Examples of oracle.toplink.essentials.descriptors.ClassDescriptor

Package oracle.toplink.essentials.descriptors

Examples of oracle.toplink.essentials.descriptors.ClassDescriptor

oracle.toplink.essentials.descriptors.ClassDescriptor

Purpose: Abstract descriptor class for defining persistence information on a class. This class provides the data independent behavior and is subclassed, for relational, object-relational, EIS, XML, etc. @see RelationalDescriptor @see oracle.toplink.essentials.objectrelational.ObjectRelationalDescriptor @see oracle.toplink.essentials.eis.EISDescriptor @see oracle.toplink.essentials.ox.XMLDescriptor

     * Set an object to be invalid in the TopLink identity maps.
     * If the object does not exist in the cache, this method will return
     * without any action
     */
    public void invalidateObject(Vector primaryKey, Class theClass) {
        ClassDescriptor descriptor = getSession().getDescriptor(theClass);
        //forward the call to getCacheKeyForObject locally in case subclasses overload
        CacheKey key = this.getCacheKeyForObject(primaryKey, theClass, descriptor);
        if (key != null) {
            key.setInvalidationState(CacheKey.CACHE_KEY_INVALID);
        }

View Full Code Here

     * ADVANCED:
     * Return true if this object is valid in TopLink's identity maps
     * return false otherwise
     */
    public boolean isValid(Vector primaryKey, Class theClass) {
        ClassDescriptor descriptor = getSession().getDescriptor(theClass);
        //forward the call to getCacheKeyForObject locally in case subclasses overload
        CacheKey key = this.getCacheKeyForObject(primaryKey, theClass, descriptor);
        if (key == null) {
            throw QueryException.classPkDoesNotExistInCache(theClass, primaryKey);
        }
        return !descriptor.getCacheInvalidationPolicy().isInvalidated(key, System.currentTimeMillis());
    }

View Full Code Here

     * Register the object with the identity map.
     * The object must always be registered with its version number if optimistic locking is used.
     * The readTime may also be included in the cache key as it is constructed
     */
    public Object putInIdentityMap(Object object, Vector key, Object writeLockValue, long readTime) {
        ClassDescriptor descriptor = getSession().getDescriptor(object);
        return putInIdentityMap(object, key, writeLockValue, readTime, descriptor);
    }

View Full Code Here

    /**
     * ADVANCED:
     * Remove the object from the object cache.
     */
    public Object removeFromIdentityMap(Vector key, Class theClass) {
        ClassDescriptor descriptor = getSession().getDescriptor(theClass);
        return removeFromIdentityMap(key, theClass, descriptor);
    }

View Full Code Here

        };


        iterator.setSession(getSession());
        Iterator descriptors = getSession().getDescriptors().values().iterator();
        while (descriptors.hasNext()) {
            ClassDescriptor descriptor = (ClassDescriptor)descriptors.next();
            for (Enumeration mapEnum = getIdentityMap(descriptor).elements();
                     mapEnum.hasMoreElements();) {
                iterator.startIterationOn(mapEnum.nextElement());
            }
        }

View Full Code Here

                 mappings.hasMoreElements();) {
            DatabaseMapping mapping = (DatabaseMapping)mappings.nextElement();
            if (mapping.isForeignReferenceMapping()) {
                if (((ForeignReferenceMapping)mapping).hasConstraintDependency()) {
                    Class ownedClass;
                    ClassDescriptor refDescriptor = ((ForeignReferenceMapping)mapping).getReferenceDescriptor();
                    if (refDescriptor == null) {
                        refDescriptor = session.getDescriptor(((ForeignReferenceMapping)mapping).getReferenceClass());
                    }
                    ownedClass = refDescriptor.getJavaClass();


                    if (ownedClass == null) {
                        throw oracle.toplink.essentials.exceptions.DescriptorException.referenceClassNotSpecified(mapping);
                    }
                    CommitOrderDependencyNode node = getOwner().nodeFor(ownedClass);
                    Vector ownedNodes = withAllSubclasses(node);


                    // I could remove duplicates here, but it's not that big a deal.
                    Helper.addAllToVector(relatedNodes, ownedNodes);
                } else if (((ForeignReferenceMapping)mapping).hasInverseConstraintDependency()) {
                    Class ownerClass;
                    ClassDescriptor refDescriptor = ((ForeignReferenceMapping)mapping).getReferenceDescriptor();
                    if (refDescriptor == null) {
                        refDescriptor = session.getDescriptor(((ForeignReferenceMapping)mapping).getReferenceClass());
                    }
                    ownerClass = refDescriptor.getJavaClass();
                    if (ownerClass == null) {
                        throw oracle.toplink.essentials.exceptions.DescriptorException.referenceClassNotSpecified(mapping);
                    }
                    CommitOrderDependencyNode ownerNode = getOwner().nodeFor(ownerClass);
                    Vector ownedNodes = withAllSubclasses(this);

