org.springframework.web.client

Interface RestOperations

All Known Implementing Classes:

RestTemplate

public interface RestOperations

Interface specifying a basic set of RESTful operations. Implemented by RestTemplate. Not often used directly, but a useful option to enhance testability, as it can easily be mocked or stubbed.

Since:

3.0

Author:

Arjen Poutsma, Juergen Hoeller

See Also:

RestTemplate, AsyncRestOperations

Method Summary

Modifier and Type	Method and Description
void	delete(String url, Map<String,?> uriVariables) Delete the resources at the specified URI.
void	delete(String url, Object... uriVariables) Delete the resources at the specified URI.
void	delete(URI url) Delete the resources at the specified URL.
<T> ResponseEntity<T>	exchange(String url, HttpMethod method, HttpEntity<?> requestEntity, Class<T> responseType, Map<String,?> uriVariables) Execute the HTTP method to the given URI template, writing the given request entity to the request, and returns the response as ResponseEntity.
<T> ResponseEntity<T>	exchange(String url, HttpMethod method, HttpEntity<?> requestEntity, Class<T> responseType, Object... uriVariables) Execute the HTTP method to the given URI template, writing the given request entity to the request, and returns the response as ResponseEntity.
<T> ResponseEntity<T>	exchange(String url, HttpMethod method, HttpEntity<?> requestEntity, ParameterizedTypeReference<T> responseType, Map<String,?> uriVariables) Execute the HTTP method to the given URI template, writing the given request entity to the request, and returns the response as ResponseEntity.
<T> ResponseEntity<T>	exchange(String url, HttpMethod method, HttpEntity<?> requestEntity, ParameterizedTypeReference<T> responseType, Object... uriVariables) Execute the HTTP method to the given URI template, writing the given request entity to the request, and returns the response as ResponseEntity.
<T> ResponseEntity<T>	exchange(URI url, HttpMethod method, HttpEntity<?> requestEntity, Class<T> responseType) Execute the HTTP method to the given URI template, writing the given request entity to the request, and returns the response as ResponseEntity.
<T> ResponseEntity<T>	exchange(URI url, HttpMethod method, HttpEntity<?> requestEntity, ParameterizedTypeReference<T> responseType) Execute the HTTP method to the given URI template, writing the given request entity to the request, and returns the response as ResponseEntity.
<T> T	execute(String url, HttpMethod method, RequestCallback requestCallback, ResponseExtractor<T> responseExtractor, Map<String,?> uriVariables) Execute the HTTP method to the given URI template, preparing the request with the RequestCallback, and reading the response with a ResponseExtractor.
<T> T	execute(String url, HttpMethod method, RequestCallback requestCallback, ResponseExtractor<T> responseExtractor, Object... uriVariables) Execute the HTTP method to the given URI template, preparing the request with the RequestCallback, and reading the response with a ResponseExtractor.
<T> T	execute(URI url, HttpMethod method, RequestCallback requestCallback, ResponseExtractor<T> responseExtractor) Execute the HTTP method to the given URL, preparing the request with the RequestCallback, and reading the response with a ResponseExtractor.
<T> ResponseEntity<T>	getForEntity(String url, Class<T> responseType, Map<String,?> uriVariables) Retrieve a representation by doing a GET on the URI template.
<T> ResponseEntity<T>	getForEntity(String url, Class<T> responseType, Object... uriVariables) Retrieve an entity by doing a GET on the specified URL.
<T> ResponseEntity<T>	getForEntity(URI url, Class<T> responseType) Retrieve a representation by doing a GET on the URL .
<T> T	getForObject(String url, Class<T> responseType, Map<String,?> uriVariables) Retrieve a representation by doing a GET on the URI template.
<T> T	getForObject(String url, Class<T> responseType, Object... uriVariables) Retrieve a representation by doing a GET on the specified URL.
<T> T	getForObject(URI url, Class<T> responseType) Retrieve a representation by doing a GET on the URL .
HttpHeaders	headForHeaders(String url, Map<String,?> uriVariables) Retrieve all headers of the resource specified by the URI template.
HttpHeaders	headForHeaders(String url, Object... uriVariables) Retrieve all headers of the resource specified by the URI template.
HttpHeaders	headForHeaders(URI url) Retrieve all headers of the resource specified by the URL.
Set<HttpMethod>	optionsForAllow(String url, Map<String,?> uriVariables) Return the value of the Allow header for the given URI.
Set<HttpMethod>	optionsForAllow(String url, Object... uriVariables) Return the value of the Allow header for the given URI.
Set<HttpMethod>	optionsForAllow(URI url) Return the value of the Allow header for the given URL.
<T> ResponseEntity<T>	postForEntity(String url, Object request, Class<T> responseType, Map<String,?> uriVariables) Create a new resource by POSTing the given object to the URI template, and returns the response as HttpEntity.
<T> ResponseEntity<T>	postForEntity(String url, Object request, Class<T> responseType, Object... uriVariables) Create a new resource by POSTing the given object to the URI template, and returns the response as ResponseEntity.
<T> ResponseEntity<T>	postForEntity(URI url, Object request, Class<T> responseType) Create a new resource by POSTing the given object to the URL, and returns the response as ResponseEntity.
URI	postForLocation(String url, Object request, Map<String,?> uriVariables) Create a new resource by POSTing the given object to the URI template, and returns the value of the Location header.
URI	postForLocation(String url, Object request, Object... uriVariables) Create a new resource by POSTing the given object to the URI template, and returns the value of the Location header.
URI	postForLocation(URI url, Object request) Create a new resource by POSTing the given object to the URL, and returns the value of the Location header.
<T> T	postForObject(String url, Object request, Class<T> responseType, Map<String,?> uriVariables) Create a new resource by POSTing the given object to the URI template, and returns the representation found in the response.
<T> T	postForObject(String url, Object request, Class<T> responseType, Object... uriVariables) Create a new resource by POSTing the given object to the URI template, and returns the representation found in the response.
<T> T	postForObject(URI url, Object request, Class<T> responseType) Create a new resource by POSTing the given object to the URL, and returns the representation found in the response.
void	put(String url, Object request, Map<String,?> uriVariables) Creates a new resource by PUTting the given object to URI template.
void	put(String url, Object request, Object... uriVariables) Create or update a resource by PUTting the given object to the URI.
void	put(URI url, Object request) Creates a new resource by PUTting the given object to URL.

