org.cactoos.scalar

Class FirstOf<T>

java.lang.Object

org.cactoos.scalar.FirstOf<T>

Type Parameters:

T - Type of result

All Implemented Interfaces:

Scalar<T>

public final class FirstOf<T>
extends Object
implements Scalar<T>

Find first element in a list that satisfies specified condition.

There is no thread-safety guarantee.

Since:

0.32

Constructor Summary

Constructors

Constructor and Description
FirstOf(Func<T,Boolean> cond, Iterable<T> src, Scalar<T> fbck) Constructor.

Method Summary

Modifier and Type	Method and Description
T	value() Convert it to the value.

Methods inherited from class java.lang.Object

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

Constructor Detail

FirstOf

public FirstOf(Func<T,Boolean> cond,
               Iterable<T> src,
               Scalar<T> fbck)

Constructor.

Parameters:

cond - Condition for getting the element

src - Source iterable

fbck - Fallback used if no value matches

Method Detail

value

public T value()
        throws Exception

Description copied from interface: Scalar

Convert it to the value.

Specified by:

value in interface Scalar<T>

Returns:

The value

Throws:

Exception - If fails