java.lang.Object
- io.netty5.handler.codec.http.HttpHeaders
- - io.netty5.handler.codec.http.ReadOnlyHttpHeaders

All Implemented Interfaces:

Iterable<Map.Entry<String,String>>
```
@UnstableApi
public final class ReadOnlyHttpHeaders
extends HttpHeaders
```
A variant of HttpHeaders which only supports read-only methods.
Any array passed to this class may be used directly in the underlying data structures of this class. If these arrays may be modified it is the caller's responsibility to supply this class with a copy of the array.
This may be a good alternative to DefaultHttpHeaders if your have a fixed set of headers which will not change.

Constructor Summary

Constructors
Constructor Description

ReadOnlyHttpHeaders(boolean validateHeaders, CharSequence... nameValuePairs)
Create a new instance.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`HttpHeaders`	`add(String name, Iterable<?> values)`
`HttpHeaders`	`add(String name, Object value)`
`HttpHeaders`	`addInt(CharSequence name, int value)`	Add the `name` to `value`.
`HttpHeaders`	`addShort(CharSequence name, short value)`	Add the `name` to `value`.
`HttpHeaders`	`clear()`	Removes all headers from this `HttpMessage`.
`boolean`	`contains(String name)`
`boolean`	`contains(String name, String value, boolean ignoreCase)`
`boolean`	`containsValue(CharSequence name, CharSequence value, boolean ignoreCase)`	Returns `true` if a header with the `name` and `value` exists, `false` otherwise.
`List<Map.Entry<String,String>>`	`entries()`	Returns a new `List` that contains all headers in this object.
`String`	`get(String name)`
`List<String>`	`getAll(String name)`
`Integer`	`getInt(CharSequence name)`	Returns the integer value of a header with the specified name.
`int`	`getInt(CharSequence name, int defaultValue)`	Returns the integer value of a header with the specified name.
`Short`	`getShort(CharSequence name)`	Returns the short value of a header with the specified name.
`short`	`getShort(CharSequence name, short defaultValue)`	Returns the short value of a header with the specified name.
`Long`	`getTimeMillis(CharSequence name)`	Returns the date value of a header with the specified name.
`long`	`getTimeMillis(CharSequence name, long defaultValue)`	Returns the date value of a header with the specified name.
`boolean`	`isEmpty()`	Checks if no header exists.
`Iterator<Map.Entry<String,String>>`	`iterator()`
`Iterator<Map.Entry<CharSequence,CharSequence>>`	`iteratorCharSequence()`
`Set<String>`	`names()`	Returns a new `Set` that contains the names of all headers in this object.
`HttpHeaders`	`remove(String name)`
`HttpHeaders`	`set(String name, Iterable<?> values)`
`HttpHeaders`	`set(String name, Object value)`
`HttpHeaders`	`setInt(CharSequence name, int value)`	Set the `name` to `value`.
`HttpHeaders`	`setShort(CharSequence name, short value)`	Set the `name` to `value`.
`int`	`size()`	Returns the number of headers in this object.
`Iterator<CharSequence>`	`valueCharSequenceIterator(CharSequence name)`	Equivalent to `HttpHeaders.getAll(String)` but it is possible that no intermediate list is generated.
`Iterator<String>`	`valueStringIterator(CharSequence name)`	Equivalent to `HttpHeaders.getAll(String)` but it is possible that no intermediate list is generated.

Methods inherited from class io.netty5.handler.codec.http.HttpHeaders
add, add, add, addDateHeader, addDateHeader, addHeader, addHeader, addIntHeader, addIntHeader, clearHeaders, contains, contains, copy, equalsIgnoreCase, get, get, getAll, getAllAsString, getAsString, getContentLength, getContentLength, getDate, getDate, getDateHeader, getDateHeader, getDateHeader, getDateHeader, getHeader, getHeader, getHeader, getHeader, getHost, getHost, getIntHeader, getIntHeader, getIntHeader, getIntHeader, is100ContinueExpected, isContentLengthSet, isKeepAlive, isTransferEncodingChunked, iteratorAsString, newEntity, remove, removeHeader, removeHeader, removeTransferEncodingChunked, set, set, set, set100ContinueExpected, set100ContinueExpected, setAll, setContentLength, setDate, setDateHeader, setDateHeader, setDateHeader, setDateHeader, setHeader, setHeader, setHeader, setHeader, setHost, setHost, setIntHeader, setIntHeader, setIntHeader, setIntHeader, setKeepAlive, setTransferEncodingChunked, toString

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.lang.Iterable
forEach, spliterator

- Constructor Detail
  - ReadOnlyHttpHeaders
```
public ReadOnlyHttpHeaders(boolean validateHeaders,
                           CharSequence... nameValuePairs)
```
    Create a new instance.
    
