Examples with OptimizableGenerator org.hibernate.id.OptimizableGenerator used on opensource projects

Example 1 with OptimizableGenerator

use of org.hibernate.id.OptimizableGenerator in project hibernate-orm by hibernate.

the class CteInsertHandler method execute.

@Override
public int execute(DomainQueryExecutionContext executionContext) {
    final SqmInsertStatement<?> sqmInsertStatement = getSqmStatement();
    final SessionFactoryImplementor factory = executionContext.getSession().getFactory();
    final EntityPersister entityDescriptor = getEntityDescriptor().getEntityPersister();
    final String explicitDmlTargetAlias;
    if (sqmInsertStatement.getTarget().getExplicitAlias() == null) {
        explicitDmlTargetAlias = "dml_target";
    } else {
        explicitDmlTargetAlias = sqmInsertStatement.getTarget().getExplicitAlias();
    }
    final MultiTableSqmMutationConverter sqmConverter = new MultiTableSqmMutationConverter(entityDescriptor, sqmInsertStatement, sqmInsertStatement.getTarget(), explicitDmlTargetAlias, domainParameterXref, executionContext.getQueryOptions(), executionContext.getSession().getLoadQueryInfluencers(), executionContext.getQueryParameterBindings(), factory);
    final TableGroup insertingTableGroup = sqmConverter.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 int size = sqmStatement.getInsertionTargetPaths().size();
    final List<Map.Entry<SqmCteTableColumn, Assignment>> targetPathColumns = new ArrayList<>(size);
    final List<SqmCteTableColumn> targetPathSqmCteColumns = new ArrayList<>(size);
    final Map<SqmParameter<?>, MappingModelExpressible<?>> paramTypeResolutions = new LinkedHashMap<>();
    final NamedTableReference entityTableReference = new NamedTableReference(cteTable.getCteName(), TemporaryTable.DEFAULT_ALIAS, true, sessionFactory);
    final InsertStatement insertStatement = new InsertStatement(entityTableReference);
    final BaseSqmToSqlAstConverter.AdditionalInsertValues additionalInsertValues = sqmConverter.visitInsertionTargetPaths((assignable, columnReferences) -> {
        // Find a matching cte table column and set that at the current index
        for (SqmCteTableColumn column : cteTable.getColumns()) {
            if (column.getType() == ((Expression) assignable).getExpressionType()) {
                insertStatement.addTargetColumnReferences(columnReferences);
                targetPathSqmCteColumns.add(column);
                targetPathColumns.add(new AbstractMap.SimpleEntry<>(column, new Assignment(assignable, (Expression) assignable)));
                return;
            }
        }
        throw new IllegalStateException("Couldn't find matching cte column for: " + ((Expression) assignable).getExpressionType());
    }, sqmInsertStatement, entityDescriptor, insertingTableGroup, (sqmParameter, mappingType, jdbcParameters) -> {
        parameterResolutions.computeIfAbsent(sqmParameter, k -> new ArrayList<>(1)).add(jdbcParameters);
        paramTypeResolutions.put(sqmParameter, mappingType);
    });
    final boolean assignsId = targetPathSqmCteColumns.contains(cteTable.getColumns().get(0));
    // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    // Create the statement that represent the source for the entity cte
    final Stack<SqlAstProcessingState> processingStateStack = sqmConverter.getProcessingStateStack();
    final SqlAstProcessingState oldState = processingStateStack.pop();
    final Statement queryStatement;
    if (sqmInsertStatement instanceof SqmInsertSelectStatement) {
        final QueryPart queryPart = sqmConverter.visitQueryPart(((SqmInsertSelectStatement<?>) sqmInsertStatement).getSelectQueryPart());
        queryPart.visitQuerySpecs(querySpec -> {
            // in which case we will fill the row_number column instead of the id column
            if (additionalInsertValues.applySelections(querySpec, sessionFactory)) {
