com.aol.cyclops.internal.comprehensions.comprehenders

Class EvalComprehender

java.lang.Object

com.aol.cyclops.internal.comprehensions.comprehenders.EvalComprehender

All Implemented Interfaces:

Comprehender<Eval>, ValueComprehender<Eval>

public class EvalComprehender
extends java.lang.Object
implements ValueComprehender<Eval>

Constructor Summary

Constructors

Constructor and Description
EvalComprehender()

Method Summary

Modifier and Type	Method and Description
Eval	empty()
java.lang.Object	filter(Eval t, java.util.function.Predicate p) Wrapper around filter
java.lang.Object	flatMap(Eval t, java.util.function.Function fn)
java.lang.Class	getTargetClass()
java.lang.Object	map(Eval t, java.util.function.Function fn) Wrapper around map
Eval	of(java.lang.Object o)
java.lang.Object	resolveForCrossTypeFlatMap(Comprehender comp, Eval apply) Answers the question how should this type behave when returned in a flatMap function by another type? For example - Optional uses comp.of(opt.get()) when a value is present and comp.empty() when no value is present.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.aol.cyclops.types.extensability.ValueComprehender

fromIterator

Methods inherited from interface com.aol.cyclops.types.extensability.Comprehender

executeflatMap, instanceOfT, liftAndFlatMap, liftObject, priority, unwrap, unwrapOtherMonadTypes

Constructor Detail

EvalComprehender

public EvalComprehender()

Method Detail

resolveForCrossTypeFlatMap

public java.lang.Object resolveForCrossTypeFlatMap(Comprehender comp,
                                                   Eval apply)

Description copied from interface: Comprehender

Answers the question how should this type behave when returned in a flatMap function by another type? For example - Optional uses comp.of(opt.get()) when a value is present and comp.empty() when no value is present.

Specified by:

resolveForCrossTypeFlatMap in interface Comprehender<Eval>

Returns:

filter

public java.lang.Object filter(Eval t,
                               java.util.function.Predicate p)

Description copied from interface: Comprehender

Wrapper around filter

Specified by:

filter in interface Comprehender<Eval>

Parameters:

t - Monadic type being wrapped

p - JDK Predicate to wrap

Returns:

Result of call to

 t.filter ( i -> p.test(i)); 

map

public java.lang.Object map(Eval t,
                            java.util.function.Function fn)

Description copied from interface: Comprehender

Wrapper around map

Specified by:

map in interface Comprehender<Eval>

Parameters:

t - Monadic type being wrapped

fn - JDK Function to wrap

Returns:

Result of call to

 t.map( i -> fn.apply(i)); 

flatMap

public java.lang.Object flatMap(Eval t,
                                java.util.function.Function fn)

Specified by:

flatMap in interface Comprehender<Eval>

of

public Eval of(java.lang.Object o)

Specified by:

of in interface Comprehender<Eval>

empty

public Eval empty()

Specified by:

empty in interface Comprehender<Eval>

getTargetClass

public java.lang.Class getTargetClass()

Specified by:

getTargetClass in interface Comprehender<Eval>