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// -*- C++ -*-
//==========================================================================
/**
* @file Name_Space.h
*
* @author Prashant Jain <pjain@cse.wustl.edu>
*/
//==========================================================================
#ifndef ACE_NAME_SPACE_H
#define ACE_NAME_SPACE_H
#include /**/ "ace/pre.h"
#include /**/ "ace/ACE_export.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/SString.h"
#include "ace/Unbounded_Set.h"
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
typedef ACE_Unbounded_Set<ACE_NS_WString> ACE_WSTRING_SET;
/**
* @class ACE_Name_Binding
*
* @brief Maintains a mapping from name to value and type.
*/
class ACE_Export ACE_Name_Binding
{
public:
/// Main constructor that initializes all the fields.
ACE_Name_Binding (const ACE_NS_WString &n,
const ACE_NS_WString &v,
const char *t);
/// Default constructor.
ACE_Name_Binding ();
/// Copy constructor.
ACE_Name_Binding (const ACE_Name_Binding &);
/// Assignment operator.
const ACE_Name_Binding& operator= (const ACE_Name_Binding &);
/// Destructor.
~ACE_Name_Binding ();
/// Test for equality.
bool operator == (const ACE_Name_Binding &s) const;
/// Name of the binding.
ACE_NS_WString name_;
/// Value of the binding.
ACE_NS_WString value_;
/// Type of the binding.
char *type_;
};
typedef ACE_Unbounded_Set<ACE_Name_Binding> ACE_BINDING_SET;
typedef ACE_Unbounded_Set_Iterator<ACE_Name_Binding> ACE_BINDING_ITERATOR;
typedef ACE_Unbounded_Set<ACE_NS_WString> ACE_PWSTRING_SET;
typedef ACE_Unbounded_Set_Iterator<ACE_NS_WString> ACE_PWSTRING_ITERATOR;
/**
* @class ACE_Name_Space
*
* @brief Abstract base class that provides an abstract interface to
* the database without exposing any implementation details.
*
* Manages a Naming Service Name Space. Provides the basic
* methods -- bind, unbind, rebind, find, and listnames.
*/
class ACE_Export ACE_Name_Space
{
public:
/// virtual destructor to ensure destructors of subclasses get
/// called.
virtual ~ACE_Name_Space ();
/// Bind a new name to a naming context (Wide character strings).
virtual int bind (const ACE_NS_WString &name_in,
const ACE_NS_WString &value_in,
const char *type_in = "") = 0;
/**
* Overwrite the value or type of an existing name in a
* ACE_Name_Space or bind a new name to the context, if it didn't
* exist yet. (Wide character strings interface).
*/
virtual int rebind (const ACE_NS_WString &name_in,
const ACE_NS_WString &value_in,
const char *type_in = "") = 0;
/// Delete a name from a ACE_Name_Space (Wide character strings
/// Interface).
virtual int unbind (const ACE_NS_WString &name_in) = 0;
/// Get value and type of a given name binding (Wide chars). The
/// caller is responsible for deleting both <value_out> and <type_out>!
virtual int resolve (const ACE_NS_WString &name_in,
ACE_NS_WString &value_out,
char *&type_out) = 0;
/// Get a set of names matching a specified pattern (wchars). Matching
/// means the names must begin with the pattern string.
virtual int list_names (ACE_WSTRING_SET &set_out,
const ACE_NS_WString &pattern_in) = 0;
/// Get a set of values matching a specified pattern (wchars). Matching
/// means the values must begin with the pattern string.
virtual int list_values (ACE_WSTRING_SET &set_out,
const ACE_NS_WString &pattern_in) = 0;
/// Get a set of types matching a specified pattern (wchars). Matching
/// means the types must begin with the pattern string.
virtual int list_types (ACE_WSTRING_SET &set_out,
const ACE_NS_WString &pattern_in) = 0;
/**
* Get a set of names matching a specified pattern (wchars). Matching
* means the names must begin with the pattern string. Returns the
* complete binding associated each pattern match.
*/
virtual int list_name_entries (ACE_BINDING_SET &set,
const ACE_NS_WString &pattern) = 0;
/**
* Get a set of values matching a specified pattern (wchars). Matching
* means the values must begin with the pattern string. Returns the
* complete binding associated each pattern match.
*/
virtual int list_value_entries (ACE_BINDING_SET &set,
const ACE_NS_WString &pattern) = 0;
/**
* Get a set of types matching a specified pattern (wchars). Matching
* means the types must begin with the pattern string. Returns the
* complete binding associated each pattern match.
*/
virtual int list_type_entries (ACE_BINDING_SET &set,
const ACE_NS_WString &pattern) = 0;
/// Dump the state of the object
virtual void dump () const = 0;
};
ACE_END_VERSIONED_NAMESPACE_DECL
#include /**/ "ace/post.h"
#endif /* ACE_NAME_SPACE_H */
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