Type Parameters:

T - The return type of the visit operation. Use Void for operations with no return type.

All Superinterfaces:

org.antlr.v4.runtime.tree.ParseTreeVisitor<T>

All Known Implementing Classes:

FHIRPathBaseVisitor, FHIRPathEvaluator.EvaluatingVisitor, PrintingVisitor
```
public interface FHIRPathVisitor<T>
extends org.antlr.v4.runtime.tree.ParseTreeVisitor<T>
```
This interface defines a complete generic visitor for a parse tree produced by FHIRPathParser.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`T`	`visitAdditiveExpression(FHIRPathParser.AdditiveExpressionContext ctx)`	Visit a parse tree produced by the `additiveExpression` labeled alternative in `FHIRPathParser.expression()`.
`T`	`visitAndExpression(FHIRPathParser.AndExpressionContext ctx)`	Visit a parse tree produced by the `andExpression` labeled alternative in `FHIRPathParser.expression()`.
`T`	`visitBooleanLiteral(FHIRPathParser.BooleanLiteralContext ctx)`	Visit a parse tree produced by the `booleanLiteral` labeled alternative in `FHIRPathParser.literal()`.
`T`	`visitDateLiteral(FHIRPathParser.DateLiteralContext ctx)`	Visit a parse tree produced by the `dateLiteral` labeled alternative in `FHIRPathParser.literal()`.
`T`	`visitDateTimeLiteral(FHIRPathParser.DateTimeLiteralContext ctx)`	Visit a parse tree produced by the `dateTimeLiteral` labeled alternative in `FHIRPathParser.literal()`.
`T`	`visitDateTimePrecision(FHIRPathParser.DateTimePrecisionContext ctx)`	Visit a parse tree produced by `FHIRPathParser.dateTimePrecision()`.
`T`	`visitEqualityExpression(FHIRPathParser.EqualityExpressionContext ctx)`	Visit a parse tree produced by the `equalityExpression` labeled alternative in `FHIRPathParser.expression()`.
`T`	`visitExternalConstant(FHIRPathParser.ExternalConstantContext ctx)`	Visit a parse tree produced by `FHIRPathParser.externalConstant()`.
`T`	`visitExternalConstantTerm(FHIRPathParser.ExternalConstantTermContext ctx)`	Visit a parse tree produced by the `externalConstantTerm` labeled alternative in `FHIRPathParser.term()`.
`T`	`visitFunction(FHIRPathParser.FunctionContext ctx)`	Visit a parse tree produced by `FHIRPathParser.function()`.
`T`	`visitFunctionInvocation(FHIRPathParser.FunctionInvocationContext ctx)`	Visit a parse tree produced by the `functionInvocation` labeled alternative in `FHIRPathParser.invocation()`.
`T`	`visitIdentifier(FHIRPathParser.IdentifierContext ctx)`	Visit a parse tree produced by `FHIRPathParser.identifier()`.
`T`	`visitImpliesExpression(FHIRPathParser.ImpliesExpressionContext ctx)`	Visit a parse tree produced by the `impliesExpression` labeled alternative in `FHIRPathParser.expression()`.
`T`	`visitIndexerExpression(FHIRPathParser.IndexerExpressionContext ctx)`	Visit a parse tree produced by the `indexerExpression` labeled alternative in `FHIRPathParser.expression()`.
`T`	`visitIndexInvocation(FHIRPathParser.IndexInvocationContext ctx)`	Visit a parse tree produced by the `indexInvocation` labeled alternative in `FHIRPathParser.invocation()`.
`T`	`visitInequalityExpression(FHIRPathParser.InequalityExpressionContext ctx)`	Visit a parse tree produced by the `inequalityExpression` labeled alternative in `FHIRPathParser.expression()`.
`T`	`visitInvocationExpression(FHIRPathParser.InvocationExpressionContext ctx)`	Visit a parse tree produced by the `invocationExpression` labeled alternative in `FHIRPathParser.expression()`.
`T`	`visitInvocationTerm(FHIRPathParser.InvocationTermContext ctx)`	Visit a parse tree produced by the `invocationTerm` labeled alternative in `FHIRPathParser.term()`.
`T`	`visitLiteralTerm(FHIRPathParser.LiteralTermContext ctx)`	Visit a parse tree produced by the `literalTerm` labeled alternative in `FHIRPathParser.term()`.
