KeyInSingle Class Reference

Pattern where a value::Single object, recognized as a key, is followed by any value::Value. More...

#include <keyvalue/pattern/KeyInSingle.h>

Inheritance diagram for KeyInSingle:

List of all members.

Public Member Functions
bool	parse (frontend::Queue &queue)
	Parses the beginning of a frontend::Queue.
std::pair< string, value::Value >	pop ()
	Gets and removes the next stored key-value pair.
bool	isEmpty () const
	Checks if the list of recognized key-value pairs is empty.
Private Attributes
bool	isEmpty_
string	key_
value::Value	value_

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Detailed Description

Pattern where a value::Single object, recognized as a key, is followed by any value::Value.

The content of value::Value object will be the value associated to the key. No further checks are performed.

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Member Function Documentation

bool parse

(

frontend::Queue &

queue

)

[virtual]

Parses the beginning of a frontend::Queue.

When a pattern is recognized, the value::Value objects which make it are removed from frontend::Queue and all corresponding key-value pairs are stored inside the this class for later queries.

Parameters:

queue

: frontend::Queue to be parsed.

Returns:

If the pattern is recognized, then this method returns true. Otherwise, it returns false.

Implements Pattern.

std::pair<string, value::Value> pop

(

)

[virtual]

Gets and removes the next stored key-value pair.

The debug version checks if there is any key-value pair be popped (by calling isEmpty()) and throw an exception when the check fails. Release version has undefined behavior when the list is empty.

Returns:

The key-value pair.

Exceptions:

LogicError

: (Debug build only) When the list is empty.

Implements Pattern.

bool isEmpty

(

)

const [virtual]

Checks if the list of recognized key-value pairs is empty.

Returns:

If the list is empty, this method returns true. Otherwise, it returns false.

Implements Pattern.