HttpServletResponseWrapper

java.lang.Object
- jakarta.servlet.ServletResponseWrapper
- - jakarta.servlet.http.HttpServletResponseWrapper

All Implemented Interfaces:

HttpServletResponse, ServletResponse
```
public class HttpServletResponseWrapper
extends ServletResponseWrapper
implements HttpServletResponse
```
Provides a convenient implementation of the HttpServletResponse interface that can be subclassed by developers wishing to adapt the response from a Servlet. This class implements the Wrapper or Decorator pattern. Methods default to calling through to the wrapped response object.

Since:

Servlet 2.3

See Also:

HttpServletResponse

Field Summary
- Fields inherited from interface jakarta.servlet.http.HttpServletResponse
  SC_ACCEPTED, SC_BAD_GATEWAY, SC_BAD_REQUEST, SC_CONFLICT, SC_CONTINUE, SC_CREATED, SC_EXPECTATION_FAILED, SC_FORBIDDEN, SC_FOUND, SC_GATEWAY_TIMEOUT, SC_GONE, SC_HTTP_VERSION_NOT_SUPPORTED, SC_INTERNAL_SERVER_ERROR, SC_LENGTH_REQUIRED, SC_METHOD_NOT_ALLOWED, SC_MOVED_PERMANENTLY, SC_MOVED_TEMPORARILY, SC_MULTIPLE_CHOICES, SC_NO_CONTENT, SC_NON_AUTHORITATIVE_INFORMATION, SC_NOT_ACCEPTABLE, SC_NOT_FOUND, SC_NOT_IMPLEMENTED, SC_NOT_MODIFIED, SC_OK, SC_PARTIAL_CONTENT, SC_PAYMENT_REQUIRED, SC_PRECONDITION_FAILED, SC_PROXY_AUTHENTICATION_REQUIRED, SC_REQUEST_ENTITY_TOO_LARGE, SC_REQUEST_TIMEOUT, SC_REQUEST_URI_TOO_LONG, SC_REQUESTED_RANGE_NOT_SATISFIABLE, SC_RESET_CONTENT, SC_SEE_OTHER, SC_SERVICE_UNAVAILABLE, SC_SWITCHING_PROTOCOLS, SC_TEMPORARY_REDIRECT, SC_UNAUTHORIZED, SC_UNSUPPORTED_MEDIA_TYPE, SC_USE_PROXY

Constructor Summary

Constructors
Constructor and Description

HttpServletResponseWrapper(HttpServletResponse response)
Constructs a response adaptor wrapping the given response.

