Class Functions0

java.lang.Object

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

public final class Functions0
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static final class	Functions0.AtomicIntegerZeroFunction
private static final class	Functions0.AtomicLongZeroFunction
private static final class	Functions0.BigDecimalZeroFunction
private static final class	Functions0.BigIntegerZeroFunction
private static final class	Functions0.FalseFunction
private static final class	Functions0.IntegerZeroFunction
private static final class	Functions0.NewFastListFunction<T>
private static final class	Functions0.NewHashBagFunction<T>
private static final class	Functions0.NewUnifiedMapFunction<K,V>
private static final class	Functions0.NewUnifiedSetFunction<T>
private static final class	Functions0.NullFunction<T>
private static final class	Functions0.ThrowingFunction0Adapter<T>
private static final class	Functions0.TrueFunction

Field Summary

Fields

Modifier and Type	Field	Description
private static final Functions0.AtomicIntegerZeroFunction	ATOMIC_INTEGER_ZERO
private static final Functions0.AtomicLongZeroFunction	ATOMIC_LONG_ZERO
private static final Functions0.BigDecimalZeroFunction	BIG_DECIMAL_ZERO
private static final Functions0.BigIntegerZeroFunction	BIG_INTEGER_ZERO
private static final Functions0.FalseFunction	FALSE_FUNCTION
private static final Functions0.IntegerZeroFunction	INTEGER_ZERO
private static final Functions0.NewFastListFunction<?>	NEW_FAST_LIST_FUNCTION
private static final Functions0.NewHashBagFunction<?>	NEW_HASH_BAG_FUNCTION
private static final Functions0.NewUnifiedMapFunction<?,?>	NEW_UNIFIED_MAP_FUNCTION
private static final Functions0.NewUnifiedSetFunction<?>	NEW_UNIFIED_SET_FUNCTION
private static final Functions0.NullFunction<?>	NULL_FUNCTION
private static final Functions0.TrueFunction	TRUE_FUNCTION

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Functions0()

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 Object

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

Field Details

TRUE_FUNCTION

private static final Functions0.TrueFunction TRUE_FUNCTION

FALSE_FUNCTION

private static final Functions0.FalseFunction FALSE_FUNCTION

NEW_FAST_LIST_FUNCTION

private static final Functions0.NewFastListFunction<?> NEW_FAST_LIST_FUNCTION

NEW_UNIFIED_SET_FUNCTION

private static final Functions0.NewUnifiedSetFunction<?> NEW_UNIFIED_SET_FUNCTION

NEW_HASH_BAG_FUNCTION

private static final Functions0.NewHashBagFunction<?> NEW_HASH_BAG_FUNCTION

NEW_UNIFIED_MAP_FUNCTION

private static final Functions0.NewUnifiedMapFunction<?,?> NEW_UNIFIED_MAP_FUNCTION

NULL_FUNCTION

private static final Functions0.NullFunction<?> NULL_FUNCTION

ATOMIC_INTEGER_ZERO

private static final Functions0.AtomicIntegerZeroFunction ATOMIC_INTEGER_ZERO

ATOMIC_LONG_ZERO

private static final Functions0.AtomicLongZeroFunction ATOMIC_LONG_ZERO

INTEGER_ZERO

private static final Functions0.IntegerZeroFunction INTEGER_ZERO

BIG_DECIMAL_ZERO

private static final Functions0.BigDecimalZeroFunction BIG_DECIMAL_ZERO

BIG_INTEGER_ZERO

private static final Functions0.BigIntegerZeroFunction BIG_INTEGER_ZERO

Constructor Details

Functions0

private Functions0()

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