    Parameters:
    
    validateHeaders - true to validate the contents of each header name.
    
    nameValuePairs - An array of the structure [<name,value>,<name,value>,...]. A copy will NOT be made of this array. If the contents of this array may be modified externally you are responsible for passing in a copy.
- Method Detail
  - get
```
public String get(String name)
```
    Specified by:
    
    get in class HttpHeaders
    
    See Also:
    
    HttpHeaders.get(CharSequence)
  - getInt
```
public Integer getInt(CharSequence name)
```
    Description copied from class: HttpHeaders
    
    Returns the integer value of a header with the specified name. If there are more than one values for the specified name, the first value is returned.
    
    Specified by:
    
    getInt in class HttpHeaders
    
    Parameters:
    
    name - the name of the header to search
    
    Returns:
    
    the first header value if the header is found and its value is an integer. null if there's no such header or its value is not an integer.
  - getInt
```
public int getInt(CharSequence name,
                  int defaultValue)
```
    Description copied from class: HttpHeaders
    
    Returns the integer value of a header with the specified name. If there are more than one values for the specified name, the first value is returned.
    
    Specified by:
    
    getInt in class HttpHeaders
    
    Parameters:
    
    name - the name of the header to search
    
    defaultValue - the default value
    
    Returns:
    
    the first header value if the header is found and its value is an integer. defaultValue if there's no such header or its value is not an integer.
  - getShort
```
public Short getShort(CharSequence name)
```
    Description copied from class: HttpHeaders
    
    Returns the short value of a header with the specified name. If there are more than one values for the specified name, the first value is returned.
    
    Specified by:
    
    getShort in class HttpHeaders
    
    Parameters:
    
    name - the name of the header to search
    
    Returns:
    
    the first header value if the header is found and its value is a short. null if there's no such header or its value is not a short.
  - getShort
```
public short getShort(CharSequence name,
                      short defaultValue)
```
    Description copied from class: HttpHeaders
    
    Returns the short value of a header with the specified name. If there are more than one values for the specified name, the first value is returned.
    
    Specified by:
    
    getShort in class HttpHeaders
    
    Parameters:
    
    name - the name of the header to search
    
    defaultValue - the default value
    
    Returns:
    
    the first header value if the header is found and its value is a short. defaultValue if there's no such header or its value is not a short.
  - getTimeMillis
```
public Long getTimeMillis(CharSequence name)
```
    Description copied from class: HttpHeaders
    
    Returns the date value of a header with the specified name. If there are more than one values for the specified name, the first value is returned.
    
    Specified by:
    
    getTimeMillis in class HttpHeaders
    
    Parameters:
    
    name - the name of the header to search
    
    Returns:
    
    the first header value if the header is found and its value is a date. null if there's no such header or its value is not a date.
  - getTimeMillis
```
public long getTimeMillis(CharSequence name,
                          long defaultValue)
```
    Description copied from class: HttpHeaders
    
    Returns the date value of a header with the specified name. If there are more than one values for the specified name, the first value is returned.
    
    Specified by:
    
    getTimeMillis in class HttpHeaders
    
    Parameters:
    
    name - the name of the header to search
    
    defaultValue - the default value
    
    Returns:
    
    the first header value if the header is found and its value is a date. defaultValue if there's no such header or its value is not a date.
  - getAll
```
public List<String> getAll(String name)
```
    Specified by:
    
    getAll in class HttpHeaders
    
    See Also:
    
    HttpHeaders.getAll(CharSequence)
  - entries
```
public List<Map.Entry<String,String>> entries()
```
    Description copied from class: HttpHeaders
    
    Returns a new List that contains all headers in this object. Note that modifying the returned List will not affect the state of this object. If you intend to enumerate over the header entries only, use HttpHeaders.iterator() instead, which has much less overhead.
    
    Specified by:
    
    entries in class HttpHeaders
    
    See Also:
    
    HttpHeaders.iteratorCharSequence()
  - contains
```
public boolean contains(String name)
```
    Specified by:
    
    contains in class HttpHeaders
    
    See Also:
    
    HttpHeaders.contains(CharSequence)
  - contains
```
public boolean contains(String name,
                        String value,
                        boolean ignoreCase)
```
    Overrides:
    
    contains in class HttpHeaders
    
    See Also:
    
    HttpHeaders.contains(CharSequence, CharSequence, boolean)
  - containsValue
```
public boolean containsValue(CharSequence name,
                             CharSequence value,
                             boolean ignoreCase)
```
    Description copied from class: HttpHeaders
    
    Returns true if a header with the name and value exists, false otherwise. This also handles multiple values that are separated with a ,.
    If ignoreCase is true then a case insensitive compare is done on the value.
    
    Overrides:
    
    containsValue in class HttpHeaders
    
    Parameters:
    
    name - the name of the header to find
    
    value - the value of the header to find
    
    ignoreCase - true then a case insensitive compare is run to compare values. otherwise a case sensitive compare is run to compare values.
  - valueStringIterator
```
public Iterator<String> valueStringIterator(CharSequence name)
```
    Description copied from class: HttpHeaders
    
    Equivalent to HttpHeaders.getAll(String) but it is possible that no intermediate list is generated.
    
