# Plucene::Index::FieldInfos - phpMan

## NAME
    [Plucene::Index::FieldInfos] - a collection of FieldInfo objects

## SYNOPSIS
            my $fis = [Plucene::Index::FieldInfos]->new($dir_name);
            my $fis = [Plucene::Index::FieldInfos]->new($dir_name, $file);

            $fis->add([Plucene::Document] $doc, $indexed);
            $fis->add([Plucene::Index::FieldInfos] $other_fis, $indexed);
            $fis->add($name, $indexed);

            $fis->write($path);

            my @fields = $fis->fields;

            my $field_number = $fis->field_number($name);
            my   $field_info = $fis->field_info($name);
            my   $field_name = $fis->field_name($number);
            my   $num_fields = $fis->size;

## DESCRIPTION
    This is a collection of field info objects, which happen to live in the
    field infos file.

## METHODS
  new
            my $fis = [Plucene::Index::FieldInfos]->new($dir_name);
            my $fis = [Plucene::Index::FieldInfos]->new($dir_name, $file);

    This will create a new [Plucene::Index::FieldInfos] object with the passed
    directory and optional filename.

  add
            $fis->add([Plucene::Document] $doc, $indexed);
            $fis->add([Plucene::Index::FieldInfos] $other_fis, $indexed);
            $fis->add($name, $indexed);

    This will add the fields from a [Plucene::Document] or a
    [Plucene::Index::FieldsInfos] to the field infos file.

    It is also possible to pass the name of a field and have it added to the
    file.

  field_number
            my $field_number = $fis->field_number($name);

    This will return the field number of the field with $name. If there is
    no match, then -1 is returned.

  fields
            my @fields = $fis->fields;

    This will return all the fields.

  field_info
            my $field_info = $fis->field_info($name);

    This will return the field info for the field called $name.

  field_name
            my $field_name = $fis->field_name($number);

    This will return the field name for the field whose number is $number.

  size
            my $num_fields = $fis->size;

    This returns the number of field info objects.

  write
            $fis->write($path);

    This will write the field info objects to $path.