org.apache.calcite.sql.advise

Class SqlSimpleParser

java.lang.Object

org.apache.calcite.sql.advise.SqlSimpleParser

public class SqlSimpleParser
extends Object

A simple parser that takes an incomplete and turn it into a syntactically correct statement. It is used in the SQL editor user-interface.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SqlSimpleParser.IdToken Token representing an identifier.
static class	SqlSimpleParser.Token Token.
static class	SqlSimpleParser.Tokenizer Tokenizer.

Constructor Summary

Constructors

Constructor and Description
SqlSimpleParser(String hintToken) Deprecated. Use SqlSimpleParser(String, SqlParser.Config)
SqlSimpleParser(String hintToken, SqlParser.Config parserConfig) Creates a SqlSimpleParser.

Method Summary

Modifier and Type	Method and Description
String	simplifySql(String sql) Turns a partially completed or syntactically incorrect SQL statement into a simplified, valid one that can be validated.
String	simplifySql(String sql, int cursor) Turns a partially completed or syntactically incorrect sql statement into a simplified, valid one that can be passed into getCompletionHints().

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SqlSimpleParser

@Deprecated
public SqlSimpleParser(String hintToken)

Deprecated. Use SqlSimpleParser(String, SqlParser.Config)

Creates a SqlSimpleParser.

Parameters:

hintToken - Hint token

SqlSimpleParser

public SqlSimpleParser(String hintToken,
                       SqlParser.Config parserConfig)

Creates a SqlSimpleParser.

Parameters:

hintToken - Hint token

parserConfig - parser configuration

Method Detail

simplifySql

public String simplifySql(String sql,
                          int cursor)

Turns a partially completed or syntactically incorrect sql statement into a simplified, valid one that can be passed into getCompletionHints().

Parameters:

sql - A partial or syntactically incorrect sql statement

cursor - to indicate column position in the query at which completion hints need to be retrieved.

Returns:

a completed, valid (and possibly simplified SQL statement

simplifySql

public String simplifySql(String sql)

Turns a partially completed or syntactically incorrect SQL statement into a simplified, valid one that can be validated.

Parameters:

sql - A partial or syntactically incorrect sql statement

Returns:

a completed, valid (and possibly simplified) SQL statement