Package akka.stream.impl

Class Concat

java.lang.Object

akka.stream.impl.Concat

All Implemented Interfaces:

Traversal, java.io.Serializable, scala.Equals, scala.Product

public final class Concat
extends java.lang.Object
implements Traversal, scala.Product, java.io.Serializable

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
Concat(Traversal first, Traversal next)

Method Summary

Modifier and Type	Method	Description
static Concat	apply(Traversal first, Traversal next)	INTERNAL API
boolean	canEqual(java.lang.Object x$1)
Concat	copy(Traversal first, Traversal next)
Traversal	copy$default$1()
Traversal	copy$default$2()
boolean	equals(java.lang.Object x$1)
Traversal	first()
int	hashCode()
Traversal	next()
static Traversal	normalizeConcat(Traversal first, Traversal second)	An optimizatzion to remove cheaply recognizable patterns of redundancy, for example PushNotUsed immediately followed by a Pop.
int	productArity()
java.lang.Object	productElement(int x$1)
java.lang.String	productElementName(int x$1)
scala.collection.Iterator<java.lang.Object>	productIterator()
java.lang.String	productPrefix()
Traversal	rewireFirstTo(int relativeOffset)
java.lang.String	toString()
static scala.Option<scala.Tuple2<Traversal,Traversal>>	unapply(Concat x$0)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface scala.Product

productElementNames

Methods inherited from interface akka.stream.impl.Traversal

concat

Constructor Detail

Concat

public Concat(Traversal first,
              Traversal next)

Method Detail

normalizeConcat

public static Traversal normalizeConcat(Traversal first,
                                        Traversal second)

An optimizatzion to remove cheaply recognizable patterns of redundancy, for example PushNotUsed immediately followed by a Pop. It also rotates the tree to make it more left-leaning, which makes the tree more readable and require less stack-space when traversing. This is only a single rotation, otherwise this implementation would be O(N^2).

apply

public static Concat apply(Traversal first,
                           Traversal next)

INTERNAL API

A Traversal that consists of two traversals. The linked traversals must be traversed in first, next order.

unapply

public static scala.Option<scala.Tuple2<Traversal,Traversal>> unapply(Concat x$0)

first

public Traversal first()

next

public Traversal next()

rewireFirstTo

public Traversal rewireFirstTo(int relativeOffset)

Specified by:

rewireFirstTo in interface Traversal

copy

public Concat copy(Traversal first,
                   Traversal next)

copy$default$1

public Traversal copy$default$1()

copy$default$2

public Traversal copy$default$2()

productPrefix

public java.lang.String productPrefix()

Specified by:

productPrefix in interface scala.Product

productArity

public int productArity()

Specified by:

productArity in interface scala.Product

productElement

public java.lang.Object productElement(int x$1)

Specified by:

productElement in interface scala.Product

productIterator

public scala.collection.Iterator<java.lang.Object> productIterator()

Specified by:

productIterator in interface scala.Product

canEqual

public boolean canEqual(java.lang.Object x$1)

Specified by:

canEqual in interface scala.Equals

productElementName

public java.lang.String productElementName(int x$1)

Specified by:

productElementName in interface scala.Product

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

equals

public boolean equals(java.lang.Object x$1)

Specified by:

equals in interface scala.Equals

Overrides:

equals in class java.lang.Object