                final SqmCteTableColumn rowNumberColumn = cteTable.getColumns().get(cteTable.getColumns().size() - 1);
                final ColumnReference columnReference = new ColumnReference((String) null, rowNumberColumn.getColumnName(), false, null, null, (JdbcMapping) rowNumberColumn.getType(), sessionFactory);
                insertStatement.getTargetColumnReferences().set(insertStatement.getTargetColumnReferences().size() - 1, columnReference);
                targetPathSqmCteColumns.set(targetPathSqmCteColumns.size() - 1, rowNumberColumn);
            }
            if (!assignsId && entityDescriptor.getIdentifierGenerator() instanceof PostInsertIdentifierGenerator) {
                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())));
            }
        });
        queryStatement = new SelectStatement(queryPart);
    } else {
        final List<SqmValues> sqmValuesList = ((SqmInsertValuesStatement<?>) sqmInsertStatement).getValuesList();
        final List<Values> valuesList = new ArrayList<>(sqmValuesList.size());
        for (SqmValues sqmValues : sqmValuesList) {
            final Values values = sqmConverter.visitValues(sqmValues);
            additionalInsertValues.applyValues(values);
            valuesList.add(values);
        }
        final QuerySpec querySpec = new QuerySpec(true);
        final NavigablePath navigablePath = new NavigablePath(entityDescriptor.getRootPathName());
        final List<String> columnNames = new ArrayList<>(targetPathColumns.size());
        for (Map.Entry<SqmCteTableColumn, Assignment> entry : targetPathColumns) {
            for (ColumnReference columnReference : entry.getValue().getAssignable().getColumnReferences()) {
                columnNames.add(columnReference.getColumnExpression());
                querySpec.getSelectClause().addSqlSelection(new SqlSelectionImpl(1, 0, columnReference));
            }
        }
        final ValuesTableGroup valuesTableGroup = new ValuesTableGroup(navigablePath, entityDescriptor.getEntityPersister(), valuesList, insertingTableGroup.getPrimaryTableReference().getIdentificationVariable(), columnNames, true, factory);
        querySpec.getFromClause().addRoot(valuesTableGroup);
        queryStatement = new SelectStatement(querySpec);
    }
    processingStateStack.push(oldState);
    sqmConverter.pruneTableGroupJoins();
    if (!assignsId && entityDescriptor.getIdentifierGenerator() instanceof PostInsertIdentifierGenerator) {
        // Add the row number to the assignments
        final SqmCteTableColumn rowNumberColumn = cteTable.getColumns().get(cteTable.getColumns().size() - 1);
        final ColumnReference columnReference = new ColumnReference((String) null, rowNumberColumn.getColumnName(), false, null, null, (JdbcMapping) rowNumberColumn.getType(), sessionFactory);
        insertStatement.getTargetColumnReferences().add(columnReference);
        targetPathSqmCteColumns.add(rowNumberColumn);
    }
    final CteTable entityCteTable = BaseSqmToSqlAstConverter.createCteTable(getCteTable(), targetPathSqmCteColumns, factory);
    // Create the main query spec that will return the count of rows
    final QuerySpec querySpec = new QuerySpec(true, 1);
    final List<DomainResult<?>> domainResults = new ArrayList<>(1);
    final SelectStatement statement = new SelectStatement(querySpec, domainResults);
    final CteStatement entityCte;
    if (additionalInsertValues.requiresRowNumberIntermediate()) {
        final CteTable fullEntityCteTable = BaseSqmToSqlAstConverter.createCteTable(getCteTable(), factory);
        final String baseTableName = "base_" + entityCteTable.getTableExpression();
        final CteStatement baseEntityCte = new CteStatement(entityCteTable.withName(baseTableName), queryStatement, // The query cte will be reused multiple times
        CteMaterialization.MATERIALIZED);
        statement.addCteStatement(baseEntityCte);