Method Detail

getForObject

<T> T getForObject(String url,
                   Class<T> responseType,
                   Object... uriVariables)
            throws RestClientException

Retrieve a representation by doing a GET on the specified URL. The response (if any) is converted and returned.

URI Template variables are expanded using the given URI variables, if any.

Parameters:

url - the URL

responseType - the type of the return value

uriVariables - the variables to expand the template

Returns:

the converted object

Throws:

RestClientException

getForObject

<T> T getForObject(String url,
                   Class<T> responseType,
                   Map<String,?> uriVariables)
            throws RestClientException

Retrieve a representation by doing a GET on the URI template. The response (if any) is converted and returned.

URI Template variables are expanded using the given map.

Parameters:

url - the URL

responseType - the type of the return value

uriVariables - the map containing variables for the URI template

Returns:

the converted object

Throws:

RestClientException

getForObject

<T> T getForObject(URI url,
                   Class<T> responseType)
            throws RestClientException

Retrieve a representation by doing a GET on the URL . The response (if any) is converted and returned.

Parameters:

url - the URL

responseType - the type of the return value

Returns:

the converted object

Throws:

RestClientException

getForEntity

<T> ResponseEntity<T> getForEntity(String url,
                                   Class<T> responseType,
                                   Object... uriVariables)
                            throws RestClientException

Retrieve an entity by doing a GET on the specified URL. The response is converted and stored in an ResponseEntity.

URI Template variables are expanded using the given URI variables, if any.

