Module powerunit.exceptions

Package ch.powerunit.extensions.exceptions

Class CommonsCollections4Helper

java.lang.Object

ch.powerunit.extensions.exceptions.CommonsCollections4Helper

public final class CommonsCollections4Helper
extends Object

This class provides several helper methods for the functional interface of the commons-collections4.

This class is only available if commons-collections4 is available

The mapping between the interface from commons-collections4 and this library is the following :

commons-collections4	powerunit-extensions-exceptions
Predicate	PredicateWithException
Factory	SupplierWithException
Transformer	FunctionWithException
Closure	ConsumerWithException

Since:

2.2.0

Method Summary

Modifier and Type	Method	Description
static <T> org.apache.commons.collections4.Closure<T>	asClosure(ConsumerWithException<T,?> consumer)	Transforms a ConsumerWithException to the one from commons-collections.
static <T> org.apache.commons.collections4.Factory<T>	asFactory(SupplierWithException<T,?> supplier)	Transforms a SupplierWithException to the one from commons-collections.
static <T> org.apache.commons.collections4.Predicate<T>	asPredicate(PredicateWithException<T,?> predicate)	Transforms a PredicateWithException to the one from commons-collections.
static <I,O> org.apache.commons.collections4.Transformer<I,O>	asTransformer(FunctionWithException<I,O,?> function)	Transforms a FunctionWithException to the one from commons-collections.

Methods inherited from class java.lang.Object

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

Method Detail

asPredicate

public static <T> org.apache.commons.collections4.Predicate<T> asPredicate(PredicateWithException<T,?> predicate)

Transforms a PredicateWithException to the one from commons-collections.

Type Parameters:

T - the type of the input argument for the predicate

Parameters:

predicate - the PredicateWithException to be transformed to the one from commons-collections.

Returns:

the predicate from commons-collections. The ClassCastException and IllegalArgumentException are not wrapped and the other exception are wrapped in a FunctorException.

Throws:

NoClassDefFoundError - In case the commons-collections4 library is not available.

NullPointerException - if predicate is null.

See Also:

Predicate

asFactory

public static <T> org.apache.commons.collections4.Factory<T> asFactory(SupplierWithException<T,?> supplier)

Transforms a SupplierWithException to the one from commons-collections.

Type Parameters:

T - the type of the result of the supplier

Parameters:

supplier - the SupplierWithException to be transformed to the one from commons-collections.

Returns:

the factory from commons-collections. The exception are wrapped in a FunctorException.

Throws:

NoClassDefFoundError - In case the commons-collections4 library is not available.

NullPointerException - if supplier is null.

See Also:

Factory

asTransformer

public static <I,O> org.apache.commons.collections4.Transformer<I,O> asTransformer(FunctionWithException<I,O,?> function)

Transforms a FunctionWithException to the one from commons-collections.

Type Parameters:

I - the input argument type of the function

O - the result type of the function

Parameters:

function - the FunctionWithException to be transformed to the one from commons-collections.

Returns:

the transformer from commons-collections. The ClassCastException and IllegalArgumentException are not wrapped and the other exception are wrapped in a FunctorException.

Throws:

NoClassDefFoundError - In case the commons-collections4 library is not available.

NullPointerException - if function is null.

See Also:

Transformer

asClosure

public static <T> org.apache.commons.collections4.Closure<T> asClosure(ConsumerWithException<T,?> consumer)

Transforms a ConsumerWithException to the one from commons-collections.

Type Parameters:

T - the type of the input argument for the consumer

Parameters:

consumer - the ConsumerWithException to be transformed to the one from commons-collections.

Returns:

the closure from commons-collections. The ClassCastException and IllegalArgumentException are not wrapped and the other exception are wrapped in a FunctorException.

Throws:

NoClassDefFoundError - In case the commons-collections4 library is not available.

NullPointerException - if consumer is null.

See Also:

Closure