Examples with DomainResult org.hibernate.sql.results.graph.DomainResult used on opensource projects

Example 11 with DomainResult

use of org.hibernate.sql.results.graph.DomainResult in project hibernate-orm by hibernate.

the class JdbcSelectExecutorStandardImpl method doExecuteQuery.

private <T, R> T doExecuteQuery(JdbcSelect jdbcSelect, JdbcParameterBindings jdbcParameterBindings, ExecutionContext executionContext, RowTransformer<R> rowTransformer, Function<String, PreparedStatement> statementCreator, ResultsConsumer<T, R> resultsConsumer) {
    final DeferredResultSetAccess deferredResultSetAccess = new DeferredResultSetAccess(jdbcSelect, jdbcParameterBindings, executionContext, statementCreator);
    final JdbcValues jdbcValues = resolveJdbcValuesSource(executionContext.getQueryIdentifier(deferredResultSetAccess.getFinalSql()), jdbcSelect, resultsConsumer.canResultsBeCached(), executionContext, deferredResultSetAccess);
    if (rowTransformer == null) {
        @SuppressWarnings("unchecked") final TupleTransformer<R> tupleTransformer = (TupleTransformer<R>) executionContext.getQueryOptions().getTupleTransformer();
        if (tupleTransformer == null) {
            rowTransformer = RowTransformerPassThruImpl.instance();
        } else {
            final List<DomainResult<?>> domainResults = jdbcValues.getValuesMapping().getDomainResults();
            final String[] aliases = new String[domainResults.size()];
            for (int i = 0; i < domainResults.size(); i++) {
                aliases[i] = domainResults.get(i).getResultVariable();
            }
            rowTransformer = new RowTransformerTupleTransformerAdapter<>(aliases, tupleTransformer);
        }
    }
    final boolean stats;
    long startTime = 0;
    final StatisticsImplementor statistics = executionContext.getSession().getFactory().getStatistics();
    if (executionContext.hasQueryExecutionToBeAddedToStatistics() && jdbcValues instanceof JdbcValuesResultSetImpl) {
        stats = statistics.isStatisticsEnabled();
        if (stats) {
            startTime = System.nanoTime();
        }
    } else {
        stats = false;
    }
    /*
		 * Processing options effectively are only used for entity loading.  Here we don't need these values.
		 */
    final JdbcValuesSourceProcessingOptions processingOptions = new JdbcValuesSourceProcessingOptions() {

        @Override
        public Object getEffectiveOptionalObject() {
            return executionContext.getEntityInstance();
        }

        @Override
        public String getEffectiveOptionalEntityName() {
            return null;
        }

        @Override
        public Object getEffectiveOptionalId() {
            return executionContext.getEntityId();
        }

        @Override
        public boolean shouldReturnProxies() {
            return true;
        }
    };
    final JdbcValuesSourceProcessingStateStandardImpl valuesProcessingState = new JdbcValuesSourceProcessingStateStandardImpl(executionContext, processingOptions, executionContext::registerLoadingEntityEntry);
    final RowReader<R> rowReader = ResultsHelper.createRowReader(executionContext, // because the EntityEntrys would already have the desired lock mode
    deferredResultSetAccess.usesFollowOnLocking() ? LockOptions.NONE : executionContext.getQueryOptions().getLockOptions(), rowTransformer, jdbcValues);
    final RowProcessingStateStandardImpl rowProcessingState = new RowProcessingStateStandardImpl(valuesProcessingState, executionContext, rowReader, jdbcValues);
    final T result = resultsConsumer.consume(jdbcValues, executionContext.getSession(), processingOptions, valuesProcessingState, rowProcessingState, rowReader);
    if (stats) {
        final long endTime = System.nanoTime();
        final long milliseconds = TimeUnit.MILLISECONDS.convert(endTime - startTime, TimeUnit.NANOSECONDS);
        statistics.queryExecuted(executionContext.getQueryIdentifier(jdbcSelect.getSql()), getResultSize(result), milliseconds);
    }
    return result;
}

Example 12 with DomainResult

use of org.hibernate.sql.results.graph.DomainResult in project hibernate-orm by hibernate.

the class SimpleForeignKeyDescriptor method createDomainResult.

