org.apache.calcite.sql.parser

Interface SqlAbstractParserImpl.Metadata

All Known Implementing Classes:

SqlAbstractParserImpl.MetadataImpl

Enclosing class:

SqlAbstractParserImpl

public static interface SqlAbstractParserImpl.Metadata

Metadata about the parser. For example:

• "KEY" is a keyword: it is meaningful in certain contexts, such as "CREATE FOREIGN KEY", but can be used as an identifier, as in "CREATE TABLE t (key INTEGER)".
• "SELECT" is a reserved word. It can not be used as an identifier.
• "CURRENT_USER" is the name of a context variable. It cannot be used as an identifier.
• "ABS" is the name of a reserved function. It cannot be used as an identifier.
• "DOMAIN" is a reserved word as specified by the SQL:92 standard.

Method Summary

Methods

Modifier and Type	Method and Description
String	getJdbcKeywords() Returns comma-separated list of JDBC keywords.
List<String>	getTokens() Returns a list of all tokens in alphabetical order.
boolean	isContextVariableName(String token) Returns whether token is the name of a context variable such as "CURRENT_USER".
boolean	isKeyword(String token) Returns whether token is a keyword.
boolean	isNonReservedKeyword(String token) Returns true if token is a keyword but not a reserved word.
boolean	isReservedFunctionName(String token) Returns whether token is a reserved function name such as "CURRENT_USER".
boolean	isReservedWord(String token) Returns whether token is a reserved word.
boolean	isSql92ReservedWord(String token) Returns whether token is a reserved word as specified by the SQL:92 standard.

Method Detail

isNonReservedKeyword

boolean isNonReservedKeyword(String token)

Returns true if token is a keyword but not a reserved word. For example, "KEY".

isContextVariableName

boolean isContextVariableName(String token)

Returns whether token is the name of a context variable such as "CURRENT_USER".

isReservedFunctionName

boolean isReservedFunctionName(String token)

Returns whether token is a reserved function name such as "CURRENT_USER".

isKeyword

boolean isKeyword(String token)

Returns whether token is a keyword. (That is, a non-reserved keyword, a context variable, or a reserved function name.)

isReservedWord

boolean isReservedWord(String token)

Returns whether token is a reserved word.

isSql92ReservedWord

boolean isSql92ReservedWord(String token)

Returns whether token is a reserved word as specified by the SQL:92 standard.

getJdbcKeywords

String getJdbcKeywords()

Returns comma-separated list of JDBC keywords.

getTokens

List<String> getTokens()

Returns a list of all tokens in alphabetical order.