        final CteColumn rowNumberColumn = fullEntityCteTable.getCteColumns().get(fullEntityCteTable.getCteColumns().size() - 1);
        final ColumnReference rowNumberColumnReference = new ColumnReference("e", rowNumberColumn.getColumnExpression(), false, null, null, rowNumberColumn.getJdbcMapping(), factory);
        final CteColumn idColumn = fullEntityCteTable.getCteColumns().get(0);
        final BasicValuedMapping idType = (BasicValuedMapping) idColumn.getJdbcMapping();
        final Optimizer optimizer = ((OptimizableGenerator) entityDescriptor.getIdentifierGenerator()).getOptimizer();
        final BasicValuedMapping integerType = (BasicValuedMapping) rowNumberColumn.getJdbcMapping();
        final Expression rowNumberMinusOneModuloIncrement = new BinaryArithmeticExpression(new BinaryArithmeticExpression(rowNumberColumnReference, BinaryArithmeticOperator.SUBTRACT, new QueryLiteral<>(1, (BasicValuedMapping) rowNumberColumn.getJdbcMapping()), integerType), BinaryArithmeticOperator.MODULO, new QueryLiteral<>(optimizer.getIncrementSize(), integerType), integerType);
        // Create the CTE that fetches a new sequence value for the row numbers that need it
        {
            final QuerySpec rowsWithSequenceQuery = new QuerySpec(true);
            rowsWithSequenceQuery.getFromClause().addRoot(new CteTableGroup(new NamedTableReference(baseTableName, "e", false, factory)));
            rowsWithSequenceQuery.getSelectClause().addSqlSelection(new SqlSelectionImpl(1, 0, rowNumberColumnReference));
            final String fragment = ((BulkInsertionCapableIdentifierGenerator) entityDescriptor.getIdentifierGenerator()).determineBulkInsertionIdentifierGenerationSelectFragment(sessionFactory.getSqlStringGenerationContext());
            rowsWithSequenceQuery.getSelectClause().addSqlSelection(new SqlSelectionImpl(2, 1, new SelfRenderingSqlFragmentExpression(fragment)));
            rowsWithSequenceQuery.applyPredicate(new ComparisonPredicate(rowNumberMinusOneModuloIncrement, ComparisonOperator.EQUAL, new QueryLiteral<>(0, integerType)));
            final CteTable rowsWithSequenceCteTable = new CteTable(ROW_NUMBERS_WITH_SEQUENCE_VALUE, Arrays.asList(rowNumberColumn, idColumn), sessionFactory);
            final SelectStatement rowsWithSequenceStatement = new SelectStatement(rowsWithSequenceQuery);
            final CteStatement rowsWithSequenceCte = new CteStatement(rowsWithSequenceCteTable, rowsWithSequenceStatement, // The query cte will be reused multiple times
            CteMaterialization.MATERIALIZED);
            statement.addCteStatement(rowsWithSequenceCte);
        }
        // Create the CTE that represents the entity cte
        {
            final QuerySpec entityQuery = new QuerySpec(true);
            final NavigablePath navigablePath = new NavigablePath(baseTableName);
            final TableGroup baseTableGroup = new TableGroupImpl(navigablePath, null, new NamedTableReference(baseTableName, "e", false, factory), null);
            final TableGroup rowsWithSequenceTableGroup = new CteTableGroup(new NamedTableReference(ROW_NUMBERS_WITH_SEQUENCE_VALUE, "t", false, factory));
            baseTableGroup.addTableGroupJoin(new TableGroupJoin(rowsWithSequenceTableGroup.getNavigablePath(), SqlAstJoinType.LEFT, rowsWithSequenceTableGroup, new ComparisonPredicate(new BinaryArithmeticExpression(rowNumberColumnReference, BinaryArithmeticOperator.SUBTRACT, rowNumberMinusOneModuloIncrement, integerType), ComparisonOperator.EQUAL, new ColumnReference("t", rowNumberColumn.getColumnExpression(), false, null, null, rowNumberColumn.getJdbcMapping(), factory))));
            entityQuery.getFromClause().addRoot(baseTableGroup);