Constructors
Constructor and Description
`HttpServletResponseWrapper(HttpServletResponse response)` Constructs a response adaptor wrapping the given response.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`addCookie(Cookie cookie)` The default behavior of this method is to call addCookie(Cookie cookie) on the wrapped response object.
`void`	`addDateHeader(java.lang.String name, long date)` The default behavior of this method is to call addDateHeader(String name, long date) on the wrapped response object.
`void`	`addHeader(java.lang.String name, java.lang.String value)` The default behavior of this method is to return addHeader(String name, String value) on the wrapped response object.
`void`	`addIntHeader(java.lang.String name, int value)` The default behavior of this method is to call addIntHeader(String name, int value) on the wrapped response object.
`boolean`	`containsHeader(java.lang.String name)` The default behavior of this method is to call containsHeader(String name) on the wrapped response object.
`java.lang.String`	`encodeRedirectURL(java.lang.String url)` The default behavior of this method is to return encodeRedirectURL(String url) on the wrapped response object.
`java.lang.String`	`encodeURL(java.lang.String url)` The default behavior of this method is to call encodeURL(String url) on the wrapped response object.
`java.lang.String`	`getHeader(java.lang.String name)` The default behaviour of this method is to call `HttpServletResponse.getHeader(java.lang.String)` on the wrapped response object.
`java.util.Collection<java.lang.String>`	`getHeaderNames()` The default behaviour of this method is to call `HttpServletResponse.getHeaderNames()` on the wrapped response object.
`java.util.Collection<java.lang.String>`	`getHeaders(java.lang.String name)` The default behaviour of this method is to call `HttpServletResponse.getHeaders(java.lang.String)` on the wrapped response object.
`int`	`getStatus()` The default behaviour of this method is to call `HttpServletResponse.getStatus()` on the wrapped response object.
`java.util.function.Supplier<java.util.Map<java.lang.String,java.lang.String>>`	`getTrailerFields()` The default behaviour of this method is to call `HttpServletResponse.getTrailerFields()` on the wrapped response object.
`void`	`sendError(int sc)` The default behavior of this method is to call sendError(int sc) on the wrapped response object.
`void`	`sendError(int sc, java.lang.String msg)` The default behavior of this method is to call sendError(int sc, String msg) on the wrapped response object.
`void`	`sendRedirect(java.lang.String location)` The default behavior of this method is to return sendRedirect(String location) on the wrapped response object.
`void`	`setDateHeader(java.lang.String name, long date)` The default behavior of this method is to call setDateHeader(String name, long date) on the wrapped response object.
`void`	`setHeader(java.lang.String name, java.lang.String value)` The default behavior of this method is to return setHeader(String name, String value) on the wrapped response object.
`void`	`setIntHeader(java.lang.String name, int value)` The default behavior of this method is to call setIntHeader(String name, int value) on the wrapped response object.
`void`	`setStatus(int sc)` The default behavior of this method is to call setStatus(int sc) on the wrapped response object.
`void`	`setTrailerFields(java.util.function.Supplier<java.util.Map<java.lang.String,java.lang.String>> supplier)` The default behaviour of this method is to call `HttpServletResponse.setTrailerFields(java.util.function.Supplier<java.util.Map<java.lang.String, java.lang.String>>)` on the wrapped response object.

Methods inherited from class jakarta.servlet.ServletResponseWrapper
flushBuffer, getBufferSize, getCharacterEncoding, getContentType, getLocale, getOutputStream, getResponse, getWriter, isCommitted, isWrapperFor, isWrapperFor, reset, resetBuffer, setBufferSize, setCharacterEncoding, setContentLength, setContentLengthLong, setContentType, setLocale, setResponse

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

Methods inherited from interface jakarta.servlet.ServletResponse
flushBuffer, getBufferSize, getCharacterEncoding, getContentType, getLocale, getOutputStream, getWriter, isCommitted, reset, resetBuffer, setBufferSize, setCharacterEncoding, setContentLength, setContentLengthLong, setContentType, setLocale

- Constructor Detail
  - HttpServletResponseWrapper
```
public HttpServletResponseWrapper(HttpServletResponse response)
```
    Constructs a response adaptor wrapping the given response.
    
    Parameters:
    
    response - the HttpServletResponse to be wrapped.
    
    Throws:
    
    java.lang.IllegalArgumentException - if the response is null
- Method Detail
  - addCookie
```
public void addCookie(Cookie cookie)
```
    The default behavior of this method is to call addCookie(Cookie cookie) on the wrapped response object.
    
    Specified by:
    
    addCookie in interface HttpServletResponse
    
    Parameters:
    
    cookie - the Cookie to return to the client
  - containsHeader
```
public boolean containsHeader(java.lang.String name)
```
    The default behavior of this method is to call containsHeader(String name) on the wrapped response object.
    
    Specified by:
    
    containsHeader in interface HttpServletResponse
    
    Parameters:
    
    name - the header name
    
    Returns:
    
    true if the named response header has already been set; false otherwise
  - encodeURL
```
public java.lang.String encodeURL(java.lang.String url)
```
    The default behavior of this method is to call encodeURL(String url) on the wrapped response object.
    
    Specified by:
    
    encodeURL in interface HttpServletResponse
    
    Parameters:
    
    url - the url to be encoded.
    
    Returns:
    
    the encoded URL if encoding is needed; the unchanged URL otherwise.
  - encodeRedirectURL
```
public java.lang.String encodeRedirectURL(java.lang.String url)
```
    The default behavior of this method is to return encodeRedirectURL(String url) on the wrapped response object.
    
    Specified by:
    
    encodeRedirectURL in interface HttpServletResponse
    
    Parameters:
    
    url - the url to be encoded.
    
