Examples of org.apache.jackrabbit.oak.plugins.document.util.StringValue

Package org.apache.jackrabbit.oak.plugins.document.util

Examples of org.apache.jackrabbit.oak.plugins.document.util.StringValue

org.apache.jackrabbit.oak.plugins.document.util.StringValue
A cache value wrapping a simple string.


    private <T extends Document> T readDocumentCached(final Collection<T> collection, final String id, int maxCacheAge) {
        if (collection != Collection.NODES) {
            return readDocumentUncached(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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                // remember what we already have in the cache
                Map<String, NodeDocument> cachedDocs = Collections.emptyMap();
                if (collection == Collection.NODES) {
                    cachedDocs = new HashMap<String, NodeDocument>();
                    for (String key : chunkedIds) {
                        cachedDocs.put(key, nodesCache.getIfPresent(new StringValue(key)));
                    }
                }


                Connection connection = null;
                String tableName = getTable(collection);
                boolean success = false;
                try {
                    connection = getConnection();
                    success = dbBatchedAppendingUpdate(connection, tableName, chunkedIds, modified, appendData);
                    connection.commit();
                } catch (SQLException ex) {
                    success = false;
                } finally {
                    closeConnection(connection);
                }
                if (success) {
                    for (Entry<String, NodeDocument> entry : cachedDocs.entrySet()) {
                            if (entry.getValue() == null) {
                                // make sure concurrently loaded document is invalidated
                                nodesCache.invalidate(new StringValue(entry.getKey()));
                            } else {
                                T oldDoc = (T)(entry.getValue());
                                T newDoc = applyChanges(collection, (T)(entry.getValue()), update, true);
                                applyToCache((NodeDocument) oldDoc, (NodeDocument) newDoc);
                            }

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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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        } else if (oldDoc == null) {
            // 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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            // not in the cache anyway
            return SR.fromRow(collection, row);
        }


        String id = row.getId();
        CacheValue cacheKey = new StringValue(id);
        NodeDocument inCache = nodesCache.getIfPresent(cacheKey);
        Number modCount = row.getModcount();


        if (! NOQUERYFROMCACHE) {
            // do not overwrite document in cache if the

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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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    @Override
    public <T extends Document> void invalidateCache(Collection<T> collection, String id) {
        if (collection == Collection.NODES) {
            Lock lock = getAndLock(id);
            try {
                nodesCache.invalidate(new StringValue(id));
            } finally {
                lock.unlock();
            }
        }
    }

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    @Override
    public <T extends Document> T getIfCached(Collection<T> collection, String id) {
        if (collection != Collection.NODES) {
            return null;
        } else {
            NodeDocument doc = nodesCache.getIfPresent(new StringValue(id));
            return castAsT(doc);
        }
    }

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    @Override
    public <T extends Document> void invalidateCache(Collection<T> collection, String key) {
        if (collection == Collection.NODES) {
            Lock lock = getAndLock(key);
            try {
                nodesCache.invalidate(new StringValue(key));
            } finally {
                lock.unlock();
            }
        }
    }

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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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org.apache.jackrabbit.oak.plugins.document.MemoryDiffCache$MemoryEntry

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