            entityQuery.getSelectClause().addSqlSelection(new SqlSelectionImpl(1, 0, new BinaryArithmeticExpression(new ColumnReference("t", idColumn.getColumnExpression(), false, null, null, idColumn.getJdbcMapping(), factory), BinaryArithmeticOperator.ADD, new BinaryArithmeticExpression(rowNumberColumnReference, BinaryArithmeticOperator.SUBTRACT, new ColumnReference("t", rowNumberColumn.getColumnExpression(), false, null, null, rowNumberColumn.getJdbcMapping(), factory), integerType), idType)));
            final CteTable finalEntityCteTable;
            if (targetPathSqmCteColumns.contains(getCteTable().getColumns().get(0))) {
                finalEntityCteTable = entityCteTable;
            } else {
                targetPathSqmCteColumns.add(0, getCteTable().getColumns().get(0));
                finalEntityCteTable = BaseSqmToSqlAstConverter.createCteTable(getCteTable(), targetPathSqmCteColumns, factory);
            }
            final List<CteColumn> cteColumns = finalEntityCteTable.getCteColumns();
            for (int i = 1; i < cteColumns.size(); i++) {
                final CteColumn cteColumn = cteColumns.get(i);
                entityQuery.getSelectClause().addSqlSelection(new SqlSelectionImpl(i + 1, i, new ColumnReference("e", cteColumn.getColumnExpression(), false, null, null, cteColumn.getJdbcMapping(), factory)));
            }
            final SelectStatement entityStatement = new SelectStatement(entityQuery);
            entityCte = new CteStatement(finalEntityCteTable, entityStatement, // The query cte will be reused multiple times
            CteMaterialization.MATERIALIZED);
            statement.addCteStatement(entityCte);
        }
    } else if (!assignsId && entityDescriptor.getIdentifierGenerator() instanceof PostInsertIdentifierGenerator) {
        final String baseTableName = "base_" + entityCteTable.getTableExpression();
        final CteStatement baseEntityCte = new CteStatement(entityCteTable.withName(baseTableName), queryStatement, // The query cte will be reused multiple times
        CteMaterialization.MATERIALIZED);
        statement.addCteStatement(baseEntityCte);
        targetPathSqmCteColumns.add(0, cteTable.getColumns().get(0));
        final CteTable finalEntityCteTable = BaseSqmToSqlAstConverter.createCteTable(getCteTable(), targetPathSqmCteColumns, factory);
        final QuerySpec finalQuerySpec = new QuerySpec(true);
        final SelectStatement finalQueryStatement = new SelectStatement(finalQuerySpec);
        entityCte = new CteStatement(finalEntityCteTable, finalQueryStatement, // The query cte will be reused multiple times
        CteMaterialization.MATERIALIZED);
    } else {
        entityCte = new CteStatement(entityCteTable, queryStatement, // The query cte will be reused multiple times
        CteMaterialization.MATERIALIZED);
        statement.addCteStatement(entityCte);
    }
    // Add all CTEs
    final String baseInsertCte = addDmlCtes(statement, entityCte, targetPathColumns, assignsId, sqmConverter, parameterResolutions, factory);
    final Expression count = createCountStar(factory, sqmConverter);
    domainResults.add(new BasicResult(0, null, ((SqlExpressible) count).getJdbcMapping().getJavaTypeDescriptor()));
    querySpec.getSelectClause().addSqlSelection(new SqlSelectionImpl(1, 0, count));
    querySpec.getFromClause().addRoot(new CteTableGroup(new NamedTableReference(// We want to return the insertion count of the base table
    baseInsertCte, CTE_TABLE_IDENTIFIER, false, factory)));
    // Execute the statement
    final JdbcServices jdbcServices = factory.getJdbcServices();
    final SqlAstTranslator<JdbcSelect> translator = jdbcServices.getJdbcEnvironment().getSqlAstTranslatorFactory().buildSelectTranslator(factory, statement);
    final JdbcParameterBindings jdbcParameterBindings = SqmUtil.createJdbcParameterBindings(executionContext.getQueryParameterBindings(), domainParameterXref, SqmUtil.generateJdbcParamsXref(domainParameterXref, sqmConverter), factory.getRuntimeMetamodels().getMappingMetamodel(), navigablePath -> sqmConverter.getMutatingTableGroup(), new SqmParameterMappingModelResolutionAccess() {