Parameters:

url - the URL

responseType - the type of the return value

uriVariables - the variables to expand the template

Returns:

the entity

Throws:

RestClientException

Since:

3.0.2

getForEntity

<T> ResponseEntity<T> getForEntity(String url,
                                   Class<T> responseType,
                                   Map<String,?> uriVariables)
                            throws RestClientException

Retrieve a representation by doing a GET on the URI template. The response is converted and stored in an ResponseEntity.

URI Template variables are expanded using the given map.

Parameters:

url - the URL

responseType - the type of the return value

uriVariables - the map containing variables for the URI template

Returns:

the converted object

Throws:

RestClientException

Since:

3.0.2

getForEntity

<T> ResponseEntity<T> getForEntity(URI url,
                                   Class<T> responseType)
                            throws RestClientException

Retrieve a representation by doing a GET on the URL . The response is converted and stored in an ResponseEntity.

Parameters:

url - the URL

responseType - the type of the return value

Returns:

the converted object

Throws:

RestClientException

Since:

3.0.2

headForHeaders

HttpHeaders headForHeaders(String url,
                           Object... uriVariables)
                    throws RestClientException

Retrieve all headers of the resource specified by the URI template.

URI Template variables are expanded using the given URI variables, if any.

Parameters:

url - the URL

uriVariables - the variables to expand the template

Returns:

all HTTP headers of that resource

Throws:

RestClientException

headForHeaders

HttpHeaders headForHeaders(String url,
                           Map<String,?> uriVariables)
                    throws RestClientException

Retrieve all headers of the resource specified by the URI template.

URI Template variables are expanded using the given map.

Parameters:

url - the URL

uriVariables - the map containing variables for the URI template

Returns:

all HTTP headers of that resource

Throws:

RestClientException

headForHeaders

HttpHeaders headForHeaders(URI url)
                    throws RestClientException

Retrieve all headers of the resource specified by the URL.

Parameters:

url - the URL

Returns:

all HTTP headers of that resource

Throws:

RestClientException

postForLocation

URI postForLocation(String url,
                    Object request,
                    Object... uriVariables)
             throws RestClientException

Create a new resource by POSTing the given object to the URI template, and returns the value of the Location header. This header typically indicates where the new resource is stored.

URI Template variables are expanded using the given URI variables, if any.

The request parameter can be a HttpEntity in order to add additional HTTP headers to the request.

Parameters:

url - the URL

request - the Object to be POSTed, may be null

uriVariables - the variables to expand the template

Returns:

the value for the Location header

Throws:

RestClientException

See Also:

HttpEntity

postForLocation

URI postForLocation(String url,
                    Object request,
                    Map<String,?> uriVariables)
             throws RestClientException

Create a new resource by POSTing the given object to the URI template, and returns the value of the Location header. This header typically indicates where the new resource is stored.

URI Template variables are expanded using the given map.

The request parameter can be a HttpEntity in order to add additional HTTP headers to the request.

Parameters:

url - the URL

request - the Object to be POSTed, may be null

uriVariables - the variables to expand the template

Returns:

the value for the Location header

Throws:

RestClientException

See Also:

HttpEntity

postForLocation

URI postForLocation(URI url,
                    Object request)
             throws RestClientException

Create a new resource by POSTing the given object to the URL, and returns the value of the Location header. This header typically indicates where the new resource is stored.

The request parameter can be a HttpEntity in order to add additional HTTP headers to the request.

Parameters:

url - the URL

request - the Object to be POSTed, may be null

Returns:

the value for the Location header

Throws:

RestClientException

See Also:

HttpEntity

postForObject

<T> T postForObject(String url,
                    Object request,
                    Class<T> responseType,
                    Object... uriVariables)
             throws RestClientException

Create a new resource by POSTing the given object to the URI template, and returns the representation found in the response.

URI Template variables are expanded using the given URI variables, if any.

The request parameter can be a HttpEntity in order to add additional HTTP headers to the request.

Parameters:

url - the URL

request - the Object to be POSTed, may be null

responseType - the type of the return value

uriVariables - the variables to expand the template

Returns:

the converted object

Throws:

RestClientException

See Also:

HttpEntity

postForObject

<T> T postForObject(String url,
                    Object request,
                    Class<T> responseType,
                    Map<String,?> uriVariables)
             throws RestClientException

Create a new resource by POSTing the given object to the URI template, and returns the representation found in the response.

