Spring Core 6.1.4 · org.springframework.util.function.ThrowingFunction

Method Summary

Modifier and Type	Method and Description
public default R	apply(T the function argument t) Implements java.util.function.Function.apply. Default `Function#apply(Object)` that wraps any thrown checked exceptions (by default in a `RuntimeException`).
public default R	Returns: a result apply(T t, BiFunction<String, Exception, RuntimeException> `BiFunction` that wraps the given message and checked exception into a runtime exception exceptionWrapper) Applies this function to the given argument, wrapping any thrown checked exceptions using the given `exceptionWrapper`.
public R	Returns: the function result applyWithException(T the function argument t) Applies this function to the given argument, possibly throwing a checked exception.
public static < the type of the input to the function T, the type of the result of the function R> ThrowingFunction<T, R>	Returns: a new `ThrowingFunction` instance of(ThrowingFunction<T, R> the source function function) Lambda friendly convenience method that can be used to create a `ThrowingFunction` where the `apply(Object)` method wraps any checked exception thrown by the supplied lambda expression or method reference.
public static < the type of the input to the function T, the type of the result of the function R> ThrowingFunction<T, R>	Returns: a new `ThrowingFunction` instance of(ThrowingFunction<T, R> the source function function, BiFunction<String, Exception, RuntimeException> the exception wrapper to use exceptionWrapper) Lambda friendly convenience method that can be used to create a `ThrowingFunction` where the `apply(Object)` method wraps any thrown checked exceptions using the given `exceptionWrapper`.
public default ThrowingFunction<T, R>	Returns: the replacement `ThrowingFunction` instance throwing(BiFunction<String, Exception, RuntimeException> `BiFunction` that wraps the given message and checked exception into a runtime exception exceptionWrapper) Return a new `ThrowingFunction` where the `apply(Object)` method wraps any thrown checked exceptions using the given `exceptionWrapper`.

Inherited from java.util.function.Function:: andThen compose identity

Method Detail

apply back to summary

apply	back to summary
public default R apply(T t) Implements java.util.function.Function.apply. Default `Function#apply(Object)` that wraps any thrown checked exceptions (by default in a `RuntimeException`). Parameters t:T Doc from java.util.function.Function.apply. the function argument Returns:R Doc from java.util.function.Function.apply. the function result Annotations @Override See Also `java.util.function.Function#apply(java.lang.Object)`

public default R apply(T t)

Implements java.util.function.Function.apply.

Default Function#apply(Object) that wraps any thrown checked exceptions (by default in a RuntimeException).

Parameters

t:T

Doc from java.util.function.Function.apply.

the function argument

Returns:R

Doc from java.util.function.Function.apply.

the function result

Annotations

@Override

apply back to summary

apply	back to summary
public default R apply(T t, BiFunction<String, Exception, RuntimeException> exceptionWrapper) Applies this function to the given argument, wrapping any thrown checked exceptions using the given `exceptionWrapper`. Parameters exceptionWrapper:BiFunction<String, Exception, RuntimeException> `BiFunction` that wraps the given message and checked exception into a runtime exception Returns:R a result

public default R apply(T t, BiFunction<String, Exception, RuntimeException> exceptionWrapper)

Applies this function to the given argument, wrapping any thrown checked exceptions using the given exceptionWrapper.

Parameters

exceptionWrapper:BiFunction<String, Exception, RuntimeException>: BiFunction that wraps the given message and checked exception into a runtime exception

Returns:R

a result

applyWithException	back to summary
public R applyWithException(T t) throws Exception Applies this function to the given argument, possibly throwing a checked exception. Parameters t:T the function argument Returns:R the function result Exceptions Exception: on error

applyWithException

back to summary

public R applyWithException(T t) throws Exception

Applies this function to the given argument, possibly throwing a checked exception.

