbcMapping(), entry.getKey()));
            updateBindings.addBinding(rootIdentity, new JdbcParameterBindingImpl(identifierMapping.getJdbcMapping(), entry.getValue()));
            jdbcServices.getJdbcMutationExecutor().execute(jdbcUpdate, updateBindings, sql -> executionContext.getSession().getJdbcCoordinator().getStatementPreparer().prepareStatement(sql), (integer, preparedStatement) -> {
            }, executionContext);
        }
    } else {
        jdbcServices.getJdbcMutationExecutor().execute(jdbcInsert, JdbcParameterBindings.NO_BINDINGS, sql -> executionContext.getSession().getJdbcCoordinator().getStatementPreparer().prepareStatement(sql), (integer, preparedStatement) -> {
        }, executionContext);
    }
}

Example 3 with TemporaryTableColumn

use of org.hibernate.dialect.temptable.TemporaryTableColumn in project hibernate-orm by hibernate.

the class TableBasedInsertHandler method resolveDelegate.

private ExecutionDelegate resolveDelegate(DomainQueryExecutionContext executionContext) {
    final EntityPersister entityDescriptor = sessionFactory.getRuntimeMetamodels().getMappingMetamodel().getEntityDescriptor(getSqmInsertStatement().getTarget().getEntityName());
    final MultiTableSqmMutationConverter converterDelegate = new MultiTableSqmMutationConverter(entityDescriptor, getSqmInsertStatement(), getSqmInsertStatement().getTarget(), domainParameterXref, executionContext.getQueryOptions(), executionContext.getSession().getLoadQueryInfluencers(), executionContext.getQueryParameterBindings(), sessionFactory);
    final TableGroup insertingTableGroup = converterDelegate.getMutatingTableGroup();
    final Map<SqmParameter<?>, List<List<JdbcParameter>>> parameterResolutions;
    if (domainParameterXref.getSqmParameterCount() == 0) {
        parameterResolutions = Collections.emptyMap();
    } else {
        parameterResolutions = new IdentityHashMap<>();
    }
    // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    // visit the insertion target using our special converter, collecting
    // information about the target paths
    final List<Assignment> targetPathColumns = new ArrayList<>();
    final Map<SqmParameter<?>, MappingModelExpressible<?>> paramTypeResolutions = new LinkedHashMap<>();
    final NamedTableReference entityTableReference = new NamedTableReference(entityTable.getTableExpression(), TemporaryTable.DEFAULT_ALIAS, true, sessionFactory);
    final InsertStatement insertStatement = new InsertStatement(entityTableReference);
    final BaseSqmToSqlAstConverter.AdditionalInsertValues additionalInsertValues = converterDelegate.visitInsertionTargetPaths((assigable, columnReferences) -> {
        insertStatement.addTargetColumnReferences(columnReferences);
        targetPathColumns.add(new Assignment(assigable, (Expression) assigable));
    }, sqmInsertStatement, entityDescriptor, insertingTableGroup, (sqmParameter, mappingType, jdbcParameters) -> {
        parameterResolutions.computeIfAbsent(sqmParameter, k -> new ArrayList<>(1)).add(jdbcParameters);
        paramTypeResolutions.put(sqmParameter, mappingType);
    });
    if (sqmInsertStatement instanceof SqmInsertSelectStatement) {
        final QueryPart queryPart = converterDelegate.visitQueryPart(((SqmInsertSelectStatement<?>) sqmInsertStatement).getSelectQueryPart());
        queryPart.visitQuerySpecs(querySpec -> {
            if (additionalInsertValues.applySelections(querySpec, sessionFactory)) {
                final TemporaryTableColumn rowNumberColumn = entityTable.getColumns().get(entityTable.getColumns().size() - 1);
                final ColumnReference columnReference = new ColumnReference((String) null, rowNumberColumn.getColumnName(), false, null, null, rowNumberColumn.getJdbcMapping(), sessionFactory);
                insertStatement.getTargetColumnReferences().set(insertStatement.getTargetColumnReferences().size() - 1, columnReference);
                targetPathColumns.set(targetPathColumns.size() - 1, new Assignment(columnReference, columnReference));
            } else if (entityDescriptor.getIdentifierGenerator() instanceof OptimizableGenerator) {
                final Optimizer optimizer = ((OptimizableGenerator) entityDescriptor.getIdentifierGenerator()).getOptimizer();
                if (optimizer != null && optimizer.getIncrementSize() > 1) {
                    if (!sessionFactory.getJdbcServices().getDialect().supportsWindowFunctions()) {
                        return;
                    }
                    final TemporaryTableColumn rowNumberColumn = entityTable.getColumns().get(entityTable.getColumns().size() - 1);
                    final ColumnReference columnReference = new ColumnReference((String) null, rowNumberColumn.getColumnName(), false, null, null, rowNumberColumn.getJdbcMapping(), sessionFactory);
                    insertStatement.getTargetColumnReferences().add(columnReference);
                    targetPathColumns.add(new Assignment(columnReference, columnReference));
                    final BasicType<Integer> rowNumberType = sessionFactory.getTypeConfiguration().getBasicTypeForJavaType(Integer.class);
                    querySpec.getSelectClause().addSqlSelection(new SqlSelectionImpl(1, 0, new Over<>(new SelfRenderingFunctionSqlAstExpression("row_number", (appender, args, walker) -> appender.appendSql("row_number()"), Collections.emptyList(), rowNumberType, rowNumberType), Collections.emptyList(), Collections.emptyList())));
                }
            }
        });
        insertStatement.setSourceSelectStatement(queryPart);
    } else {
        // Add the row number column if there is one
        final IdentifierGenerator generator = entityDescriptor.getIdentifierGenerator();
        final BasicType<?> rowNumberType;
        if (generator instanceof OptimizableGenerator) {
            final Optimizer optimizer = ((OptimizableGenerator) generator).getOptimizer();
            if (optimizer != null && optimizer.getIncrementSize() > 1) {
                final TemporaryTableColumn rowNumberColumn = entityTable.getColumns().get(entityTable.getColumns().size() - 1);
                rowNumberType = (BasicType<?>) rowNumberColumn.getJdbcMapping();
                final ColumnReference columnReference = new ColumnReference((String) null, rowNumberColumn.getColumnName(), false, null, null, rowNumberColumn.getJdbcMapping(), sessionFactory);
                insertStatement.getTargetColumnReferences().add(columnReference);
                targetPathColumns.add(new Assignment(columnReference, columnReference));
            } else {
                rowNumberType = null;
            }
        } else {
            rowNumberType = null;
        }
        final List<SqmValues> sqmValuesList = ((SqmInsertValuesStatement<?>) sqmInsertStatement).getValuesList();
        final List<Values> valuesList = new ArrayList<>(sqmValuesList.size());
        for (int i = 0; i < sqmValuesList.size(); i++) {
            final Values values = converterDelegate.visitValues(sqmValuesList.get(i));
            additionalInsertValues.applyValues(values);
            if (rowNumberType != null) {
                values.getExpressions().add(new QueryLiteral<>(i + 1, rowNumberType));
            }
            valuesList.add(values);
        }
        insertStatement.setValuesList(valuesList);
    }
    converterDelegate.pruneTableGroupJoins();
    // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    // cross-reference the TableReference by alias.  The TableGroup already
    // cross-references it by name, but the ColumnReference only has the alias
    final Map<String, TableReference> tableReferenceByAlias = CollectionHelper.mapOfSize(insertingTableGroup.getTableReferenceJoins().size() + 1);
    collectTableReference(insertingTableGroup.getPrimaryTableReference(), tableReferenceByAlias::put);
    for (int i = 0; i < insertingTableGroup.getTableReferenceJoins().size(); i++) {
        collectTableReference(insertingTableGroup.getTableReferenceJoins().get(i), tableReferenceByAlias::put);
    }
    return new InsertExecutionDelegate(sqmInsertStatement, converterDelegate, entityTable, afterUseAction, sessionUidAccess, domainParameterXref, insertingTableGroup, tableReferenceByAlias, targetPathColumns, insertStatement, parameterResolutions, paramTypeResolutions, executionContext);
}