Examples of CacheInvalidationPolicy

org.eclipse.persistence.descriptors.invalidation.CacheInvalidationPolicy
PUBLIC: A CacheInvalidationPolicy is used to set objects in TopLink's identity maps to be invalid following given rules. CacheInvalidationPolicy is the abstract superclass for all policies used for cache invalidation. By default in EclipseLink, objects do not expire in the cache. Several different policies are available to allow objects to expire. These can be set on the ClassDescriptor. @see org.eclipse.persistence.descriptors.ClassDescriptor @see org.eclipse.persistence.descriptors.invalidation.NoExpiryCacheInvalidationPolicy @see org.eclipse.persistence.descriptors.invalidation.DailyCacheInvalidationPolicy @see org.eclipse.persistence.descriptors.invalidation.TimeToLiveCacheInvalidationPolicy

Examples of org.eclipse.persistence.descriptors.invalidation.CacheInvalidationPolicy

     * Check if the object is invalid and refresh it.
     * This is used to ensure that no invalid objects are registered.
     */
    public void checkInvalidObject(Object object, CacheKey cacheKey, ClassDescriptor descriptor) {
        if (!isNestedUnitOfWork() && (cacheKey.getObject() != null)) {
            CacheInvalidationPolicy cachePolicy = descriptor.getCacheInvalidationPolicy();
            // BUG#6671556 refresh invalid objects when accessed in the unit of work.
            if (cachePolicy.shouldRefreshInvalidObjectsInUnitOfWork() && cachePolicy.isInvalidated(cacheKey)) {
                ReadObjectQuery query = new ReadObjectQuery();
                query.setReferenceClass(object.getClass());
                query.setSelectionKey(cacheKey.getKey());
                query.refreshIdentityMapResult();
                query.setIsExecutionClone(true);

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Examples of org.eclipse.persistence.descriptors.invalidation.CacheInvalidationPolicy

     * Check if the object is invalid and should be refreshed, return true, otherwise return false.
     * This is used to ensure that no invalid objects are registered.
     */
    public boolean checkInvalidObject(Object object, CacheKey cacheKey, ClassDescriptor descriptor, UnitOfWorkImpl unitOfWork) {
        if (!unitOfWork.isNestedUnitOfWork() && (cacheKey.getObject() != null)) {
            CacheInvalidationPolicy cachePolicy = descriptor.getCacheInvalidationPolicy();
            // BUG#6671556 refresh invalid objects when accessed in the unit of work.
            return (cachePolicy.shouldRefreshInvalidObjectsInUnitOfWork() && cachePolicy.isInvalidated(cacheKey));
        }
        return false;
    }

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Examples of org.eclipse.persistence.descriptors.invalidation.CacheInvalidationPolicy

     * Check if the object is invalid and refresh it.
     * This is used to ensure that no invalid objects are registered.
     */
    public void checkInvalidObject(Object object, CacheKey cacheKey, ClassDescriptor descriptor) {
        if (!this.isNestedUnitOfWork && (cacheKey.getObject() != null)) {
            CacheInvalidationPolicy cachePolicy = descriptor.getCacheInvalidationPolicy();
            // BUG#6671556 refresh invalid objects when accessed in the unit of work.
            if (cachePolicy.shouldRefreshInvalidObjectsInUnitOfWork() && cachePolicy.isInvalidated(cacheKey)) {
                ReadObjectQuery query = new ReadObjectQuery();
                query.setReferenceClass(object.getClass());
                query.setSelectionId(cacheKey.getKey());
                query.refreshIdentityMapResult();
                query.setIsExecutionClone(true);

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Examples of org.eclipse.persistence.descriptors.invalidation.CacheInvalidationPolicy

                ExpressionBuilder builder = selectionCriteria.getBuilder();
                if (builder.getSession() == null) {
                    builder.setSession(this.session.getRootSession(null));
                    builder.setQueryClass(theClass);
                }
                CacheInvalidationPolicy cacheInvalidationPolicy = descriptor.getCacheInvalidationPolicy();
                int inMemoryQueryIndirectionPolicy = InMemoryQueryIndirectionPolicy.SHOULD_IGNORE_EXCEPTION_RETURN_NOT_CONFORMED;
                if (shouldInvalidateOnException) {
                    inMemoryQueryIndirectionPolicy = InMemoryQueryIndirectionPolicy.SHOULD_IGNORE_EXCEPTION_RETURN_CONFORMED;
                }


                // cache the current time to avoid calculating it every time through the loop
                long currentTimeInMillis = System.currentTimeMillis();
                //Enumeration doesn't checkReadLocks
                for (Enumeration cacheEnum = map.keys(false); cacheEnum.hasMoreElements();) {
                    CacheKey key = (CacheKey)cacheEnum.nextElement();
                    Object object = key.getObject();
                    if (object == null || cacheInvalidationPolicy.isInvalidated(key, currentTimeInMillis)) {
                        continue;
                    }


                    // Must check for inheritance.
                    if (!isChildDescriptor || (object.getClass() == theClass) || (theClass.isInstance(object))) {

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Examples of org.eclipse.persistence.descriptors.invalidation.CacheInvalidationPolicy

