java.lang.Object
- org.springframework.web.servlet.mvc.condition.AbstractRequestCondition<HeadersRequestCondition>
- - org.springframework.web.servlet.mvc.condition.HeadersRequestCondition

All Implemented Interfaces:
RequestCondition<HeadersRequestCondition>
```
public final class HeadersRequestCondition
extends AbstractRequestCondition<HeadersRequestCondition>
```
A logical conjunction (' && ') request condition that matches a request against a set of header expressions with syntax defined in RequestMapping.headers().
Expressions passed to the constructor with header names 'Accept' or 'Content-Type' are ignored. See ConsumesRequestCondition and ProducesRequestCondition for those.
Since:
3.1
Author:
Arjen Poutsma, Rossen Stoyanchev

Constructor Summary
Constructors
Constructor Description
HeadersRequestCondition(String... headers)
Create a new instance from the given header expressions.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`HeadersRequestCondition`	`combine(HeadersRequestCondition other)`	Returns a new instance with the union of the header expressions from "this" and the "other" instance.
`int`	`compareTo(HeadersRequestCondition other, HttpServletRequest request)`	Returns: 0 if the two conditions have the same number of header expressions Less than 0 if "this" instance has more header expressions Greater than 0 if the "other" instance has more header expressions
`protected Collection<org.springframework.web.servlet.mvc.condition.HeadersRequestCondition.HeaderExpression>`	`getContent()`	Return the discrete items a request condition is composed of.
`Set<NameValueExpression<String>>`	`getExpressions()`	Return the contained request header expressions.
`HeadersRequestCondition`	`getMatchingCondition(HttpServletRequest request)`	Returns "this" instance if the request matches all expressions; or `null` otherwise.
`protected String`	`getToStringInfix()`	The notation to use when printing discrete items of content.

Methods inherited from class org.springframework.web.servlet.mvc.condition.AbstractRequestCondition
equals, hashCode, isEmpty, toString

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

- Constructor Detail
  - HeadersRequestCondition
```
public HeadersRequestCondition(String... headers)
```
    Create a new instance from the given header expressions. Expressions with header names 'Accept' or 'Content-Type' are ignored. See ConsumesRequestCondition and ProducesRequestCondition for those.
    Parameters:
    headers - media type expressions with syntax defined in RequestMapping.headers(); if 0, the condition will match to every request
- Method Detail
  - getExpressions
```
public Set<NameValueExpression<String>> getExpressions()
```
    Return the contained request header expressions.
  - getContent
```
protected Collection<org.springframework.web.servlet.mvc.condition.HeadersRequestCondition.HeaderExpression> getContent()
```
    Description copied from class: AbstractRequestCondition
    Return the discrete items a request condition is composed of.
    For example URL patterns, HTTP request methods, param expressions, etc.
    Specified by:
    getContent in class AbstractRequestCondition<HeadersRequestCondition>
    Returns:
    a collection of objects (never null)
  - getToStringInfix
```
protected String getToStringInfix()
```
    Description copied from class: AbstractRequestCondition
    The notation to use when printing discrete items of content.
    For example " || " for URL patterns or " && " for param expressions.
    Specified by:
    getToStringInfix in class AbstractRequestCondition<HeadersRequestCondition>
  - combine
```
public HeadersRequestCondition combine(HeadersRequestCondition other)
```
    Returns a new instance with the union of the header expressions from "this" and the "other" instance.
    Parameters:
    other - the condition to combine with.
    Returns:
    a request condition instance that is the result of combining the two condition instances.
  - getMatchingCondition
```
public HeadersRequestCondition getMatchingCondition(HttpServletRequest request)
```
    Returns "this" instance if the request matches all expressions; or null otherwise.
    Returns:
    a condition instance in case of a match or null otherwise.
  - compareTo
```
public int compareTo(HeadersRequestCondition other,
                     HttpServletRequest request)
```
    Returns:
    0 if the two conditions have the same number of header expressions
    Less than 0 if "this" instance has more header expressions
    Greater than 0 if the "other" instance has more header expressions
    It is assumed that both instances have been obtained via getMatchingCondition(HttpServletRequest) and each instance contains the matching header expression only or is otherwise empty.

Class HeadersRequestCondition

Constructor Summary

Method Summary

Methods inherited from class org.springframework.web.servlet.mvc.condition.AbstractRequestCondition

Methods inherited from class java.lang.Object

Constructor Detail

HeadersRequestCondition

Method Detail

getExpressions

getContent

getToStringInfix

combine

getMatchingCondition

compareTo