Package software.amazon.smithy.rulesengine.language.syntax.expressions

Interface TemplateVisitor<T>

  • Type Parameters:
    T - The return type of this visitor
    public interface TemplateVisitor<T>
    For code generating from a template, use a `TemplateVisitor`. Template visitor is written to enable optimized behavior for static templates with no dynamic components.

    • Method Detail

      • visitStaticTemplate

        T visitStaticTemplate​(java.lang.String value)
        The template contains a single static string, eg. "https://mystaticendpoing.com"
        Parameters:
        value - The static value of the template.
        Returns:
        T

      • visitSingleDynamicTemplate

        T visitSingleDynamicTemplate​(Expression value)
        The template contains a single dynamic element, eg. `{Region}`. In this case, string formatting is not required. The type of the value is guaranteed to be a string.
        Parameters:
        value - The single expression that represents this template.
        Returns:
        T

      • visitStaticElement

        T visitStaticElement​(java.lang.String value)
        Visit a static element within a multipart template. This will only be called after startMultipartTemplate() has been invoked.
        Parameters:
        value - A static element within a larger template
        Returns:
        T

      • visitDynamicElement

        T visitDynamicElement​(Expression value)
        Visit a dynamic element within a multipart template. This will only be called after startMultipartTemplate() has been invoked.
        Parameters:
        value - The dynamic template value
        Returns:
        T

      • finishMultipartTemplate

        T finishMultipartTemplate()
        Invoked at the conclusion of visiting a multipart template like `https://{Region}.{dnsSuffix}`. This allows implementations to do something like call `string.join()` or `stringbuilder.toString()`.
        Returns:
        T