Examples of IdGeneratorImpl

org.lilyproject.repository.impl.id.IdGeneratorImpl
org.neo4j.kernel.impl.nioneo.store.IdGeneratorImpl
This class generates unique ids for a resource type. For example, nodes in a nodes space are connected to each other via relationships. On nodes and relationship one can add properties. We have three different resource types here (nodes, relationships and properties) where each resource needs a unique id to be able to differ resources of the same type from each other. Creating three id generators (one for each resource type ) will do the trick.
IdGenerator makes use of so called "defragged" ids. A defragged id is an id that has been in use one or many times but the resource that was using it doesn't exist anymore. This makes it possible to reuse the id and that in turn makes it possible to write a resource store with fixed records and size (you can calculate the position of a record by knowing the id without using indexes or a translation table).
The id returned from {@link #nextId} may not be the lowestavailable id but will be one of the defragged ids if such exist or the next new free id that has never been used.
The {@link #freeId} will not check if the id passed in to it really is free.Passing a non free id will corrupt the id generator and {@link #nextId}method will eventually return that id.
The {@link #close()} method must always be invoked when done using angenerator (for this time). Failure to do will render the generator as "sticky" and unusable next time you try to initialize a generator using the same file. There can only be one id generator instance per id generator file.
In case of disk/file I/O failure an IOException is thrown.
org.waveprotocol.wave.model.id.IdGeneratorImpl
This class is used to generate Wave and Wavelet ids. The id field is structured as a sequence of '+'-separated tokens. The id field is case sensitive. A wavelet is hosted by a single wave service provider, which may differ from the service provider which allocated the wave id. Common examples are private replies and user-data wavelets for users from a federated domain. Thus, the service provider specified in a wavelet id may differ from the service provider of the wave to which it belongs. @author zdwang@google.com (David Wang)

Examples of org.lilyproject.repository.impl.id.IdGeneratorImpl

        HBASE_PROXY = new HBaseProxy();
        HBASE_PROXY.start();
        zooKeeper = ZkUtil.connect(HBASE_PROXY.getZkConnectString(), 10000);
        hbaseTableFactory = new HBaseTableFactoryImpl(HBASE_PROXY.getConf());
        typeTable = LilyHBaseSchema.getTypeTable(hbaseTableFactory);
        typeManager = new HBaseTypeManager(new IdGeneratorImpl(), HBASE_PROXY.getConf(), zooKeeper, hbaseTableFactory);
        valueType = typeManager.getValueType("LONG");
    }

View Full Code Here

Examples of org.lilyproject.repository.impl.id.IdGeneratorImpl

        return reader.fromJson(JsonFormat.deserializeNonStd(data), new NamespacesImpl(false), repository);
    }


    @Test
    public void testScanRecordId() throws Exception {
        IdGenerator idGenerator = new IdGeneratorImpl();


        RecordScan scan = new RecordScan();
        scan.setStartRecordId(idGenerator.newRecordId());
        scan.setStopRecordId(idGenerator.newRecordId("foo"));


        byte[] data = scanToBytes(scan);
        RecordScan parsedScan = scanFromBytes(data);


        assertEquals(scan.getStartRecordId(), parsedScan.getStartRecordId());

View Full Code Here

Examples of org.lilyproject.repository.impl.id.IdGeneratorImpl

                node.get("recordFilter").get("recordType").getTextValue());
    }


    @Test
    public void testScanRecordIdPrefixFilter() throws Exception {
        IdGenerator idGenerator = new IdGeneratorImpl();


        RecordId recordId = idGenerator.newRecordId("foo");


        RecordScan scan = new RecordScan();
        scan.setRecordFilter(new RecordIdPrefixFilter(recordId));


        byte[] data = scanToBytes(scan);

View Full Code Here

Examples of org.lilyproject.repository.impl.id.IdGeneratorImpl

        }
    }


    @Test
    public void testScanRecordVariantFilter() throws Exception {
        IdGenerator idGenerator = new IdGeneratorImpl();


        final Map<String, String> variantProperties = new HashMap<String, String>();
        variantProperties.put("lang", "en");
        variantProperties.put("branch", null);


        RecordId recordId = idGenerator.newRecordId("foo");


        RecordScan scan = new RecordScan();
        scan.setRecordFilter(new RecordVariantFilter(recordId, variantProperties));


        byte[] data = scanToBytes(scan);

View Full Code Here

Examples of org.lilyproject.repository.impl.id.IdGeneratorImpl

        assertEquals(null, node.get("recordFilter").get("variantProperties").get("branch").getTextValue());
    }


    @Test
    public void testScanRecordFilterList() throws Exception {
        IdGenerator idGenerator = new IdGeneratorImpl();


        RecordId recordId = idGenerator.newRecordId("foo");


        RecordScan scan = new RecordScan();
        RecordFilterList filterList = new RecordFilterList(RecordFilterList.Operator.MUST_PASS_ONE);
        filterList.addFilter(new RecordIdPrefixFilter(recordId));
        filterList.addFilter(new RecordTypeFilter(new QName("ns", "stringField")));

View Full Code Here

Examples of org.lilyproject.repository.impl.id.IdGeneratorImpl

        solrUpdateWriter = new FakeSolrUpdateWriter();
    }


    @Test
    public void testMap() throws Exception {
        IdGenerator idGenerator = new IdGeneratorImpl();
        System.out.println(Bytes.toString(idGenerator.fromString("USER.batch-index-custom").toBytes()));
        LTable table = repository.getDefaultTable();
        Record record = table.recordBuilder()
                .assignNewUuid()
                .recordType(new QName(NS1, "rt1"))
                .field(new QName(NS1, "a_string"), "myvalue")

View Full Code Here

Examples of org.lilyproject.repository.impl.id.IdGeneratorImpl

    public void setupTypeManager() throws Exception {
        if (typeManagerSetup) {
            return;
        }


        idGenerator = new IdGeneratorImpl();
        typeManager = new HBaseTypeManager(idGenerator, hadoopConf, zk, hbaseTableFactory);


        typeManagerSetup = true;
    }

View Full Code Here

Examples of org.lilyproject.repository.impl.id.IdGeneratorImpl

     * Returns a new instance of a HBaseTypeManager, different than the default
     * typemanager.
     */
    public TypeManager getNewTypeManager() throws IOException, InterruptedException, KeeperException,
            RepositoryException {
        return new HBaseTypeManager(new IdGeneratorImpl(), hadoopConf, zk, hbaseTableFactory);
    }

View Full Code Here

Examples of org.neo4j.kernel.impl.nioneo.store.IdGeneratorImpl

        private final Map<IdType, IdGenerator> generators = new HashMap<IdType, IdGenerator>();
        
        public IdGenerator open( String fileName, int grabSize, IdType idType,
                long highestIdInUse )
        {
            IdGenerator generator = new IdGeneratorImpl( fileName, grabSize, idType.getMaxValue() );
            generators.put( idType, generator );
            return generator;
        }

View Full Code Here

Examples of org.waveprotocol.wave.model.id.IdGeneratorImpl


    /** @return the id generator for model object. Subclasses may override. */
    protected IdGenerator createIdGenerator() {
      final String seed = getSessionId();
      // Replace with session.
      return new IdGeneratorImpl(getSignedInUser().getDomain(), new Seed() {
        @Override
        public String get() {
          return seed;
        }
      });

View Full Code Here

0 1 2 3 4

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.