View Full Code Here

     * Return the remaining life of this object.  This method is associated with use of
     * TopLink's cache invalidation feature and returns the difference between the next expiry
     * time of the object and its read time.  The method will return 0 for invalidated objects.
     */
    public long getRemainingValidTime(Object object) {
        ClassDescriptor descriptor = getSession().getDescriptor(object);
        CacheKey key = this.getCacheKeyForObject(object, descriptor);
        if (key == null) {
            throw QueryException.objectDoesNotExistInCache(object);
        }
        return descriptor.getCacheInvalidationPolicy().getRemainingValidTime(key);
    }

View Full Code Here

        initializeSequencing();
        try {
            // First initialize basic properties (things that do not depend on anything else)
            Iterator iterator = descriptors.values().iterator();
            while (iterator.hasNext()) {
                ClassDescriptor descriptor = (ClassDescriptor)iterator.next();
                try {
                    AbstractSession session = getSessionForClass(descriptor.getJavaClass());
                    if (descriptor.requiresInitialization()) {
                        descriptor.preInitialize(session);
                    }


                    //check if inheritance is involved in aggregate relationship, and let the parent know the child descriptor
                    if (descriptor.isAggregateDescriptor() && descriptor.isChildDescriptor()) {
                        descriptor.initializeAggregateInheritancePolicy(session);
                    }
                } catch (RuntimeException exception) {
                    getIntegrityChecker().handleError(exception);
                }
            }


            // Second basic initialize mappings
            iterator = descriptors.values().iterator();
            while (iterator.hasNext()) {
                ClassDescriptor descriptor = (ClassDescriptor)iterator.next();
                try {
                    AbstractSession session = getSessionForClass(descriptor.getJavaClass());
                    if (descriptor.requiresInitialization()) {
                        descriptor.initialize(session);
                    }
                } catch (RuntimeException exception) {
                    getIntegrityChecker().handleError(exception);
                }
            }


            // Third initialize child dependencies
            iterator = descriptors.values().iterator();
            while (iterator.hasNext()) {
                ClassDescriptor descriptor = (ClassDescriptor)iterator.next();
                try {
                    AbstractSession session = getSessionForClass(descriptor.getJavaClass());
                    if (descriptor.requiresInitialization()) {
                        descriptor.postInitialize(session);
                    }
                } catch (RuntimeException exception) {
                    getIntegrityChecker().handleError(exception);
                }
            }

View Full Code Here

        try {
            // First initialize basic properties (things that do not depend on anything else)
            for (Enumeration descriptorEnum = descriptors.elements();
                     descriptorEnum.hasMoreElements();) {
                try {
                    ClassDescriptor descriptor = (ClassDescriptor)descriptorEnum.nextElement();
                    AbstractSession session = getSessionForClass(descriptor.getJavaClass());
                    if (descriptor.requiresInitialization()) {
                        descriptor.preInitialize(session);
                    }


                    //check if inheritance is involved in aggregate relationship, and let the parent know the child descriptor
                    if (descriptor.isAggregateDescriptor() && descriptor.isChildDescriptor()) {
                        descriptor.initializeAggregateInheritancePolicy(session);
                    }
                } catch (RuntimeException exception) {
                    getIntegrityChecker().handleError(exception);
                }
            }


            // Second basic initialize mappings
            for (Enumeration descriptorEnum = descriptors.elements();
                     descriptorEnum.hasMoreElements();) {
                try {
                    ClassDescriptor descriptor = (ClassDescriptor)descriptorEnum.nextElement();
                    AbstractSession session = getSessionForClass(descriptor.getJavaClass());
                    if (descriptor.requiresInitialization()) {
                        descriptor.initialize(session);
                    }
                } catch (RuntimeException exception) {
                    getIntegrityChecker().handleError(exception);
                }
            }


            // Third initialize child dependencies
            for (Enumeration descriptorEnum = descriptors.elements();
                     descriptorEnum.hasMoreElements();) {
                try {
                    ClassDescriptor descriptor = (ClassDescriptor)descriptorEnum.nextElement();
                    AbstractSession session = getSessionForClass(descriptor.getJavaClass());
                    if (descriptor.requiresInitialization()) {
                        descriptor.postInitialize(session);
                    }
                } catch (RuntimeException exception) {
                    getIntegrityChecker().handleError(exception);
                }
            }

View Full Code Here

     * This method allows for a batch of descriptors to be added at once so that TopLink
     * can resolve the dependancies between the descriptors and perform initialization optimally.
     */
    public void addDescriptors(Vector descriptors, DatabaseSessionImpl session) {
        for (Enumeration enumeration = descriptors.elements(); enumeration.hasMoreElements();) {
            ClassDescriptor descriptor = (ClassDescriptor)enumeration.nextElement();
            getDescriptors().put(descriptor.getJavaClass(), descriptor);
            String alias = descriptor.getAlias();
            if (alias != null) {
                addAlias(alias, descriptor);
            }
        }

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

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

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.