URI Template variables are expanded using the given map.

The request parameter can be a HttpEntity in order to add additional HTTP headers to the request.

Parameters:

url - the URL

request - the Object to be POSTed, may be null

responseType - the type of the return value

uriVariables - the variables to expand the template

Returns:

the converted object

Throws:

RestClientException

See Also:

HttpEntity

postForObject

<T> T postForObject(URI url,
                    Object request,
                    Class<T> responseType)
             throws RestClientException

Create a new resource by POSTing the given object to the URL, and returns the representation found in the response.

The request parameter can be a HttpEntity in order to add additional HTTP headers to the request.

Parameters:

url - the URL

request - the Object to be POSTed, may be null

responseType - the type of the return value

Returns:

the converted object

Throws:

RestClientException

See Also:

HttpEntity

postForEntity

<T> ResponseEntity<T> postForEntity(String url,
                                    Object request,
                                    Class<T> responseType,
                                    Object... uriVariables)
                             throws RestClientException

Create a new resource by POSTing the given object to the URI template, and returns the response as ResponseEntity.

URI Template variables are expanded using the given URI variables, if any.

The request parameter can be a HttpEntity in order to add additional HTTP headers to the request.

Parameters:

url - the URL

request - the Object to be POSTed, may be null

uriVariables - the variables to expand the template

Returns:

the converted object

Throws:

RestClientException

Since:

3.0.2

See Also:

HttpEntity

postForEntity

<T> ResponseEntity<T> postForEntity(String url,
                                    Object request,
                                    Class<T> responseType,
                                    Map<String,?> uriVariables)
                             throws RestClientException

Create a new resource by POSTing the given object to the URI template, and returns the response as HttpEntity.

URI Template variables are expanded using the given map.

The request parameter can be a HttpEntity in order to add additional HTTP headers to the request.

Parameters:

url - the URL

request - the Object to be POSTed, may be null

uriVariables - the variables to expand the template

Returns:

the converted object

Throws:

RestClientException

Since:

3.0.2

See Also:

HttpEntity

postForEntity

<T> ResponseEntity<T> postForEntity(URI url,
                                    Object request,
                                    Class<T> responseType)
                             throws RestClientException

Create a new resource by POSTing the given object to the URL, and returns the response as ResponseEntity.

The request parameter can be a HttpEntity in order to add additional HTTP headers to the request.

Parameters:

url - the URL

request - the Object to be POSTed, may be null

Returns:

the converted object

Throws:

RestClientException

Since:

3.0.2

See Also:

HttpEntity

put

void put(String url,
         Object request,
         Object... uriVariables)
  throws RestClientException

Create or update a resource by PUTting the given object to the URI.

URI Template variables are expanded using the given URI variables, if any.

The request parameter can be a HttpEntity in order to add additional HTTP headers to the request.

Parameters:

url - the URL

request - the Object to be PUT, may be null

uriVariables - the variables to expand the template

Throws:

RestClientException

See Also:

HttpEntity

put

void put(String url,
         Object request,
         Map<String,?> uriVariables)
  throws RestClientException

Creates a new resource by PUTting the given object to URI template.

URI Template variables are expanded using the given map.

The request parameter can be a HttpEntity in order to add additional HTTP headers to the request.

Parameters:

url - the URL

request - the Object to be PUT, may be null

uriVariables - the variables to expand the template

Throws:

RestClientException

See Also:

HttpEntity

put

void put(URI url,
         Object request)
  throws RestClientException

Creates a new resource by PUTting the given object to URL.

The request parameter can be a HttpEntity in order to add additional HTTP headers to the request.

Parameters:

url - the URL

request - the Object to be PUT, may be null

Throws:

RestClientException

See Also:

HttpEntity

delete

void delete(String url,
            Object... uriVariables)
     throws RestClientException

Delete the resources at the specified URI.

URI Template variables are expanded using the given URI variables, if any.

