Ice::ImplicitContext Class Reference

An interface to associate implict contexts with communicators. More...

#include <Ice/Ice.h>

Public Member Functions
virtual bool	containsKey (const ::std::string &key) const =0
	Check if this key has an associated value in the underlying context.
virtual::std::string	get (const ::std::string &key) const =0
	Get the value associated with the given key in the underlying context.
virtual::Ice::Context	getContext () const =0
	Get a copy of the underlying context.
virtual::std::string	put (const ::std::string &key, const ::std::string &value)=0
	Create or update a key/value entry in the underlying context.
virtual::std::string	remove (const ::std::string &key)=0
	Remove the entry for the given key in the underlying context.
virtual void	setContext (const Context &newContext)=0
	Set the underlying context.
virtual	~ImplicitContext ()

Detailed Description

An interface to associate implict contexts with communicators.

When you make a remote invocation without an explicit context parameter, Ice uses the per-proxy context (if any) combined with the ImplicitContext associated with the communicator.

Ice provides several implementations of ImplicitContext. The implementation used depends on the value of the Ice.ImplicitContext property.

None (default)

No implicit context at all.

PerThread

The implementation maintains a context per thread.

Shared

The implementation maintains a single context shared by all threads.

ImplicitContext also provides a number of operations to create, update or retrieve an entry in the underlying context without first retrieving a copy of the entire context. These operations correspond to a subset of the java.util.Map methods, with java.lang.Object replaced by string and null replaced by the empty-string.

Constructor & Destructor Documentation

~ImplicitContext()

virtual Ice::ImplicitContext::~ImplicitContext ( )

virtual

Member Function Documentation

containsKey()

virtual bool Ice::ImplicitContext::containsKey ( const ::std::string & key ) const

pure virtual

Check if this key has an associated value in the underlying context.

Parameters

key

The key.

Returns

True if the key has an associated value, False otherwise.

get()

virtual::std::string Ice::ImplicitContext::get ( const ::std::string & key ) const

pure virtual

Get the value associated with the given key in the underlying context.

Returns an empty string if no value is associated with the key. containsKey allows you to distinguish between an empty-string value and no value at all.

Parameters

key

The key.

Returns

The value associated with the key.

getContext()

virtual::Ice::Context Ice::ImplicitContext::getContext ( ) const

pure virtual

Get a copy of the underlying context.

Returns

A copy of the underlying context.

put()

virtual::std::string Ice::ImplicitContext::put ( const ::std::string & key, const ::std::string & value )

pure virtual

Create or update a key/value entry in the underlying context.

Parameters

key	The key.
value	The value.

Returns

The previous value associated with the key, if any.

remove()

virtual::std::string Ice::ImplicitContext::remove ( const ::std::string & key )

pure virtual

Remove the entry for the given key in the underlying context.

Parameters

key

The key.

Returns

The value associated with the key, if any.

setContext()

virtual void Ice::ImplicitContext::setContext ( const Context & newContext )

pure virtual

Set the underlying context.

Parameters

newContext

The new context.

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The documentation for this class was generated from the following file:

• generated/cpp11/x64/Release/Ice/ImplicitContext.h