org.dmfs.httpclientinterfaces.headers.impl

Class EmptyHeaderList

java.lang.Object

org.dmfs.httpclientinterfaces.headers.impl.EmptyHeaderList

All Implemented Interfaces:

java.lang.Iterable<Header<?>>, HeaderList

public final class EmptyHeaderList
extends java.lang.Object
implements HeaderList

A trivial HeaderList that doesn't contain any Headers.

Author:

Marten Gajda

Field Summary

Fields

Modifier and Type	Field and Description
static EmptyHeaderList	INSTANCE An instance of an EmptyHeaderList.

Constructor Summary

Constructors

Constructor and Description
EmptyHeaderList()

Method Summary

Modifier and Type	Method and Description
HeaderList	append(Header<?>... newHeaders) Returns a new HeaderList that also contains the given Headers.
HeaderList	append(HeaderList newHeaders) Returns a new HeaderList that also contains the Headers in the given HeaderList.
boolean	contains(Header<?> header) Returns whether this HeaderSet contains the given Header.
boolean	contains(HeaderType<?> headerType) Returns whether this HeaderSet contains a Header of the given HeaderType.
<T> java.util.Iterator<Header<T>>	headersByType(HeaderType<T> headerType) Get an Iterator of all Headers of the given HeaderType in this list.
java.util.Iterator<Header<?>>	iterator()
HeaderList	remove(HeaderType<?>... removedHeaderTypes) Returns a new HeaderList that doesn't contain any headers of the given types.
int	size() Returns the number of Headers in this HeaderList.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

INSTANCE

public static final EmptyHeaderList INSTANCE

An instance of an EmptyHeaderList.

Constructor Detail

EmptyHeaderList

public EmptyHeaderList()

Method Detail

iterator

public java.util.Iterator<Header<?>> iterator()

Specified by:

iterator in interface java.lang.Iterable<Header<?>>

append

public HeaderList append(Header<?>... newHeaders)

Description copied from interface: HeaderList

Returns a new HeaderList that also contains the given Headers.

Specified by:

append in interface HeaderList

Parameters:

newHeaders - The Headers to add.

Returns:

A HeaderList that contains the new Headers in addition to the Headers of this list.

append

public HeaderList append(HeaderList newHeaders)

Description copied from interface: HeaderList

Returns a new HeaderList that also contains the Headers in the given HeaderList.

Specified by:

append in interface HeaderList

Parameters:

newHeaders - The HeaderList containing the headers to add.

Returns:

A HeaderList that contains the new Headers in addition to the Headers of this list.

remove

public HeaderList remove(HeaderType<?>... removedHeaderTypes)

Description copied from interface: HeaderList

Returns a new HeaderList that doesn't contain any headers of the given types.

Specified by:

remove in interface HeaderList

Returns:

contains

public boolean contains(HeaderType<?> headerType)

Description copied from interface: HeaderList

Returns whether this HeaderSet contains a Header of the given HeaderType.

Specified by:

contains in interface HeaderList

Returns:

contains

public boolean contains(Header<?> header)

Description copied from interface: HeaderList

Returns whether this HeaderSet contains the given Header. This is only true if the set contains a Header having the same HeaderType and value.

Specified by:

contains in interface HeaderList

Returns:

headersByType

public <T> java.util.Iterator<Header<T>> headersByType(HeaderType<T> headerType)

Description copied from interface: HeaderList

Get an Iterator of all Headers of the given HeaderType in this list.

Specified by:

headersByType in interface HeaderList

Parameters:

headerType - The HeaderType to look for.

Returns:

An Iterator of Headers, may be empty, but never null.

size

public int size()

Description copied from interface: HeaderList

Returns the number of Headers in this HeaderList.

Specified by:

size in interface HeaderList

Returns: