HttpHeaders (parent 4.0.0 API)

```
public interface HttpHeaders
```
HTTP constant headers.

Field Summary

Fields
Modifier and Type	Field and Description
`static java.lang.String`	`ACCEPT` See HTTP/1.1 documentation.
`static java.lang.String`	`ACCEPT_CHARSET` See HTTP/1.1 documentation.
`static java.lang.String`	`ACCEPT_ENCODING` See HTTP/1.1 documentation.
`static java.lang.String`	`ACCEPT_LANGUAGE` See HTTP/1.1 documentation.
`static java.lang.String`	`AUTHORIZATION` See HTTP/1.1 documentation.
`static java.lang.String`	`CACHE_CONTROL` See HTTP/1.1 documentation.
`static java.lang.String`	`CONTENT_DISPOSITION` See HTTP/1.1 documentation.
`static java.lang.String`	`CONTENT_ENCODING` See HTTP/1.1 documentation.
`static java.lang.String`	`CONTENT_LANGUAGE` See HTTP/1.1 documentation.
`static java.lang.String`	`CONTENT_LENGTH` See HTTP/1.1 documentation.
`static java.lang.String`	`CONTENT_LOCATION` See HTTP/1.1 documentation.
`static java.lang.String`	`CONTENT_TYPE` See HTTP/1.1 documentation.
`static java.lang.String`	`COOKIE` See IETF RFC 2109.
`static java.lang.String`	`DATE` See HTTP/1.1 documentation.
`static java.lang.String`	`ETAG` See HTTP/1.1 documentation.
`static java.lang.String`	`EXPIRES` See HTTP/1.1 documentation.
`static java.lang.String`	`HOST` See HTTP/1.1 documentation.
`static java.lang.String`	`IF_MATCH` See HTTP/1.1 documentation.
`static java.lang.String`	`IF_MODIFIED_SINCE` See HTTP/1.1 documentation.
`static java.lang.String`	`IF_NONE_MATCH` See HTTP/1.1 documentation.
`static java.lang.String`	`IF_UNMODIFIED_SINCE` See HTTP/1.1 documentation.
`static java.lang.String`	`LAST_MODIFIED` See HTTP/1.1 documentation.
`static java.lang.String`	`LOCATION` See HTTP/1.1 documentation.
`static java.lang.String`	`SET_COOKIE` See IETF RFC 2109.
`static java.lang.String`	`USER_AGENT` See HTTP/1.1 documentation.
`static java.lang.String`	`VARY` See HTTP/1.1 documentation.
`static java.lang.String`	`WWW_AUTHENTICATE` See HTTP/1.1 documentation.
`static java.lang.String`	`X_WATSON_AUTHORIZATION_TOKEN` The Authorization token header.
`static java.lang.String`	`X_WATSON_LEARNING_OPT_OUT` Allow Watson to collect the payload.
`static java.lang.String`	`X_WATSON_TEST` Mark Bluemix interactions from tests.

- Field Detail
  - ACCEPT
```
static final java.lang.String ACCEPT
```
    See HTTP/1.1 documentation.
    
    See Also:
    
    Constant Field Values
  - ACCEPT_CHARSET
```
static final java.lang.String ACCEPT_CHARSET
```
    See HTTP/1.1 documentation.
    
    See Also:
    
    Constant Field Values
  - ACCEPT_ENCODING
```
static final java.lang.String ACCEPT_ENCODING
```
    See HTTP/1.1 documentation.
    
    See Also:
    
    Constant Field Values
  - ACCEPT_LANGUAGE
```
static final java.lang.String ACCEPT_LANGUAGE
```
    See HTTP/1.1 documentation.
    
    See Also:
    
    Constant Field Values
  - AUTHORIZATION
```
static final java.lang.String AUTHORIZATION
```
    See HTTP/1.1 documentation.
    
    See Also:
    
    Constant Field Values
  - CACHE_CONTROL
```
static final java.lang.String CACHE_CONTROL
```
    See HTTP/1.1 documentation.
    
    See Also:
    
    Constant Field Values
  - CONTENT_ENCODING
```
static final java.lang.String CONTENT_ENCODING
```
    See HTTP/1.1 documentation.
    
    See Also:
    
    Constant Field Values
  - CONTENT_LANGUAGE
```
static final java.lang.String CONTENT_LANGUAGE
```
    See HTTP/1.1 documentation.
    
    See Also:
    
    Constant Field Values
  - CONTENT_DISPOSITION
```
static final java.lang.String CONTENT_DISPOSITION
```
    See HTTP/1.1 documentation.
    