Parameters:

url - the URL

uriVariables - the variables to expand in the template

Throws:

RestClientException

delete

void delete(String url,
            Map<String,?> uriVariables)
     throws RestClientException

Delete the resources at the specified URI.

URI Template variables are expanded using the given map.

Parameters:

url - the URL

uriVariables - the variables to expand the template

Throws:

RestClientException

delete

void delete(URI url)
     throws RestClientException

Delete the resources at the specified URL.

Parameters:

url - the URL

Throws:

RestClientException

optionsForAllow

Set<HttpMethod> optionsForAllow(String url,
                                Object... uriVariables)
                         throws RestClientException

Return the value of the Allow header for the given URI.

URI Template variables are expanded using the given URI variables, if any.

Parameters:

url - the URL

uriVariables - the variables to expand in the template

Returns:

the value of the allow header

Throws:

RestClientException

optionsForAllow

Set<HttpMethod> optionsForAllow(String url,
                                Map<String,?> uriVariables)
                         throws RestClientException

Return the value of the Allow header for the given URI.

URI Template variables are expanded using the given map.

Parameters:

url - the URL

uriVariables - the variables to expand in the template

Returns:

the value of the allow header

Throws:

RestClientException

optionsForAllow

Set<HttpMethod> optionsForAllow(URI url)
                         throws RestClientException

Return the value of the Allow header for the given URL.

Parameters:

url - the URL

Returns:

the value of the allow header

Throws:

RestClientException

exchange

<T> ResponseEntity<T> exchange(String url,
                               HttpMethod method,
                               HttpEntity<?> requestEntity,
                               Class<T> responseType,
                               Object... uriVariables)
                        throws RestClientException

Execute the HTTP method to the given URI template, writing the given request entity to the request, and returns the response as ResponseEntity.

URI Template variables are expanded using the given URI variables, if any.

Parameters:

url - the URL

method - the HTTP method (GET, POST, etc)

requestEntity - the entity (headers and/or body) to write to the request, may be null

responseType - the type of the return value

uriVariables - the variables to expand in the template

Returns:

the response as entity

Throws:

RestClientException

Since:

3.0.2

exchange

<T> ResponseEntity<T> exchange(String url,
                               HttpMethod method,
                               HttpEntity<?> requestEntity,
                               Class<T> responseType,
                               Map<String,?> uriVariables)
                        throws RestClientException

Execute the HTTP method to the given URI template, writing the given request entity to the request, and returns the response as ResponseEntity.

URI Template variables are expanded using the given URI variables, if any.

Parameters:

url - the URL

method - the HTTP method (GET, POST, etc)

requestEntity - the entity (headers and/or body) to write to the request, may be null

responseType - the type of the return value

uriVariables - the variables to expand in the template

Returns:

the response as entity

Throws:

RestClientException

Since:

3.0.2

exchange

<T> ResponseEntity<T> exchange(URI url,
                               HttpMethod method,
                               HttpEntity<?> requestEntity,
                               Class<T> responseType)
                        throws RestClientException

Execute the HTTP method to the given URI template, writing the given request entity to the request, and returns the response as ResponseEntity.

Parameters:

url - the URL

method - the HTTP method (GET, POST, etc)

requestEntity - the entity (headers and/or body) to write to the request, may be null

responseType - the type of the return value

Returns:

the response as entity

Throws:

RestClientException

Since:

3.0.2

exchange

<T> ResponseEntity<T> exchange(String url,
                               HttpMethod method,
                               HttpEntity<?> requestEntity,
                               ParameterizedTypeReference<T> responseType,
                               Object... uriVariables)
                        throws RestClientException

Execute the HTTP method to the given URI template, writing the given request entity to the request, and returns the response as ResponseEntity. The given ParameterizedTypeReference is used to pass generic type information:

 ParameterizedTypeReference<List<MyBean>> myBean = new ParameterizedTypeReference<List<MyBean>>() {};
 ResponseEntity<List<MyBean>> response = template.exchange("http://example.com",HttpMethod.GET, null, myBean);
 

