Class CachedStream<T>

java.lang.Object

org.jdrupes.builder.core.CachedStream<T>

Type Parameters:

T - the generic type

public class CachedStream<T>
extends Object

A cached stream allows the user of a Stream to access it multiple times. The stream is evaluated on the first call to stream() and then cached.

As a convenience, the class supports combining the contents of multiple streams.

Constructor Summary

Constructors

Constructor	Description
CachedStream()	Instantiates a new cached stream.

Method Summary

Modifier and Type	Method	Description
final void	add(Stream<T>... sources)	Use all given streams as sources.
static <T> CachedStream<T>	of(Stream<T> source)	Create a cached stream from a single source stream.
Stream<T>	stream()	Provide the contents from the stream(s).

Methods inherited from class Object

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

Constructor Details

CachedStream

public CachedStream()

Instantiates a new cached stream.

Method Details

add

@SafeVarargs
public final void add(Stream<T>... sources)

Use all given streams as sources.

Parameters:

sources - the sources

stream

public Stream<T> stream()

Provide the contents from the stream(s).

Returns:

the stream<? extends t>

of

public static <T> CachedStream<T> of(Stream<T> source)

Create a cached stream from a single source stream.

Type Parameters:

T - the generic type

Parameters:

source - the source

Returns:

the cached stream