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NAME

       kdb - This is the main namespace for the C++ binding and libraries.

SYNOPSIS

   Namespaces
        tools
           This namespace is for the libtool library.

   Data Structures
       struct Command
           Used by contexts for callbacks (to run code using a mutex).
       class Context
           Provides a context for configuration.
       class ContextPolicyIs
           Needed by the user to set one of the policies.
       class Coordinator
           Thread safe coordination of ThreadContext per Threads.
       class DefaultGetPolicy
           Implements lookup with spec.
       class DefaultSetPolicy
           Implements creating user/ key when key is not found.
       class Discriminator
           This technique with the PolicySelector and Discriminator is taken from the book 'C++
           Templates - The Complete Guide' by David Vandevoorde and Nicolai M.
       class GetPolicyIs
           Needed by the user to set one of the policies.
       class KDB
           Constructs a class KDB.
       class Key
           Key is an essential class that encapsulates key name , value  and metainfo .
       class KeySet
           A keyset holds together a set of keys.
       class KeySetIterator
           For C++ forward Iteration over KeySets.
       class KeySetReverseIterator
           For C++ reverse Iteration over KeySets.
       class Layer
           Base class for all layers.
       class LockPolicyIs
           Needed by the user to set one of the policies.
       class NameIterator
           For C++ forward Iteration over Names.
       class NameReverseIterator
           For C++ reverse Iteration over Names.
       class none_t
           This type is being used as bottom type that always fails.
       class ObserverPolicyIs
           Needed by the user to set one of the policies.
       struct PerContext
           A data structure that is stored by context inside the Coordinator.
       class SetPolicyIs
           Needed by the user to set one of the policies.
       class ThreadSubject
           Subject from Observer pattern for ThreadContext.
       struct Va
           Needed to avoid constructor ambiguity.
       class ValueObserver
           Base class for values to be observed.
       class WritePolicyIs
           Needed by the user to set one of the policies.

   Typedefs
       typedef std::unordered_map< std::string, LayerAction > LayerMap
           A vector of layers.

   Functions
       bool operator< (ValueObserver const &lhs, ValueObserver const &rhs)
           Needed to put a ValueObserver in a map.
       std::ostream & operator<< (std::ostream &os, kdb::Key const &k)
           Stream the name of a key.
       std::istream & operator>> (std::istream &is, kdb::Key &k)
           Reads a line with a keys name.
       std::ostream & operator<< (std::ostream &os, kdb::KeySet const &cks)
           Outputs line per line the keynames.
       std::istream & operator>> (std::istream &is, kdb::KeySet &ks)
           Reads line per line key names and appends those keys to ks.

Detailed Description

       This is the main namespace for the C++ binding and libraries.

       Classes or Functions directly below this namespace are header-only. Sub namespaces are
       intended for libraries and you need to link the library if you want to use them.

       • See also:
           kdb::tools

Function Documentation

   bool kdb::operator< (ValueObserver const & lhs, ValueObserver const & rhs)
       Needed to put a ValueObserver in a map.

       Returns:
           Comparision result

   std::ostream& kdb::operator<< (std::ostream & os, kdb::Key const & k) [inline]
       Stream the name of a key. If you also want to stream the value, use the plugin framework.

       Parameters:
           os the stream to write to
           k the key which name should be streamed

       Returns:
           the stream

   std::ostream& kdb::operator<< (std::ostream & os, kdb::KeySet const & cks) [inline]
       Outputs line per line the keynames. To output values you should use the plugin framework.

       Parameters:
           os the stream to write to
           cks the keyset which should be streamed

       Use unsetf(std::ios_base::skipws) or use noskipws iomanip on the stream if you want a null
       terminated sequence of key names.

       Use setf(std::ios_base::unitbuf) on the stream if you want to flush the buffer after each
       key.

       Returns:
           the stream

   std::istream& kdb::operator>> (std::istream & is, kdb::Key & k) [inline]
       Reads a line with a keys name.

       Parameters:
           is the stream to read from
           k the key whose name will be set

       Use unsetf(std::ios_base::skipws) on the stream if the keyname is terminated with an null
       character and not a newline.

       Returns:
           the stream

   std::istream& kdb::operator>> (std::istream & is, kdb::KeySet & ks) [inline]
       Reads line per line key names and appends those keys to ks. To input values you need to
       use the plugin framework.

       Parameters:
           is the stream to read from
           ks the keyset to append to

       Returns:
           the stream

Author

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