HttpServletResponseWrapper (Servlet 3.0 API Documentation

java.lang.Object
- javax.servlet.ServletResponseWrapper
- - javax.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:

v 2.3

See Also:
HttpServletResponse

Field Summary
- Fields inherited from interface javax.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

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)` Deprecated. As of Version 3.0 of the Java Servlet API
`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)` Deprecated. As of Version 3.0 of the Java Servlet API
`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)` Return the value for the specified header, or `null` if this header has not been set.
`java.util.Collection<java.lang.String>`	`getHeaderNames()` Get the header names set for this HTTP response.
`java.util.Collection<java.lang.String>`	`getHeaders(java.lang.String name)` Return a Collection of all the header values associated with the specified header name.
`int`	`getStatus()` Get the HTTP status code for this Response.
`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`	`setStatus(int sc, java.lang.String sm)` Deprecated. As of Version 3.0 of the Java Servlet API

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

- Constructor Detail
  - HttpServletResponseWrapper
```
public HttpServletResponseWrapper(HttpServletResponse response)
```
    Constructs a response adaptor wrapping the given response.
    
    Parameters:
    response - The response 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), HttpServletResponse.encodeUrl(java.lang.String)
  - encodeUrl
```
public java.lang.String encodeUrl(java.lang.String url)
```
    Deprecated. As of Version 3.0 of the Java Servlet API
    
    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)
```
    Deprecated. As of Version 3.0 of the Java Servlet API
    
    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.
  - 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)
  - setStatus
```
public void setStatus(int sc,
             java.lang.String sm)
```
    Deprecated. As of Version 3.0 of the Java Servlet API
    
    The default behavior of this method is to call setStatus(int sc, String sm) on the wrapped response object.
    
    Specified by:
    
    setStatus in interface HttpServletResponse
    
    Parameters:
    sc - the status code
    sm - the status message
  - getStatus
```
public int getStatus()
```
    Get the HTTP status code for this Response.
    The default implementation is to call HttpServletResponse.getStatus() on the wrapped HttpServletResponse.
    
    Specified by:
    
    getStatus in interface HttpServletResponse
    
    Returns:
    The HTTP status code for this Response
    Since:
    
    Servlet 3.0
  - getHeader
```
public java.lang.String getHeader(java.lang.String name)
```
    Return the value for the specified header, or null if this header has not been set. If more than one value was added for this name, only the first is returned; use HttpServletResponse.getHeaders(String) to retrieve all of them.
    The default implementation is to call HttpServletResponse.getHeader(String) on the wrapped HttpServletResponse.
    
    Specified by:
    
    getHeader in interface HttpServletResponse
    
    Parameters:
    name - Header name to look up
    
    Returns:
    The first value for the specified header. This is the raw value so if multiple values are specified in the first header then they will be returned as a single header value .
    Since:
    
    Servlet 3.0
  - getHeaders
```
public java.util.Collection<java.lang.String> getHeaders(java.lang.String name)
```
    Return a Collection of all the header values associated with the specified header name.
    The default implementation is to call HttpServletResponse.getHeaders(String) on the wrapped HttpServletResponse.
    
    Specified by:
    
    getHeaders in interface HttpServletResponse
    
    Parameters:
    name - Header name to look up
    
    Returns:
    The values for the specified header. These are the raw values so if multiple values are specified in a single header that will be returned as a single header value.
    Since:
    
    Servlet 3.0
  - getHeaderNames
```
public java.util.Collection<java.lang.String> getHeaderNames()
```
    Get the header names set for this HTTP response.
    The default implementation is to call HttpServletResponse.getHeaderNames() on the wrapped HttpServletResponse.
    
    Specified by:
    
    getHeaderNames in interface HttpServletResponse
    
    Returns:
    The header names set for this HTTP response.
    Since:
    
    Servlet 3.0

Class HttpServletResponseWrapper

Field Summary

Fields inherited from interface javax.servlet.http.HttpServletResponse

Constructor Summary

Method Summary

Methods inherited from class javax.servlet.ServletResponseWrapper

Methods inherited from class java.lang.Object

Methods inherited from interface javax.servlet.ServletResponse

Constructor Detail

HttpServletResponseWrapper

Method Detail

addCookie

containsHeader

encodeURL

encodeRedirectURL

encodeUrl

encodeRedirectUrl

sendError

sendError

sendRedirect

setDateHeader

addDateHeader

setHeader

addHeader

setIntHeader

addIntHeader

setStatus

setStatus

getStatus

getHeader

getHeaders

getHeaderNames