Apache Derby Database Engine and Embedded JDBC Driver 10.17.1.0 · org.apache.derby.iapi.sql.compile.Parser

The Parser interface is intended to work with Jack-generated parsers (now JavaCC). We will specify "STATIC=false" when building Jack parsers - this specifies that the generated classes will not be static, which will allow there to be more than one parser (this is necessary in a multi-threaded server). Non-static parsers do not have to be re-initialized every time they are used (unlike static parsers, for which one must call ReInit() between calls to the parser).

Method Summary

Modifier and Type	Method and Description
public String	Returns: Current SQL text string. getSQLtext() Returns the current SQL text string that is being parsed.
public Visitable	Returns: a parse tree representing the search condition parseSearchCondition(String the SQL fragment to parse sqlFragment) Parse an SQL fragment that represents a `<search condition>`.
public Visitable	Returns: A new QueryTree representing the syntax of the Statement parseStatement(String The Statement to parse. statementSQLText, Object[] Parameter defaults paramDefaults) Parses the given statement and returns a query tree.
public Visitable	parseStatement(String statementSQLText)

Method Detail

getSQLtext	back to summary
public String getSQLtext() Returns the current SQL text string that is being parsed. Returns:String Current SQL text string.

getSQLtext

back to summary

public String getSQLtext()

Returns the current SQL text string that is being parsed.

Returns:String: Current SQL text string.

parseSearchCondition back to summary

parseSearchCondition	back to summary
public Visitable parseSearchCondition(String sqlFragment) throws StandardException Parse an SQL fragment that represents a `<search condition>`. Parameters sqlFragment:String the SQL fragment to parse Returns:Visitable a parse tree representing the search condition Exceptions StandardException: if the SQL fragment could not be parsed

public Visitable parseSearchCondition(String sqlFragment) throws StandardException

Parse an SQL fragment that represents a <search condition>.

Parameters

sqlFragment:String: the SQL fragment to parse

Returns:Visitable

a parse tree representing the search condition

Exceptions

StandardException:: if the SQL fragment could not be parsed

parseStatement	back to summary
public Visitable parseStatement(String statementSQLText, Object[] paramDefaults) throws StandardException Parses the given statement and returns a query tree. The query tree at this point is a simple syntactic translation of the statement. No binding will have taken place, and no decisions will have been made regarding processing strategy. Parameters statementSQLText:String The Statement to parse. paramDefaults:Object[] Parameter defaults Returns:Visitable A new QueryTree representing the syntax of the Statement Exceptions StandardException: Thrown on failure

parseStatement

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public Visitable parseStatement(String statementSQLText, Object[] paramDefaults) throws StandardException

Parses the given statement and returns a query tree. The query tree at this point is a simple syntactic translation of the statement. No binding will have taken place, and no decisions will have been made regarding processing strategy.

Parameters

statementSQLText:String: The Statement to parse.
paramDefaults:Object[]: Parameter defaults

Returns:Visitable

A new QueryTree representing the syntax of the Statement

Exceptions

StandardException:: Thrown on failure

parseStatement	back to summary
public Visitable parseStatement(String statementSQLText) throws StandardException

public Interface Parser

Method Summary

Method Detail