Package io.atlassian.fugue.retry

Class RetryFactory

java.lang.Object

io.atlassian.fugue.retry.RetryFactory

public class RetryFactory
extends java.lang.Object

Provides factory methods for RetryFunction, RetryTask, and RetrySupplier. These classes can be used when a task is known to fail on occasion and no other workaround is known. This class is not instantiable.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	RetryFactory()

Method Summary

Modifier and Type	Method	Description
static java.lang.Runnable	create(java.lang.Runnable task, int tries)	Decorates a runnable so that it retries a number of times before being allowed to fail.
static java.lang.Runnable	create(java.lang.Runnable task, int tries, ExceptionHandler handler)	Decorates a runnable so that it retries a number of times before being allowed to fail.
static java.lang.Runnable	create(java.lang.Runnable task, int tries, ExceptionHandler handler, long backoff)	Decorates a runnable so that it retries a number of times before being allowed to fail, backing off exponentially in time.
static <A,B> java.util.function.Function<A,B>	create(java.util.function.Function<A,B> function, int tries)	Decorates a function so that it retries a number of times before being allowed to fail.
static <A,B> java.util.function.Function<A,B>	create(java.util.function.Function<A,B> function, int tries, ExceptionHandler handler)	Decorates a function so that it retries a number of times before being allowed to fail.
static <A,B> java.util.function.Function<A,B>	create(java.util.function.Function<A,B> function, int tries, ExceptionHandler handler, long backoff)	Decorates a function so that it retries a number of times before being allowed to fail.
static <A> java.util.function.Supplier<A>	create(java.util.function.Supplier<A> supplier, int tries)	Decorates a supplier so that it retries a number of times before being allowed to fail.
static <A> java.util.function.Supplier<A>	create(java.util.function.Supplier<A> supplier, int tries, ExceptionHandler handler)	Decorates a supplier so that it retries a number of times before being allowed to fail.
static <A> java.util.function.Supplier<A>	create(java.util.function.Supplier<A> supplier, int tries, ExceptionHandler handler, long backoff)	Decorates a supplier so that it retries a number of times before being allowed to fail, backing-off in time exponentially.

Methods inherited from class java.lang.Object

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

Constructor Detail

RetryFactory

private RetryFactory()

Method Detail

create

public static java.lang.Runnable create(java.lang.Runnable task,
                                        int tries)

Decorates a runnable so that it retries a number of times before being allowed to fail.

Parameters:

task - which will be wrapped for retrial. It should be idempotent on failure.

tries - the number of times to re-attempt the call

Returns:

a runnable which can be used to call another runnable multiple times when that runnable may fail sporadically

create

public static java.lang.Runnable create(java.lang.Runnable task,
                                        int tries,
                                        ExceptionHandler handler)

Decorates a runnable so that it retries a number of times before being allowed to fail.

Parameters:

task - which will be wrapped for retrial. It should be idempotent on failure.

tries - the number of times to re-attempt the call

handler - passed any exceptions that are encountered

Returns:

a runnable which can be used to call another runnable multiple times when that runnable may fail sporadically

create

public static java.lang.Runnable create(java.lang.Runnable task,
                                        int tries,
                                        ExceptionHandler handler,
                                        long backoff)

Decorates a runnable so that it retries a number of times before being allowed to fail, backing off exponentially in time.

Parameters:

task - which will be wrapped for retrial. It should be idempotent on failure.

tries - the number of times to re-attempt the call

handler - which acts on exceptions thrown by the wrapped supplier

backoff - time to wait in millis each time

Returns:

a runnable which can be used to call another runnable multiple times when that runnable may fail sporadically

create

public static <A> java.util.function.Supplier<A> create(java.util.function.Supplier<A> supplier,
                                                        int tries)

Decorates a supplier so that it retries a number of times before being allowed to fail.

Type Parameters:

A - The type of the object returned by supplier

Parameters:

supplier - which will be wrapped for retrial. It should be idempotent on failure.

tries - the number of times to re-attempt the call

Returns:

a supplier which can be used to call another supplier multiple times when that supplier may fail sporadically

create

public static <A> java.util.function.Supplier<A> create(java.util.function.Supplier<A> supplier,
                                                        int tries,
                                                        ExceptionHandler handler)

Decorates a supplier so that it retries a number of times before being allowed to fail.

Type Parameters:

A - The type of the object returned by supplier

Parameters:

supplier - which will be wrapped for retrial. It should be idempotent on failure.

tries - the number of times to re-attempt the call

handler - which acts on exceptions thrown by the wrapped supplier

Returns:

a supplier which can be used to call another supplier multiple times when that supplier may fail sporadically

create

public static <A> java.util.function.Supplier<A> create(java.util.function.Supplier<A> supplier,
                                                        int tries,
                                                        ExceptionHandler handler,
                                                        long backoff)

Decorates a supplier so that it retries a number of times before being allowed to fail, backing-off in time exponentially.

Type Parameters:

A - The type of the object returned by supplier

Parameters:

supplier - which will be wrapped for retrial. It should be idempotent on failure.

tries - the number of times to re-attempt the call

handler - which acts on exceptions thrown by the wrapped supplier

backoff - time to wait in millis each time

Returns:

a supplier which can be used to call another supplier multiple times when that supplier may fail sporadically

create

public static <A,B> java.util.function.Function<A,B> create(java.util.function.Function<A,B> function,
                                                                        int tries)

Decorates a function so that it retries a number of times before being allowed to fail.

Type Parameters:

A - the type of the parameter the function accepts

B - the type of the result of the function's apply method

Parameters:

function - which will be wrapped for retrial. It should be idempotent on failure.

tries - the number of times to re-attempt the call

Returns:

a function which can be used to invoke another function multiple times when that function may fail sporadically

create

public static <A,B> java.util.function.Function<A,B> create(java.util.function.Function<A,B> function,
                                                                        int tries,
                                                                        ExceptionHandler handler)

Decorates a function so that it retries a number of times before being allowed to fail.

Type Parameters:

A - the type of the parameter the function accepts

B - the type of the result of the function's apply method

Parameters:

function - which will be wrapped for retrial. It should be idempotent on failure.

tries - the number of times to re-attempt the call

handler - which acts on exceptions thrown by the wrapped supplier

Returns:

a function which can be used to invoke another function multiple times when that function may fail sporadically

create

public static <A,B> java.util.function.Function<A,B> create(java.util.function.Function<A,B> function,
                                                                        int tries,
                                                                        ExceptionHandler handler,
                                                                        long backoff)

Decorates a function so that it retries a number of times before being allowed to fail.

Type Parameters:

A - the type of the parameter the function accepts

B - the type of the result of the function's apply method

Parameters:

function - which will be wrapped for retrial. It should be idempotent on failure.

tries - the number of times to re-attempt the call

handler - which acts on exceptions thrown by the wrapped supplier

backoff - time to wait in millis each time

Returns:

a function which can be used to invoke another function multiple times when that function may fail sporadically