yu199195 commented on a change in pull request #5019: ues strategy pattern
modify refresh ShardingMetaData.
URL:
https://github.com/apache/incubator-shardingsphere/pull/5019#discussion_r400825040
##########
File path:
sharding-jdbc/sharding-jdbc-core/src/main/java/org/apache/shardingsphere/shardingjdbc/jdbc/refreh/SQLStatementMetaDataRefreshFactory.java
##########
@@ -0,0 +1,39 @@
+package org.apache.shardingsphere.shardingjdbc.jdbc.refreh;
+
+import
org.apache.shardingsphere.sql.parser.binder.statement.SQLStatementContext;
+import
org.apache.shardingsphere.sql.parser.binder.statement.ddl.AlterTableStatementContext;
+import
org.apache.shardingsphere.sql.parser.binder.statement.ddl.CreateIndexStatementContext;
+import
org.apache.shardingsphere.sql.parser.binder.statement.ddl.CreateTableStatementContext;
+import
org.apache.shardingsphere.sql.parser.binder.statement.ddl.DropIndexStatementContext;
+import
org.apache.shardingsphere.sql.parser.binder.statement.ddl.DropTableStatementContext;
+import org.apache.shardingsphere.sql.parser.sql.statement.SQLStatement;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Optional;
+
+/**
+ * The type Sql statement meta data refresh factory.
+ */
+public final class SQLStatementMetaDataRefreshFactory {
+
+ private static final Map<Class<?>, SQLStatementMetaDataRefresh<? extends
SQLStatement>> REFRESH_MAP = new HashMap<>();
+
+ static {
+ REFRESH_MAP.put(CreateTableStatementContext.class, new
CreateTableStatementMetaDataRefresh());
+ REFRESH_MAP.put(AlterTableStatementContext.class, new
AlterTableStatementMetaDataRefresh());
+ REFRESH_MAP.put(DropTableStatementContext.class, new
DropTableStatementMetaDataRefresh());
+ REFRESH_MAP.put(CreateIndexStatementContext.class, new
CreateIndexStatementMetaDataRefresh());
+ REFRESH_MAP.put(DropIndexStatementContext.class, new
DropIndexStatementMetaDataRefresh());
+ }
+
+ /**
+ * New instance sql statement meta data refresh.
Review comment:
fix.
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