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Summary

Bio::DB::GFF::Adaptor::dbi::oracleace -- Unholy union between oracle GFF database and acedb database

Package variables

Included modules

Inherit

Bio::DB::GFF::Adaptor::ace Bio::DB::GFF::Adaptor::dbi::oracle

Synopsis

Pending
See Bio::DB::GFF and Bio::DB::GFF::Adaptor::dbi::oracle

Description

No description!

Methods

Methods description

None available.

Methods code

sub new {

  my $class = shift;
  my $self  = $class->SUPER::new(@_);
  my ($dna_db,$acedb) = rearrange([[qw(DNADB DNA FASTA FASTA_DIR)],'ACEDB'],@_);
  if ($dna_db) {
    if (!ref($dna_db)) {
      require Bio::DB::Fasta;
      my $fasta_dir = $dna_db;
      $dna_db = Bio::DB::Fasta->new($fasta_dir);
      $dna_db or $class->throw("new(): Failed to create new Bio::DB::Fasta from files in $fasta_dir");
    } else {
      $dna_db->isa('Bio::DB::Fasta') or $class->throw("new(): $dna_db is not a Bio::DB::Fasta object");
    }
    $self->dna_db($dna_db);
  }

  if ($acedb) {
    $acedb->isa('Ace') or $class->throw("$acedb is not an acedb accessor object");
    $self->acedb($acedb);
  }
  $self;

}

sub make_object {

  my $self = shift;
  my ($class,$name,$start,$stop) = @_;

  if (my $db = $self->acedb) {

    # for Notes we just return a text, no database associated
    return $class->new(Text=>$name) if $class eq 'Note';

    # for homols, we create the indicated Protein or Sequence object
    # then generate a bogus Homology object (for future compatability??)
    if ($start ne '') {
      require Ace::Sequence::Homol;
      return Ace::Sequence::Homol->new_homol($class,$name,$db,$start,$stop);
    }

    # General case:
    my $obj = $db->class->new($class=>$name,$self->acedb);

    return $obj if defined $obj;

    # Last resort, return a Text
    return $class->new(Text=>$name);
  }

  return $self->SUPER::make_object($class,$name,$start,$stop);

}

sub get_dna {

  my $self = shift;
  my ($ref,$start,$stop,$class) = @_;
  my $dna_db = $self->dna_db or return $self->SUPER::get_dna(@_);
  return $dna_db->seq($ref,$start,$stop,$class);

}

General documentation

Bio::DB::GFF, bioperl

Lincoln Stein <lstein@cshl.org>.
Copyright (c) 2002 Cold Spring Harbor Laboratory.
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.

 Title   : freshen
 Usage   : $flag = Bio::DB::GFF->freshen_ace;
 Function: Refresh internal acedb handle
 Returns : flag if correctly freshened
 Args    : none
 Status  : Public

ACeDB has an annoying way of timing out, leaving dangling database
handles. This method will invoke the ACeDB reopen() method, which
causes dangling handles to be refreshed. It has no effect if you are
not using ACeDB to create ACeDB objects.