Package org.apache.jackrabbit.oak.cache

Examples of org.apache.jackrabbit.oak.cache.CacheValue

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                                       final String key,
                                       int maxCacheAge) {
        if (collection != Collection.NODES) {
            return findUncached(collection, key);
        }
        CacheValue cacheKey = new StringValue(key);
        NodeDocument doc;
        if (maxCacheAge > 0) {
            // first try without lock
            doc = nodesCache.getIfPresent(cacheKey);
            if (doc != null) {
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                T doc = convertFromDBObject(collection, o);
                if (collection == Collection.NODES && doc != null) {
                    doc.seal();
                    String id = doc.getId();
                    Lock lock = getAndLock(id);
                    CacheValue cacheKey = new StringValue(id);
                    try {
                        // do not overwrite document in cache if the
                        // existing one in the cache is newer
                        NodeDocument cached = nodesCache.getIfPresent(cacheKey);
                        if (cached != null && cached != NodeDocument.NULL) {
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    private <T extends Document> void applyToCache(@Nonnull Collection<T> collection,
                                                   @Nullable T oldDoc,
                                                   @Nonnull UpdateOp updateOp) {
        // cache the new document
        if (collection == Collection.NODES) {
            CacheValue key = new StringValue(updateOp.getId());
            NodeDocument newDoc = (NodeDocument) collection.newDocument(this);
            if (oldDoc != null) {
                // we can only update the cache based on the oldDoc if we
                // still have the oldDoc in the cache, otherwise we may
                // update the cache with an outdated document
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        // make sure we only cache the document if it wasn't
        // changed and cached by some other thread in the
        // meantime. That is, use get() with a Callable,
        // which is only used when the document isn't there
        try {
            CacheValue key = new StringValue(doc.getId());
            for (;;) {
                NodeDocument cached = nodesCache.get(key,
                        new Callable<NodeDocument>() {
                    @Override
                    public NodeDocument call() {
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    @Override
    public <T extends Document> T find(final Collection<T> collection, final String id, int maxCacheAge) {
        if (collection != Collection.NODES) {
            return readDocument(collection, id);
        } else {
            CacheValue cacheKey = new StringValue(id);
            NodeDocument doc;
            if (maxCacheAge > 0) {
                // first try without lock
                doc = nodesCache.getIfPresent(cacheKey);
                if (doc != null) {
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        // make sure we only cache the document if it wasn't
        // changed and cached by some other thread in the
        // meantime. That is, use get() with a Callable,
        // which is only used when the document isn't there
        try {
            CacheValue key = new StringValue(doc.getId());
            for (;;) {
                NodeDocument cached = nodesCache.get(key, new Callable<NodeDocument>() {
                    @Override
                    public NodeDocument call() {
                        return doc;
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            // this is an insert and some other thread was quicker
            // loading it into the cache -> return now
            return;
        }
        else {
            CacheValue key = new StringValue(newDoc.getId());
            // this is an update (oldDoc != null)
            if (Objects.equal(cached.getModCount(), oldDoc.getModCount())) {
                nodesCache.put(key, newDoc);
            } else {
                // the cache entry was modified by some other thread in
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    private <T extends Document> void addToCacheIfNotNewer(Collection<T> collection, T doc) {
        if (collection == Collection.NODES) {
            String id = doc.getId();
            Lock lock = getAndLock(id);
            CacheValue cacheKey = new StringValue(id);
            try {
                // do not overwrite document in cache if the
                // existing one in the cache is newer
                NodeDocument cached = nodesCache.getIfPresent(cacheKey);
                if (cached != null && cached != NodeDocument.NULL) {
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Related Classes of org.apache.jackrabbit.oak.cache.CacheValue

  • org.apache.jackrabbit.oak.plugins.document.DocumentNodeStore
  • org.apache.jackrabbit.oak.plugins.document.mongo.MongoDocumentStore
  • org.apache.jackrabbit.oak.plugins.document.rdb.RDBDocumentStore
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