Package org.apache.derby.iapi.sql.compile

Interface Parser

  • All Known Implementing Classes:
    ParserImpl
    public interface 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 Detail

      • parseStatement

        Visitable parseStatement​(java.lang.String statementSQLText,
                         java.lang.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 - The Statement to parse.
        paramDefaults - Parameter defaults
        Returns:
        A new QueryTree representing the syntax of the Statement
        Throws:
        StandardException - Thrown on failure

      • parseSearchCondition

        Visitable parseSearchCondition​(java.lang.String sqlFragment)
                        throws StandardException
        Parse an SQL fragment that represents a <search condition>.
        Parameters:
        sqlFragment - the SQL fragment to parse
        Returns:
        a parse tree representing the search condition
        Throws:
        StandardException - if the SQL fragment could not be parsed

      • getSQLtext

        java.lang.String getSQLtext()
        Returns the current SQL text string that is being parsed.
        Returns:
        Current SQL text string.