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BESDefineCommand Class Reference

#include <BESDefineCommand.h>

Inheritance diagram for BESDefineCommand:

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Collaboration diagram for BESDefineCommand:
[legend]
List of all members.

Public Member Functions

 BESDefineCommand (const string &cmd)
virtual ~BESDefineCommand ()
virtual string parse_options (BESTokenizer &tokens, BESDataHandlerInterface &dhi)
virtual BESResponseHandlerparse_request (BESTokenizer &tokens, BESDataHandlerInterface &dhi)
 parses the request to build a definition that can be used in other requests, such as get commands.
virtual void dump (ostream &strm) const
 dumps information about this object

Static Public Member Functions

static void add_command (const string &cmd_str, BESCommand *cmd)
static bool del_command (const string &cmd_str)
static BESCommandfind_command (const string &cmd_str)

Static Public Attributes

static BESCommandTermCommand = new BESTermCommand( "term" )

Protected Attributes

string _cmd

Constructor & Destructor Documentation

BESDefineCommand::BESDefineCommand const string &  cmd  )  [inline]
 

virtual BESDefineCommand::~BESDefineCommand  )  [inline, virtual]
 


Member Function Documentation

void BESCommand::add_command const string &  cmd_str,
BESCommand cmd
[static, inherited]
 

bool BESCommand::del_command const string &  cmd_str  )  [static, inherited]
 

void BESDefineCommand::dump ostream &  strm  )  const [virtual]
 

dumps information about this object

Displays the pointer value of this instance

Parameters:
strm C++ i/o stream to dump the information to

Reimplemented from BESCommand.

BESCommand * BESCommand::find_command const string &  cmd_str  )  [static, inherited]
 

string BESDefineCommand::parse_options BESTokenizer tokens,
BESDataHandlerInterface dhi
[virtual]
 

Reimplemented from BESCommand.

BESResponseHandler * BESDefineCommand::parse_request BESTokenizer tokenizer,
BESDataHandlerInterface dhi
[virtual]
 

parses the request to build a definition that can be used in other requests, such as get commands.

A request looks like:

define <def_name> as <container_list>
  [where <container_x>.constraint="<constraint>"]
  [,<container_x>.attributes="<attrs>"]
  [aggregate by "&lt;aggregation_command&gt;"];

where container_list is a list of containers representing points of data, such as a file. For each container in the container_list the user can specify a constraint and a list of attributes. You need not specify a constraint for a given container or a list of attributes. If just specifying a constraint then leave out the attributes. If just specifying a list of attributes then leave out the constraint. For example:

define d1 as container_1,container_2
  where container_1.constraint="constraint1"
  ,container_2.constraint="constraint2"
  ,container_2.attributes="attr1,attr2";

Parameters:
tokenizer holds on to the list of tokens to be parsed
dhi structure that holds request and response information
Exceptions:
BESParserException if this method is called, as the request string should have already been parsed.
See also:
BESTokenizer

_BESDataHandlerInterface

Implements BESCommand.


Member Data Documentation

string BESCommand::_cmd [protected, inherited]
 

BESCommand * BESCommand::TermCommand = new BESTermCommand( "term" ) [static, inherited]
 


The documentation for this class was generated from the following files:
Generated on Thu May 3 23:10:59 2007 for OPeNDAP Back End Server (BES) by  doxygen 1.4.4