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.cayenne.access.DataNode


        String template = "SELECT #result('id' 'int') FROM SUS1";
        SQLTemplate query = new SQLTemplate(Object.class, template);
        DataMap map = getDataMap();
        assertNotNull(map);
        DataNode dataNode = createDataNode(map);
        int sizeDB = getNameTablesInDB(dataNode).size();
        MockOperationObserver observer = new MockOperationObserver();


        setStrategy(ThrowOnPartialOrCreateSchemaStrategy.class.getName(), dataNode);


        try {
            dataNode.performQueries(Collections.singletonList((Query) query), observer);
            Map<String, Boolean> nameTables = getNameTablesInDB(dataNode);
            assertTrue(nameTables.get("sus1") != null || nameTables.get("SUS1") != null);
            int sizeDB2 = getNameTablesInDB(dataNode).size();
            assertEquals(2, sizeDB2 - sizeDB);
            dataNode.performQueries(Collections.singletonList((Query) query), observer);
            int sizeDB3 = getNameTablesInDB(dataNode).size();
            assertEquals(sizeDB2, sizeDB3);
        }
        finally {
            DataNode dataNode2 = createDataNode(map);
            dataNode2.setSchemaUpdateStrategy((SchemaUpdateStrategy) Class.forName(
                    dataNode2.getSchemaUpdateStrategyName()).newInstance());
            dropTables(map, dataNode2, observer);
        }
        assertEquals(getNameTablesInDB(dataNode).size(), sizeDB);


    }

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Examples of org.apache.cayenne.access.DataNode

        String template = "SELECT #result('ARTIST_ID' 'int') FROM ARTIST ORDER BY ARTIST_ID";
        SQLTemplate query = new SQLTemplate(Object.class, template);
        MockOperationObserver observer = new MockOperationObserver();
        DataMap map = getDataMap();
        assertNotNull(map);
        DataNode dataNode = createDataNode(map);


        setStrategy(TestSchemaUpdateStrategy.class.getName(), dataNode);


        dataNode.performQueries(Collections.singletonList((Query) query), observer);
        assertTrue(dataNode.getSchemaUpdateStrategy() instanceof TestSchemaUpdateStrategy);
    }

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Examples of org.apache.cayenne.access.DataNode

        String template = "SELECT #result('ARTIST_ID' 'int') FROM ARTIST ORDER BY ARTIST_ID";
        SQLTemplate query = new SQLTemplate(Object.class, template);
        DataMap map = getDataMap();
        assertNotNull(map);
        MockOperationObserver observer = new MockOperationObserver();
        DataNode dataNode = createDataNode(map);


        DataNode dataNode2 = createDataNode(map);


        try {


            int sizeDB = getNameTablesInDB(dataNode).size();
            entity = createOneTable(dataNode);
            int sizeDB2 = getNameTablesInDB(dataNode).size();
            assertEquals(1, sizeDB2 - sizeDB);
            setStrategy(strategy, dataNode2);
            dataNode2.performQueries(Collections.singletonList((Query) query), observer);


        }
        catch (CayenneRuntimeException e) {
            assertNotNull(e);
        }
        try {
            dataNode2.performQueries(Collections.singletonList((Query) query), observer);
        }
        catch (CayenneRuntimeException e) {
            assertNotNull(e);
        }
        finally {

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Examples of org.apache.cayenne.access.DataNode

        String template = "SELECT #result('ARTIST_ID' 'int') FROM ARTIST ORDER BY ARTIST_ID";
        SQLTemplate query = new SQLTemplate(Object.class, template);
        DataMap map = getDataMap();
        assertNotNull(map);
        MockOperationObserver observer = new MockOperationObserver();
        DataNode dataNode = createDataNode(map);
        int sizeDB = getNameTablesInDB(dataNode).size();
        generateDBWithDBGeneratorStrategy(dataNode, query, observer);
        int sizeDB2 = getNameTablesInDB(dataNode).size();
        assertEquals(2, sizeDB2 - sizeDB);
        try {
            DataNode dataNode2 = createDataNode(map);
            setStrategy(strategy, dataNode2);
            dataNode2.performQueries(Collections.singletonList((Query) query), observer);
        }
        finally {
            dropTables(map, dataNode, observer);
        }

