NAME

Data::Object::Class::Syntax - DSL for Declaring Classes for Perl 5

VERSION

version 0.33

SYNOPSIS

package Person;

use Data::Object::Class;
use Data::Object::Class::Syntax;

has firstname => is required, ro;
has lastname  => is required, ro;

has address1  => is required, rw;
has address2  => is optional, rw;

has ['city', 'state', 'zip'] => is required, rw;

def city  => 'San Franscisco';
def state => 'CA';

has telephone  => is optional, rw;
has occupation => is optional, rw, default 'Unassigned';

1;

DESCRIPTION

Data::Object::Class::Syntax exports a collection of functions that provide a DSL (syntactic sugar) for declaring and describing Data::Object::Class classes.

FUNCTIONS

alt

alt attr => (is => 'ro');

# equivalent to

has '+attr' => (..., is => 'ro');

The alt function alters the preexisting attribute definition for the attribute specified.

builder

builder;
builder '_build_attr';

# equivalent to

has attr => ..., builder => '_build_attr';

The builder function returns a list suitable for configuring the builder portion of the attribute declaration.

clearer

clearer;
clearer '_clear_attr';

# equivalent to

has attr => ..., clearer => '_clean_attr';

The clearer function returns a list suitable for configuring the clearer portion of the attribute declaration.

coerce

coerce;

# equivalent to

has attr => ..., coerce => 1;

The coerce function return a list suitable for configuring the coerce portion of the attribute declaration.

def

def attr => sub { 1 };

# equivalent to

has '+attr' => (..., default => sub { 1 });

The def function alters the preexisting attribute definition setting and/or overriding the default value property.

default

default sub { ... };

# equivalent to

has attr => ..., default => sub { ... };

The default function returns a list suitable for configuring the default portion of the attribute declaration.

handles

handles { ... };

# equivalent to

has attr => ..., handles => { ... };

The handles function returns a list suitable for configuring the handles portion of the attribute declaration.

init_arg

init_arg;
init_arg 'altattr';

# equivalent to

has attr => ..., init_arg => 'altattr';

The init_arg function returns a list suitable for configuring the init_arg portion of the attribute declaration.

is

is;

The is function returns a list from a list, and acts merely as a pass-through, for the purpose of being a visual/descriptive aid.

isa

isa sub { ... };

# equivalent to

has attr => ..., isa => sub { ... };

The isa function returns a list suitable for configuring the isa portion of the attribute declaration.

lazy

lazy;

# equivalent to

has attr => ..., lazy => 1;

The lazy function returns a list suitable for configuring the lazy portion of the attribute declaration.

optional

optional;

# equivalent to

has attr => ..., required => 0;

The optional function returns a list suitable for configuring the required portion of the attribute declaration.

predicate

predicate;
predicate '_has_attr';

# equivalent to

has attr => ..., predicate => '_has_attr';

The predicate function returns a list suitable for configuring the predicate portion of the attribute declaration.

reader

reader;
reader '_get_attr';

# equivalent to

has attr => ..., reader => '_get_attr';

The reader function returns a list suitable for configuring the reader portion of the attribute declaration.

required

required;

# equivalent to

has attr => ..., required => 1;

The required function returns a list suitable for configuring the required portion of the attribute declaration.

ro

ro;

# equivalent to

has attr => ..., is => 'ro';

The ro function returns a list suitable for configuring the is portion of the attribute declaration.

rw

rw;

# equivalent to

has attr => ..., is => 'rw';

The rw function returns a list suitable for configuring the rw portion of the attribute declaration.

trigger

trigger;
trigger '_trigger_attr';

# equivalent to

has attr => ..., trigger => '_trigger_attr';

The trigger function returns a list suitable for configuring the trigger portion of the attribute declaration.

weak_ref

weak_ref;

# equivalent to

has attr => ..., weak_ref => 1;

The weak_ref function returns a list suitable for configuring the weak_ref portion of the attribute declaration.

writer

writer;
writer '_set_attr';

# equivalent to

has attr => ..., writer => '_set_attr';

The writer function returns a list suitable for configuring the writer portion of the attribute declaration.

SEE ALSO

AUTHOR

Al Newkirk <anewkirk@ana.io>

COPYRIGHT AND LICENSE

This software is copyright (c) 2014 by Al Newkirk.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.