Module io.helidon.common.http

Package io.helidon.common.http

Class HashHeaders

java.lang.Object

io.helidon.common.http.HashParameters

io.helidon.common.http.HashHeaders

All Implemented Interfaces:

Headers, Parameters, Iterable<Map.Entry<String,List<String>>>

Direct Known Subclasses:

WriteableBodyPartHeaders

public class HashHeaders
extends HashParameters
implements Headers

A Map-based Headers implementation with case-insensitive keys and immutable List of values that needs to be copied on each write.

Nested Class Summary

Nested classes/interfaces inherited from class io.helidon.common.http.HashParameters

HashParameters.ArrayIterable<T>

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	HashHeaders()	Creates a new empty instance.
protected	HashHeaders(Iterable<Map.Entry<String,List<String>>> initialContent)	Creates a new instance populated from the given contents, typically from another HashHeaders instance or a map's entry set.
protected	HashHeaders(Map<String,List<String>> initialContent)	Creates a new instance populated from the contents of the provided multi-map.

Method Summary

Modifier and Type	Method	Description
static HashHeaders	concat(Parameters... parameters)	Concatenates the contents of the specified Parameters into a new HashHeaders instance.
static HashHeaders	concat(Iterable<Parameters> initialContent)	Concatenates the specified contents into a new HashHeaders instance.
static HashHeaders	create()	Creates a new, empty instance.
static HashHeaders	create(Parameters initialContent)	Creates a new instance populated with the specified Parameters contents.
static HashHeaders	create(Map<String,List<String>> initialContent)	Creates a new instance populated with the specified multi-map's contents.
protected Map<String,List<String>>	emptyMapForReads()	Returns an empty Map suitable for case-sensitivity or case-insensitivity and optimized for read-only access.
protected ConcurrentMap<String,List<String>>	emptyMapForUpdates()	Returns an empty Map suitable for case-sensitivity or case-insensitivity and for read-write access.

Methods inherited from class io.helidon.common.http.HashParameters

add, add, addAll, all, computeIfAbsent, computeSingleIfAbsent, concat, create, equals, first, hashCode, iterator, put, put, putAll, putIfAbsent, putIfAbsent, remove, toMap, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.helidon.common.http.Headers

all, value, values

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Methods inherited from interface io.helidon.common.http.Parameters

add, add, addAll, computeIfAbsent, computeSingleIfAbsent, first, iterator, put, put, putAll, putIfAbsent, putIfAbsent, remove, toMap

Constructor Details

HashHeaders

protected HashHeaders()

Creates a new empty instance.

HashHeaders

protected HashHeaders(Map<String,List<String>> initialContent)

Creates a new instance populated from the contents of the provided multi-map.

Parameters:

initialContent - multi-map containing the initial contents to populate the new instance

HashHeaders

protected HashHeaders(Iterable<Map.Entry<String,List<String>>> initialContent)

Creates a new instance populated from the given contents, typically from another HashHeaders instance or a map's entry set.

Parameters:

initialContent - initial data

Method Details

create

public static HashHeaders create()

Creates a new, empty instance.

Returns:

empty instance

create

public static HashHeaders create(Map<String,List<String>> initialContent)

Creates a new instance populated with the specified multi-map's contents.

Parameters:

initialContent - multi-map containing initial contents for the new instance

Returns:

new instance filled with a deep copy of the initial contents

create

public static HashHeaders create(Parameters initialContent)

Creates a new instance populated with the specified Parameters contents.

Parameters:

initialContent - Parameters containing initial contents for the new instance

Returns:

new instance filled with the names and values of the specified initial contents

concat

public static HashHeaders concat(Parameters... parameters)

Concatenates the contents of the specified Parameters into a new HashHeaders instance.

Parameters:

parameters - zero or more Parameters instances

Returns:

new HashHeaders containing the names and values from the specified initial parameters

concat

public static HashHeaders concat(Iterable<Parameters> initialContent)

Concatenates the specified contents into a new HashHeaders instance.

Parameters:

initialContent - zero or more Parameters instances

Returns:

new HashHeaders containint the names and values from the specified initial content

emptyMapForReads

protected Map<String,List<String>> emptyMapForReads()

Description copied from class: HashParameters

Returns an empty Map suitable for case-sensitivity or case-insensitivity and optimized for read-only access.

Typical implementations should not return a concurrent implementation.

Overrides:

emptyMapForReads in class HashParameters

Returns:

empty Map implementation with correct case-sensitivity behavior and optimized for read-only access

emptyMapForUpdates

protected ConcurrentMap<String,List<String>> emptyMapForUpdates()

Description copied from class: HashParameters

Returns an empty Map suitable for case-sensitivity or case-insensitivity and for read-write access.

Typical implementations should return a concurrent implementation.

Overrides:

emptyMapForUpdates in class HashParameters

Returns:

empty Map implementation with correct case-sensitivity behavior and suitable for read-write access