        @Override
        @SuppressWarnings("unchecked")
        public <T> MappingModelExpressible<T> getResolvedMappingModelType(SqmParameter<T> parameter) {
            return (MappingModelExpressible<T>) paramTypeResolutions.get(parameter);
        }
    }, executionContext.getSession());
    final JdbcSelect select = translator.translate(jdbcParameterBindings, executionContext.getQueryOptions());
    executionContext.getSession().autoFlushIfRequired(select.getAffectedTableNames());
    List<Object> list = jdbcServices.getJdbcSelectExecutor().list(select, jdbcParameterBindings, SqmJdbcExecutionContextAdapter.omittingLockingAndPaging(executionContext), row -> row[0], ListResultsConsumer.UniqueSemantic.NONE);
    return ((Number) list.get(0)).intValue();
}

Example 2 with OptimizableGenerator

use of org.hibernate.id.OptimizableGenerator 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 OptimizableGenerator

use of org.hibernate.id.OptimizableGenerator in project hibernate-orm by hibernate.

the class TemporaryTable method createEntityTable.

public static TemporaryTable createEntityTable(EntityMappingType entityDescriptor, Function<String, String> temporaryTableNameAdjuster, Dialect dialect, RuntimeModelCreationContext runtimeModelCreationContext) {
    return new TemporaryTable(entityDescriptor, temporaryTableNameAdjuster, dialect, temporaryTable -> {
        final List<TemporaryTableColumn> columns = new ArrayList<>();
        final PersistentClass entityBinding = runtimeModelCreationContext.getBootModel().getEntityBinding(entityDescriptor.getEntityName());
        final IdentifierGenerator identifierGenerator = entityDescriptor.getEntityPersister().getIdentifierGenerator();
        final boolean identityColumn = identifierGenerator instanceof PostInsertIdentifierGenerator;
        final boolean hasOptimizer;
        if (identityColumn) {
            hasOptimizer = false;
            final Iterator<JdbcMapping> jdbcMappings = entityDescriptor.getIdentifierMapping().getJdbcMappings().iterator();
            for (Column column : entityBinding.getKey().getColumns()) {
                final JdbcMapping jdbcMapping = jdbcMappings.next();
                columns.add(new TemporaryTableColumn(temporaryTable, ENTITY_TABLE_IDENTITY_COLUMN, jdbcMapping, column.getSqlType(dialect, runtimeModelCreationContext.getMetadata()) + " " + dialect.getIdentityColumnSupport().getIdentityColumnString(column.getSqlTypeCode(runtimeModelCreationContext.getMetadata())), // column.isNullable()
                true, true));
            }
        } else {
            if (identifierGenerator instanceof OptimizableGenerator) {
                final Optimizer optimizer = ((OptimizableGenerator) identifierGenerator).getOptimizer();
                hasOptimizer = optimizer != null && optimizer.getIncrementSize() > 1;
            } else {
                hasOptimizer = false;
            }
        }
        final Iterator<JdbcMapping> jdbcMappings = entityDescriptor.getIdentifierMapping().getJdbcMappings().iterator();
        for (Column column : entityBinding.getKey().getColumns()) {
            final JdbcMapping jdbcMapping = jdbcMappings.next();
            columns.add(new TemporaryTableColumn(temporaryTable, column.getText(dialect), jdbcMapping, column.getSqlType(dialect, runtimeModelCreationContext.getMetadata()), // We have to set the identity column after the root table insert
            column.isNullable() || identityColumn || hasOptimizer, !identityColumn && !hasOptimizer));