    Overrides:
    
    valueStringIterator in class HttpHeaders
    
    Parameters:
    
    name - the name of the header to retrieve
    
    Returns:
    
    an Iterator of header values corresponding to name.
  - valueCharSequenceIterator
```
public Iterator<CharSequence> valueCharSequenceIterator(CharSequence name)
```
    Description copied from class: HttpHeaders
    
    Equivalent to HttpHeaders.getAll(String) but it is possible that no intermediate list is generated.
    
    Overrides:
    
    valueCharSequenceIterator in class HttpHeaders
    
    Parameters:
    
    name - the name of the header to retrieve
    
    Returns:
    
    an Iterator of header values corresponding to name.
  - iterator
```
public Iterator<Map.Entry<String,String>> iterator()
```
    Specified by:
    
    iterator in interface Iterable<Map.Entry<String,String>>
    
    Specified by:
    
    iterator in class HttpHeaders
  - iteratorCharSequence
```
public Iterator<Map.Entry<CharSequence,CharSequence>> iteratorCharSequence()
```
    Specified by:
    
    iteratorCharSequence in class HttpHeaders
    
    Returns:
    
    Iterator over the name/value header pairs.
  - isEmpty
```
public boolean isEmpty()
```
    Description copied from class: HttpHeaders
    
    Checks if no header exists.
    
    Specified by:
    
    isEmpty in class HttpHeaders
  - size
```
public int size()
```
    Description copied from class: HttpHeaders
    
    Returns the number of headers in this object.
    
    Specified by:
    
    size in class HttpHeaders
  - names
```
public Set<String> names()
```
    Description copied from class: HttpHeaders
    
    Returns a new Set that contains the names of all headers in this object. Note that modifying the returned Set will not affect the state of this object. If you intend to enumerate over the header entries only, use HttpHeaders.iterator() instead, which has much less overhead.
    
    Specified by:
    
    names in class HttpHeaders
  - add
```
public HttpHeaders add(String name,
                       Object value)
```
    Specified by:
    
    add in class HttpHeaders
    
    See Also:
    
    HttpHeaders.add(CharSequence, Object)
  - add
```
public HttpHeaders add(String name,
                       Iterable<?> values)
```
    Specified by:
    
    add in class HttpHeaders
    
    See Also:
    
    HttpHeaders.add(CharSequence, Iterable)
  - addInt
```
public HttpHeaders addInt(CharSequence name,
                          int value)
```
    Description copied from class: HttpHeaders
    
    Add the name to value.
    
    Specified by:
    
    addInt in class HttpHeaders
    
    Parameters:
    
    name - The name to modify
    
    value - The value
    
    Returns:
    
    this
  - addShort
```
public HttpHeaders addShort(CharSequence name,
                            short value)
```
    Description copied from class: HttpHeaders
    
    Add the name to value.
    
    Specified by:
    
    addShort in class HttpHeaders
    
    Parameters:
    
    name - The name to modify
    
    value - The value
    
    Returns:
    
    this
  - set
```
public HttpHeaders set(String name,
                       Object value)
```
    Specified by:
    
    set in class HttpHeaders
    
    See Also:
    
    HttpHeaders.set(CharSequence, Object)
  - set
```
public HttpHeaders set(String name,
                       Iterable<?> values)
```
    Specified by:
    
    set in class HttpHeaders
    
    See Also:
    
    HttpHeaders.set(CharSequence, Iterable)
  - setInt
```
public HttpHeaders setInt(CharSequence name,
                          int value)
```
    Description copied from class: HttpHeaders
    
    Set the name to value. This will remove all previous values associated with name.
    
    Specified by:
    
    setInt in class HttpHeaders
    
    Parameters:
    
    name - The name to modify
    
    value - The value
    
    Returns:
    
    this
  - setShort
```
public HttpHeaders setShort(CharSequence name,
                            short value)
```
    Description copied from class: HttpHeaders
    
    Set the name to value. This will remove all previous values associated with name.
    
    Specified by:
    
    setShort in class HttpHeaders
    
    Parameters:
    
    name - The name to modify
    
    value - The value
    
    Returns:
    
    this
  - remove
```
public HttpHeaders remove(String name)
```
    Specified by:
    
    remove in class HttpHeaders
    
    See Also:
    
    HttpHeaders.remove(CharSequence)
  - clear
```
public HttpHeaders clear()
```
    Description copied from class: HttpHeaders
    
    Removes all headers from this HttpMessage.
    
    Specified by:
    
    clear in class HttpHeaders
    
    Returns:
    
    this

Class ReadOnlyHttpHeaders

Constructor Summary

Method Summary

Methods inherited from class io.netty5.handler.codec.http.HttpHeaders

Methods inherited from class java.lang.Object

Methods inherited from interface java.lang.Iterable

Constructor Detail

ReadOnlyHttpHeaders

Method Detail

get

getInt

getInt

getShort

getShort

getTimeMillis

getTimeMillis

getAll

entries

contains

contains

containsValue

valueStringIterator

valueCharSequenceIterator

iterator

iteratorCharSequence

isEmpty

size

names

add

add

addInt

addShort

set

set

setInt

setShort

remove

clear