software.amazon.awssdk.services.lambda.endpoints.internal

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 Summary

Modifier and Type	Method and Description
T	finishMultipartTemplate() Invoked at the conclusion of visiting a multipart template like `https://{Region}.{dnsSuffix}`.
T	startMultipartTemplate() Invoked prior to visiting a multipart template like `https://{Region}.{dnsSuffix}`.
T	visitDynamicElement(Expr value) Visit a dynamic element within a multipart template.
T	visitSingleDynamicTemplate(Expr value) The template contains a single dynamic element, eg.
T	visitStaticElement(String value) Visit a static element within a multipart template.
T	visitStaticTemplate(String value) The template contains a single static string, eg.

Method Detail

visitStaticTemplate

T visitStaticTemplate(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(Expr 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(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(Expr 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

startMultipartTemplate

T startMultipartTemplate()

Invoked prior to visiting a multipart template like `https://{Region}.{dnsSuffix}`. This function will be followed by invocations of visitStaticTemplate(String) and visitDynamicElement(Expr).

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