        }
        final EntityDiscriminatorMapping discriminatorMapping = entityDescriptor.getDiscriminatorMapping();
        if (entityBinding.getDiscriminator() != null && !discriminatorMapping.isFormula()) {
            final Column discriminator = entityBinding.getDiscriminator().getColumns().get(0);
            columns.add(new TemporaryTableColumn(temporaryTable, discriminator.getText(dialect), discriminatorMapping.getJdbcMapping(), discriminator.getSqlType(dialect, runtimeModelCreationContext.getMetadata()), // We have to set the identity column after the root table insert
            discriminator.isNullable()));
        }
        // Collect all columns for all entity subtype attributes
        entityDescriptor.visitSubTypeAttributeMappings(attribute -> {
            if (!(attribute instanceof PluralAttributeMapping)) {
                final SimpleValue value = (SimpleValue) entityBinding.getSubclassProperty(attribute.getAttributeName()).getValue();
                final Iterator<Selectable> columnIterator = value.getConstraintColumnIterator();
                attribute.forEachSelectable((columnIndex, selection) -> {
                    final Selectable selectable = columnIterator.next();
                    if (selectable instanceof Column) {
                        final Column column = (Column) selectable;
                        columns.add(new TemporaryTableColumn(temporaryTable, selectable.getText(dialect), selection.getJdbcMapping(), column.getSqlType(dialect, runtimeModelCreationContext.getMetadata()), // Treat regular temporary table columns as nullable for simplicity
                        true));
                    }
                });
            }
        });
        if (hasOptimizer) {
            // We add a special row number column that we can use to identify and join rows
            final BasicType<Integer> integerBasicType = entityDescriptor.getEntityPersister().getFactory().getTypeConfiguration().getBasicTypeForJavaType(Integer.class);
            final String rowNumberType;
            if (dialect.supportsWindowFunctions()) {
                rowNumberType = dialect.getTypeName(integerBasicType.getJdbcType().getJdbcTypeCode(), dialect.getSizeStrategy().resolveSize(integerBasicType.getJdbcType(), integerBasicType.getJavaTypeDescriptor(), null, null, null));
            } else if (dialect.getIdentityColumnSupport().supportsIdentityColumns()) {
                rowNumberType = dialect.getTypeName(integerBasicType.getJdbcType().getJdbcTypeCode(), dialect.getSizeStrategy().resolveSize(integerBasicType.getJdbcType(), integerBasicType.getJavaTypeDescriptor(), null, null, null)) + " " + dialect.getIdentityColumnSupport().getIdentityColumnString(integerBasicType.getJdbcType().getJdbcTypeCode());
            } else {
                LOG.multiTableInsertNotAvailable(entityBinding.getEntityName());
                rowNumberType = dialect.getTypeName(integerBasicType.getJdbcType().getJdbcTypeCode(), dialect.getSizeStrategy().resolveSize(integerBasicType.getJdbcType(), integerBasicType.getJavaTypeDescriptor(), null, null, null));
            }
            columns.add(new TemporaryTableColumn(temporaryTable, "rn_", integerBasicType, rowNumberType, false, true));
        }
        return columns;
    });
}

Example 4 with OptimizableGenerator

use of org.hibernate.id.OptimizableGenerator in project hibernate-orm by hibernate.

the class AbstractEntityPersister method prepareMappingModel.

