terrymanu commented on a change in pull request #10711:
URL: https://github.com/apache/shardingsphere/pull/10711#discussion_r647139030
##########
File path:
shardingsphere-proxy/shardingsphere-proxy-backend/src/main/java/org/apache/shardingsphere/proxy/backend/text/distsql/rdl/impl/AlterShardingTableRuleBackendHandler.java
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@@ -19,28 +19,37 @@
import org.apache.shardingsphere.distsql.parser.segment.TableRuleSegment;
import
org.apache.shardingsphere.distsql.parser.statement.rdl.alter.AlterShardingTableRuleStatement;
+import org.apache.shardingsphere.infra.spi.ShardingSphereServiceLoader;
+import org.apache.shardingsphere.infra.spi.typed.TypedSPIRegistry;
import
org.apache.shardingsphere.infra.yaml.swapper.YamlRuleConfigurationSwapperEngine;
import
org.apache.shardingsphere.proxy.backend.communication.jdbc.connection.BackendConnection;
import
org.apache.shardingsphere.proxy.backend.exception.DuplicateTablesException;
+import
org.apache.shardingsphere.proxy.backend.exception.InvalidShardingAlgorithmsException;
import
org.apache.shardingsphere.proxy.backend.exception.ResourceNotExistedException;
import
org.apache.shardingsphere.proxy.backend.exception.ShardingTableRuleNotExistedException;
import org.apache.shardingsphere.sharding.api.config.ShardingRuleConfiguration;
import
org.apache.shardingsphere.sharding.api.config.rule.ShardingAutoTableRuleConfiguration;
import
org.apache.shardingsphere.sharding.api.config.rule.ShardingTableRuleConfiguration;
import
org.apache.shardingsphere.sharding.converter.ShardingRuleStatementConverter;
+import org.apache.shardingsphere.sharding.spi.ShardingAlgorithm;
import java.util.Collection;
import java.util.Collections;
import java.util.LinkedHashSet;
import java.util.LinkedList;
import java.util.Map.Entry;
+import java.util.Properties;
import java.util.stream.Collectors;
/**
* Alter sharding table rule backend handler.
*/
public final class AlterShardingTableRuleBackendHandler extends
RDLBackendHandler<AlterShardingTableRuleStatement> {
+ static {
+ ShardingSphereServiceLoader.register(ShardingAlgorithm.class);
Review comment:
Why register twice, ShardingAlgorithm has already register in
ShardingRule
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