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Examples of org.apache.cayenne.access.DataNode


    private DataNode createDataNode(DataMap map) {
        JdbcAdapter adapter = (JdbcAdapter) getAccessStackAdapter().getAdapter();
        Collection<DataMap> colection = new ArrayList<DataMap>();
        colection.add(map);
        DataNode dataNode = new DataNode();
        dataNode.setDataMaps(colection);
        dataNode.setAdapter(adapter);
        dataNode.setDataSource(CayenneResources.getResources().getDataSource());
        dataNode.setDataSourceFactory(getNode().getDataSourceFactory());
        dataNode.setSchemaUpdateStrategyName(getNode().getSchemaUpdateStrategyName());
        dataNode.setEntityResolver(new EntityResolver(colection));
        return dataNode;
    }

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Examples of org.apache.cayenne.access.DataNode


        try {
            DataDomain cayenneDomain =
                Configuration.getSharedConfiguration().getDomain();
            DataMap dataMap = cayenneDomain.getMap("cayenneMap");
            DataNode dataNode = cayenneDomain.getNode("cayenneNode");


            initDatabaseSchema(dataNode, dataMap);


            loadDatabase();

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Examples of org.apache.cayenne.access.DataNode

        assertEquals(2, domain.getDataMaps().size());
        assertTrue(domain.getDataMaps().contains(map1));
        assertTrue(domain.getDataMaps().contains(map2));


        assertEquals(2, domain.getDataNodes().size());
        DataNode node1 = domain.getNode("node1");
        assertNotNull(node1);
        assertEquals(1, node1.getDataMaps().size());
        assertSame(map1, node1.getDataMaps().iterator().next());
        assertSame(node1, domain.lookupDataNode(map1));
        assertEquals(nodeDescriptor1.getDataSourceFactoryType(), node1
                .getDataSourceFactory());
        assertNotNull(node1.getDataSource());
        assertEquals(nodeDescriptor1.getParameters(), node1.getDataSourceLocation());


        assertEquals(nodeDescriptor1.getSchemaUpdateStrategyType(), node1
                .getSchemaUpdateStrategyName());
        assertNotNull(node1.getSchemaUpdateStrategy());
        assertEquals(nodeDescriptor1.getSchemaUpdateStrategyType(), node1
                .getSchemaUpdateStrategy()
                .getClass()
                .getName());


        assertNotNull(node1.getAdapter());
        assertEquals(OracleAdapter.class, node1.getAdapter().getClass());


        DataNode node2 = domain.getNode("node2");
        assertNotNull(node2);
        assertEquals(1, node2.getDataMaps().size());
        assertSame(map2, node2.getDataMaps().iterator().next());
        assertSame(node2, domain.lookupDataNode(map2));
        assertNull(node2.getDataSourceFactory());
        assertNotNull(node2.getDataSource());
        assertEquals(nodeDescriptor2.getParameters(), node2.getDataSourceLocation());
        assertEquals(SkipSchemaUpdateStrategy.class.getName(), node2
                .getSchemaUpdateStrategyName());
        assertNotNull(node2.getSchemaUpdateStrategy());
        assertEquals(SkipSchemaUpdateStrategy.class.getName(), node2
                .getSchemaUpdateStrategy()
                .getClass()
                .getName());


        assertNotNull(node2.getAdapter());
        assertEquals(MockDbAdapter.class, node2.getAdapter().getClass());
    }

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Examples of org.apache.cayenne.access.DataNode

     * @throws SQLException if a database connection could not be obtained
     */
    protected Connection getConnection() throws SQLException {
        DataDomain domain = Configuration.getSharedConfiguration().getDomain();


        DataNode node = (DataNode) domain.getDataNodes().iterator().next();


        return node.getDataSource().getConnection();
    }

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Examples of org.apache.cayenne.access.DataNode

     */
    public DataNode newDataNode(String name) throws Exception {
        AccessStackAdapter adapter = getAccessStackAdapter(connectionInfo
                .getAdapterClassName());


        DataNode node = new DataNode(name);
        node.setDataSource(dataSource);
        node.setAdapter(adapter.getAdapter());
        return node;
    }

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Examples of org.apache.cayenne.access.DataNode

            return "UntitledDataNode";
        }


        @Override
        protected Object create(String name, Object namingContext) {
            return new DataNode(name);
        }

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