refactor

src/main/java/com/alibaba/druid/sql/ast/statement/SQLUseStatement.java

@@ -0,0 +1,29 @@
+package com.alibaba.druid.sql.ast.statement;
+
+import com.alibaba.druid.sql.ast.SQLName;
+import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.ast.SQLStatementImpl;
+import com.alibaba.druid.sql.visitor.SQLASTVisitor;
+
+public class SQLUseStatement extends SQLStatementImpl implements SQLStatement {
+
+    private static final long serialVersionUID = 1L;
+    private SQLName           database;
+
+    public SQLName getDatabase() {
+        return database;
+    }
+
+    public void setDatabase(SQLName database) {
+        this.database = database;
+    }
+
+    @Override
+    public void accept0(SQLASTVisitor visitor) {
+        if (visitor.visit(this)) {
+            acceptChild(visitor, database);
+        }
+        visitor.endVisit(this);
+    }
+
+}