    Returns:
    
    the encoded URL if encoding is needed; the unchanged URL otherwise.
    
    See Also:
    
    HttpServletResponse.sendRedirect(java.lang.String)
  - sendError
```
public void sendError(int sc,
                      java.lang.String msg)
               throws java.io.IOException
```
    The default behavior of this method is to call sendError(int sc, String msg) on the wrapped response object.
    
    Specified by:
    
    sendError in interface HttpServletResponse
    
    Parameters:
    
    sc - the error status code
    
    msg - the descriptive message
    
    Throws:
    
    java.io.IOException - If an input or output exception occurs
  - sendError
```
public void sendError(int sc)
               throws java.io.IOException
```
    The default behavior of this method is to call sendError(int sc) on the wrapped response object.
    
    Specified by:
    
    sendError in interface HttpServletResponse
    
    Parameters:
    
    sc - the error status code
    
    Throws:
    
    java.io.IOException - If an input or output exception occurs
  - sendRedirect
```
public void sendRedirect(java.lang.String location)
                  throws java.io.IOException
```
    The default behavior of this method is to return sendRedirect(String location) on the wrapped response object.
    
    Specified by:
    
    sendRedirect in interface HttpServletResponse
    
    Parameters:
    
    location - the redirect location URL
    
    Throws:
    
    java.io.IOException - If an input or output exception occurs
  - setDateHeader
```
public void setDateHeader(java.lang.String name,
                          long date)
```
    The default behavior of this method is to call setDateHeader(String name, long date) on the wrapped response object.
    
    Specified by:
    
    setDateHeader in interface HttpServletResponse
    
    Parameters:
    
    name - the name of the header to set
    
    date - the assigned date value
    
    See Also:
    
    HttpServletResponse.containsHeader(java.lang.String), HttpServletResponse.addDateHeader(java.lang.String, long)
  - addDateHeader
```
public void addDateHeader(java.lang.String name,
                          long date)
```
    The default behavior of this method is to call addDateHeader(String name, long date) on the wrapped response object.
    
    Specified by:
    
    addDateHeader in interface HttpServletResponse
    
    Parameters:
    
    name - the name of the header to set
    
    date - the additional date value
    
    See Also:
    
    HttpServletResponse.setDateHeader(java.lang.String, long)
  - setHeader
```
public void setHeader(java.lang.String name,
                      java.lang.String value)
```
    The default behavior of this method is to return setHeader(String name, String value) on the wrapped response object.
    
    Specified by:
    
    setHeader in interface HttpServletResponse
    
    Parameters:
    
    name - the name of the header
    
    value - the header value If it contains octet string, it should be encoded according to RFC 2047 (http://www.ietf.org/rfc/rfc2047.txt)
    
    See Also:
    
    HttpServletResponse.containsHeader(java.lang.String), HttpServletResponse.addHeader(java.lang.String, java.lang.String)
  - addHeader
```
public void addHeader(java.lang.String name,
                      java.lang.String value)
```
    The default behavior of this method is to return addHeader(String name, String value) on the wrapped response object.
    
    Specified by:
    
    addHeader in interface HttpServletResponse
    
    Parameters:
    
    name - the name of the header
    
    value - the additional header value If it contains octet string, it should be encoded according to RFC 2047 (http://www.ietf.org/rfc/rfc2047.txt)
    
    See Also:
    
    HttpServletResponse.setHeader(java.lang.String, java.lang.String)
  - setIntHeader
```
public void setIntHeader(java.lang.String name,
                         int value)
```
    The default behavior of this method is to call setIntHeader(String name, int value) on the wrapped response object.
    
    Specified by:
    
    setIntHeader in interface HttpServletResponse
    
    Parameters:
    
    name - the name of the header
    
    value - the assigned integer value
    
    See Also:
    
    HttpServletResponse.containsHeader(java.lang.String), HttpServletResponse.addIntHeader(java.lang.String, int)
  - addIntHeader
```
public void addIntHeader(java.lang.String name,
                         int value)
```
    The default behavior of this method is to call addIntHeader(String name, int value) on the wrapped response object.
    