`T`	`visitMemberInvocation(FHIRPathParser.MemberInvocationContext ctx)`	Visit a parse tree produced by the `memberInvocation` labeled alternative in `FHIRPathParser.invocation()`.
`T`	`visitMembershipExpression(FHIRPathParser.MembershipExpressionContext ctx)`	Visit a parse tree produced by the `membershipExpression` labeled alternative in `FHIRPathParser.expression()`.
`T`	`visitMultiplicativeExpression(FHIRPathParser.MultiplicativeExpressionContext ctx)`	Visit a parse tree produced by the `multiplicativeExpression` labeled alternative in `FHIRPathParser.expression()`.
`T`	`visitNullLiteral(FHIRPathParser.NullLiteralContext ctx)`	Visit a parse tree produced by the `nullLiteral` labeled alternative in `FHIRPathParser.literal()`.
`T`	`visitNumberLiteral(FHIRPathParser.NumberLiteralContext ctx)`	Visit a parse tree produced by the `numberLiteral` labeled alternative in `FHIRPathParser.literal()`.
`T`	`visitOrExpression(FHIRPathParser.OrExpressionContext ctx)`	Visit a parse tree produced by the `orExpression` labeled alternative in `FHIRPathParser.expression()`.
`T`	`visitParamList(FHIRPathParser.ParamListContext ctx)`	Visit a parse tree produced by `FHIRPathParser.paramList()`.
`T`	`visitParenthesizedTerm(FHIRPathParser.ParenthesizedTermContext ctx)`	Visit a parse tree produced by the `parenthesizedTerm` labeled alternative in `FHIRPathParser.term()`.
`T`	`visitPluralDateTimePrecision(FHIRPathParser.PluralDateTimePrecisionContext ctx)`	Visit a parse tree produced by `FHIRPathParser.pluralDateTimePrecision()`.
`T`	`visitPolarityExpression(FHIRPathParser.PolarityExpressionContext ctx)`	Visit a parse tree produced by the `polarityExpression` labeled alternative in `FHIRPathParser.expression()`.
`T`	`visitQualifiedIdentifier(FHIRPathParser.QualifiedIdentifierContext ctx)`	Visit a parse tree produced by `FHIRPathParser.qualifiedIdentifier()`.
`T`	`visitQuantity(FHIRPathParser.QuantityContext ctx)`	Visit a parse tree produced by `FHIRPathParser.quantity()`.
`T`	`visitQuantityLiteral(FHIRPathParser.QuantityLiteralContext ctx)`	Visit a parse tree produced by the `quantityLiteral` labeled alternative in `FHIRPathParser.literal()`.
`T`	`visitStringLiteral(FHIRPathParser.StringLiteralContext ctx)`	Visit a parse tree produced by the `stringLiteral` labeled alternative in `FHIRPathParser.literal()`.
`T`	`visitTermExpression(FHIRPathParser.TermExpressionContext ctx)`	Visit a parse tree produced by the `termExpression` labeled alternative in `FHIRPathParser.expression()`.
`T`	`visitThisInvocation(FHIRPathParser.ThisInvocationContext ctx)`	Visit a parse tree produced by the `thisInvocation` labeled alternative in `FHIRPathParser.invocation()`.
`T`	`visitTimeLiteral(FHIRPathParser.TimeLiteralContext ctx)`	Visit a parse tree produced by the `timeLiteral` labeled alternative in `FHIRPathParser.literal()`.
`T`	`visitTotalInvocation(FHIRPathParser.TotalInvocationContext ctx)`	Visit a parse tree produced by the `totalInvocation` labeled alternative in `FHIRPathParser.invocation()`.
`T`	`visitTypeExpression(FHIRPathParser.TypeExpressionContext ctx)`	Visit a parse tree produced by the `typeExpression` labeled alternative in `FHIRPathParser.expression()`.
`T`	`visitTypeSpecifier(FHIRPathParser.TypeSpecifierContext ctx)`	Visit a parse tree produced by `FHIRPathParser.typeSpecifier()`.
`T`	`visitUnionExpression(FHIRPathParser.UnionExpressionContext ctx)`	Visit a parse tree produced by the `unionExpression` labeled alternative in `FHIRPathParser.expression()`.
`T`	`visitUnit(FHIRPathParser.UnitContext ctx)`	Visit a parse tree produced by `FHIRPathParser.unit()`.

