Examples with SqlAliasBaseConstant org.hibernate.sql.ast.spi.SqlAliasBaseConstant used on opensource projects

Example 6 with SqlAliasBaseConstant

use of org.hibernate.sql.ast.spi.SqlAliasBaseConstant in project hibernate-orm by hibernate.

the class DynamicFetchBuilderLegacy method buildFetch.

@Override
public Fetch buildFetch(FetchParent parent, NavigablePath fetchPath, JdbcValuesMetadata jdbcResultsMetadata, BiFunction<String, String, DynamicFetchBuilderLegacy> legacyFetchResolver, DomainResultCreationState domainResultCreationState) {
    final DomainResultCreationStateImpl creationState = ResultsHelper.impl(domainResultCreationState);
    final TableGroup ownerTableGroup = creationState.getFromClauseAccess().findByAlias(ownerTableAlias);
    final AttributeMapping attributeMapping = parent.getReferencedMappingContainer().findContainingEntityMapping().findDeclaredAttributeMapping(fetchableName);
    final TableGroup tableGroup;
    if (attributeMapping instanceof TableGroupJoinProducer) {
        final SqlAliasBase sqlAliasBase = new SqlAliasBaseConstant(tableAlias);
        final TableGroupJoin tableGroupJoin = ((TableGroupJoinProducer) attributeMapping).createTableGroupJoin(fetchPath, ownerTableGroup, tableAlias, SqlAstJoinType.INNER, true, false, s -> sqlAliasBase, creationState.getSqlExpressionResolver(), creationState.getFromClauseAccess(), creationState.getCreationContext());
        ownerTableGroup.addTableGroupJoin(tableGroupJoin);
        creationState.getFromClauseAccess().registerTableGroup(fetchPath, tableGroup = tableGroupJoin.getJoinedGroup());
    } else {
        tableGroup = ownerTableGroup;
    }
    if (columnNames != null) {
        final ForeignKeyDescriptor keyDescriptor;
        if (attributeMapping instanceof PluralAttributeMapping) {
            final PluralAttributeMapping pluralAttributeMapping = (PluralAttributeMapping) attributeMapping;
            keyDescriptor = pluralAttributeMapping.getKeyDescriptor();
        } else {
            // Not sure if this fetch builder can also be used with other attribute mappings
            assert attributeMapping instanceof ToOneAttributeMapping;
            final ToOneAttributeMapping toOneAttributeMapping = (ToOneAttributeMapping) attributeMapping;
            keyDescriptor = toOneAttributeMapping.getForeignKeyDescriptor();
        }
        if (!columnNames.isEmpty()) {
            keyDescriptor.forEachSelectable((selectionIndex, selectableMapping) -> {
                resolveSqlSelection(columnNames.get(selectionIndex), createColumnReferenceKey(tableGroup.resolveTableReference(selectableMapping.getContainingTableExpression()), selectableMapping.getSelectionExpression()), selectableMapping.getJdbcMapping(), jdbcResultsMetadata, domainResultCreationState);
            });
        }
        // We process the fetch builder such that it contains a resultBuilderEntity before calling this method in ResultSetMappingProcessor
        if (resultBuilderEntity != null) {
            return resultBuilderEntity.buildFetch(parent, attributeMapping, jdbcResultsMetadata, creationState);
        }
    }
    try {
        final NavigablePath currentRelativePath = creationState.getCurrentRelativePath();
        final String prefix;
        if (currentRelativePath == null) {
            prefix = "";
        } else {
            prefix = currentRelativePath.getFullPath().replace(ELEMENT_PREFIX, "").replace(INDEX_PREFIX, "") + ".";
        }
        creationState.pushExplicitFetchMementoResolver(relativePath -> {
            if (relativePath.startsWith(prefix)) {
                return findFetchBuilder(relativePath.substring(prefix.length()));
            }
            return null;
        });
        return parent.generateFetchableFetch(attributeMapping, parent.resolveNavigablePath(attributeMapping), FetchTiming.IMMEDIATE, true, null, domainResultCreationState);
    } finally {
        creationState.popExplicitFetchMementoResolver();
    }
}

Example 7 with SqlAliasBaseConstant

use of org.hibernate.sql.ast.spi.SqlAliasBaseConstant in project hibernate-orm by hibernate.

the class DynamicResultBuilderEntityStandard method buildResultOrFetch.

private <T> T buildResultOrFetch(Function<TableGroup, T> resultOrFetchBuilder, JdbcValuesMetadata jdbcResultsMetadata, DomainResultCreationState domainResultCreationState) {
    final DomainResultCreationStateImpl creationState = impl(domainResultCreationState);
    final FromClauseAccess fromClauseAccess = domainResultCreationState.getSqlAstCreationState().getFromClauseAccess();
    final TableGroup tableGroup = fromClauseAccess.resolveTableGroup(navigablePath, np -> {
        final TableReference tableReference = entityMapping.createPrimaryTableReference(new SqlAliasBaseConstant(tableAlias), creationState.getSqlExpressionResolver(), creationState.getCreationContext());
        if (lockMode != null) {
            domainResultCreationState.getSqlAstCreationState().registerLockMode(tableAlias, lockMode);
        }
        return new TableGroupImpl(navigablePath, tableAlias, tableReference, entityMapping);
    });
    final TableReference tableReference = tableGroup.getPrimaryTableReference();
    final List<String> idColumnAliases;
    final FetchBuilder idFetchBuilder;
    if (this.idColumnNames != null) {
        idColumnAliases = this.idColumnNames;
    } else if ((idFetchBuilder = findIdFetchBuilder()) != null) {
        idColumnAliases = ((DynamicFetchBuilder) idFetchBuilder).getColumnAliases();
    } else {
        idColumnAliases = null;
    }
    if (idColumnAliases != null) {
        final EntityIdentifierMapping identifierMapping = entityMapping.getIdentifierMapping();
        identifierMapping.forEachSelectable((selectionIndex, selectableMapping) -> {
            resolveSqlSelection(idColumnAliases.get(selectionIndex), createColumnReferenceKey(tableReference, selectableMapping.getSelectionExpression()), selectableMapping.getJdbcMapping(), jdbcResultsMetadata, domainResultCreationState);
        });
    }
    if (discriminatorColumnName != null) {
        resolveSqlSelection(discriminatorColumnName, createColumnReferenceKey(tableReference, entityMapping.getDiscriminatorMapping().getSelectionExpression()), entityMapping.getDiscriminatorMapping().getJdbcMapping(), jdbcResultsMetadata, domainResultCreationState);
    }
    try {
        final NavigablePath currentRelativePath = creationState.getCurrentRelativePath();
        final String prefix;
        if (currentRelativePath == null) {
            prefix = "";
        } else {
            prefix = currentRelativePath.getFullPath().replace(ELEMENT_PREFIX, "").replace(INDEX_PREFIX, "") + ".";
        }
        creationState.pushExplicitFetchMementoResolver(relativePath -> {
            if (relativePath.startsWith(prefix)) {
                final int startIndex;
                if (relativePath.regionMatches(prefix.length(), ELEMENT_PREFIX, 0, ELEMENT_PREFIX.length())) {
                    startIndex = prefix.length() + ELEMENT_PREFIX.length();
                } else {
                    startIndex = prefix.length();
                }
                return findFetchBuilder(relativePath.substring(startIndex));
            }
            return null;
        });
        return resultOrFetchBuilder.apply(tableGroup);
    } finally {
        creationState.popExplicitFetchMementoResolver();
    }
}