. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 1.4.5. Filtering Handler Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . filter creates a “shallow” ETag by caching the content written to the response and computing an MD5 hash from it. The next time a client sends, it does the same, but it also compares the computed value WebFlux Spring Web MVC includes WebMvc.fn, a lightweight functional programming model in which functions are used to route and handle requests and contracts are designed for immutability. It is an alternative

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 1.5.5. Filtering Handler Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Web MVC Spring WebFlux includes WebFlux.fn, a lightweight functional programming model in which functions are used to route and handle requests and contracts are designed for immutability. It is an alternative RouterFunction is the equivalent of a @RequestMapping annotation, but with the major difference that router functions provide not just data, but also behavior. RouterFunctions.route() provides a router builder that

configuration configures a cache busting solution for all static resources, effectively adding a content hash, such as , in URLs: Properties ServerRequestObservationConvention. TIP In some cases, exceptions handled in controllers and handler functions are not recorded as request metrics tags. Applications can opt in and record exceptions by setting creating/updating functions. true spring.pulsar.function.propagate- stop-failures Whether to throw an exception if any failure is encountered during server shutdown while enforcing stop policy on functions. false

Mathematical operators Assignment Types Constructors Variables The #this and #root variables Functions Bean references Ternary Operator (If-Then-Else) The Elvis Operator Safe Navigation operator Collection references Array construction Inline lists Inline maps Ternary operator Variables User defined functions Collection projection Collection selection Templated expressions Expression Evaluation using Spring’s You can also specify variables and functions that will be used in the expression using the methods setVariable() and registerFunction(). The use of variables and functions are described in the language reference

#this and #root variables .................................................................. 201 Functions ............................................................................................... Spring Framework 189 • Inline lists • Inline maps • Ternary operator • Variables • User defined functions • Collection projection • Collection selection • Templated expressions 10.3 Expression Evaluation You can also specify variables and functions that will be used in the expression using the methods setVariable() and registerFunction(). The use of variables and functions are described in the language reference

configuration configures a cache busting solution for all static resources, effectively adding a content hash, such as , in URLs: Properties ServerRequestObservationConvention. TIP In some cases, exceptions handled in controllers and handler functions are not recorded as request metrics tags. Applications can opt in and record exceptions by setting creating/updating functions. true spring.pulsar.function.propagate- stop-failures Whether to throw an exception if any failure is encountered during server shutdown while enforcing stop policy on functions. false

configuration configures a cache busting solution for all static resources, effectively adding a content hash, such as , in URLs: Properties ServerRequestObservationConvention. TIP In some cases, exceptions handled in controllers and handler functions are not recorded as request metrics tags. Applications can opt in and record exceptions by setting creating/updating functions. true spring.pulsar.function.propagate- stop-failures Whether to throw an exception if any failure is encountered during server shutdown while enforcing stop policy on functions. false

configuration configures a cache busting solution for all static resources, effectively adding a content hash, such as , in URLs: Properties ServerRequestObservationConvention. TIP In some cases, exceptions handled in controllers and handler functions are not recorded as request metrics tags. Applications can opt in and record exceptions by setting creating/updating functions. true spring.pulsar.function.propagate- stop-failures Whether to throw an exception if any failure is encountered during server shutdown while enforcing stop policy on functions. false

configuration configures a cache busting solution for all static resources, effectively adding a content hash, such as , in URLs: Properties ServerRequestObservationConvention. TIP In some cases, exceptions handled in controllers and handler functions are not recorded as request metrics tags. Applications can opt in and record exceptions by setting creating/updating functions. true spring.pulsar.function.propagate- stop-failures Whether to throw an exception if any failure is encountered during server shutdown while enforcing stop policy on functions. false

configuration configures a cache busting solution for all static resources, effectively adding a content hash, such as , in URLs: Properties ServerRequestObservationConvention. TIP In some cases, exceptions handled in controllers and handler functions are not recorded as request metrics tags. Applications can opt in and record exceptions by setting creating/updating functions. true spring.pulsar.function.propagate- stop-failures Whether to throw an exception if any failure is encountered during server shutdown while enforcing stop policy on functions. false