Share project "druid" into "http://code.alibabatech.com/svn/druid"

git-svn-id: http://code.alibabatech.com/svn/druid/trunk@2 b9813039-fb51-4c41-a8b9-e21c2acb5095

src/main/java/com/alibaba/druid/sql/parser/SQLDDLParser.java

@@ -0,0 +1,65 @@
+package com.alibaba.druid.sql.parser;
+
+import com.alibaba.druid.sql.ast.SQLName;
+import com.alibaba.druid.sql.ast.statement.NotNullConstraint;
+import com.alibaba.druid.sql.ast.statement.SQLColumnDefinition;
+import com.alibaba.druid.sql.ast.statement.SQLTableConstaint;
+
+public class SQLDDLParser extends SQLStatementParser {
+    public SQLDDLParser(String sql) {
+        super(sql);
+    }
+
+    public SQLDDLParser(Lexer lexer) {
+        super(lexer);
+    }
+
+    protected SQLColumnDefinition parseColumn() {
+        SQLColumnDefinition column = new SQLColumnDefinition();
+        column.setName(this.exprParser.name());
+        column.setDataType(this.exprParser.parseDataType());
+
+        return parseColumnRest(column);
+    }
+
+    protected SQLColumnDefinition parseColumnRest(SQLColumnDefinition column) {
+        if (lexer.token() == Token.DEFAULT) {
+            lexer.nextToken();
+            column.setDefaultExpr(this.exprParser.expr());
+            return parseColumnRest(column);
+        }
+
+        if (lexer.token() == Token.NOT) {
+            lexer.nextToken();
+            accept(Token.NULL);
+            column.getConstaints().add(new NotNullConstraint());
+            return parseColumnRest(column);
+        }
+
+        return column;
+    }
+
+    protected SQLTableConstaint parseConstraint() {
+        SQLName name = null;
+        if (lexer.token() == Token.CONSTRAINT) {
+            lexer.nextToken();
+        }
+
+        if (lexer.token() == Token.IDENTIFIER) {
+            name = this.exprParser.name();
+        }
+
+        if (lexer.token() == Token.PRIMARY) {
+            lexer.nextToken();
+            accept(Token.KEY);
+
+            throw new ParserException("TODO");
+        }
+        
+        if (name != null) {
+            
+        }
+
+        throw new ParserException("TODO");
+    }
+}