/[cvs]/nfo/perl/libs/Data/Storage/Handler/Tangram.pm
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revision 1.13 by joko, Thu Dec 5 07:59:04 2002 UTC revision 1.15 by joko, Thu Dec 5 13:55:21 2002 UTC
# Line 3  Line 3 
3  #  $Id$  #  $Id$
4  #  #
5  #  $Log$  #  $Log$
6    #  Revision 1.15  2002/12/05 13:55:21  joko
7    #  + now utilizing 'object2hash' instead of 'var_deref'
8    #  + played around with having fresh-objects - no progress....
9    #
10    #  Revision 1.14  2002/12/05 09:40:30  jonen
11    #  + added option->{destroy} at getObject for unloading all instance
12    #
13  #  Revision 1.13  2002/12/05 07:59:04  joko  #  Revision 1.13  2002/12/05 07:59:04  joko
14  #  + now using Tie::SecureHash as a base for the COREHANDLE  #  + now using Tie::SecureHash as a base for the COREHANDLE
15  #  + former public COREHANDLE becomes private _COREHANDLE now  #  + former public COREHANDLE becomes private _COREHANDLE now
# Line 75  use Data::Dumper; Line 82  use Data::Dumper;
82  use libp qw( getNewPerlObjectByPkgName );  use libp qw( getNewPerlObjectByPkgName );
83  use Data::Storage::Result::Tangram;  use Data::Storage::Result::Tangram;
84  use Data::Compare::Struct qw( isEmpty );  use Data::Compare::Struct qw( isEmpty );
85  use Data::Transform::Deep qw( var_deref );  use Data::Transform::Deep qw( object2hash );
86  use Data::Transform::Encode qw( var2utf8 );  use Data::Transform::Encode qw( var2utf8 );
87    
88    
# Line 489  sub createDb { Line 496  sub createDb {
496  sub getObject {  sub getObject {
497    my $self = shift;    my $self = shift;
498    my $oid = shift;    my $oid = shift;
499      my $options = shift;
500      # TODO: create a deep_unload method
501      # unload($oid) will only unload object, not deep object hashes
502      $self->{_COREHANDLE}->unload() if($options->{destroy});
503    # TODO: review this    # TODO: review this
504    #if (!$self->{COREHANDLE}) { return; }    #if (!$self->{COREHANDLE}) { return; }
505    return $self->{_COREHANDLE}->load($oid);    return $self->{_COREHANDLE}->load($oid);
# Line 498  sub getObjectAsHash { Line 509  sub getObjectAsHash {
509    my $self = shift;    my $self = shift;
510    my $oid = shift;    my $oid = shift;
511    my $options = shift;    my $options = shift;
512    my $obj = $self->getObject($oid);    my $obj = $self->getObject($oid, $options);
513    my $deref = var_deref($obj);    
514    var2utf8($deref) if ($options->{utf8});    # build options (a callback to unload autovivified objects) for 'expand'
515    undef($obj) if($options->{destroy});    # TODO: use $logger to write to debug here!
516    return $deref;    my $cb; # = sub {};
517    =pod
518      if ($options->{destroy}) {
519        $options->{cb}->{destroy} = sub {
520          print "================ DESTROY", "\n";
521          my $object = shift;
522          #print Dumper($object);
523          $self->{_COREHANDLE}->unload($object);
524          #undef($object);
525        };
526      }
527    =cut
528    
529      my $hash = object2hash($obj, $options);
530      #$options->{cb}->{destroy}->($obj);
531      #$self->{_COREHANDLE}->unload($obj);
532      
533      # convert values in hash to utf8 to be ready for (e.g.) encapsulation in XML
534      # now done in object2hash
535      #var2utf8($hash) if ($options->{utf8});
536      
537      # old (wrong) attempts to get rid of used instances, if requested
538        #$obj->clear_refs;
539        #$self->{COREHANDLE}->unload($obj) if($options->{destroy});
540        #$obj->DESTROY;
541        #undef($obj) if($options->{destroy});
542      
543      return $hash;
544  }  }
545    
546  sub getSchema {  sub getSchema {

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