use Bio::EnsEMBL::Registry;

  Bio::EnsEMBL::Registry->load_registry_from_db(
    -host => 'ensembldb.ensembl.org',
    -user => 'anonymous'
  );

  $pfa = Bio::EnsEMBL::Registry->get_adaptor( "human", "core",
    "proteinfeature" );

  my @prot_feats = @{ $pfa->fetch_all_by_translation_id(1231) };

  my $prot_feat = $pfa->fetch_by_dbID(523);

  my $self = shift;
  my $feature = shift;
  my $translation_id = shift;
  deprecate("Use fetch_all_by_translation_id instead.");

  print STDERR "translation_id = $translation_id feature = $feature\n";

  my $features = $self->fetch_all_by_translation_id($translation_id);

  my @out;
  foreach my $f (@$features) {
    my $logic_name = lc($f->analysis->logic_name());
    print STDERR "LOGIC_NAME = $logic_name | FEATURE = $feature\n";
    push(@out, $f) if($logic_name eq lc($feature));
  }

  return\@ out;

  my($self,$translation_id) = @_;

  if(!$translation_id) {
    throw("translation_id argument is required\n");
  }

  my @features;
  my $analysis_adaptor = $self->db()->get_AnalysisAdaptor();
    
  my $sth = $self->prepare
    ("SELECT protein_feature_id, p.seq_start, p.seq_end, p.analysis_id, " .
     "       p.score, p.perc_ident, p.evalue, p.hit_start, p.hit_end, " .
     "       p.hit_name, x.display_label, i.interpro_ac " .
     "FROM   protein_feature p " .
     "LEFT JOIN interpro AS i ON p.hit_name = i.id " .
     "LEFT JOIN xref AS x ON x.dbprimary_acc = i.interpro_ac " .
     "WHERE p.translation_id = ?");

  $sth->bind_param(1,$translation_id,SQL_INTEGER);
  $sth->execute();

  while( my $row = $sth->fetchrow_arrayref) {
    my ($dbID, $start, $end, $analysisid, $score, $perc_id, $evalue, $hstart,
        $hend,$hid,$desc, $interpro_ac) = @$row;

    my $analysis = $analysis_adaptor->fetch_by_dbID($analysisid);

    if(!$analysis) {
      warning("Analysis with dbID=$analysisid does not exist\n" .
	      "but is referenced by ProteinFeature $dbID");
    }

    my $feat = Bio::EnsEMBL::ProteinFeature->new
      (-DBID        => $dbID,
       -ADAPTOR     => $self,
       -SEQNAME     => $translation_id,
       -START       => $start,
       -END         => $end,
       -ANALYSIS    => $analysis,
       -PERCENT_ID  => $perc_id,
       -P_VALUE     => $evalue,
       -SCORE       => $score, 
       -HSTART      => $hstart,
       -HEND        => $hend,
       -HSEQNAME    => $hid,
       -IDESC       => $desc,
       -INTERPRO_AC => $interpro_ac);

    push(@features,$feat);
  }

  $sth->finish();

  return\@ features;

  my ($self,$protfeat_id) = @_;
    
  my $sth = $self->prepare(
	      "SELECT p.seq_start, p.seq_end, p.analysis_id, " .
        "       p.score, p.perc_ident, p.evalue, " .
        "       p.hit_start, p.hit_end, p.hit_name, " .
        "       x.display_label, i.interpro_ac " .
        "FROM   protein_feature p " .
        "LEFT JOIN interpro AS i ON p.hit_name = i.id " .
        "LEFT JOIN xref AS x ON x.dbprimary_acc = i.interpro_ac " .
        "WHERE  p.protein_feature_id = ?");
  
  $sth->bind_param(1,$protfeat_id,SQL_INTEGER);
  my $res = $sth->execute();
   
  if($sth->rows == 0) {
    $sth->finish();
    return undef;
  }

  my ($start, $end, $analysis_id, $score, $perc_ident, $pvalue, $hstart, 
      $hend, $hseqname, $idesc, $interpro_ac) = $sth->fetchrow_array();

  $sth->finish();

  my $analysis = $self->db->get_AnalysisAdaptor->fetch_by_dbID($analysis_id);

  return Bio::EnsEMBL::ProteinFeature->new
    (-ADAPTOR    => $self,
     -DBID        => $protfeat_id,
     -START       => $start,
     -END         => $end,
     -HSTART      => $hstart,
     -HEND        => $hend,
     -HSEQNAME    => $hseqname,
     -ANALYSIS    => $analysis,
     -SCORE       => $score,
     -P_VALUE     => $pvalue,
     -PERCENT_ID  => $perc_ident,
     -IDESC       => $idesc,
     -INTERPRO_AC => $interpro_ac);

  deprecate("Use fetch_all_by_translation_id instead.");
  fetch_all_by_translation_id(@_);

    
  my ($self, $features) = @_;

  my @feats = @$features;
  throw("Must call save with features") if( scalar(@feats) == 0 );

