Examples with ClassDescriptor org.apache.cayenne.reflect.ClassDescriptor used on opensource projects

Example 21 with ClassDescriptor

use of org.apache.cayenne.reflect.ClassDescriptor in project cayenne by apache.

the class DataObjectDescriptorFactory method createToManyCollectionProperty.

@Override
protected void createToManyCollectionProperty(PersistentDescriptor descriptor, ObjRelationship relationship) {
    ClassDescriptor targetDescriptor = descriptorMap.getDescriptor(relationship.getTargetEntityName());
    descriptor.addDeclaredProperty(new DataObjectToManyProperty(relationship, targetDescriptor, faultFactory.getCollectionFault()));
}

Example 22 with ClassDescriptor

use of org.apache.cayenne.reflect.ClassDescriptor in project cayenne by apache.

the class DataObjectDescriptorFactory method createToManyMapProperty.

@Override
protected void createToManyMapProperty(PersistentDescriptor descriptor, ObjRelationship relationship) {
    ClassDescriptor targetDescriptor = descriptorMap.getDescriptor(relationship.getTargetEntityName());
    Accessor mapKeyAccessor = createMapKeyAccessor(relationship, targetDescriptor);
    descriptor.addDeclaredProperty(new DataObjectToManyMapProperty(relationship, targetDescriptor, faultFactory.getMapFault(mapKeyAccessor), mapKeyAccessor));
}

Example 23 with ClassDescriptor

use of org.apache.cayenne.reflect.ClassDescriptor in project cayenne by apache.

the class ObjectStore method processInvalidatedIDs.

/**
 * @since 1.1
 */
void processInvalidatedIDs(Collection<ObjectId> invalidatedIDs) {
    if (invalidatedIDs != null && !invalidatedIDs.isEmpty()) {
        for (ObjectId oid : invalidatedIDs) {
            DataObject object = (DataObject) getNode(oid);
            if (object == null) {
                continue;
            }
            switch(object.getPersistenceState()) {
                case PersistenceState.COMMITTED:
                    object.setPersistenceState(PersistenceState.HOLLOW);
                    break;
                case PersistenceState.MODIFIED:
                    DataContext context = (DataContext) object.getObjectContext();
                    DataRow diff = getSnapshot(oid);
                    // consult delegate if it exists
                    DataContextDelegate delegate = context.nonNullDelegate();
                    if (delegate.shouldMergeChanges(object, diff)) {
                        ClassDescriptor descriptor = context.getEntityResolver().getClassDescriptor(oid.getEntityName());
                        DataRowUtils.forceMergeWithSnapshot(context, descriptor, object, diff);
                        delegate.finishedMergeChanges(object);
                    }
                case PersistenceState.HOLLOW:
                    // do nothing
                    break;
                case PersistenceState.DELETED:
                    // TODO: Do nothing? Or treat as merged?
                    break;
            }
        }
    }
}

Example 24 with ClassDescriptor

use of org.apache.cayenne.reflect.ClassDescriptor in project cayenne by apache.

the class PrefetchProcessorJointNode method buildRowMapping.

/**
 * Configures row columns mapping for this node entity.
 */
private void buildRowMapping() {
    final Map<String, ColumnDescriptor> targetSource = new TreeMap<>();
    // build a DB path .. find parent node that terminates the joint group...
    PrefetchTreeNode jointRoot = this;
    while (jointRoot.getParent() != null && !jointRoot.isDisjointPrefetch() && !jointRoot.isDisjointByIdPrefetch()) {
        jointRoot = jointRoot.getParent();
    }
    final String prefix;
    if (jointRoot != this) {
        Expression objectPath = ExpressionFactory.exp(getPath(jointRoot));
        ASTPath translated = (ASTPath) ((PrefetchProcessorNode) jointRoot).getResolver().getEntity().translateToDbPath(objectPath);
        // make sure we do not include "db:" prefix
        prefix = translated.getOperand(0) + ".";
    } else {
        prefix = "";
    }
    if (getParent() != null && !getParent().isPhantom() && getIncoming() != null && !getIncoming().getRelationship().isFlattened()) {
        DbRelationship r = getIncoming().getRelationship().getDbRelationships().get(0);
        for (final DbJoin join : r.getJoins()) {
            appendColumn(targetSource, join.getTargetName(), prefix + join.getTargetName());
        }
    }
    ClassDescriptor descriptor = resolver.getDescriptor();
    descriptor.visitAllProperties(new PropertyVisitor() {

        public boolean visitAttribute(AttributeProperty property) {
            String target = property.getAttribute().getDbAttributePath();
            if (!property.getAttribute().isLazy()) {
                appendColumn(targetSource, target, prefix + target);
            }
            return true;
        }

        public boolean visitToMany(ToManyProperty property) {
            return visitRelationship(property);
        }

        public boolean visitToOne(ToOneProperty property) {
            return visitRelationship(property);
        }

        private boolean visitRelationship(ArcProperty arc) {
            DbRelationship dbRel = arc.getRelationship().getDbRelationships().get(0);
            for (DbAttribute attribute : dbRel.getSourceAttributes()) {
                String target = attribute.getName();
                appendColumn(targetSource, target, prefix + target);
            }
            return true;
        }
    });
    // append id columns ... (some may have been appended already via relationships)
    for (String pkName : descriptor.getEntity().getPrimaryKeyNames()) {
        appendColumn(targetSource, pkName, prefix + pkName);
    }
    // append inheritance discriminator columns...
    for (ObjAttribute column : descriptor.getDiscriminatorColumns()) {
        String target = column.getDbAttributePath();
        appendColumn(targetSource, target, prefix + target);
    }
    int size = targetSource.size();
    this.rowCapacity = (int) Math.ceil(size / 0.75);
    this.columns = new ColumnDescriptor[size];
    targetSource.values().toArray(columns);
}

Example 25 with ClassDescriptor

use of org.apache.cayenne.reflect.ClassDescriptor in project cayenne by apache.

the class PrefetchProcessorJointNode method rowFromFlatRow.

/**
 * Returns a DataRow from the flat row.
 */
DataRow rowFromFlatRow(DataRow flatRow) {
    DataRow row = new DataRow(rowCapacity);
    // extract subset of flat row columns, recasting to the target keys
    for (ColumnDescriptor column : columns) {
        row.put(column.getName(), flatRow.get(column.getDataRowKey()));
    }
    // since JDBC row reader won't inject JOINED entity name, we have to detect it here...
    ClassDescriptor descriptor = resolver.getDescriptor();
    ObjEntity entity = descriptor.getEntityInheritanceTree().entityMatchingRow(row);
    row.setEntityName(entity == null ? null : entity.getName());
    return row;
}