com.rabbitmq.jms.parse.sql

Class SqlParser

java.lang.Object

com.rabbitmq.jms.parse.sql.SqlParser

All Implemented Interfaces:

Parser<com.rabbitmq.jms.parse.sql.SqlTreeNode>

public class SqlParser
extends java.lang.Object
implements Parser<com.rabbitmq.jms.parse.sql.SqlTreeNode>

This uses SqlProduction as a naïve parser for the grammar defined in that type.

This class is not thread-safe during construction since it then modifies the passed TokenStream which is (potentially) shared.

Constructor Summary

Constructors

Constructor and Description
SqlParser(SqlTokenStream tokenStream)

Method Summary

Modifier and Type	Method and Description
java.lang.String	getErrorMessage() This call is idempotent.
com.rabbitmq.jms.parse.sql.SqlParseTree	parse() This method returns the parse tree.
boolean	parseOk() This call is idempotent.

Methods inherited from class java.lang.Object

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

Constructor Detail

SqlParser

public SqlParser(SqlTokenStream tokenStream)

Method Detail

parse

public com.rabbitmq.jms.parse.sql.SqlParseTree parse()

Description copied from interface: Parser

This method returns the parse tree. It is idempotent.

Specified by:

parse in interface Parser<com.rabbitmq.jms.parse.sql.SqlTreeNode>

Returns:

a ParseTree<Node> capturing the result of a complete parse attempt.

parseOk

public boolean parseOk()

Description copied from interface: Parser

This call is idempotent.

Specified by:

parseOk in interface Parser<com.rabbitmq.jms.parse.sql.SqlTreeNode>

Returns:

true if the parse completed successfully, otherwise false, in which case the termination message is set.

getErrorMessage

public java.lang.String getErrorMessage()

Description copied from interface: Parser

This call is idempotent.

Specified by:

getErrorMessage in interface Parser<com.rabbitmq.jms.parse.sql.SqlTreeNode>

Returns:

a string with a reason for termination. Only valid if Parser.parseOk() returns false.