NAME

            

              
              
perfSONAR_PS::Datatypes::v2_0::max::Message::Metadata::Subject  - A base class, implements  'subject'  element from the perfSONAR_PS RelaxNG schema
            
          

DESCRIPTION

            

              
              
Object representation of the subject element.
Object fields are:
 Scalar:     metadataIdRef, 
 Scalar:     id, 
The constructor accepts only single parameter, it could be a hashref to parameters hash  or DOM with  'subject' element 
  
            
          

SYNOPSIS

            

              
              
       use perfSONAR_PS::Datatypes::v2_0::max::Message::Metadata::Subject;
               
my $el =  perfSONAR_PS::Datatypes::v2_0::max::Message::Metadata::Subject->new($DOM_Obj);
            
          

METHODS

new( )

            

              
              
creates   object, accepts DOM with  element tree or hashref to the list of
keyd parameters
   metadataIdRef   => undef, 
   id   => undef,
            
          

getDOM ($)

            

              
              
accept parent DOM
return subject object DOM, generated from object contents
            
          

querySQL ()

            

              
              
  depending on config  it will return some hash ref  to the initialized fields
for example querySQL ()
accepts one optional prameter - query hashref
will return:
{ ip_name_src =>  'hepnrc1.hep.net' },}
            
          

merge

            

              
              
merge with another subject ( append + overwrite if exists )
we can do it differently
method #1:
   convert to dom both objects and then get resulted object from combined dom 
method #2 default:
   through the introspection of the object
            
          

buildIdMap()

            

              
              
if any of subelements has id then get a map of it in form of
hashref to { element}{id} = index in array and store in the idmap field
            
          

buildrefIdMap ()

            

              
              
if any of subelements has  metadataIdRef  then get a map of it in form of
hashref to { element}{ metadataIdRef } = index in array and store in the idmap field
            
          

asString()

            

              
              
shortcut to get DOM and convert into the XML string
returns XML string  representation of the  subject object
            
          

registerNamespaces ()

            

              
              
will parse all subelements and register all namepspaces within the subject namespace
            
          

fromDOM ($)

            

              
              
accepts parent XML DOM   element   tree as parameter 
returns subject  object
            
          

AUTHORS

            

              
              
Maxim Grigoriev (FNAL)  2007, maxim@fnal.gov