java.lang.Object
- org.opencypher.tools.antlr.bnf.BNFBaseListener
- - org.opencypher.tools.g4processors.BNFListener

All Implemented Interfaces:

org.antlr.v4.runtime.tree.ParseTreeListener, BNFListener
```
public class BNFListener
extends BNFBaseListener
```
builds a GrammarItem tree from a SQL-BNF specification

Constructor Summary

Constructors
Constructor Description

BNFListener(org.antlr.v4.runtime.CommonTokenStream tokens)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`exitAlternative(BNFParser.AlternativeContext ctx)`	Exit a parse tree produced by `BNFParser.alternative()`.
`void`	`exitAlternatives(BNFParser.AlternativesContext ctx)`	Exit a parse tree produced by `BNFParser.alternatives()`.
`void`	`exitBnfsymbols(BNFParser.BnfsymbolsContext ctx)`	Exit a parse tree produced by `BNFParser.bnfsymbols()`.
`void`	`exitCharacterset(BNFParser.CharactersetContext ctx)`	Exit a parse tree produced by `BNFParser.characterset()`.
`void`	`exitElement(BNFParser.ElementContext ctx)`	Exit a parse tree produced by `BNFParser.element()`.
`void`	`exitExclusioncharacterset(BNFParser.ExclusioncharactersetContext ctx)`	Exit a parse tree produced by `BNFParser.exclusioncharacterset()`.
`void`	`exitId(BNFParser.IdContext ctx)`	Exit a parse tree produced by `BNFParser.id()`.
`void`	`exitLhs(BNFParser.LhsContext ctx)`	Exit a parse tree produced by `BNFParser.lhs()`.
`void`	`exitListcharacterset(BNFParser.ListcharactersetContext ctx)`	Exit a parse tree produced by `BNFParser.listcharacterset()`.
`void`	`exitNamedcharacterset(BNFParser.NamedcharactersetContext ctx)`	Exit a parse tree produced by `BNFParser.namedcharacterset()`.
`void`	`exitNormaltext(BNFParser.NormaltextContext ctx)`	Exit a parse tree produced by `BNFParser.normaltext()`.
`void`	`exitOptionalitem(BNFParser.OptionalitemContext ctx)`	Exit a parse tree produced by `BNFParser.optionalitem()`.
`void`	`exitRequireditem(BNFParser.RequireditemContext ctx)`	Exit a parse tree produced by `BNFParser.requireditem()`.
`void`	`exitRhs(BNFParser.RhsContext ctx)`	Exit a parse tree produced by `BNFParser.rhs()`.
`void`	`exitRule_(BNFParser.Rule_Context ctx)`	Exit a parse tree produced by `BNFParser.rule_()`.
`void`	`exitRuleid(BNFParser.RuleidContext ctx)`	Exit a parse tree produced by `BNFParser.ruleid()`.
`void`	`exitRulelist(BNFParser.RulelistContext ctx)`	Exit a parse tree produced by `BNFParser.rulelist()`.
`void`	`exitRuleref(BNFParser.RulerefContext ctx)`	Exit a parse tree produced by `BNFParser.ruleref()`.
`void`	`exitText(BNFParser.TextContext ctx)`	Exit a parse tree produced by `BNFParser.text()`.
`GrammarTop`	`getTreeTop()`

Methods inherited from class org.opencypher.tools.antlr.bnf.BNFBaseListener
enterAlternative, enterAlternatives, enterBnfsymbol, enterBnfsymbols, enterCharacterset, enterDescription, enterDescriptionLine, enterElement, enterEveryRule, enterExclusioncharacterset, enterHeader, enterId, enterLhs, enterListcharacterset, enterNamedcharacterset, enterNormaltext, enterOptionalitem, enterRequireditem, enterRhs, enterRule_, enterRuleid, enterRulelist, enterRuleref, enterText, exitBnfsymbol, exitDescription, exitDescriptionLine, exitEveryRule, exitHeader, visitErrorNode, visitTerminal

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - BNFListener
```
public BNFListener(org.antlr.v4.runtime.CommonTokenStream tokens)
```
- Method Detail
  - getTreeTop
```
public GrammarTop getTreeTop()
```
  - exitRulelist
```
public void exitRulelist(BNFParser.RulelistContext ctx)
```
    Description copied from class: BNFBaseListener
    
    Exit a parse tree produced by BNFParser.rulelist().
    The default implementation does nothing.
    
