Examples with ModelPartContainer org.hibernate.metamodel.mapping.ModelPartContainer used on opensource projects

Example 1 with ModelPartContainer

use of org.hibernate.metamodel.mapping.ModelPartContainer in project hibernate-orm by hibernate.

the class ToOneAttributeMapping method createTableGroupJoin.

@Override
public TableGroupJoin createTableGroupJoin(NavigablePath navigablePath, TableGroup lhs, String explicitSourceAlias, SqlAstJoinType requestedJoinType, boolean fetched, boolean addsPredicate, SqlAliasBaseGenerator aliasBaseGenerator, SqlExpressionResolver sqlExpressionResolver, FromClauseAccess fromClauseAccess, SqlAstCreationContext creationContext) {
    // This is vital for the map key property check that comes next
    assert !(lhs instanceof PluralTableGroup);
    TableGroup parentTableGroup = lhs;
    ModelPartContainer parentContainer = lhs.getModelPart();
    StringBuilder embeddablePathSb = null;
    // Traverse up embeddable table groups until we find a table group for a collection part
    while (!(parentContainer instanceof CollectionPart)) {
        if (parentContainer instanceof EmbeddableValuedModelPart) {
            if (embeddablePathSb == null) {
                embeddablePathSb = new StringBuilder();
            }
            embeddablePathSb.insert(0, parentContainer.getPartName() + ".");
            parentTableGroup = fromClauseAccess.findTableGroup(parentTableGroup.getNavigablePath().getParent());
            parentContainer = parentTableGroup.getModelPart();
        } else {
            break;
        }
    }
    final SqlAstJoinType joinType;
    if (requestedJoinType == null) {
        joinType = SqlAstJoinType.INNER;
    } else {
        joinType = requestedJoinType;
    }
    // we check if this attribute is the map key property to reuse the existing index table group
    if (CollectionPart.Nature.ELEMENT.getName().equals(parentTableGroup.getNavigablePath().getUnaliasedLocalName()) && !addsPredicate && (joinType == SqlAstJoinType.INNER || joinType == SqlAstJoinType.LEFT)) {
        final PluralTableGroup pluralTableGroup = (PluralTableGroup) fromClauseAccess.findTableGroup(parentTableGroup.getNavigablePath().getParent());
        final String indexPropertyName = pluralTableGroup.getModelPart().getIndexMetadata().getIndexPropertyName();
        final String pathName;
        if (embeddablePathSb != null) {
            pathName = embeddablePathSb.append(getAttributeName()).toString();
        } else {
            pathName = getAttributeName();
        }
        if (pathName.equals(indexPropertyName)) {
            final TableGroup indexTableGroup = pluralTableGroup.getIndexTableGroup();
            // If this is the map key property, we can reuse the index table group
            initializeIfNeeded(lhs, requestedJoinType, indexTableGroup);
            return new TableGroupJoin(navigablePath, joinType, new MappedByTableGroup(navigablePath, this, indexTableGroup, fetched, pluralTableGroup, (np, tableExpression) -> {
                if (!canUseParentTableGroup) {
                    return false;
                }
                NavigablePath path = np.getParent();
                // Fast path
                if (path != null && navigablePath.equals(path)) {
                    return targetKeyPropertyNames.contains(np.getUnaliasedLocalName()) && identifyingColumnsTableExpression.equals(tableExpression);
                }
                final StringBuilder sb = new StringBuilder(np.getFullPath().length());
                sb.append(np.getUnaliasedLocalName());
                while (path != null && !navigablePath.equals(path)) {
                    sb.insert(0, '.');
                    sb.insert(0, path.getUnaliasedLocalName());
                    path = path.getParent();
                }
                return path != null && navigablePath.equals(path) && targetKeyPropertyNames.contains(sb.toString()) && identifyingColumnsTableExpression.equals(tableExpression);
            }), null);
        }
    }
    final LazyTableGroup lazyTableGroup = createRootTableGroupJoin(navigablePath, lhs, explicitSourceAlias, requestedJoinType, fetched, null, aliasBaseGenerator, sqlExpressionResolver, fromClauseAccess, creationContext);
    final TableGroupJoin join = new TableGroupJoin(navigablePath, joinType, lazyTableGroup, null);
    final TableReference lhsTableReference = lhs.resolveTableReference(navigablePath, identifyingColumnsTableExpression);
    lazyTableGroup.setTableGroupInitializerCallback(tableGroup -> join.applyPredicate(foreignKeyDescriptor.generateJoinPredicate(sideNature == ForeignKeyDescriptor.Nature.TARGET ? lhsTableReference : tableGroup.getPrimaryTableReference(), sideNature == ForeignKeyDescriptor.Nature.TARGET ? tableGroup.getPrimaryTableReference() : lhsTableReference, sqlExpressionResolver, creationContext)));
    return join;
}

