Package oracle.toplink.essentials.descriptors

Examples of oracle.toplink.essentials.descriptors.ClassDescriptor

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     */
    public void addToCollectionChangeRecord(Object newKey, Object newValue, ObjectChangeSet objectChangeSet, UnitOfWorkImpl uow) {
        if (newValue == null) {
            newValue = DirectCollectionChangeRecord.Null;
        }
        ClassDescriptor descriptor;
        DirectCollectionChangeRecord collectionChangeRecord = (DirectCollectionChangeRecord)objectChangeSet.getChangesForAttributeNamed(this.getAttributeName());
        if (collectionChangeRecord == null) {
            collectionChangeRecord = new DirectCollectionChangeRecord(objectChangeSet);
            collectionChangeRecord.setAttribute(getAttributeName());
            collectionChangeRecord.setMapping(this);
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     */
    public void removeFromCollectionChangeRecord(Object newKey, Object newValue, ObjectChangeSet objectChangeSet, UnitOfWorkImpl uow) {
        if (newValue == null) {
            newValue = DirectCollectionChangeRecord.Null;
        }
        ClassDescriptor descriptor;
        DirectCollectionChangeRecord collectionChangeRecord = (DirectCollectionChangeRecord)objectChangeSet.getChangesForAttributeNamed(this.getAttributeName());
        if (collectionChangeRecord == null) {
            collectionChangeRecord = new DirectCollectionChangeRecord(objectChangeSet);
            collectionChangeRecord.setAttribute(getAttributeName());
            collectionChangeRecord.setMapping(this);
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        Vector primaryKey = getSession().keyFromObject(getSourceObject());
        Object originalObject = getUnitOfWork().getParent().getIdentityMapAccessor().getFromIdentityMap(primaryKey, getSourceObject().getClass());
        if (originalObject == null) {
            originalObject = getUnitOfWork().getParent().readObject(getSourceObject());
        }
        ClassDescriptor descriptor = getSession().getDescriptor(originalObject);
        DatabaseMapping mapping = descriptor.getObjectBuilder().getMappingForAttributeName(getSourceAttributeName());
        setMapping(mapping);
        return getMapping().getRealAttributeValueFromObject(originalObject, getSession());
    }
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        // if the target object is not an instance of the class type associated with the partner
        // mapping, try and look up the same partner mapping but as part of the partnerObject's
        // descriptor.  Only check if inheritance is involved...
        if (partner.getDescriptor().hasInheritance()) {
            ClassDescriptor partnerObjectDescriptor = this.getSession().getDescriptor(partnerObject);
            if (!(partner.getDescriptor().getJavaClass().isAssignableFrom(partnerObjectDescriptor.getJavaClass()))) {
                return (ForeignReferenceMapping)partnerObjectDescriptor.getMappingForAttributeName(partner.getAttributeName());
            }
        }
        return partner;
    }
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    /**
     * Fetch and return the descriptor for the specified object.
     */
    protected ClassDescriptor getDescriptorFor(Object object) {
        ClassDescriptor result = getSession().getDescriptor(object);
        if (result == null) {
            throw DescriptorException.missingDescriptor(object.getClass().getName());
        }
        return result;
    }
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        }

        // When using wrapper policy in EJB the iteration can stop in certain cases,
        // this is because EJB forces beans to be registered anyway and clone identity can be violated
        // and the violated clones references to session objects should not be traversed.
        ClassDescriptor rd = mapping.getReferenceDescriptor();
        if ((!shouldIterateOverWrappedObjects()) && (rd != null) && (rd.hasWrapperPolicy())) {
            return;
        }
        if (referenceObject == null) {
            return;
        }
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    /** Returns the type of the class corresponding to the spcified abstract
     * schema type.
     */
    public Object resolveSchema(String schemaName) {
        ClassDescriptor descriptor = session.getDescriptorForAlias(schemaName);
        return (descriptor != null) ? descriptor.getJavaClass() : null;
    }
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        return null;
    }

    /** Returns true if the specified type denotes an entity class. */
    public boolean isEntityClass(Object type) {
        ClassDescriptor desc = getDescriptor(type);
        return (desc != null) && !desc.isAggregateDescriptor();
    }
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        return (desc != null) && !desc.isAggregateDescriptor();
    }

    /** Returns true if the specified type denotes an embedded class. */
    public boolean isEmbeddable(Object type) {
        ClassDescriptor desc = getDescriptor(type);
        return (desc != null) && desc.isAggregateDescriptor();
    }
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    /** Returns the class descriptor if the specified non-null type is a class
     * object.
     */
    private ClassDescriptor getDescriptor(Object type) {
        ClassDescriptor desc = null;
        if (type instanceof Class) {
            desc = session.getDescriptor((Class)type);
        } else if (type instanceof ClassDescriptor) {
            desc = (ClassDescriptor)type;
        }
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Related Classes of oracle.toplink.essentials.descriptors.ClassDescriptor

  • oracle.toplink.essentials.descriptors.InheritancePolicy
  • oracle.toplink.essentials.internal.databaseaccess.DatabasePlatform
  • oracle.toplink.essentials.internal.descriptors.DescriptorIterator
  • oracle.toplink.essentials.internal.descriptors.ObjectBuilder
  • oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerImpl
  • oracle.toplink.essentials.internal.ejb.cmp3.EntityManagerSetupImpl
  • oracle.toplink.essentials.internal.ejb.cmp3.metadata.accessors.ClassAccessor
  • oracle.toplink.essentials.internal.ejb.cmp3.metadata.MetadataProject
  • oracle.toplink.essentials.internal.expressions.DataExpression
  • oracle.toplink.essentials.internal.expressions.ParameterExpression
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