         * Check if the object is invalid and *should* be refreshed.
         * This is used to ensure that no invalid objects are cloned.
         */
        public boolean isConsideredInvalid(Object object, CacheKey cacheKey, ClassDescriptor descriptor) {
            if (cacheKey.getObject() != null) {
                CacheInvalidationPolicy cachePolicy = descriptor.getCacheInvalidationPolicy();
                // BUG#6671556 refresh invalid objects when accessed in the unit of work.
                return (cachePolicy.shouldRefreshInvalidObjectsOnClone() && cachePolicy.isInvalidated(cacheKey));
            }
            return false;
        }

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Examples of org.eclipse.persistence.descriptors.invalidation.CacheInvalidationPolicy

     * Check if the object is invalid and refresh it.
     * This is used to ensure that no invalid objects are registered.
     */
    public void checkInvalidObject(Object object, CacheKey cacheKey, ClassDescriptor descriptor) {
        if (!this.isNestedUnitOfWork && (cacheKey.getObject() != null)) {
            CacheInvalidationPolicy cachePolicy = descriptor.getCacheInvalidationPolicy();
            // BUG#6671556 refresh invalid objects when accessed in the unit of work.
            if (cachePolicy.shouldRefreshInvalidObjectsInUnitOfWork() && cachePolicy.isInvalidated(cacheKey)) {
                ReadObjectQuery query = new ReadObjectQuery();
                query.setReferenceClass(object.getClass());
                query.setSelectionId(cacheKey.getKey());
                query.refreshIdentityMapResult();
                query.setIsExecutionClone(true);

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Examples of org.eclipse.persistence.descriptors.invalidation.CacheInvalidationPolicy

     * Check if the object is invalid and refresh it.
     * This is used to ensure that no invalid objects are registered.
     */
    public void checkInvalidObject(Object object, CacheKey cacheKey, ClassDescriptor descriptor) {
        if (!isNestedUnitOfWork() && (cacheKey.getObject() != null)) {
            CacheInvalidationPolicy cachePolicy = descriptor.getCacheInvalidationPolicy();
            // BUG#6671556 refresh invalid objects when accessed in the unit of work.
            if (cachePolicy.shouldRefreshInvalidObjectsInUnitOfWork() && cachePolicy.isInvalidated(cacheKey)) {
                ReadObjectQuery query = new ReadObjectQuery();
                query.setReferenceClass(object.getClass());
                query.setSelectionKey(cacheKey.getKey());
                query.refreshIdentityMapResult();
                query.setIsExecutionClone(true);

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Examples of org.eclipse.persistence.descriptors.invalidation.CacheInvalidationPolicy

                ExpressionBuilder builder = selectionCriteria.getBuilder();
                if (builder.getSession() == null) {
                    builder.setSession(getSession().getRootSession(null));
                    builder.setQueryClass(theClass);
                }
                CacheInvalidationPolicy cacheInvalidationPolicy = descriptor.getCacheInvalidationPolicy();
                int inMemoryQueryIndirectionPolicy = InMemoryQueryIndirectionPolicy.SHOULD_IGNORE_EXCEPTION_RETURN_NOT_CONFORMED;
                if (shouldInvalidateOnException) {
                    inMemoryQueryIndirectionPolicy = InMemoryQueryIndirectionPolicy.SHOULD_IGNORE_EXCEPTION_RETURN_CONFORMED;
                }


                // cache the current time to avoid calculating it every time through the loop
                long currentTimeInMillis = System.currentTimeMillis();
                //Enumeration doesn't checkReadLocks
                for (Enumeration cacheEnum = map.keys(false); cacheEnum.hasMoreElements();) {
                    CacheKey key = (CacheKey)cacheEnum.nextElement();
                    Object object = key.getObject();
                    if (object == null || cacheInvalidationPolicy.isInvalidated(key, currentTimeInMillis)) {
                        continue;
                    }


                    // Must check for inheritance.
                    if (!isChildDescriptor || (object.getClass() == theClass) || (theClass.isInstance(object))) {

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Examples of org.eclipse.persistence.descriptors.invalidation.CacheInvalidationPolicy

     * Check if the object is invalid and should be refreshed, return true, otherwise return false.
     * This is used to ensure that no invalid objects are registered.
     */
    public boolean checkInvalidObject(Object object, CacheKey cacheKey, ClassDescriptor descriptor, UnitOfWorkImpl unitOfWork) {
        if (!unitOfWork.isNestedUnitOfWork() && (cacheKey.getObject() != null)) {
            CacheInvalidationPolicy cachePolicy = descriptor.getCacheInvalidationPolicy();
            // BUG#6671556 refresh invalid objects when accessed in the unit of work.
            return (cachePolicy.shouldRefreshInvalidObjectsInUnitOfWork() && cachePolicy.isInvalidated(cacheKey));
        }
        return false;
    }

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Examples of org.eclipse.persistence.descriptors.invalidation.CacheInvalidationPolicy

    /**
     * INTERNAL:
     * Potentially override the cache invalidation behavior
     */
    protected void initializeCacheInvalidationPolicy() {
        CacheInvalidationPolicy parentPolicyClone = (CacheInvalidationPolicy)getParentDescriptor().getCacheInvalidationPolicy().clone(); 
        getDescriptor().setCacheInvalidationPolicy(parentPolicyClone);
    }

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