Example 2 with ModelPartContainer

use of org.hibernate.metamodel.mapping.ModelPartContainer in project hibernate-orm by hibernate.

the class ColumnReference method getTableReference.

TableReference getTableReference(TableGroup tableGroup) {
    ModelPartContainer modelPart = tableGroup.getModelPart();
    if (modelPart instanceof PluralAttributeMapping) {
        final PluralAttributeMapping pluralAttribute = (PluralAttributeMapping) modelPart;
        if (!pluralAttribute.getCollectionDescriptor().hasManyToManyOrdering()) {
            return tableGroup.getPrimaryTableReference();
        }
        final MappingType elementMappingType = pluralAttribute.getElementDescriptor().getPartMappingType();
        if (elementMappingType instanceof AbstractEntityPersister) {
            final AbstractEntityPersister abstractEntityPersister = (AbstractEntityPersister) elementMappingType;
            final int tableNumber = abstractEntityPersister.determineTableNumberForColumn(columnExpression);
            final String tableName = abstractEntityPersister.getTableName(tableNumber);
            return tableGroup.getTableReference(tableGroup.getNavigablePath(), tableName);
        } else {
            return tableGroup.getPrimaryTableReference();
        }
    }
    return null;
}

Example 3 with ModelPartContainer

use of org.hibernate.metamodel.mapping.ModelPartContainer in project hibernate-orm by hibernate.

the class DiscriminatorSqmPath method interpret.

@Override
public SqmPathInterpretation<?> interpret(SqlAstCreationState sqlAstCreationState, SemanticQueryWalker sqmWalker, boolean jpaQueryComplianceEnabled) {
    assert entityDescriptor.hasSubclasses();
    final TableGroup tableGroup = sqlAstCreationState.getFromClauseAccess().getTableGroup(getLhs().getNavigablePath());
    final ModelPartContainer modelPart = tableGroup.getModelPart();
    final EntityMappingType entityMapping;
    if (modelPart instanceof EntityValuedModelPart) {
        entityMapping = ((EntityValuedModelPart) modelPart).getEntityMappingType();
    } else {
        entityMapping = (EntityMappingType) ((PluralAttributeMapping) modelPart).getElementDescriptor().getPartMappingType();
    }
    return new DiscriminatorPathInterpretation(getNavigablePath(), entityMapping, tableGroup, sqlAstCreationState);
}

Example 4 with ModelPartContainer

use of org.hibernate.metamodel.mapping.ModelPartContainer in project hibernate-orm by hibernate.

the class SqmMappingModelHelper method resolveSqmPath.