    Specified by:
    
    exitRulelist in interface BNFListener
    
    Overrides:
    
    exitRulelist in class BNFBaseListener
    
    Parameters:
    
    ctx - the parse tree
  - exitRule_
```
public void exitRule_(BNFParser.Rule_Context ctx)
```
    Description copied from class: BNFBaseListener
    
    Exit a parse tree produced by BNFParser.rule_().
    The default implementation does nothing.
    
    Specified by:
    
    exitRule_ in interface BNFListener
    
    Overrides:
    
    exitRule_ in class BNFBaseListener
    
    Parameters:
    
    ctx - the parse tree
  - exitLhs
```
public void exitLhs(BNFParser.LhsContext ctx)
```
    Description copied from class: BNFBaseListener
    
    Exit a parse tree produced by BNFParser.lhs().
    The default implementation does nothing.
    
    Specified by:
    
    exitLhs in interface BNFListener
    
    Overrides:
    
    exitLhs in class BNFBaseListener
    
    Parameters:
    
    ctx - the parse tree
  - exitBnfsymbols
```
public void exitBnfsymbols(BNFParser.BnfsymbolsContext ctx)
```
    Description copied from class: BNFBaseListener
    
    Exit a parse tree produced by BNFParser.bnfsymbols().
    The default implementation does nothing.
    
    Specified by:
    
    exitBnfsymbols in interface BNFListener
    
    Overrides:
    
    exitBnfsymbols in class BNFBaseListener
    
    Parameters:
    
    ctx - the parse tree
  - exitRhs
```
public void exitRhs(BNFParser.RhsContext ctx)
```
    Description copied from class: BNFBaseListener
    
    Exit a parse tree produced by BNFParser.rhs().
    The default implementation does nothing.
    
    Specified by:
    
    exitRhs in interface BNFListener
    
    Overrides:
    
    exitRhs in class BNFBaseListener
    
    Parameters:
    
    ctx - the parse tree
  - exitAlternatives
```
public void exitAlternatives(BNFParser.AlternativesContext ctx)
```
    Description copied from class: BNFBaseListener
    
    Exit a parse tree produced by BNFParser.alternatives().
    The default implementation does nothing.
    
    Specified by:
    
    exitAlternatives in interface BNFListener
    
    Overrides:
    
    exitAlternatives in class BNFBaseListener
    
    Parameters:
    
    ctx - the parse tree
  - exitAlternative
```
public void exitAlternative(BNFParser.AlternativeContext ctx)
```
    Description copied from class: BNFBaseListener
    
    Exit a parse tree produced by BNFParser.alternative().
    The default implementation does nothing.
    
    Specified by:
    
    exitAlternative in interface BNFListener
    
    Overrides:
    
    exitAlternative in class BNFBaseListener
    
    Parameters:
    
    ctx - the parse tree
  - exitElement
```
public void exitElement(BNFParser.ElementContext ctx)
```
    Description copied from class: BNFBaseListener
    
    Exit a parse tree produced by BNFParser.element().
    The default implementation does nothing.
    
    Specified by:
    
    exitElement in interface BNFListener
    
    Overrides:
    
    exitElement in class BNFBaseListener
    
    Parameters:
    
    ctx - the parse tree
  - exitOptionalitem
```
public void exitOptionalitem(BNFParser.OptionalitemContext ctx)
```
    Description copied from class: BNFBaseListener
    
    Exit a parse tree produced by BNFParser.optionalitem().
    The default implementation does nothing.
    
    Specified by:
    
    exitOptionalitem in interface BNFListener
    
    Overrides:
    
    exitOptionalitem in class BNFBaseListener
    
    Parameters:
    
    ctx - the parse tree
  - exitRequireditem
```
public void exitRequireditem(BNFParser.RequireditemContext ctx)
```
    Description copied from class: BNFBaseListener
    
    Exit a parse tree produced by BNFParser.requireditem().
    The default implementation does nothing.
    
    Specified by:
    
    exitRequireditem in interface BNFListener
    
    Overrides:
    
    exitRequireditem in class BNFBaseListener
    
    Parameters:
    
    ctx - the parse tree
  - exitText
```
public void exitText(BNFParser.TextContext ctx)
```
    Description copied from class: BNFBaseListener
    
    Exit a parse tree produced by BNFParser.text().
    The default implementation does nothing.
    