@Override
public void prepareMappingModel(MappingModelCreationProcess creationProcess) {
    if (identifierMapping != null) {
        return;
    }
    final RuntimeModelCreationContext creationContext = creationProcess.getCreationContext();
    final PersistentClass bootEntityDescriptor = creationContext.getBootModel().getEntityBinding(getEntityName());
    // EntityMappingType rootEntityDescriptor;
    if (superMappingType != null) {
        ((InFlightEntityMappingType) superMappingType).prepareMappingModel(creationProcess);
        if (shouldProcessSuperMapping()) {
            this.discriminatorMapping = superMappingType.getDiscriminatorMapping();
            this.identifierMapping = superMappingType.getIdentifierMapping();
            this.naturalIdMapping = superMappingType.getNaturalIdMapping();
            this.versionMapping = superMappingType.getVersionMapping();
            this.rowIdMapping = superMappingType.getRowIdMapping();
        } else {
            prepareMappingModel(creationProcess, bootEntityDescriptor);
        }
    // rootEntityDescriptor = superMappingType.getRootEntityDescriptor();
    } else {
        prepareMappingModel(creationProcess, bootEntityDescriptor);
    // rootEntityDescriptor = this;
    }
    final EntityMetamodel currentEntityMetamodel = this.getEntityMetamodel();
    int stateArrayPosition = getStateArrayInitialPosition(creationProcess);
    NonIdentifierAttribute[] properties = currentEntityMetamodel.getProperties();
    for (int i = 0; i < currentEntityMetamodel.getPropertySpan(); i++) {
        final NonIdentifierAttribute runtimeAttrDefinition = properties[i];
        final Property bootProperty = bootEntityDescriptor.getProperty(runtimeAttrDefinition.getName());
        if (superMappingType == null || superMappingType.findAttributeMapping(bootProperty.getName()) == null) {
            declaredAttributeMappings.put(runtimeAttrDefinition.getName(), generateNonIdAttributeMapping(runtimeAttrDefinition, bootProperty, stateArrayPosition++, creationProcess));
        }
    // else {
    // its defined on the supertype, skip it here
    // }
    }
    getAttributeMappings();
    postProcessAttributeMappings(creationProcess, bootEntityDescriptor);
    final ReflectionOptimizer reflectionOptimizer = representationStrategy.getReflectionOptimizer();
    if (reflectionOptimizer != null) {
        accessOptimizer = reflectionOptimizer.getAccessOptimizer();
    } else {
        accessOptimizer = null;
    }
    // register a callback for after all `#prepareMappingModel` calls have finished.  here we want to delay the
    // generation of `staticFetchableList` because we need to wait until after all sub-classes have had their
    // `#prepareMappingModel` called (and their declared attribute mappings resolved)
    creationProcess.registerInitializationCallback("Entity(" + getEntityName() + ") `staticFetchableList` generator", () -> {
        if (hasInsertGeneratedProperties()) {
            insertGeneratedValuesProcessor = createGeneratedValuesProcessor(GenerationTiming.INSERT);
        }
        if (hasUpdateGeneratedProperties()) {
            updateGeneratedValuesProcessor = createGeneratedValuesProcessor(GenerationTiming.ALWAYS);
        }
        staticFetchableList = new ArrayList<>(attributeMappings.size());
        visitSubTypeAttributeMappings(attributeMapping -> staticFetchableList.add(attributeMapping));
        return true;
    });
    boolean needsMultiTableInsert = hasMultipleTables();
    if (needsMultiTableInsert) {
        creationProcess.registerInitializationCallback("Entity(" + getEntityName() + ") `sqmMultiTableMutationStrategy` interpretation", () -> {
            sqmMultiTableMutationStrategy = interpretSqmMultiTableStrategy(this, creationProcess);
            if (sqmMultiTableMutationStrategy == null) {
                return false;
            }
            sqmMultiTableMutationStrategy.prepare(creationProcess, creationContext.getSessionFactory().getJdbcServices().getBootstrapJdbcConnectionAccess());
            return true;
        });
    } else {
        sqmMultiTableMutationStrategy = null;
    }
    if (!needsMultiTableInsert && getIdentifierGenerator() instanceof BulkInsertionCapableIdentifierGenerator) {
        if (getIdentifierGenerator() instanceof OptimizableGenerator) {
            final Optimizer optimizer = ((OptimizableGenerator) getIdentifierGenerator()).getOptimizer();
            needsMultiTableInsert = optimizer != null && optimizer.getIncrementSize() > 1;
        }
    }
    if (needsMultiTableInsert) {
        creationProcess.registerInitializationCallback("Entity(" + getEntityName() + ") `sqmMultiTableInsertStrategy` interpretation", () -> {
            sqmMultiTableInsertStrategy = interpretSqmMultiTableInsertStrategy(this, creationProcess);
            if (sqmMultiTableInsertStrategy == null) {
                return false;
            }
            sqmMultiTableInsertStrategy.prepare(creationProcess, creationContext.getSessionFactory().getJdbcServices().getBootstrapJdbcConnectionAccess());
            return true;
        });
    } else {
        sqmMultiTableInsertStrategy = null;
    }
}

