com.massa.dsl.lexer

Class NullLexer

java.lang.Object

com.massa.dsl.lexer.AbstractLexer

com.massa.dsl.lexer.NullLexer

All Implemented Interfaces:

MatcherAutoCompleter, Documented, Lexer, Serializable

public class NullLexer
extends AbstractLexer

Null value Lexer.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
NullLexer()

Method Summary

Modifier and Type	Method and Description
String	getNullValues()
LexerParser	getParser(LexerParser parent) Returns a parser which is able to handles the text relative to this lexer
boolean	isOrdered()
LexerMatcher	resolveStart(LexerParser lexerParser) Resolves the start matcher for this lexer.
Class<?>	resolveType(Grammar grammar) Resolves the type of the object parsed by this lexer.
void	setNullValues(String nullValues)
void	validate(Grammar grammar) Default implementation does nothing.

Methods inherited from class com.massa.dsl.lexer.AbstractLexer

equals, getDslDoc, getEnd, getId, getListener, getListenerClass, getMatcherAutoCompleteConfiguration, getStart, hashCode, isRoot, isRootOnly, resolveEnd, setDslDoc, setEnd, setId, setListenerClass, setMatcherAutoCompleteConfiguration, setRoot, setRootOnly, setStart, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

NullLexer

public NullLexer()

Method Detail

isOrdered

public boolean isOrdered()

Returns:

true if the different elements of this lexer should be ordered

resolveType

public Class<?> resolveType(Grammar grammar)

Description copied from interface: Lexer

Resolves the type of the object parsed by this lexer.

resolveStart

public LexerMatcher resolveStart(LexerParser lexerParser)
                          throws DslException

Description copied from interface: Lexer

Resolves the start matcher for this lexer. This method should be used mainly by the LexerParser to retrieve its matcher instance.

Specified by:

resolveStart in interface Lexer

Overrides:

resolveStart in class AbstractLexer

Throws:

DslException

See Also:

LexerParser.resolveStart()

setNullValues

public void setNullValues(String nullValues)

getNullValues

public String getNullValues()

validate

public void validate(Grammar grammar)
              throws DslException

Description copied from class: AbstractLexer

Default implementation does nothing.

Specified by:

validate in interface Lexer

Overrides:

validate in class AbstractLexer

Parameters:

grammar - Related grammar

Throws:

DslException

getParser

public LexerParser getParser(LexerParser parent)

Description copied from interface: Lexer

Returns a parser which is able to handles the text relative to this lexer

Parameters:

parent - Parent parser

Returns:

Object generated by this lexer