org.lsst.ccs.utilities.functions

Class Cocoon

java.lang.Object

org.lsst.ccs.utilities.functions.Cocoon

public class Cocoon
extends Object

a facility to create objects that are java.util.function from FunctionalInterfaces (or closures) that throw an Exception. Typical use can be:

     try {
          myArrayList.forEach(Cocoon.consumer(MyClass::methodThatThrowsMyException)) ;

     } catch (MyException exc) {

     }
 

note that if an exception is fired the forEach will be terminated.

Author:

bamade

Constructor Summary

Constructors

Constructor and Description
Cocoon()

Method Summary

Modifier and Type	Method and Description
static <X,T extends Throwable> java.util.function.Consumer<X>	consumer(TouchyConsumer<X,T> touchyConsumer) creates an amiable Consumer out of a pesky one.
static <T extends Throwable> T	forgetThrowsClause(Throwable t) this hack is to disable temporarily the compiler's control over checked exception.
static <X,R,T extends Throwable> java.util.function.Function<X,R>	function(TouchyFunction<X,R,T> touchyFunction)
static <R,T extends Throwable> java.util.function.Supplier<R>	supplier(TouchySupplier<R,T> touchySupplier)

Methods inherited from class java.lang.Object

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

Constructor Detail

Cocoon

public Cocoon()

Method Detail

forgetThrowsClause

public static <T extends Throwable> T forgetThrowsClause(Throwable t)
                                                  throws T extends Throwable

this hack is to disable temporarily the compiler's control over checked exception. use sparingly.

Type Parameters:

T -

Parameters:

t -

Returns:

Throws:

T

T extends Throwable

consumer

public static <X,T extends Throwable> java.util.function.Consumer<X> consumer(TouchyConsumer<X,T> touchyConsumer)
                                                                       throws T extends Throwable

creates an amiable Consumer out of a pesky one.

Type Parameters:

X -

T -

Parameters:

touchyConsumer -

Returns:

Throws:

T

T extends Throwable

function

public static <X,R,T extends Throwable> java.util.function.Function<X,R> function(TouchyFunction<X,R,T> touchyFunction)
                                                                           throws T extends Throwable

Throws:

T extends Throwable

supplier

public static <R,T extends Throwable> java.util.function.Supplier<R> supplier(TouchySupplier<R,T> touchySupplier)
                                                                       throws T extends Throwable

Throws:

T extends Throwable