private <T> DomainResult<T> createDomainResult(NavigablePath navigablePath, TableGroup tableGroup, SelectableMapping selectableMapping, DomainResultCreationState creationState) {
    final SqlAstCreationState sqlAstCreationState = creationState.getSqlAstCreationState();
    final SqlExpressionResolver sqlExpressionResolver = sqlAstCreationState.getSqlExpressionResolver();
    final TableReference tableReference = tableGroup.resolveTableReference(navigablePath.append(getTargetPart().getFetchableName()), selectableMapping.getContainingTableExpression());
    final String identificationVariable = tableReference.getIdentificationVariable();
    final SqlSelection sqlSelection = sqlExpressionResolver.resolveSqlSelection(sqlExpressionResolver.resolveSqlExpression(SqlExpressionResolver.createColumnReferenceKey(tableReference, selectableMapping.getSelectionExpression()), s -> new ColumnReference(identificationVariable, selectableMapping, creationState.getSqlAstCreationState().getCreationContext().getSessionFactory())), selectableMapping.getJdbcMapping().getJavaTypeDescriptor(), sqlAstCreationState.getCreationContext().getSessionFactory().getTypeConfiguration());
    // noinspection unchecked
    return new BasicResult<T>(sqlSelection.getValuesArrayPosition(), null, selectableMapping.getJdbcMapping().getJavaTypeDescriptor());
}

Example 13 with DomainResult

use of org.hibernate.sql.results.graph.DomainResult in project hibernate-orm by hibernate.

the class DynamicResultBuilderAttribute method buildResult.

@Override
public DomainResult<?> buildResult(JdbcValuesMetadata jdbcResultsMetadata, int resultPosition, BiFunction<String, String, DynamicFetchBuilderLegacy> legacyFetchResolver, DomainResultCreationState domainResultCreationState) {
    // todo (6.0) : TableGroups + `attributeMapping#buldResult`
    final SqlExpressionResolver sqlExpressionResolver = domainResultCreationState.getSqlAstCreationState().getSqlExpressionResolver();
    final SqlSelection sqlSelection = sqlExpressionResolver.resolveSqlSelection(sqlExpressionResolver.resolveSqlExpression(columnAlias, state -> {
        final int resultSetPosition = jdbcResultsMetadata.resolveColumnPosition(columnAlias);
        final int valuesArrayPosition = resultSetPosition - 1;
        return new ResultSetMappingSqlSelection(valuesArrayPosition, attributeMapping);
    }), attributeMapping.getJavaType(), null, domainResultCreationState.getSqlAstCreationState().getCreationContext().getSessionFactory().getTypeConfiguration());
    return new BasicResult<>(sqlSelection.getValuesArrayPosition(), columnAlias, attributeMapping.getJavaType(), attributeMapping.getValueConverter());
}

Example 14 with DomainResult

use of org.hibernate.sql.results.graph.DomainResult in project hibernate-orm by hibernate.

the class ScrollableResultsConsumer method containsCollectionFetches.

private boolean containsCollectionFetches(JdbcValuesMapping valuesMapping) {
    final List<DomainResult<?>> domainResults = valuesMapping.getDomainResults();
    for (DomainResult domainResult : domainResults) {
        if (domainResult instanceof EntityResult) {
            EntityResult entityResult = (EntityResult) domainResult;
            final List<Fetch> fetches = entityResult.getFetches();
            for (Fetch fetch : fetches) {
                if (fetch instanceof EagerCollectionFetch) {
                    return true;
                }
            }
        }
    }
    return false;
}

Example 15 with DomainResult

use of org.hibernate.sql.results.graph.DomainResult in project hibernate-orm by hibernate.

the class EntityRowIdMappingImpl method createDomainResult.

@Override
public <T> DomainResult<T> createDomainResult(NavigablePath navigablePath, TableGroup tableGroup, String resultVariable, DomainResultCreationState creationState) {
    final SqlAstCreationState sqlAstCreationState = creationState.getSqlAstCreationState();
    final SqlExpressionResolver sqlExpressionResolver = sqlAstCreationState.getSqlExpressionResolver();
    final TableReference columnTableReference = tableGroup.resolveTableReference(navigablePath, tableExpression);
    final SqlSelection sqlSelection = sqlExpressionResolver.resolveSqlSelection(sqlExpressionResolver.resolveSqlExpression(SqlExpressionResolver.createColumnReferenceKey(columnTableReference, rowIdName), sqlAstProcessingState -> new ColumnReference(columnTableReference, rowIdName, false, // having to write a Dialect
    null, null, rowIdType, sqlAstCreationState.getCreationContext().getSessionFactory())), rowIdType.getJavaTypeDescriptor(), null, sqlAstCreationState.getCreationContext().getSessionFactory().getTypeConfiguration());
    return new BasicResult(sqlSelection.getValuesArrayPosition(), resultVariable, rowIdType.getJavaTypeDescriptor(), navigablePath);
}