    See Also:
    
    Constant Field Values
  - CONTENT_LENGTH
```
static final java.lang.String CONTENT_LENGTH
```
    See HTTP/1.1 documentation.
    
    See Also:
    
    Constant Field Values
  - CONTENT_LOCATION
```
static final java.lang.String CONTENT_LOCATION
```
    See HTTP/1.1 documentation.
    
    See Also:
    
    Constant Field Values
  - CONTENT_TYPE
```
static final java.lang.String CONTENT_TYPE
```
    See HTTP/1.1 documentation.
    
    See Also:
    
    Constant Field Values
  - COOKIE
```
static final java.lang.String COOKIE
```
    See IETF RFC 2109.
    
    See Also:
    
    Constant Field Values
  - DATE
```
static final java.lang.String DATE
```
    See HTTP/1.1 documentation.
    
    See Also:
    
    Constant Field Values
  - ETAG
```
static final java.lang.String ETAG
```
    See HTTP/1.1 documentation.
    
    See Also:
    
    Constant Field Values
  - EXPIRES
```
static final java.lang.String EXPIRES
```
    See HTTP/1.1 documentation.
    
    See Also:
    
    Constant Field Values
  - HOST
```
static final java.lang.String HOST
```
    See HTTP/1.1 documentation.
    
    See Also:
    
    Constant Field Values
  - IF_MATCH
```
static final java.lang.String IF_MATCH
```
    See HTTP/1.1 documentation.
    
    See Also:
    
    Constant Field Values
  - IF_MODIFIED_SINCE
```
static final java.lang.String IF_MODIFIED_SINCE
```
    See HTTP/1.1 documentation.
    
    See Also:
    
    Constant Field Values
  - IF_NONE_MATCH
```
static final java.lang.String IF_NONE_MATCH
```
    See HTTP/1.1 documentation.
    
    See Also:
    
    Constant Field Values
  - IF_UNMODIFIED_SINCE
```
static final java.lang.String IF_UNMODIFIED_SINCE
```
    See HTTP/1.1 documentation.
    
    See Also:
    
    Constant Field Values
  - LAST_MODIFIED
```
static final java.lang.String LAST_MODIFIED
```
    See HTTP/1.1 documentation.
    
    See Also:
    
    Constant Field Values
  - LOCATION
```
static final java.lang.String LOCATION
```
    See HTTP/1.1 documentation.
    
    See Also:
    
    Constant Field Values
  - SET_COOKIE
```
static final java.lang.String SET_COOKIE
```
    See IETF RFC 2109.
    
    See Also:
    
    Constant Field Values
  - USER_AGENT
```
static final java.lang.String USER_AGENT
```
    See HTTP/1.1 documentation.
    
    See Also:
    
    Constant Field Values
  - VARY
```
static final java.lang.String VARY
```
    See HTTP/1.1 documentation.
    
    See Also:
    
    Constant Field Values
  - WWW_AUTHENTICATE
```
static final java.lang.String WWW_AUTHENTICATE
```
    See HTTP/1.1 documentation.
    
    See Also:
    
    Constant Field Values
  - X_WATSON_AUTHORIZATION_TOKEN
```
static final java.lang.String X_WATSON_AUTHORIZATION_TOKEN
```
    The Authorization token header.
    
    See Also:
    
    Constant Field Values
  - X_WATSON_LEARNING_OPT_OUT
```
static final java.lang.String X_WATSON_LEARNING_OPT_OUT
```
    Allow Watson to collect the payload.
    
    See Also:
    
    Constant Field Values
  - X_WATSON_TEST
```
static final java.lang.String X_WATSON_TEST
```
    Mark Bluemix interactions from tests.
    
    See Also:
    
    Constant Field Values

Interface HttpHeaders

Field Summary

Field Detail

ACCEPT

ACCEPT_CHARSET

ACCEPT_ENCODING

ACCEPT_LANGUAGE

AUTHORIZATION

CACHE_CONTROL

CONTENT_ENCODING

CONTENT_LANGUAGE

CONTENT_DISPOSITION

CONTENT_LENGTH

CONTENT_LOCATION

CONTENT_TYPE

COOKIE

DATE

ETAG

EXPIRES

HOST

IF_MATCH

IF_MODIFIED_SINCE

IF_NONE_MATCH

IF_UNMODIFIED_SINCE

LAST_MODIFIED

LOCATION

SET_COOKIE

USER_AGENT

VARY

WWW_AUTHENTICATE

X_WATSON_AUTHORIZATION_TOKEN

X_WATSON_LEARNING_OPT_OUT

X_WATSON_TEST