Uses of Interface
ratpack.func.Predicate

Packages that use Predicate

Package	Description
ratpack.core.handling	The handling of application requests.
ratpack.core.service	Services participate in the application start/stop lifecycle.
ratpack.exec	The execution management.
ratpack.exec.stream	Support for reactive streams.
ratpack.func
ratpack.groovy.handling	Groovy specific extensions to classes in the ratpack.core.handling package.

Uses of Predicate in ratpack.core.handling

Methods in ratpack.core.handling with parameters of type Predicate

Modifier and Type	Method	Description
default Chain	Chain.onlyIf(Predicate<? super Context> test, Class<? extends Handler> handler)
default Chain	Chain.onlyIf(Predicate<? super Context> test, Handler handler)	Invokes the given handler only if the predicate passes.
static Handler	Handlers.onlyIf(Predicate<? super Context> test, Handler handler)	Creates a handler that delegates to the given handler if the predicate applies to the context.
default Chain	Chain.when(Predicate<? super Context> test, Class<? extends Action<? super Chain>> action)
default Chain	Chain.when(Predicate<? super Context> test, Class<? extends Action<? super Chain>> onTrue, Class<? extends Action<? super Chain>> onFalse)
default Chain	Chain.when(Predicate<? super Context> test, Action<? super Chain> action)
default Chain	Chain.when(Predicate<? super Context> test, Action<? super Chain> onTrue, Action<? super Chain> onFalse)
static Handler	Handlers.when(Predicate<? super Context> test, Handler handler)	Creates a handler that inserts and delegates the given handler if the predicate applies to the context.
static Handler	Handlers.whenOrElse(Predicate<? super Context> test, Handler ifHandler, Handler elseHandler)	Creates a handler that inserts and delegates to the appropriate handler depending if the predicate applies to the context.

Uses of Predicate in ratpack.core.service

Methods in ratpack.core.service with parameters of type Predicate

Modifier and Type	Method	Description
default <T1,T2> ServiceDependenciesSpec	ServiceDependenciesSpec.dependsOn(Class<T1> dependentsType, Predicate<? super T1> dependents, Class<T2> dependenciesType, Predicate<? super T2> dependencies)	Specifies that all services that are of the given dependentsType that match the dependents predicate are dependent on all services that are of the dependenciesType that match the dependencies predicate.
ServiceDependenciesSpec	ServiceDependenciesSpec.dependsOn(Predicate<? super Service> dependents, Predicate<? super Service> dependencies)	Specifies that all services that match the dependents predicate are dependent on all services that match the dependencies predicate.

Uses of Predicate in ratpack.exec

Methods in ratpack.exec with parameters of type Predicate

Modifier and Type	Method	Description
default Promise<T>	Promise.cacheIf(Predicate<? super T> shouldCache)	Caches the promise value and provides it to all future subscribers, if it satisfies the predicate.
default Promise<T>	Promise.cacheResultIf(Predicate<? super ExecResult<T>> shouldCache)	Caches the promise result eternally and provide it to all future subscribers, if it satisfies the predicate.
default Promise<T>	Promise.flatMapError(Predicate<? super Throwable> predicate, Function<? super Throwable,? extends Promise<T>> function)	Transforms a failure of the given type (potentially into a value) by applying the given function to it.
default <O> Promise<O>	Promise.flatMapIf(Predicate<? super T> predicate, Function<? super T,? extends Promise<O>> onTrue, Function<? super T,? extends Promise<O>> onFalse)	Transforms the promised value by applying one of the given functions to it that returns a promise for the transformed value, depending if it satisfies the predicate.
default Promise<T>	Promise.flatMapIf(Predicate<? super T> predicate, Function<? super T,? extends Promise<T>> transformer)	Transforms the promised value by applying the given function to it that returns a promise for the transformed value, if it satisfies the predicate.
default Promise<T>	Promise.mapError(Predicate<? super Throwable> predicate, Function<? super Throwable,? extends T> function)	Transforms a failure of the given type (potentially into a value) by applying the given function to it.
default <O> Promise<O>	Promise.mapIf(Predicate<? super T> predicate, Function<? super T,? extends O> onTrue, Function<? super T,? extends O> onFalse)	Transforms the promised value by applying one of the given functions to it, depending if it satisfies the predicate.
default Promise<T>	Promise.mapIf(Predicate<? super T> predicate, Function<? super T,? extends T> transformer)	Transforms the promised value by applying the given function to it, if it satisfies the predicate.
default Promise<T>	Promise.nextOpIf(Predicate<? super T> predicate, Function<? super T,? extends Operation> function)	Executes the operation returned by the given function, if it satisfies the predicate.
Operation	Operation.onError(Predicate<? super Throwable> predicate, Action<? super Throwable> errorHandler)	Specifies the action to take if the an error occurs performing the operation that the given predicate applies to.
default Promise<T>	Promise.onError(Predicate<? super Throwable> predicate, Action<? super Throwable> errorHandler)	Specifies the action to take if the an error occurs trying to produce the promised value, that the given predicate applies to.
default Promise<T>	Promise.retryIf(Predicate<? super Throwable> predicate, RetryPolicy retryPolicy, BiAction<? super Integer,? super Throwable> onError)	Causes this yielding the promised value to be retried on error, under the rules of provided retryPolicy, and if the given Predicate matches the error thrown.
default Promise<T>	Promise.route(Predicate<? super T> predicate, Action<? super T> action)	Allows the promised value to be handled specially if it meets the given predicate, instead of being handled by the promise subscriber.

