Package org.apache.tinkerpop.gremlin.language.grammar

Interface VariableResolver

All Superinterfaces:

BiFunction<String,GremlinParser.VariableContext,Object>

All Known Implementing Classes:

VariableResolver.DefaultVariableResolver, VariableResolver.NoVariableResolver, VariableResolver.NullVariableResolver

public interface VariableResolver
extends BiFunction<String,GremlinParser.VariableContext,Object>

Resolves parameters in Gremlin to objects.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	VariableResolver.DefaultVariableResolver	Allows for a provided variable set in the form of a Map, where the keys are variable names and the values are the parameter values to be injected into the traversal in their place.
static class	VariableResolver.NoVariableResolver	This VariableResolver implementation throws exceptions for all variable names.
static class	VariableResolver.NullVariableResolver	This VariableResolver simply provides a null value for all variable names.

Method Summary

Modifier and Type	Method	Description
Object	apply(String varName, GremlinParser.VariableContext variableContext)	This function resolves a variable name and the given parsers context to an object.

Methods inherited from interface java.util.function.BiFunction

andThen

Method Detail

apply

Object apply(String varName,
             GremlinParser.VariableContext variableContext)

This function resolves a variable name and the given parsers context to an object.

Specified by:

apply in interface BiFunction<String,GremlinParser.VariableContext,Object>