Parameters:

url - the URL

method - the HTTP method (GET, POST, etc)

requestEntity - the entity (headers and/or body) to write to the request, may be null

responseType - the type of the return value

uriVariables - the variables to expand in the template

Returns:

the response as entity

Throws:

RestClientException

Since:

3.2.0

exchange

<T> ResponseEntity<T> exchange(String url,
                               HttpMethod method,
                               HttpEntity<?> requestEntity,
                               ParameterizedTypeReference<T> responseType,
                               Map<String,?> uriVariables)
                        throws RestClientException

Execute the HTTP method to the given URI template, writing the given request entity to the request, and returns the response as ResponseEntity. The given ParameterizedTypeReference is used to pass generic type information:

 ParameterizedTypeReference<List<MyBean>> myBean = new ParameterizedTypeReference<List<MyBean>>() {};
 ResponseEntity<List<MyBean>> response = template.exchange("http://example.com",HttpMethod.GET, null, myBean);
 

Parameters:

url - the URL

method - the HTTP method (GET, POST, etc)

requestEntity - the entity (headers and/or body) to write to the request, may be null

responseType - the type of the return value

uriVariables - the variables to expand in the template

Returns:

the response as entity

Throws:

RestClientException

Since:

3.2.0

exchange

<T> ResponseEntity<T> exchange(URI url,
                               HttpMethod method,
                               HttpEntity<?> requestEntity,
                               ParameterizedTypeReference<T> responseType)
                        throws RestClientException

Execute the HTTP method to the given URI template, writing the given request entity to the request, and returns the response as ResponseEntity. The given ParameterizedTypeReference is used to pass generic type information:

 ParameterizedTypeReference<List<MyBean>> myBean = new ParameterizedTypeReference<List<MyBean>>() {};
 ResponseEntity<List<MyBean>> response = template.exchange("http://example.com",HttpMethod.GET, null, myBean);
 

Parameters:

url - the URL

method - the HTTP method (GET, POST, etc)

requestEntity - the entity (headers and/or body) to write to the request, may be null

responseType - the type of the return value

Returns:

the response as entity

Throws:

RestClientException

Since:

3.2.0

execute

<T> T execute(String url,
              HttpMethod method,
              RequestCallback requestCallback,
              ResponseExtractor<T> responseExtractor,
              Object... uriVariables)
       throws RestClientException

Execute the HTTP method to the given URI template, preparing the request with the RequestCallback, and reading the response with a ResponseExtractor.

URI Template variables are expanded using the given URI variables, if any.

Parameters:

url - the URL

method - the HTTP method (GET, POST, etc)

requestCallback - object that prepares the request

responseExtractor - object that extracts the return value from the response

uriVariables - the variables to expand in the template

Returns:

an arbitrary object, as returned by the ResponseExtractor

Throws:

RestClientException

execute

<T> T execute(String url,
              HttpMethod method,
              RequestCallback requestCallback,
              ResponseExtractor<T> responseExtractor,
              Map<String,?> uriVariables)
       throws RestClientException

Execute the HTTP method to the given URI template, preparing the request with the RequestCallback, and reading the response with a ResponseExtractor.

URI Template variables are expanded using the given URI variables map.

Parameters:

url - the URL

method - the HTTP method (GET, POST, etc)

requestCallback - object that prepares the request

responseExtractor - object that extracts the return value from the response

uriVariables - the variables to expand in the template

Returns:

an arbitrary object, as returned by the ResponseExtractor

Throws:

RestClientException

execute

<T> T execute(URI url,
              HttpMethod method,
              RequestCallback requestCallback,
              ResponseExtractor<T> responseExtractor)
       throws RestClientException

Execute the HTTP method to the given URL, preparing the request with the RequestCallback, and reading the response with a ResponseExtractor.

Parameters:

url - the URL

method - the HTTP method (GET, POST, etc)

requestCallback - object that prepares the request

responseExtractor - object that extracts the return value from the response

Returns:

an arbitrary object, as returned by the ResponseExtractor

Throws:

RestClientException