Package org.eclipse.collections.impl.block.factory

Class Functions0

java.lang.Object

org.eclipse.collections.impl.block.factory.Functions0

public final class Functions0
extends Object

Method Summary

Modifier and Type	Method	Description
static Function0<Boolean>	getFalse()
static Function0<Boolean>	getTrue()
static <T> Function0<MutableList<T>>	newFastList()
static <T> Function0<MutableBag<T>>	newHashBag()
static <K, V> Function0<MutableMap<K,V>>	newUnifiedMap()
static <T> Function0<MutableSet<T>>	newUnifiedSet()
static <T> Function0<T>	nullValue()
static <T> Function0<T>	throwing(ThrowingFunction0<T> throwingFunction0)	Allows a lambda or anonymous inner class that needs to throw a checked exception to be safely wrapped as a Function that will throw a RuntimeException, wrapping the checked exception that is the cause.
static <T> Function0<T>	throwing(ThrowingFunction0<T> throwingFunction0, Function<? super Throwable,? extends RuntimeException> rethrow)	Allows a lambda or anonymous inner class that needs to throw a checked exception to be safely wrapped as a Function0 that will throw a user specified RuntimeException based on the provided function.
static <T> Function0<T>	value(T t)
static Function0<AtomicInteger>	zeroAtomicInteger()
static Function0<AtomicLong>	zeroAtomicLong()
static Function0<BigDecimal>	zeroBigDecimal()
static Function0<BigInteger>	zeroBigInteger()
static Function0<Integer>	zeroInteger()

Methods inherited from class java.lang.Object

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

Method Details

getTrue

public static Function0<Boolean> getTrue()

Since:

6.0

getFalse

public static Function0<Boolean> getFalse()

Since:

6.0

newFastList

public static <T> Function0<MutableList<T>> newFastList()

newUnifiedSet

public static <T> Function0<MutableSet<T>> newUnifiedSet()

newHashBag

public static <T> Function0<MutableBag<T>> newHashBag()

newUnifiedMap

public static <K,
V> Function0<MutableMap<K,V>> newUnifiedMap()

throwing

public static <T> Function0<T> throwing(ThrowingFunction0<T> throwingFunction0)

Allows a lambda or anonymous inner class that needs to throw a checked exception to be safely wrapped as a Function that will throw a RuntimeException, wrapping the checked exception that is the cause.

throwing

public static <T> Function0<T> throwing(ThrowingFunction0<T> throwingFunction0,
 Function<? super Throwable,? extends RuntimeException> rethrow)

Allows a lambda or anonymous inner class that needs to throw a checked exception to be safely wrapped as a Function0 that will throw a user specified RuntimeException based on the provided function. The function is passed the current element and the checked exception that was thrown as context arguments.

nullValue

public static <T> Function0<T> nullValue()

value

public static <T> Function0<T> value(T t)

zeroInteger

public static Function0<Integer> zeroInteger()

zeroAtomicInteger

public static Function0<AtomicInteger> zeroAtomicInteger()

zeroAtomicLong

public static Function0<AtomicLong> zeroAtomicLong()

zeroBigDecimal

public static Function0<BigDecimal> zeroBigDecimal()

Since:

6.0

zeroBigInteger

public static Function0<BigInteger> zeroBigInteger()

Since:

6.0