Examples with DatabaseShardingStrategy com.dangdang.ddframe.rdb.sharding.api.strategy.database.DatabaseShardingStrategy used on opensource projects

Example 21 with DatabaseShardingStrategy

use of com.dangdang.ddframe.rdb.sharding.api.strategy.database.DatabaseShardingStrategy in project sharding-jdbc by dangdangdotcom.

the class Main method getShardingDataSource.

private static ShardingDataSource getShardingDataSource() {
    DataSourceRule dataSourceRule = new DataSourceRule(createDataSourceMap());
    TableRule orderTableRule = TableRule.builder("t_order").actualTables(Arrays.asList("t_order_0", "t_order_1")).dataSourceRule(dataSourceRule).build();
    TableRule orderItemTableRule = TableRule.builder("t_order_item").actualTables(Arrays.asList("t_order_item_0", "t_order_item_1")).dataSourceRule(dataSourceRule).build();
    ShardingRule shardingRule = ShardingRule.builder().dataSourceRule(dataSourceRule).tableRules(Arrays.asList(orderTableRule, orderItemTableRule)).bindingTableRules(Collections.singletonList(new BindingTableRule(Arrays.asList(orderTableRule, orderItemTableRule)))).databaseShardingStrategy(new DatabaseShardingStrategy("user_id", new ModuloDatabaseShardingAlgorithm())).tableShardingStrategy(new TableShardingStrategy("order_id", new ModuloTableShardingAlgorithm())).build();
    return new ShardingDataSource(shardingRule);
}

Example 22 with DatabaseShardingStrategy

use of com.dangdang.ddframe.rdb.sharding.api.strategy.database.DatabaseShardingStrategy in project sharding-jdbc by dangdangdotcom.

the class AbstractShardingDataBasesOnlyDBUnitTest method getShardingDataSource.

protected final ShardingDataSource getShardingDataSource() {
    if (null != shardingDataSource && !isShutdown) {
        return shardingDataSource;
    }
    isShutdown = false;
    DataSourceRule dataSourceRule = new DataSourceRule(createDataSourceMap("dataSource_%s"));
    TableRule orderTableRule = TableRule.builder("t_order").dataSourceRule(dataSourceRule).autoIncrementColumns("user_id").tableIdGenerator(IncrementIdGenerator.class).build();
    TableRule orderItemTableRule = TableRule.builder("t_order_item").dataSourceRule(dataSourceRule).build();
    ShardingRule shardingRule = ShardingRule.builder().dataSourceRule(dataSourceRule).tableRules(Arrays.asList(orderTableRule, orderItemTableRule)).bindingTableRules(Collections.singletonList(new BindingTableRule(Arrays.asList(orderTableRule, orderItemTableRule)))).databaseShardingStrategy(new DatabaseShardingStrategy(Collections.singletonList("user_id"), new MultipleKeysModuloDatabaseShardingAlgorithm())).tableShardingStrategy(new TableShardingStrategy(Collections.singletonList("order_id"), new NoneTableShardingAlgorithm())).build();
    shardingDataSource = new ShardingDataSource(shardingRule);
    return shardingDataSource;
}

Example 23 with DatabaseShardingStrategy

use of com.dangdang.ddframe.rdb.sharding.api.strategy.database.DatabaseShardingStrategy in project sharding-jdbc by dangdangdotcom.

the class SingleTableRouter method createTableRuleWithDefaultDataSource.

private TableRule createTableRuleWithDefaultDataSource(final String logicTable, final DataSourceRule defaultDataSourceRule) {
    Map<String, DataSource> defaultDataSourceMap = new HashMap<>(1);
    defaultDataSourceMap.put(defaultDataSourceRule.getDefaultDataSourceName(), defaultDataSourceRule.getDefaultDataSource().get());
    return TableRule.builder(logicTable).dataSourceRule(new DataSourceRule(defaultDataSourceMap)).databaseShardingStrategy(new DatabaseShardingStrategy("", new NoneDatabaseShardingAlgorithm())).tableShardingStrategy(new TableShardingStrategy("", new NoneTableShardingAlgorithm())).build();
}

Example 24 with DatabaseShardingStrategy

use of com.dangdang.ddframe.rdb.sharding.api.strategy.database.DatabaseShardingStrategy in project sharding-jdbc by dangdangdotcom.

the class SingleTableRouter method routeDataSources.

private Collection<String> routeDataSources() {
    DatabaseShardingStrategy strategy = shardingRule.getDatabaseShardingStrategy(tableRule);
    List<ShardingValue<?>> shardingValues;
    if (HintManagerHolder.isUseShardingHint()) {
        shardingValues = getDatabaseShardingValuesFromHint(strategy.getShardingColumns());
    } else {
        shardingValues = getShardingValues(strategy.getShardingColumns());
    }
    logBeforeRoute("database", logicTable, tableRule.getActualDatasourceNames(), strategy.getShardingColumns(), shardingValues);
    Collection<String> result = new HashSet<>(strategy.doStaticSharding(sqlStatementType, tableRule.getActualDatasourceNames(), shardingValues));
    logAfterRoute("database", logicTable, result);
    Preconditions.checkState(!result.isEmpty(), "no database route info");
    return result;
}