Examples of DataNode

com.cxy.redisclient.domain.DataNode
org.apache.cayenne.access.DataNode
An abstraction of a single physical data storage. This is usually a database server, but can potentially be some other storage type like an LDAP server, etc.
org.apache.hadoop.dfs.DataNode
DataNode is a class (and program) that stores a set of blocks for a DFS deployment. A single deployment can have one or many DataNodes. Each DataNode communicates regularly with a single NameNode. It also communicates with client code and other DataNodes from time to time. DataNodes store a series of named blocks. The DataNode allows client code to read these blocks, or to write new block data. The DataNode may also, in response to instructions from its NameNode, delete blocks or copy blocks to/from other DataNodes. The DataNode maintains just one critical table: block-> stream of bytes (of BLOCK_SIZE or less) This info is stored on a local disk. The DataNode reports the table's contents to the NameNode upon startup and every so often afterwards. DataNodes spend their lives in an endless loop of asking the NameNode for something to do. A NameNode cannot connect to a DataNode directly; a NameNode simply returns values from functions invoked by a DataNode. DataNodes maintain an open server socket so that client code or other DataNodes can read/write data. The host/port for this server is reported to the NameNode, which then sends that information to clients or other DataNodes that might be interested.
org.apache.hadoop.hdfs.server.datanode.DataNode
DataNode is a class (and program) that stores a set of blocks for a DFS deployment. A single deployment can have one or many DataNodes. Each DataNode communicates regularly with a single NameNode. It also communicates with client code and other DataNodes from time to time. DataNodes store a series of named blocks. The DataNode allows client code to read these blocks, or to write new block data. The DataNode may also, in response to instructions from its NameNode, delete blocks or copy blocks to/from other DataNodes. The DataNode maintains just one critical table: block-> stream of bytes (of BLOCK_SIZE or less) This info is stored on a local disk. The DataNode reports the table's contents to the NameNode upon startup and every so often afterwards. DataNodes spend their lives in an endless loop of asking the NameNode for something to do. A NameNode cannot connect to a DataNode directly; a NameNode simply returns values from functions invoked by a DataNode. DataNodes maintain an open server socket so that client code or other DataNodes can read/write data. The host/port for this server is reported to the NameNode, which then sends that information to clients or other DataNodes that might be interested.
org.apache.zookeeper.server.DataNode
This class contains the data for a node in the data tree.
A data node contains a reference to its parent, a byte array as its data, an array of ACLs, a stat object, and a set of its children's paths.
org.apache.zookeeper_voltpatches.server.DataNode
This class contains the data for a node in the data tree.
A data node contains a reference to its parent, a byte array as its data, an array of ACLs, a stat object, and a set of its children's paths.

org.chaidb.db.index.btree.DataNode

Each data node has the following format:

 Size  Description 4    Key Size 4    Data Size 1    Flags: 0x01 for overflow data, 0x02 for overflow key 2    Space allocated for this node within the page n    Key/Data

org.jboss.cache.DataNode
Represents a DataNode in the cache. @author Manik Surtani (manik@jboss.org)
org.jsoup.nodes.DataNode
A data node, for contents of style, script tags etc, where contents should not show in text(). @author Jonathan Hedley, jonathan@hedley.net
org.openide.loaders.DataNode
org.pentaho.platform.api.repository2.unified.data.node.DataNode

Examples of org.apache.zookeeper_voltpatches.server.DataNode

     * @return size of the data
     */
    public long approximateDataSize() {
        long result = 0;
        for (Map.Entry<String, DataNode> entry : nodes.entrySet()) {
            DataNode value = entry.getValue();
            synchronized (value) {
                result += entry.getKey().length();
                result += (value.data == null ? 0
                        : value.data.length);
            }

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Examples of org.chaidb.db.index.btree.DataNode

        final PageBufferManager buffer = btree.getBuffer();
        final BTreeSpec btreeSpec = btree.getBTreeSpec();
        PageNumber dupPageNumber = new PageNumber(nodePos.getPageNo());
        try {
            DataPage curDataPage = new DataPage(btree.getBtreeId(), dupPageNumber, btreeSpec, buffer);
            DataNode curDataNode = new DataNode(curDataPage, nodePos.getOffsetInPage());
            curDataNode.setFlags(BTreeSpec.DATA_NODE_DUP_NEXT);
            byte[] oldData = ByteTool.copyByteArray(curDataNode.getPage().getPage(), curDataNode.getNodeOffset(), (int) curDataNode.getNodeSpace());
            byte[] data = new byte[8];
            ByteTool.intToBytes(data, 0, nextNodePos.getOffsetInPage());
            ByteTool.intToBytes(data, 4, nextNodePos.getPageNo());
            curDataNode.storeNode(data, oldData, kContext);
            buffer.releasePage(btree.getBtreeId(), nodePos.getPageNo(), true);
        } catch (ChaiDBException e) {
            logger.error(e);
            buffer.releasePage(btree.getBtreeId(), nodePos.getPageNo(), false);
        }

