software.amazon.awssdk.services.dynamodb.streams.endpoints.internal

Class Scope<T>

java.lang.Object

software.amazon.awssdk.services.dynamodb.streams.endpoints.internal.Scope<T>

public class Scope<T>
extends Object

Constructor Summary

Constructors

Constructor and Description
Scope()

Method Summary

Modifier and Type	Method and Description
Optional<T>	eval(Expr expr) Search the fact stack for an explicitly calculated value for [expr]
T	expectValue(Identifier name)
Optional<T>	getValue(Identifier name)
<U> U	inScope(Supplier<U> func)
void	insert(Identifier name, T value)
void	insert(String name, T value)
void	insertFact(Expr name, T value)
void	pop()
void	push()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Scope

public Scope()

Method Detail

push

public void push()

pop

public void pop()

insert

public void insert(String name,
                   T value)

insert

public void insert(Identifier name,
                   T value)

insertFact

public void insertFact(Expr name,
                       T value)

inScope

public <U> U inScope(Supplier<U> func)

toString

public String toString()

Overrides:

toString in class Object

eval

public Optional<T> eval(Expr expr)

Search the fact stack for an explicitly calculated value for [expr]

Currently, this is only impacted by the `isSet` function which will record `T`, rather than Option<T> for its arguments

Parameters:

expr - The expression to evaluate

Returns:

The value from the scope

expectValue

public T expectValue(Identifier name)

getValue

public Optional<T> getValue(Identifier name)