org.h2.test.synth
Class BnfRandom

java.lang.Object
  org.h2.test.synth.BnfRandom

All Implemented Interfaces:

BnfVisitor

public class BnfRandom
extends java.lang.Object
implements BnfVisitor

A BNF visitor that generates a random SQL statement.

Constructor Summary

BnfRandom()

Method Summary

java.lang.String	getRandomSQL()
int	getStatementCount()
void	setSeed(int seed)
void	visitRuleElement(boolean keyword, java.lang.String name, Rule link) Visit a rule element.
void	visitRuleFixed(int type) Visit a fixed rule.
void	visitRuleList(boolean or, java.util.ArrayList<Rule> list) Visit a rule list.
void	visitRuleOptional(Rule rule) Visit an optional rule.
void	visitRuleRepeat(boolean comma, Rule rule) Visit a repeat rule.

Methods inherited from class java.lang.Object

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

Constructor Detail

BnfRandom

public BnfRandom()
          throws java.lang.Exception

Throws:

java.lang.Exception

Method Detail

getRandomSQL

public java.lang.String getRandomSQL()

visitRuleElement

public void visitRuleElement(boolean keyword,
                             java.lang.String name,
                             Rule link)

Description copied from interface: BnfVisitor

Visit a rule element.

Specified by:

visitRuleElement in interface BnfVisitor

Parameters:

keyword - whether this is a keyword

name - the element name

link - the linked rule if it's not a keyword

visitRuleFixed

public void visitRuleFixed(int type)

Description copied from interface: BnfVisitor

Visit a fixed rule.

Specified by:

visitRuleFixed in interface BnfVisitor

Parameters:

type - the type

visitRuleList

public void visitRuleList(boolean or,
                          java.util.ArrayList<Rule> list)

Description copied from interface: BnfVisitor

Visit a rule list.

Specified by:

visitRuleList in interface BnfVisitor

Parameters:

or - true for OR, false for AND

list - the rules

visitRuleOptional

public void visitRuleOptional(Rule rule)

Description copied from interface: BnfVisitor

Visit an optional rule.

Specified by:

visitRuleOptional in interface BnfVisitor

Parameters:

rule - the rule

visitRuleRepeat

public void visitRuleRepeat(boolean comma,
                            Rule rule)

Description copied from interface: BnfVisitor

Visit a repeat rule.

Specified by:

visitRuleRepeat in interface BnfVisitor

Parameters:

comma - whether the comma is repeated as well

rule - the element to repeat

setSeed

public void setSeed(int seed)

getStatementCount

public int getStatementCount()