Methods inherited from interface org.antlr.v4.runtime.tree.ParseTreeVisitor
visit, visitChildren, visitErrorNode, visitTerminal

- Method Detail
  - visitIndexerExpression
```
T visitIndexerExpression(FHIRPathParser.IndexerExpressionContext ctx)
```
    Visit a parse tree produced by the indexerExpression labeled alternative in FHIRPathParser.expression().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitPolarityExpression
```
T visitPolarityExpression(FHIRPathParser.PolarityExpressionContext ctx)
```
    Visit a parse tree produced by the polarityExpression labeled alternative in FHIRPathParser.expression().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitAdditiveExpression
```
T visitAdditiveExpression(FHIRPathParser.AdditiveExpressionContext ctx)
```
    Visit a parse tree produced by the additiveExpression labeled alternative in FHIRPathParser.expression().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitMultiplicativeExpression
```
T visitMultiplicativeExpression(FHIRPathParser.MultiplicativeExpressionContext ctx)
```
    Visit a parse tree produced by the multiplicativeExpression labeled alternative in FHIRPathParser.expression().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitUnionExpression
```
T visitUnionExpression(FHIRPathParser.UnionExpressionContext ctx)
```
    Visit a parse tree produced by the unionExpression labeled alternative in FHIRPathParser.expression().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitOrExpression
```
T visitOrExpression(FHIRPathParser.OrExpressionContext ctx)
```
    Visit a parse tree produced by the orExpression labeled alternative in FHIRPathParser.expression().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitAndExpression
```
T visitAndExpression(FHIRPathParser.AndExpressionContext ctx)
```
    Visit a parse tree produced by the andExpression labeled alternative in FHIRPathParser.expression().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitMembershipExpression
```
T visitMembershipExpression(FHIRPathParser.MembershipExpressionContext ctx)
```
    Visit a parse tree produced by the membershipExpression labeled alternative in FHIRPathParser.expression().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitInequalityExpression
```
T visitInequalityExpression(FHIRPathParser.InequalityExpressionContext ctx)
```
    Visit a parse tree produced by the inequalityExpression labeled alternative in FHIRPathParser.expression().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitInvocationExpression
```
T visitInvocationExpression(FHIRPathParser.InvocationExpressionContext ctx)
```
    Visit a parse tree produced by the invocationExpression labeled alternative in FHIRPathParser.expression().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitEqualityExpression
```
T visitEqualityExpression(FHIRPathParser.EqualityExpressionContext ctx)
```
    Visit a parse tree produced by the equalityExpression labeled alternative in FHIRPathParser.expression().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitImpliesExpression
```
T visitImpliesExpression(FHIRPathParser.ImpliesExpressionContext ctx)
```
    Visit a parse tree produced by the impliesExpression labeled alternative in FHIRPathParser.expression().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitTermExpression
```
T visitTermExpression(FHIRPathParser.TermExpressionContext ctx)
```
    Visit a parse tree produced by the termExpression labeled alternative in FHIRPathParser.expression().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitTypeExpression
```
T visitTypeExpression(FHIRPathParser.TypeExpressionContext ctx)
```
    Visit a parse tree produced by the typeExpression labeled alternative in FHIRPathParser.expression().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitInvocationTerm
```
T visitInvocationTerm(FHIRPathParser.InvocationTermContext ctx)
```
    Visit a parse tree produced by the invocationTerm labeled alternative in FHIRPathParser.term().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitLiteralTerm
```
T visitLiteralTerm(FHIRPathParser.LiteralTermContext ctx)
```
    Visit a parse tree produced by the literalTerm labeled alternative in FHIRPathParser.term().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitExternalConstantTerm
```
T visitExternalConstantTerm(FHIRPathParser.ExternalConstantTermContext ctx)
```
    Visit a parse tree produced by the externalConstantTerm labeled alternative in FHIRPathParser.term().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitParenthesizedTerm
```
T visitParenthesizedTerm(FHIRPathParser.ParenthesizedTermContext ctx)
```
    Visit a parse tree produced by the parenthesizedTerm labeled alternative in FHIRPathParser.term().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitNullLiteral
```
T visitNullLiteral(FHIRPathParser.NullLiteralContext ctx)
```
    Visit a parse tree produced by the nullLiteral labeled alternative in FHIRPathParser.literal().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitBooleanLiteral
```
T visitBooleanLiteral(FHIRPathParser.BooleanLiteralContext ctx)
```
    Visit a parse tree produced by the booleanLiteral labeled alternative in FHIRPathParser.literal().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitStringLiteral
```
T visitStringLiteral(FHIRPathParser.StringLiteralContext ctx)
```
    Visit a parse tree produced by the stringLiteral labeled alternative in FHIRPathParser.literal().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitNumberLiteral
```
T visitNumberLiteral(FHIRPathParser.NumberLiteralContext ctx)
