NAME
Lucy::Plan::Schema - User-created specification for an inverted index.
SYNOPSIS
use Lucy::Plan::Schema;
use Lucy::Plan::FullTextType;
use Lucy::Analysis::EasyAnalyzer;
my $schema = Lucy::Plan::Schema->new;
my $easyanalyzer = Lucy::Analysis::EasyAnalyzer->new(
language => 'en',
);
my $type = Lucy::Plan::FullTextType->new(
analyzer => $easyanalyzer,
);
$schema->spec_field( name => 'title', type => $type );
$schema->spec_field( name => 'content', type => $type );DESCRIPTION
A Schema is a specification which indicates how other entities should interpret the raw data in an inverted index and interact with it.
Once an actual index has been created using a particular Schema, existing field definitions may not be changed. However, it is possible to add new fields during subsequent indexing sessions.
CONSTRUCTORS
new()
my $schema = Lucy::Plan::Schema->new;Constructor. Takes no arguments.
METHODS
spec_field( [labeled params] )
Define the behavior of a field by associating it with a FieldType.
If this method has already been called for the supplied field, it will merely test to verify that the supplied FieldType equals() the existing one.
name - The name of the field.
type - A FieldType.
num_fields()
Return the number of fields currently defined.
all_fields()
Return all the Schema's field names as an array.
fetch_type(field)
Return the FieldType for the specified field. If the field can't be found, return undef.
fetch_sim(field)
Return the Similarity for the specified field, or undef if either the field can't be found or it isn't associated with a Similarity.
architecture()
Factory method which creates an Architecture object for this index.
get_architecture()
Return the Schema instance's internal Architecture object.
get_similarity()
Return the Schema instance's internal Similarity object.
INHERITANCE
Lucy::Plan::Schema isa Clownfish::Obj.