net.sourceforge.chaperon.model.grammar
Class Production

java.lang.Object
  net.sourceforge.chaperon.model.grammar.Production

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

public class Production
extends java.lang.Object
implements java.io.Serializable, java.lang.Cloneable

This class presents a production of a grammar

Version:

CVS $Id: Production.java,v 1.6 2003/12/09 19:55:52 benedikta Exp $

Author:

Stephan Michels

See Also:

Serialized Form

Constructor Summary

Production()
Create an empty production.

Production(Nonterminal ntsymbol)
Create a production.

Production(Nonterminal ntsymbol, SymbolList definition)
Create a production.

Method Summary

java.lang.Object	clone()
boolean	equals(java.lang.Object o) Compares the production with another production.
SymbolList	getDefinition() Return the definition.
int	getLength() Return the the length of the Definition
java.lang.String	getLocation() Returns the location from the input source.
Terminal	getPrecedence() Return the precedence symbol.
Nonterminal	getSymbol() Return the symbol from this production
SymbolSet	getSymbols() Return all used symbols in this production
boolean	hasPrecedence() If the production contains a precedence symbol.
void	setDefinition(SymbolList definition) Set the definition for this production
void	setLocation(java.lang.String location) Set the location from the input source.
void	setPrecedence(Terminal tsymbol) Set the precedence for this production by a terminal symbol
void	setSymbol(Nonterminal ntsymbol) Set the symbol for this production
java.lang.String	toString() Return a string representation of the production.
Violations	validate() Validates the production.

Methods inherited from class java.lang.Object

finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Production

public Production()

Create an empty production.

Production

public Production(Nonterminal ntsymbol)

Create a production.

Parameters:

ntsymbol - The symbol of this production.

Production

public Production(Nonterminal ntsymbol,
                  SymbolList definition)

Create a production.

Parameters:

ntsymbol - The symbol of this production.

definition - Definition of the production.

Method Detail

setSymbol

public void setSymbol(Nonterminal ntsymbol)

Set the symbol for this production

Parameters:

ntsymbol - Non terminal symbol

getSymbol

public Nonterminal getSymbol()

Return the symbol from this production

Returns:

Nonterminal symbol

setDefinition

public void setDefinition(SymbolList definition)

Set the definition for this production

Parameters:

definition - A list of symbols, which the definition of this production represented.

getDefinition

public SymbolList getDefinition()

Return the definition.

Returns:

A list of Symbols, which the definition of this production represented.

getLength

public int getLength()

Return the the length of the Definition

Returns:

Lengt of the Definition

setPrecedence

public void setPrecedence(Terminal tsymbol)

Set the precedence for this production by a terminal symbol

Parameters:

tsymbol - Terminal symbol

getPrecedence

public Terminal getPrecedence()

Return the precedence symbol.

Returns:

Terminal symbol.

hasPrecedence

public boolean hasPrecedence()

If the production contains a precedence symbol.

Returns:

True, if a precedence symbol is defined.

getSymbols

public SymbolSet getSymbols()

Return all used symbols in this production

Returns:

Set of symbols.

setLocation

public void setLocation(java.lang.String location)

Set the location from the input source.

Parameters:

location - Location in the input source.

getLocation

public java.lang.String getLocation()

Returns the location from the input source.

Returns:

Location in the input source.

validate

public Violations validate()

Validates the production.

Returns:

Return a list of violations, if this object isn't valid.

equals

public boolean equals(java.lang.Object o)

Compares the production with another production.

Overrides:

equals in class java.lang.Object

Parameters:

o - Other object.

Returns:

True, if the production are equal.

toString

public java.lang.String toString()

Return a string representation of the production.

Overrides:

toString in class java.lang.Object

Returns:

String representation of the production.

clone

public java.lang.Object clone()

Overrides:

clone in class java.lang.Object

Returns:

Throws:

java.lang.CloneNotSupportedException