Module io.jenetics.base

Package io.jenetics.internal.util

Class Lifecycle

java.lang.Object

io.jenetics.internal.util.Lifecycle

public class Lifecycle
extends Object

Interfaces and classes for handling resource (AutoCloseable) objects. The common use cases are shown as follows:

Wrapping non-closeable values

final Value<Path, IOException> file = new Value<>( Files.createFile(Path.of("some_file")), Files::deleteIfExists ); // Automatically delete the file after the test. try (file) { Files.write(file.get(), "foo".getBytes()); final var writtenText = Files.readString(file.get()); assert "foo".equals(writtenText); }

Building complex closeable values

final IOValue<Stream<Object>> result = new IOValue<>(resources -> { final var fin = resources.add(new FileInputStream(file.toFile())); final var bin = resources.add(new BufferedInputStream(fin)); final var oin = resources.add(new ObjectInputStream(bin)); return Stream.generate(() -> readNextObject(oin)) .takeWhile(Objects::nonNull); }); try (result) { result.get().forEach(System.out::println); }

Wrapping several closeables into one

try (var __ = ExtendedCloseable.of(c1, c2, c3)) { ... }

Since:

6.2

Version:

7.2

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	Lifecycle.ExtendedCloseable<E extends Exception>	Extends the AutoCloseable with methods for wrapping the thrown exception into unchecked exceptions or ignoring them.
static final class	Lifecycle.IOResources	This class allows collecting one or more AutoCloseable objects into one.
static final class	Lifecycle.IOValue<T>	This class represents a closeable value.
static class	Lifecycle.Resources<E extends Exception>	This class allows collecting one or more AutoCloseable objects into one.
static interface	Lifecycle.ThrowingConsumer<A,E extends Exception>	A method which takes an argument and can throw an exception.
static interface	Lifecycle.ThrowingFunction<A,R,E extends Exception>	A function which takes an argument and can throw an exception.
static interface	Lifecycle.ThrowingRunnable<E extends Exception>	Runnable task/method, which might throw an exception E.
static class	Lifecycle.Value<T,E extends Exception>	This class represents a closeable value.

Method Summary

Methods inherited from class java.lang.Object

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