org.apache.derby.impl.sql.compile
Class ParserImpl

java.lang.Object
  org.apache.derby.impl.sql.compile.ParserImpl

All Implemented Interfaces:

Parser

public class ParserImpl
extends java.lang.Object
implements Parser

Field Summary

private org.apache.derby.impl.sql.compile.SQLParser	cachedParser
protected java.lang.Object	cachedTokenManager
protected CompilerContext	cc
protected CharStream	charStream
(package private) static int	LARGE_TOKEN_SIZE
protected java.lang.String	SQLtext

Constructor Summary

ParserImpl(CompilerContext cc)
Constructor for Parser

Method Summary

private org.apache.derby.impl.sql.compile.SQLParser	getParser() new parser, appropriate for the ParserImpl object.
java.lang.String	getSQLtext() Returns the current SQL text string that is being parsed.
protected java.lang.Object	getTokenManager() Returns a initialized (clean) TokenManager, paired w. the Parser in getParser, Appropriate for this ParserImpl object.
Visitable	parseStatement(java.lang.String statementSQLText)
Visitable	parseStatement(java.lang.String statementSQLText, java.lang.Object[] paramDefaults) Parse a statement and return a query tree.

Methods inherited from class java.lang.Object

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

Field Detail

LARGE_TOKEN_SIZE

static final int LARGE_TOKEN_SIZE

See Also:

Constant Field Values

cachedParser

private org.apache.derby.impl.sql.compile.SQLParser cachedParser

cachedTokenManager

protected java.lang.Object cachedTokenManager

charStream

protected CharStream charStream

SQLtext

protected java.lang.String SQLtext

cc

protected final CompilerContext cc

Constructor Detail

ParserImpl

public ParserImpl(CompilerContext cc)

Constructor for Parser

Method Detail

parseStatement

public Visitable parseStatement(java.lang.String statementSQLText)
                         throws StandardException

Specified by:

parseStatement in interface Parser

Throws:

StandardException

getTokenManager

protected java.lang.Object getTokenManager()

Returns a initialized (clean) TokenManager, paired w. the Parser in getParser, Appropriate for this ParserImpl object.

getParser

private org.apache.derby.impl.sql.compile.SQLParser getParser()

new parser, appropriate for the ParserImpl object.

parseStatement

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

Parse a statement and return a query tree. Implements the Parser interface

Specified by:

parseStatement in interface Parser

Parameters:

statementSQLText - Statement to parse

paramDefaults - parameter defaults. Passed around as an array of objects, but is really an array of StorableDataValues

Returns:

A QueryTree representing the parsed statement

Throws:

StandardException - Thrown on error

getSQLtext

public java.lang.String getSQLtext()

Returns the current SQL text string that is being parsed.

Specified by:

getSQLtext in interface Parser

Returns:

Current SQL text string.