Package cz.masci.springfx.mvci.util

Class FunctionUtils

java.lang.Object

cz.masci.springfx.mvci.util.FunctionUtils

public class FunctionUtils
extends Object

Constructor Summary

Constructors

Constructor	Description
FunctionUtils()

Method Summary

Modifier and Type	Method	Description
static <T, V> V	applyNotNull(T source, Function<T,V> transform)	Accepts not null source and applies the transform function on it.
static <T, V> V	applyNotNullElse(T source, Function<T,V> transform, V value)	Accepts not null source and applies the transform function on it.
static <T, V> V	applyNotNullElseGet(T source, Function<T,V> transform, Supplier<V> value)	Accepts not null source and applies the transform function on it.

Methods inherited from class java.lang.Object

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

Constructor Details

FunctionUtils

public FunctionUtils()

Method Details

applyNotNull

public static <T,
V> V applyNotNull(T source,
 Function<T,V> transform)

Accepts not null source and applies the transform function on it. If the source is null returns null.

Type Parameters:

T - Type of source object

V - Type of transformed object

Parameters:

source - Source object

transform - Transformation function

Returns:

Transformed value or null

applyNotNullElse

public static <T,
V> V applyNotNullElse(T source,
 Function<T,V> transform,
 V value)

Accepts not null source and applies the transform function on it. If the source is null returns value.

Type Parameters:

T - Type of source object

V - Type of transformed object

Parameters:

source - Source object

transform - Transformation function

value - Default value if source is null

Returns:

Transformed value or default value

applyNotNullElseGet

public static <T,
V> V applyNotNullElseGet(T source,
 Function<T,V> transform,
 Supplier<V> value)

Accepts not null source and applies the transform function on it. If the source is null returns supplied value.

Type Parameters:

T - Type of source object

V - Type of transformed object

Parameters:

source - Source object

transform - Transformation function

value - Supplier for default value if source is null

Returns:

Transformed value or default value