Examples of org.apache.jackrabbit.core.data.DataStore

org.apache.jackrabbit.core.data.DataStore
Append-only store for binary streams. A data store consists of a number of identifiable data records that each contain a distinct binary stream. New binary streams can be added to the data store, but existing streams are never removed or modified.
A data store should be fully thread-safe, i.e. it should be possible to add and access data records concurrently. Optimally even separate processes should be able to concurrently access the data store with zero interprocess synchronization.

     *
     * @return the data store object
     */
    protected DataStore createDataStore() throws RepositoryException {
        DataStoreConfig dsc = repConfig.getDataStoreConfig();
        DataStore dataStore = (DataStore) dsc.newInstance();
        dataStore.init(repConfig.getHomeDir());
        return dataStore;
    }

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                    Node child = children.item(i);
                    if (child.getNodeType() == Node.ELEMENT_NODE
                            && DATA_STORE_ELEMENT.equals(child.getNodeName())) {
                        BeanConfig bc =
                            parseBeanConfig(parent, DATA_STORE_ELEMENT);
                        DataStore store = bc.newInstance(DataStore.class);
                        store.init(directory);
                        return store;
                    }
                }
                return null;
            }

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                    Node child = children.item(i);
                    if (child.getNodeType() == Node.ELEMENT_NODE
                            && DATA_STORE_ELEMENT.equals(child.getNodeName())) {
                        BeanConfig bc =
                            parseBeanConfig(parent, DATA_STORE_ELEMENT);
                        DataStore store = (DataStore) bc.newInstance();
                        store.init(directory);
                        return store;
                    }
                }
                return null;
            }

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            // Create item state cache manager
            context.setItemStateCacheFactory(
                    new ManagedMLRUItemStateCacheFactory(cacheMgr));


            DataStore dataStore = repConfig.getDataStore();
            if (dataStore != null) {
                context.setDataStore(dataStore);
            }


            nodeIdFactory = new NodeIdFactory(repConfig.getHomeDir());

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            log.error("Error while closing Version Manager.", e);
        }


        repDescriptors.clear();


        DataStore dataStore = context.getDataStore();
        if (dataStore != null) {
            try {
                // close the datastore
                dataStore.close();
            } catch (DataStoreException e) {
                log.error("error while closing datastore", e);
            }
        }

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                    Node child = children.item(i);
                    if (child.getNodeType() == Node.ELEMENT_NODE
                            && DATA_STORE_ELEMENT.equals(child.getNodeName())) {
                        BeanConfig bc =
                            parseBeanConfig(parent, DATA_STORE_ELEMENT);
                        DataStore store = bc.newInstance(DataStore.class);
                        store.init(directory);
                        return store;
                    }
                }
                return null;
            }

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            InternalValue val = values[i];
            switch (state.getType()) {
                case PropertyType.BINARY:
                    try {
                        long size = val.getLength();
                        DataStore dataStore = binding.dataStore;
                        if (dataStore != null) {
                            int maxMemorySize = dataStore.getMinRecordLength() - 1;
                            if (size < maxMemorySize) {
                                writeSmallBinary(val, state, i);
                            } else {
                                out.writeInt(BundleBinding.BINARY_IN_DATA_STORE);
                                val.store(dataStore);

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            // Create item state cache manager
            context.setItemStateCacheFactory(
                    new ManagedMLRUItemStateCacheFactory(cacheMgr));


            DataStore dataStore = repConfig.getDataStore();
            if (dataStore != null) {
                context.setDataStore(dataStore);
            }


            context.setWorkspaceManager(new WorkspaceManager(this));

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            log.error("Error while closing Version Manager.", e);
        }


        repDescriptors.clear();


        DataStore dataStore = context.getDataStore();
        if (dataStore != null) {
            try {
                // close the datastore
                dataStore.close();
            } catch (DataStoreException e) {
                log.error("error while closing datastore", e);
            }
        }

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                    Node child = children.item(i);
                    if (child.getNodeType() == Node.ELEMENT_NODE
                            && DATA_STORE_ELEMENT.equals(child.getNodeName())) {
                        BeanConfig bc =
                            parseBeanConfig(parent, DATA_STORE_ELEMENT);
                        DataStore store = (DataStore) bc.newInstance();
                        store.init(directory);
                        return store;
                    }
                }
                return null;
            }

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