net.openhft.chronicle.core.util

Interface Builder<T>

Type Parameters:

T - of object provided

All Superinterfaces:

Supplier<T>

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface Builder<T>
extends Supplier<T>

A Builder of type T is a configurable object that can provide another non-null T instance.

Extends Supplier to make this useable as a Supplier.

Method Summary

Modifier and Type	Method and Description
T	build() Builds and returns a non-null T instance.
default T	get()

Method Detail

build

@NotNull
T build()

Builds and returns a non-null T instance.

The builder should always creates a new instance if the instance is mutable. If the instance is immutable, the builder may create a new instance, or it may return a previously existing instance at its own discretion.

As opposed to a factory, a Builder is often only able to be invoked at most one time.

Returns:

a non-null instance of type T

Throws:

IllegalStateException - if the builder is can only be invoked once and this method is invoked more than once.

get

default T get()

Specified by:

get in interface Supplier<T>