#  my @tabs = $self->_tables;
#  my ($tablename) = @{$tabs[0]};
  my $tablename = 'protein_feature';

  my $db = $self->db();
  my $analysis_adaptor = $db->get_AnalysisAdaptor();

  my $sql = qq{INSERT INTO $tablename (translation_id, seq_start, seq_end, hit_start, hit_end, hit_name, analysis_id, score, evalue, perc_ident, external_data) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)};

  my $sth = $self->prepare($sql);
     
  foreach my $feat ( @feats ) {
     if( !ref $feat || !$feat->isa("Bio::EnsEMBL::ProteinFeature") ) {
	 throw("feature must be a Bio::EnsEMBL::ProteinFeature,". " not a [".ref($feat)."].");
     }

     if($feat->is_stored($db)) {
	 warning("ProteinFeature [".$feat->dbID."] is already stored" .
		 " in this database.");
	 next;
     }

     my $hstart = defined $feat->hstart ? $feat->hstart : $feat->start ;
     my $hend   = defined $feat->hend ? $feat->hend : $feat->end;

     if(!defined($feat->analysis)) {
	 throw("An analysis must be attached to the features to be stored.");
     }

     #store the analysis if it has not been stored yet
     if(!$feat->analysis->is_stored($db)) {
	 $analysis_adaptor->store($feat->analysis());
     }

     my $original = $feat;
     my $extra_data = $feat->extra_data ? $self->dump_data($feat->extra_data) : '';

     $sth->bind_param(1,$feat->translation_id,SQL_INTEGER);
     $sth->bind_param(2,$feat->start,SQL_INTEGER);
     $sth->bind_param(3,$feat->end,SQL_INTEGER);
     $sth->bind_param(4,$hstart,SQL_INTEGER);
     $sth->bind_param(5,$hend,SQL_INTEGER);
     $sth->bind_param(6,$feat->hseqname,SQL_VARCHAR);
     $sth->bind_param(7,$feat->analysis->dbID,SQL_INTEGER);
     $sth->bind_param(8,$feat->score,SQL_DOUBLE);
     $sth->bind_param(9,$feat->p_value,SQL_DOUBLE);
     $sth->bind_param(10,$feat->percent_id,SQL_FLOAT);
     $sth->bind_param(11,$extra_data,SQL_LONGVARCHAR);
     
     $sth->execute();
     $original->dbID($sth->{'mysql_insertid'});
     $original->adaptor($self);
 }

  $sth->finish();
}


1;

  my ($self,$feature, $translation_id) = @_;

  if(!ref($feature) || !$feature->isa('Bio::EnsEMBL::ProteinFeature')) {
    throw("ProteinFeature argument is required");
  }

  if(!$translation_id) {
    deprecate("Calling ProteinFeatureAdaptor without a translation_id is " .
              "deprecated.  Pass a translation_id argument rather than " .
              "setting the ProteinFeature seqname to be the translation " .
              "id");
    $translation_id = $feature->seqname();
  }

  my $db = $self->db();

  if($feature->is_stored($db)) {
    warning("ProteinFeature " . $feature->dbID() . " is already stored in " .
            "this database - not storing again");
  }

  my $analysis = $feature->analysis();
  if (!defined($analysis)) {
    throw("Feature doesn't have analysis. Can't write to database");
  }

  if(!$analysis->is_stored($db)) {
    $db->get_AnalysisAdaptor->store($analysis);
  }

  my $sth = 
    $self->prepare("INSERT INTO protein_feature " .
                   "        SET translation_id = ?, " .
                   "            seq_start      = ?, ".
                   "            seq_end        = ?, ".
                   "            analysis_id    = ?, ".
                   "            hit_start      = ?, ".
                   "            hit_end        = ?, ".
                   "            hit_name       = ?, ".
                   "            score          = ?, ".
                   "            perc_ident     = ?, ".
                   "            evalue         = ?");

  $sth->bind_param(1,$translation_id,SQL_INTEGER);
  $sth->bind_param(2,$feature->start,SQL_INTEGER);
  $sth->bind_param(3,$feature->end,SQL_INTEGER);
  $sth->bind_param(4,$analysis->dbID,SQL_INTEGER);
  $sth->bind_param(5,$feature->hstart,SQL_INTEGER);
  $sth->bind_param(6,$feature->hend,SQL_INTEGER);
  $sth->bind_param(7,$feature->hseqname,SQL_VARCHAR);
  $sth->bind_param(8,$feature->score,SQL_DOUBLE);
  $sth->bind_param(9,$feature->percent_id,SQL_FLOAT);
  $sth->bind_param(10,$feature->p_value,SQL_DOUBLE);

  $sth->execute();
  
  my $dbID = $sth->{'mysql_insertid'};

  $feature->adaptor($self);
  $feature->dbID($dbID);
  
  $sth->finish();

  return $dbID;

  Copyright (c) 1999-2009 The European Bioinformatics Institute and
  Genome Research Limited.  All rights reserved.

  This software is distributed under a modified Apache license.
  For license details, please see

    /info/about/code_licence.html

  Please email comments or questions to the public Ensembl
  developers list at <ensembl-dev@ebi.ac.uk>.

  Questions may also be sent to the Ensembl help desk at
  <helpdesk@ensembl.org>.