Parameters

t:T: the function argument

Returns:R

the function result

Exceptions

Exception:: on error

of back to summary

of	back to summary
public static <T, R> ThrowingFunction<T, R> of(ThrowingFunction<T, R> function) Lambda friendly convenience method that can be used to create a `ThrowingFunction` where the `apply(Object)` method wraps any checked exception thrown by the supplied lambda expression or method reference. This method can be especially useful when working with method references. It allows you to easily convert a method that throws a checked exception into an instance compatible with a regular `Function`. For example: stream.map(ThrowingFunction.of(Example::methodThatCanThrowCheckedException)); Parameters <T> the type of the input to the function <R> the type of the result of the function function:ThrowingFunction<T, R> the source function Returns:ThrowingFunction<T, R> a new `ThrowingFunction` instance

public static <T, R> ThrowingFunction<T, R> of(ThrowingFunction<T, R> function)

Lambda friendly convenience method that can be used to create a ThrowingFunction where the apply(Object) method wraps any checked exception thrown by the supplied lambda expression or method reference.

This method can be especially useful when working with method references. It allows you to easily convert a method that throws a checked exception into an instance compatible with a regular Function.

For example:

stream.map(ThrowingFunction.of(Example::methodThatCanThrowCheckedException));

Parameters

<T>: the type of the input to the function
<R>: the type of the result of the function
function:ThrowingFunction<T, R>: the source function

Returns:ThrowingFunction<T, R>

a new ThrowingFunction instance

of back to summary

of	back to summary
public static <T, R> ThrowingFunction<T, R> of(ThrowingFunction<T, R> function, BiFunction<String, Exception, RuntimeException> exceptionWrapper) Lambda friendly convenience method that can be used to create a `ThrowingFunction` where the `apply(Object)` method wraps any thrown checked exceptions using the given `exceptionWrapper`. This method can be especially useful when working with method references. It allows you to easily convert a method that throws a checked exception into an instance compatible with a regular `Function`. For example: stream.map(ThrowingFunction.of(Example::methodThatCanThrowCheckedException, IllegalStateException::new)); Parameters <T> the type of the input to the function <R> the type of the result of the function function:ThrowingFunction<T, R> the source function exceptionWrapper:BiFunction<String, Exception, RuntimeException> the exception wrapper to use Returns:ThrowingFunction<T, R> a new `ThrowingFunction` instance

public static <T, R> ThrowingFunction<T, R> of(ThrowingFunction<T, R> function, BiFunction<String, Exception, RuntimeException> exceptionWrapper)

Lambda friendly convenience method that can be used to create a ThrowingFunction where the apply(Object) method wraps any thrown checked exceptions using the given exceptionWrapper.

For example:

stream.map(ThrowingFunction.of(Example::methodThatCanThrowCheckedException, IllegalStateException::new));

Parameters

<T>: the type of the input to the function
<R>: the type of the result of the function
function:ThrowingFunction<T, R>: the source function
exceptionWrapper:BiFunction<String, Exception, RuntimeException>: the exception wrapper to use

Returns:ThrowingFunction<T, R>

a new ThrowingFunction instance

throwing back to summary

throwing	back to summary
public default ThrowingFunction<T, R> throwing(BiFunction<String, Exception, RuntimeException> exceptionWrapper) Return a new `ThrowingFunction` where the `apply(Object)` method wraps any thrown checked exceptions using the given `exceptionWrapper`. Parameters exceptionWrapper:BiFunction<String, Exception, RuntimeException> `BiFunction` that wraps the given message and checked exception into a runtime exception Returns:ThrowingFunction<T, R> the replacement `ThrowingFunction` instance

public default ThrowingFunction<T, R> throwing(BiFunction<String, Exception, RuntimeException> exceptionWrapper)

Return a new ThrowingFunction where the apply(Object) method wraps any thrown checked exceptions using the given exceptionWrapper.

Parameters

exceptionWrapper:BiFunction<String, Exception, RuntimeException>: BiFunction that wraps the given message and checked exception into a runtime exception

Returns:ThrowingFunction<T, R>

the replacement ThrowingFunction instance

public Interface ThrowingFunction<T, R>

Method Summary

Method Detail