Uses of Predicate in ratpack.exec.stream

Methods in ratpack.exec.stream with parameters of type Predicate

Modifier and Type	Method	Description
static <T> TransformablePublisher<T>	Streams.filter(Publisher<T> input, Predicate<? super T> filter)	Returns a publisher that filters items from the given input stream by applying the given filter predicate.
default TransformablePublisher<T>	TransformablePublisher.filter(Predicate<? super T> filter)	See Streams.filter(Publisher, Predicate).
static <T> TransformablePublisher<T>	Streams.takeWhile(Predicate<T> condition, Publisher<T> upstreamPublisher)	Returns a publisher that emits elements from the given publisher, while the condition is true.
default TransformablePublisher<T>	TransformablePublisher.takeWhile(Predicate<T> condition)	See Streams.takeWhile(Predicate, Publisher).

Uses of Predicate in ratpack.func

Fields in ratpack.func declared as Predicate

Modifier and Type	Field	Description
static Predicate<Object>	Predicate.FALSE	A predicate that always returns false, regardless of the input object.
static Predicate<Object>	Predicate.TRUE	A predicate that always returns true, regardless of the input object.

Methods in ratpack.func that return Predicate

Modifier and Type	Method	Description
static <T> Predicate<T>	Predicate.alwaysFalse()	A predicate that always returns false, regardless of the input object.
static <T> Predicate<T>	Predicate.alwaysTrue()	A predicate that always returns true, regardless of the input object.
static <T> Predicate<T>	Predicate.from(Predicate<T> predicate)	Creates a predicate from a JDK predicate.
static <T> Predicate<T>	Predicate.fromGuava(com.google.common.base.Predicate<T> predicate)	Creates a predicate from a Guava predicate.

Methods in ratpack.func with parameters of type Predicate

Modifier and Type	Method	Description
Action.ConditionalSpec<I>	Action.ConditionalSpec.when(Predicate<? super I> predicate, Action<? super I> action)
static <I> Action<I>	Action.when(Predicate<? super I> predicate, Action<? super I> action)	Creates an action that delegates to the given action if the given predicate applies, else delegates to Action.noop().
static <I> Action<I>	Action.when(Predicate<? super I> predicate, Action<? super I> onTrue, Action<? super I> onFalse)	Creates an action that delegates to the first action if the given predicate applies, else the second action.
Function.ConditionalSpec<I,O>	Function.ConditionalSpec.when(Predicate<? super I> predicate, Function<? super I,? extends O> function)	Adds a conditional function.
static <I> Function<I,I>	Function.when(Predicate<? super I> predicate, Function<? super I,? extends I> function)	Creates a function that delegates to the given function if the given predicate applies, else delegates to Function.identity().
static <I,O> Function<I,O>	Function.when(Predicate<? super I> predicate, Function<? super I,? extends O> onTrue, Function<? super I,? extends O> onFalse)	Creates a function that delegates to the first function if the given predicate applies, else the second function.

Uses of Predicate in ratpack.groovy.handling

Methods in ratpack.groovy.handling with parameters of type Predicate

Modifier and Type	Method	Description
default GroovyChain	GroovyChain.onlyIf(Predicate<? super Context> test, Closure<?> handler)
default GroovyChain	GroovyChain.onlyIf(Predicate<? super Context> test, Class<? extends Handler> handler)
default GroovyChain	GroovyChain.onlyIf(Predicate<? super Context> test, Handler handler)	Invokes the given handler only if the predicate passes.
default GroovyChain	GroovyChain.when(Predicate<? super Context> test, Closure<?> handlers)
default GroovyChain	GroovyChain.when(Predicate<? super Context> test, Closure<?> ifHandlers, Closure<?> elseHandlers)
default GroovyChain	GroovyChain.when(Predicate<? super Context> test, Class<? extends Action<? super Chain>> action)
default GroovyChain	GroovyChain.when(Predicate<? super Context> test, Class<? extends Action<? super Chain>> onTrue, Class<? extends Action<? super Chain>> onFalse)
default GroovyChain	GroovyChain.when(Predicate<? super Context> test, Action<? super Chain> action)
default GroovyChain	GroovyChain.when(Predicate<? super Context> test, Action<? super Chain> onTrue, Action<? super Chain> onFalse)