```
    Visit a parse tree produced by the numberLiteral labeled alternative in FHIRPathParser.literal().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitDateLiteral
```
T visitDateLiteral(FHIRPathParser.DateLiteralContext ctx)
```
    Visit a parse tree produced by the dateLiteral labeled alternative in FHIRPathParser.literal().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitDateTimeLiteral
```
T visitDateTimeLiteral(FHIRPathParser.DateTimeLiteralContext ctx)
```
    Visit a parse tree produced by the dateTimeLiteral labeled alternative in FHIRPathParser.literal().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitTimeLiteral
```
T visitTimeLiteral(FHIRPathParser.TimeLiteralContext ctx)
```
    Visit a parse tree produced by the timeLiteral labeled alternative in FHIRPathParser.literal().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitQuantityLiteral
```
T visitQuantityLiteral(FHIRPathParser.QuantityLiteralContext ctx)
```
    Visit a parse tree produced by the quantityLiteral labeled alternative in FHIRPathParser.literal().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitExternalConstant
```
T visitExternalConstant(FHIRPathParser.ExternalConstantContext ctx)
```
    Visit a parse tree produced by FHIRPathParser.externalConstant().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitMemberInvocation
```
T visitMemberInvocation(FHIRPathParser.MemberInvocationContext ctx)
```
    Visit a parse tree produced by the memberInvocation labeled alternative in FHIRPathParser.invocation().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitFunctionInvocation
```
T visitFunctionInvocation(FHIRPathParser.FunctionInvocationContext ctx)
```
    Visit a parse tree produced by the functionInvocation labeled alternative in FHIRPathParser.invocation().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitThisInvocation
```
T visitThisInvocation(FHIRPathParser.ThisInvocationContext ctx)
```
    Visit a parse tree produced by the thisInvocation labeled alternative in FHIRPathParser.invocation().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitIndexInvocation
```
T visitIndexInvocation(FHIRPathParser.IndexInvocationContext ctx)
```
    Visit a parse tree produced by the indexInvocation labeled alternative in FHIRPathParser.invocation().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitTotalInvocation
```
T visitTotalInvocation(FHIRPathParser.TotalInvocationContext ctx)
```
    Visit a parse tree produced by the totalInvocation labeled alternative in FHIRPathParser.invocation().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitFunction
```
T visitFunction(FHIRPathParser.FunctionContext ctx)
```
    Visit a parse tree produced by FHIRPathParser.function().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitParamList
```
T visitParamList(FHIRPathParser.ParamListContext ctx)
```
    Visit a parse tree produced by FHIRPathParser.paramList().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitQuantity
```
T visitQuantity(FHIRPathParser.QuantityContext ctx)
```
    Visit a parse tree produced by FHIRPathParser.quantity().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitUnit
```
T visitUnit(FHIRPathParser.UnitContext ctx)
```
    Visit a parse tree produced by FHIRPathParser.unit().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitDateTimePrecision
```
T visitDateTimePrecision(FHIRPathParser.DateTimePrecisionContext ctx)
```
    Visit a parse tree produced by FHIRPathParser.dateTimePrecision().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitPluralDateTimePrecision
```
T visitPluralDateTimePrecision(FHIRPathParser.PluralDateTimePrecisionContext ctx)
```
    Visit a parse tree produced by FHIRPathParser.pluralDateTimePrecision().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitTypeSpecifier
```
T visitTypeSpecifier(FHIRPathParser.TypeSpecifierContext ctx)
```
    Visit a parse tree produced by FHIRPathParser.typeSpecifier().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitQualifiedIdentifier
```
T visitQualifiedIdentifier(FHIRPathParser.QualifiedIdentifierContext ctx)
```
    Visit a parse tree produced by FHIRPathParser.qualifiedIdentifier().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result
  - visitIdentifier
```
T visitIdentifier(FHIRPathParser.IdentifierContext ctx)
```
    Visit a parse tree produced by FHIRPathParser.identifier().
    
    Parameters:
    
    ctx - the parse tree
    
    Returns:
    
    the visitor result

Interface FHIRPathVisitor<T>

Method Summary

Methods inherited from interface org.antlr.v4.runtime.tree.ParseTreeVisitor

Method Detail

visitIndexerExpression

visitPolarityExpression

visitAdditiveExpression

visitMultiplicativeExpression

visitUnionExpression

visitOrExpression

visitAndExpression

visitMembershipExpression

visitInequalityExpression

visitInvocationExpression

visitEqualityExpression

visitImpliesExpression

visitTermExpression

visitTypeExpression

visitInvocationTerm

visitLiteralTerm

visitExternalConstantTerm

visitParenthesizedTerm

visitNullLiteral

visitBooleanLiteral

visitStringLiteral

visitNumberLiteral

visitDateLiteral

visitDateTimeLiteral

visitTimeLiteral

visitQuantityLiteral

visitExternalConstant

visitMemberInvocation

visitFunctionInvocation

visitThisInvocation

visitIndexInvocation

visitTotalInvocation

visitFunction

visitParamList

visitQuantity

visitUnit

visitDateTimePrecision

visitPluralDateTimePrecision

visitTypeSpecifier

visitQualifiedIdentifier

visitIdentifier