    Specified by:
    
    exitText in interface BNFListener
    
    Overrides:
    
    exitText in class BNFBaseListener
    
    Parameters:
    
    ctx - the parse tree
  - exitCharacterset
```
public void exitCharacterset(BNFParser.CharactersetContext ctx)
```
    Description copied from class: BNFBaseListener
    
    Exit a parse tree produced by BNFParser.characterset().
    The default implementation does nothing.
    
    Specified by:
    
    exitCharacterset in interface BNFListener
    
    Overrides:
    
    exitCharacterset in class BNFBaseListener
    
    Parameters:
    
    ctx - the parse tree
  - exitNamedcharacterset
```
public void exitNamedcharacterset(BNFParser.NamedcharactersetContext ctx)
```
    Description copied from class: BNFBaseListener
    
    Exit a parse tree produced by BNFParser.namedcharacterset().
    The default implementation does nothing.
    
    Specified by:
    
    exitNamedcharacterset in interface BNFListener
    
    Overrides:
    
    exitNamedcharacterset in class BNFBaseListener
    
    Parameters:
    
    ctx - the parse tree
  - exitExclusioncharacterset
```
public void exitExclusioncharacterset(BNFParser.ExclusioncharactersetContext ctx)
```
    Description copied from class: BNFBaseListener
    
    Exit a parse tree produced by BNFParser.exclusioncharacterset().
    The default implementation does nothing.
    
    Specified by:
    
    exitExclusioncharacterset in interface BNFListener
    
    Overrides:
    
    exitExclusioncharacterset in class BNFBaseListener
    
    Parameters:
    
    ctx - the parse tree
  - exitListcharacterset
```
public void exitListcharacterset(BNFParser.ListcharactersetContext ctx)
```
    Description copied from class: BNFBaseListener
    
    Exit a parse tree produced by BNFParser.listcharacterset().
    The default implementation does nothing.
    
    Specified by:
    
    exitListcharacterset in interface BNFListener
    
    Overrides:
    
    exitListcharacterset in class BNFBaseListener
    
    Parameters:
    
    ctx - the parse tree
  - exitNormaltext
```
public void exitNormaltext(BNFParser.NormaltextContext ctx)
```
    Description copied from class: BNFBaseListener
    
    Exit a parse tree produced by BNFParser.normaltext().
    The default implementation does nothing.
    
    Specified by:
    
    exitNormaltext in interface BNFListener
    
    Overrides:
    
    exitNormaltext in class BNFBaseListener
    
    Parameters:
    
    ctx - the parse tree
  - exitId
```
public void exitId(BNFParser.IdContext ctx)
```
    Description copied from class: BNFBaseListener
    
    Exit a parse tree produced by BNFParser.id().
    The default implementation does nothing.
    
    Specified by:
    
    exitId in interface BNFListener
    
    Overrides:
    
    exitId in class BNFBaseListener
    
    Parameters:
    
    ctx - the parse tree
  - exitRuleref
```
public void exitRuleref(BNFParser.RulerefContext ctx)
```
    Description copied from class: BNFBaseListener
    
    Exit a parse tree produced by BNFParser.ruleref().
    The default implementation does nothing.
    
    Specified by:
    
    exitRuleref in interface BNFListener
    
    Overrides:
    
    exitRuleref in class BNFBaseListener
    
    Parameters:
    
    ctx - the parse tree
  - exitRuleid
```
public void exitRuleid(BNFParser.RuleidContext ctx)
```
    Description copied from class: BNFBaseListener
    
    Exit a parse tree produced by BNFParser.ruleid().
    The default implementation does nothing.
    
    Specified by:
    
    exitRuleid in interface BNFListener
    
    Overrides:
    
    exitRuleid in class BNFBaseListener
    
    Parameters:
    
    ctx - the parse tree

Class BNFListener

Constructor Summary

Method Summary

Methods inherited from class org.opencypher.tools.antlr.bnf.BNFBaseListener

Methods inherited from class java.lang.Object

Constructor Detail

BNFListener

Method Detail

getTreeTop

exitRulelist

exitRule_

exitLhs

exitBnfsymbols

exitRhs

exitAlternatives

exitAlternative

exitElement

exitOptionalitem

exitRequireditem

exitText

exitCharacterset

exitNamedcharacterset

exitExclusioncharacterset

exitListcharacterset

exitNormaltext

exitId

exitRuleref

exitRuleid