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Examples of org.chaidb.db.index.btree.DataNode

     *         node.nodeNextPosition is updated to the next position after the node,
     *         if the node is dup_next, nodeNextPosition stored the pointer. if link
     *         is end, nodeNextPosition will be null.
     */
    protected int getNode(DataPage dataPage, NodeInfo node) {
        DataNode dupDataNode = new DataNode(dataPage, node.nodePosition.getOffsetInPage());
        int nPageNo = node.nodePosition.getPageNo();
        int nOffset = node.nodePosition.getOffsetInPage();


        try {
            byte[] data = dupDataNode.getData();
            if (dupDataNode.isDupData()) {
                //This node is available value
                node.data = btree.decodeFromByteArray(data, null);
                node.nodeNextPosition = new NodePosition(nPageNo, nOffset + dupDataNode.getNodeSpace());
                return DUP_DATA;
            } else if (dupDataNode.isDupNext()) {
                node.data = null;
                int nextOffset = ByteTool.bytesToInt(data, 0, btree.getBTreeSpec().isMsbFirst());
                int nNextPageNumber = ByteTool.bytesToInt(data, 4, btree.getBTreeSpec().isMsbFirst());
                if ((nextOffset == nOffset) && (nNextPageNumber == nPageNo)) {
                    node.nodeNextPosition = null;

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Examples of org.jboss.cache.DataNode

      option.setCacheModeLocal(true);
      
      Fqn backup = Fqn.fromString(BuddyManager.BUDDY_BACKUP_SUBTREE);
      backup = new Fqn(backup, "a");
      cache1.put(backup, null, option);
      DataNode target = cache1.get(backup);
      
      Fqn abc = Fqn.fromString("/a/b/c");
      cache2.put(abc, "name", JOE, option);
      Fqn ad = Fqn.fromString("/a/d");
      cache2.put(ad, "name", JANE, option);

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Examples of org.jsoup.nodes.DataNode

                        + bootstrapLocation) + ");\n");


        appendMainScriptTagContents(context, builder);


        builder.append("//]]>");
        mainScriptTag.appendChild(new DataNode(builder.toString(),
                mainScriptTag.baseUri()));
        fragmentNodes.add(mainScriptTag);


    }

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Examples of org.openide.loaders.DataNode

        cookies.add((Node.Cookie) DataEditorSupport.create(this, getPrimaryEntry(), cookies));
    }


    @Override
    protected Node createNodeDelegate() {
        return new DataNode(this, Children.LEAF, getLookup());
    }

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Examples of org.pentaho.platform.api.repository2.unified.data.node.DataNode

        RepositoryFile metadata =
          unifiedRepository.getFile( etcMondrian + RepositoryFile.SEPARATOR + catalogName + RepositoryFile.SEPARATOR
            + "metadata" ); //$NON-NLS-1$


        if ( metadata != null ) {
          DataNode metadataNode =
            unifiedRepository.getDataForRead( metadata.getId(), NodeRepositoryFileData.class ).getNode();
          String datasourceInfo = metadataNode.getProperty( "datasourceInfo" ).getString(); //$NON-NLS-1$
          String definition = metadataNode.getProperty( "definition" ).getString(); //$NON-NLS-1$


          datasourcesXML.append( "<Catalog name=\"" + encoder.encodeForXML( catalogName ) + "\">\n" ); //$NON-NLS-1$ //$NON-NLS-2$
          datasourcesXML
            .append( "<DataSourceInfo>" + encoder.encodeForXML( datasourceInfo ) + "</DataSourceInfo>\n" ); //$NON-NLS-1$ //$NON-NLS-2$
          datasourcesXML.append( "<Definition>" + encoder.encodeForXML( definition ) + "</Definition>\n" ); //$NON-NLS-1$ //$NON-NLS-2$

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