private static ModelPart resolveSqmPath(SqmPath<?> sqmPath, MappingMetamodel domainModel, Function<NavigablePath, TableGroup> tableGroupLocator) {
    if (sqmPath instanceof SqmTreatedPath) {
        final SqmTreatedPath treatedPath = (SqmTreatedPath) sqmPath;
        final EntityDomainType treatTargetType = treatedPath.getTreatTarget();
        return domainModel.findEntityDescriptor(treatTargetType.getHibernateEntityName());
    }
    // see if the LHS is treated
    if (sqmPath.getLhs() instanceof SqmTreatedPath) {
        final SqmTreatedPath treatedPath = (SqmTreatedPath) sqmPath.getLhs();
        final EntityDomainType treatTargetType = treatedPath.getTreatTarget();
        final EntityPersister container = domainModel.findEntityDescriptor(treatTargetType.getHibernateEntityName());
        return container.findSubPart(sqmPath.getNavigablePath().getLocalName(), container);
    }
    // Plural path parts are not joined and thus also have no table group
    if (sqmPath instanceof AbstractSqmSpecificPluralPartPath<?>) {
        final TableGroup lhsTableGroup = tableGroupLocator.apply(sqmPath.getLhs().getLhs().getNavigablePath());
        final ModelPartContainer pluralPart = (ModelPartContainer) lhsTableGroup.getModelPart().findSubPart(sqmPath.getLhs().getReferencedPathSource().getPathName(), null);
        final CollectionPart collectionPart = (CollectionPart) pluralPart.findSubPart(sqmPath.getReferencedPathSource().getPathName(), null);
        // as that is the mapping type of the expression
        if (collectionPart instanceof EntityCollectionPart) {
            return ((EntityCollectionPart) collectionPart).getEntityMappingType();
        }
        return collectionPart;
    }
    if (sqmPath.getLhs() == null) {
        final EntityDomainType<?> entityDomainType = (EntityDomainType<?>) sqmPath.getReferencedPathSource();
        return domainModel.findEntityDescriptor(entityDomainType.getHibernateEntityName());
    }
    final TableGroup lhsTableGroup = tableGroupLocator.apply(sqmPath.getLhs().getNavigablePath());
    final ModelPartContainer modelPart;
    if (lhsTableGroup == null) {
        modelPart = (ModelPartContainer) resolveSqmPath(sqmPath.getLhs(), domainModel, tableGroupLocator);
    } else {
        modelPart = lhsTableGroup.getModelPart();
    }
    return modelPart.findSubPart(sqmPath.getReferencedPathSource().getPathName(), null);
}

Example 5 with ModelPartContainer

use of org.hibernate.metamodel.mapping.ModelPartContainer in project hibernate-orm by hibernate.

the class AbstractSqmFrom method resolvePathPart.

@Override
public SqmPath<?> resolvePathPart(String name, boolean isTerminal, SqmCreationState creationState) {
    // Try to resolve an existing attribute join without ON clause
    SqmPath<?> resolvedPath = null;
    ModelPartContainer modelPartContainer = null;
    for (SqmJoin<?, ?> sqmJoin : getSqmJoins()) {
        // We can only match singular joins here, as plural path parts are interpreted like sub-queries
        if (sqmJoin instanceof SqmSingularJoin<?, ?> && name.equals(sqmJoin.getReferencedPathSource().getPathName())) {
            final SqmAttributeJoin<?, ?> attributeJoin = (SqmAttributeJoin<?, ?>) sqmJoin;
            if (attributeJoin.getOn() == null) {
                // todo (6.0): to match the expectation of the JPA spec I think we also have to check
                // that the join type is INNER or the default join type for the attribute,
                // but as far as I understand, in 5.x we expect to ignore this behavior
                // if ( attributeJoin.getSqmJoinType() != SqmJoinType.INNER ) {
                // if ( attributeJoin.getAttribute().isCollection() ) {
                // continue;
                // }
                // if ( modelPartContainer == null ) {
                // modelPartContainer = findModelPartContainer( attributeJoin, creationState );
                // }
                // final TableGroupJoinProducer joinProducer = (TableGroupJoinProducer) modelPartContainer.findSubPart(
                // name,
                // null
                // );
                // if ( attributeJoin.getSqmJoinType().getCorrespondingSqlJoinType() != joinProducer.getDefaultSqlAstJoinType( null ) ) {
                // continue;
                // }
                // }
                resolvedPath = sqmJoin;
                if (attributeJoin.isFetched()) {
                    break;
                }
            }
        }
    }
    if (resolvedPath != null) {
        return resolvedPath;
    }
    final SqmPath<?> sqmPath = get(name);
    creationState.getProcessingStateStack().getCurrent().getPathRegistry().register(sqmPath);
    return sqmPath;
}