Java-8 extensions

Synchronization

synchronizing the target each call of Supplier#get:

Supplier<Integer> value = sync(() -> 1);

Lazy Initializer

lazy initializing the value in common way:

Supplier<Int> value = lazy(() -> 1); 

lazy initializing the value in multi-threads:

Supplier<Int> value = lazy(() -> 1).lock();
Supplier<Int> value = lazy(() -> 1).lock(lock);

Function Operations

fill the first argument by curly:

BiFunction<Integer,Long,String> function2 = (left,right)-> left+"/"+right;

Function<T,R> function1 = curly(function2, 1);
Supplier<R>  supplier = function1.curly(3L); // "1/3"

fill the last argument by push:

BiFunction<Integer,Long,String> function2 = (left,right)-> left+"/"+right;

Function<T,R> function1 = push(function2, 1L);
Supplier<R>  supplier = function1.push(3); // "3/1"

drop the first argument by take:

BiFunction<Integer,Long,String> function2 = (left,right)-> left+"/"+right;

Function<T,R> function1 = drop(function2);

String value = function1.apply(3L);// "null/3"

Supplier<R>  supplier = function1.drop(); "null,null"

drop the last argument by pop:

BiFunction<Integer,Long,String> function2 = (left,right)-> left+"/"+right;

Function<T,R> function1 = pop(function2);

String value = function1.apply(3);// "3/null"

Supplier<R>  supplier = function1.pop(); "null,null"