Package org.apache.commons.httpclient.methods

Class ExpectContinueMethod

java.lang.Object

org.apache.commons.httpclient.HttpMethodBase

org.apache.commons.httpclient.methods.ExpectContinueMethod

All Implemented Interfaces:

HttpMethod

Direct Known Subclasses:

EntityEnclosingMethod, MultipartPostMethod

public abstract class ExpectContinueMethod
extends HttpMethodBase

This abstract class serves as a foundation for all HTTP methods that support 'Expect: 100-continue' handshake.

The purpose of the 100 (Continue) status (refer to section 10.1.1 of the RFC 2616 for more details) is to allow a client that is sending a request message with a request body to determine if the origin server is willing to accept the request (based on the request headers) before the client sends the request body. In some cases, it might either be inappropriate or highly inefficient for the client to send the body if the server will reject the message without looking at the body.

'Expect: 100-continue' handshake should be used with caution, as it may cause problems with HTTP servers and proxies that do not support HTTP/1.1 protocol.

Since:

2.0beta1

Constructor Summary

Constructors

Constructor	Description
ExpectContinueMethod()	No-arg constructor.
ExpectContinueMethod(java.lang.String uri)	Constructor specifying a URI.

Method Summary

Modifier and Type	Method	Description
boolean	getUseExpectHeader()	Deprecated. Use HttpMethodParams
void	setUseExpectHeader(boolean value)	Deprecated. Use HttpMethodParams

Methods inherited from class org.apache.commons.httpclient.HttpMethodBase

abort, addRequestHeader, addRequestHeader, addResponseFooter, execute, getAuthenticationRealm, getDoAuthentication, getEffectiveVersion, getFollowRedirects, getHostAuthState, getHostConfiguration, getMethodRetryHandler, getName, getParams, getPath, getProxyAuthenticationRealm, getProxyAuthState, getQueryString, getRecoverableExceptionCount, getRequestCharSet, getRequestHeader, getRequestHeaders, getRequestHeaders, getResponseBody, getResponseBody, getResponseBodyAsStream, getResponseBodyAsString, getResponseBodyAsString, getResponseCharSet, getResponseContentLength, getResponseFooter, getResponseFooters, getResponseHeader, getResponseHeaders, getResponseHeaders, getStatusCode, getStatusLine, getStatusText, getURI, hasBeenUsed, isAborted, isHttp11, isRequestSent, isStrictMode, recycle, releaseConnection, removeRequestHeader, removeRequestHeader, setDoAuthentication, setFollowRedirects, setHostConfiguration, setHttp11, setMethodRetryHandler, setParams, setPath, setQueryString, setQueryString, setRequestHeader, setRequestHeader, setStrictMode, setURI, validate

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ExpectContinueMethod

public ExpectContinueMethod()

No-arg constructor.

Since:

2.0

ExpectContinueMethod

public ExpectContinueMethod(java.lang.String uri)

Constructor specifying a URI.

Parameters:

uri - either an absolute or relative URI

Since:

2.0

Method Detail

getUseExpectHeader

public boolean getUseExpectHeader()

Deprecated.

Use HttpMethodParams

Returns true if the 'Expect: 100-Continue' handshake is activated. The purpose of the 'Expect: 100-Continue' handshake to allow a client that is sending a request message with a request body to determine if the origin server is willing to accept the request (based on the request headers) before the client sends the request body.

Returns:

true if 'Expect: 100-Continue' handshake is to be used, false otherwise.

Since:

2.0beta1

See Also:

HttpMethodBase.getParams(), HttpMethodParams, HttpMethodParams.USE_EXPECT_CONTINUE

setUseExpectHeader

public void setUseExpectHeader(boolean value)

Deprecated.

Use HttpMethodParams

Activates 'Expect: 100-Continue' handshake. The purpose of the 'Expect: 100-Continue' handshake to allow a client that is sending a request message with a request body to determine if the origin server is willing to accept the request (based on the request headers) before the client sends the request body.

The use of the 'Expect: 100-continue' handshake can result in noticable peformance improvement for entity enclosing requests (such as POST and PUT) that require the target server's authentication.

'Expect: 100-continue' handshake should be used with caution, as it may cause problems with HTTP servers and proxies that do not support HTTP/1.1 protocol.

Parameters:

value - boolean value

Since:

2.0beta1

See Also:

HttpMethodBase.getParams(), HttpMethodParams, HttpMethodParams.USE_EXPECT_CONTINUE