Package org.makersoft.shards

Examples of org.makersoft.shards.ShardId

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   */
  private ShardId selectShardIdForNewObject(String statement, Object obj) {
    // if(lockedShardId != null) {
    // return lockedShardId;
    // }
    ShardId shardId = shardStrategy.getShardSelectionStrategy().selectShardIdForNewObject(
        statement, obj);
    // lock has been requested but shard has not yet been selected - lock it in
    // if(lockedShard) {
    // lockedShardId = shardId;
    // }
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    return this.insert(statement, Maps.newHashMap());
  }

  @Override
  public int insert(String statement, Object parameter) {
    ShardId shardId = this.selectShardIdForNewObject(statement, parameter);
    if (shardId == null) {
      shardId = this.getShardIdForStatementOrParameter(statement, parameter);
    }

    Assert.notNull(shardId);
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      for (Shard shard : potentialShards) {
        shardIds.addAll(shard.getShardIds());
      }
    } else {
      //
      ShardId shardId = this.getShardIdForStatementOrParameter(statement, parameter);
      shardIds = Lists.newArrayList(shardId);
    }

    Assert.isTrue(!shardIds.isEmpty());
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      for (Shard shard : potentialShards) {
        shardIds.addAll(shard.getShardIds());
      }
    } else {
      // 此种情况下按先从主分区查询statement如果不存在则查询全部分区来定位
      ShardId shardId = this.getShardIdForStatementOrParameter(statement, parameter);
      shardIds = Lists.newArrayList(shardId);
    }

    Assert.isTrue(!shardIds.isEmpty());
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   * @param shardId  分区Id
   * @param dataSource  数据源
   * @param sqlSessionFactory   mybaits中的{@link SqlSessionFactory}
   */
  public ShardConfigurationImpl(Integer shardId, DataSource dataSource, SqlSessionFactory sqlSessionFactory){
    this(shardId, Lists.newArrayList(new ShardId(shardId)), dataSource, sqlSessionFactory);
  }
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  private static final String PREFIX_VALUE = "prefix_";
  private static final String SUFFIX_VALUE = "_suffix";

  @Before
  public void setup() throws Exception {
    shardId = new ShardId(0);
    shardId.setPrefix("prefix");
    shardId.setSuffix("suffix");
  }
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  // private static String ZERO_STRING = "00000000000000000000000000000000";
  // private static String ID_TYPE_PROPERTY = "sharded-uuid-type";

  private int getShardId() {
    ShardId shardId = ShardedSqlSessionImpl.getCurrentSubgraphShardId();
    Assert.notNull(shardId);

    return Integer.valueOf(shardId.getId());
  }
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  }

  @Override
  public ShardId extractShardId(Serializable identifier) {
    String hexId = (String) identifier;
    return new ShardId(Integer.decode("0x" + hexId.substring(0, 4)));
  }
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    String hexId = (String) identifier;
    return new ShardId(Integer.decode("0x" + hexId.substring(0, 4)));
  }

  public static void main(String[] args) throws Exception {
    ShardedSqlSessionImpl.setCurrentSubgraphShardId(new ShardId(0));

    IdGenerator gen = new ShardedUUIDGenerator();
    IdGenerator gen2 = new ShardedUUIDGenerator();

    for (int i = 0; i < Integer.MAX_VALUE; i++) {
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  @Test
  public void testExtractShardId() throws Exception {
    Assert.assertNotNull(idGenerator);

    ShardId shardId = idGenerator.extractShardId(idGenerator.generate(null, null));

    Assert.assertEquals(ShardedUUIDGeneratorTests.shardId, shardId);
  }
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Related Classes of org.makersoft.shards.ShardId

  • org.makersoft.shards.cfg.impl.ShardConfigurationImpl
  • org.makersoft.shards.id.uuid.ShardedUUIDGenerator
  • org.makersoft.shards.session.impl.ShardedSqlSessionImpl
  • org.makersoft.shards.strategy.UserShardStrategy
  • org.makersoft.shards.unit.BaseHasShardIdListTest
  • org.makersoft.shards.unit.id.uuid.ShardedUUIDGeneratorTests
  • org.makersoft.shards.unit.utils.ParameterUtilTests
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