Example 5 with OptimizableGenerator

use of org.hibernate.id.OptimizableGenerator in project hibernate-orm by hibernate.

the class InsertExecutionDelegate method insertTable.

private void insertTable(String tableExpression, String[] keyColumns, boolean nullableTable, ExecutionContext executionContext) {
    final TableReference updatingTableReference = updatingTableGroup.getTableReference(updatingTableGroup.getNavigablePath(), tableExpression, true, true);
    final List<Assignment> assignments = assignmentsByTable.get(updatingTableReference);
    if (nullableTable && (assignments == null || assignments.isEmpty())) {
        // no assignments for this table - skip it
        return;
    }
    final NamedTableReference dmlTargetTableReference = resolveUnionTableReference(updatingTableReference, tableExpression);
    final QuerySpec querySpec = new QuerySpec(true);
    final TableGroupImpl temporaryTableGroup = new TableGroupImpl(updatingTableGroup.getNavigablePath(), null, new NamedTableReference(insertStatement.getTargetTable().getTableExpression(), updatingTableReference.getIdentificationVariable(), false, sessionFactory), entityDescriptor);
    querySpec.getFromClause().addRoot(temporaryTableGroup);
    final InsertStatement insertStatement = new InsertStatement(dmlTargetTableReference);
    insertStatement.setSourceSelectStatement(querySpec);
    if (assignments != null && !assignments.isEmpty()) {
        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 String targetKeyColumnName = keyColumns[0];
    final AbstractEntityPersister entityPersister = (AbstractEntityPersister) entityDescriptor.getEntityPersister();
    final IdentifierGenerator identifierGenerator = entityPersister.getIdentifierGenerator();
    final boolean needsKeyInsert;
    if (identifierGenerator instanceof PostInsertIdentifierGenerator) {
        needsKeyInsert = true;
    } else if (identifierGenerator instanceof OptimizableGenerator) {
        final Optimizer optimizer = ((OptimizableGenerator) identifierGenerator).getOptimizer();
        // If the generator uses an optimizer, we have to generate the identifiers for the new rows
        needsKeyInsert = optimizer != null && optimizer.getIncrementSize() > 1;
    } else {
        needsKeyInsert = false;
    }
    if (needsKeyInsert && insertStatement.getTargetColumnReferences().stream().noneMatch(c -> targetKeyColumnName.equals(c.getColumnExpression()))) {
        final BasicEntityIdentifierMapping identifierMapping = (BasicEntityIdentifierMapping) entityDescriptor.getIdentifierMapping();
        insertStatement.addTargetColumnReferences(new ColumnReference(dmlTargetTableReference.getIdentificationVariable(), targetKeyColumnName, false, null, null, identifierMapping.getJdbcMapping(), sessionFactory));
        querySpec.getSelectClause().addSqlSelection(new SqlSelectionImpl(1, 0, new ColumnReference(updatingTableReference.getIdentificationVariable(), identifierMapping, sessionFactory)));
    }
    final JdbcServices jdbcServices = sessionFactory.getJdbcServices();
    final JdbcInsert jdbcInsert = jdbcServices.getJdbcEnvironment().getSqlAstTranslatorFactory().buildInsertTranslator(sessionFactory, insertStatement).translate(null, executionContext.getQueryOptions());
    jdbcServices.getJdbcMutationExecutor().execute(jdbcInsert, JdbcParameterBindings.NO_BINDINGS, sql -> executionContext.getSession().getJdbcCoordinator().getStatementPreparer().prepareStatement(sql), (integer, preparedStatement) -> {
    }, executionContext);
}