    Specified by:
    
    addIntHeader in interface HttpServletResponse
    
    Parameters:
    
    name - the name of the header
    
    value - the assigned integer value
    
    See Also:
    
    HttpServletResponse.setIntHeader(java.lang.String, int)
  - setStatus
```
public void setStatus(int sc)
```
    The default behavior of this method is to call setStatus(int sc) on the wrapped response object.
    
    Specified by:
    
    setStatus in interface HttpServletResponse
    
    Parameters:
    
    sc - the status code
    
    See Also:
    
    HttpServletResponse.sendError(int, java.lang.String)
  - getStatus
```
public int getStatus()
```
    The default behaviour of this method is to call HttpServletResponse.getStatus() on the wrapped response object.
    
    Specified by:
    
    getStatus in interface HttpServletResponse
    
    Returns:
    
    the current status code of the wrapped response
    
    Since:
    
    Servlet 3.0
  - getHeader
```
public java.lang.String getHeader(java.lang.String name)
```
    The default behaviour of this method is to call HttpServletResponse.getHeader(java.lang.String) on the wrapped response object.
    
    Specified by:
    
    getHeader in interface HttpServletResponse
    
    Parameters:
    
    name - the name of the response header whose value to return
    
    Returns:
    
    the value of the response header with the given name, or null if no header with the given name has been set on the wrapped response
    
    Since:
    
    Servlet 3.0
  - getHeaders
```
public java.util.Collection<java.lang.String> getHeaders(java.lang.String name)
```
    The default behaviour of this method is to call HttpServletResponse.getHeaders(java.lang.String) on the wrapped response object.
    Any changes to the returned Collection must not affect this HttpServletResponseWrapper.
    
    Specified by:
    
    getHeaders in interface HttpServletResponse
    
    Parameters:
    
    name - the name of the response header whose values to return
    
    Returns:
    
    a (possibly empty) Collection of the values of the response header with the given name
    
    Since:
    
    Servlet 3.0
  - getHeaderNames
```
public java.util.Collection<java.lang.String> getHeaderNames()
```
    The default behaviour of this method is to call HttpServletResponse.getHeaderNames() on the wrapped response object.
    Any changes to the returned Collection must not affect this HttpServletResponseWrapper.
    
    Specified by:
    
    getHeaderNames in interface HttpServletResponse
    
    Returns:
    
    a (possibly empty) Collection of the names of the response headers
    
    Since:
    
    Servlet 3.0
  - setTrailerFields
```
public void setTrailerFields(java.util.function.Supplier<java.util.Map<java.lang.String,java.lang.String>> supplier)
```
    The default behaviour of this method is to call HttpServletResponse.setTrailerFields(java.util.function.Supplier<java.util.Map<java.lang.String, java.lang.String>>) on the wrapped response object.
    
    Specified by:
    
    setTrailerFields in interface HttpServletResponse
    
    Parameters:
    
    supplier - of trailer headers
    
    Since:
    
    Servlet 4.0
  - getTrailerFields
```
public java.util.function.Supplier<java.util.Map<java.lang.String,java.lang.String>> getTrailerFields()
```
    The default behaviour of this method is to call HttpServletResponse.getTrailerFields() on the wrapped response object.
    
    Specified by:
    
    getTrailerFields in interface HttpServletResponse
    
    Returns:
    
    supplier of trailer headers
    
    Since:
    
    Servlet 4.0

Class HttpServletResponseWrapper

Field Summary

Fields inherited from interface jakarta.servlet.http.HttpServletResponse

Constructor Summary

Method Summary

Methods inherited from class jakarta.servlet.ServletResponseWrapper

Methods inherited from class java.lang.Object

Methods inherited from interface jakarta.servlet.ServletResponse

Constructor Detail

HttpServletResponseWrapper

Method Detail

addCookie

containsHeader

encodeURL

encodeRedirectURL

sendError

sendError

sendRedirect

setDateHeader

addDateHeader

setHeader

addHeader

setIntHeader

addIntHeader

setStatus

getStatus

getHeader

getHeaders

getHeaderNames

setTrailerFields

getTrailerFields