NAME
Clownfish::Hash - Hashtable.
SYNOPSIS
my $hash = Clownfish::Hash->new;
$hash->store($key, $value);
my $value = $hash->fetch($key);DESCRIPTION
Values are stored by reference and may be any kind of Obj.
CONSTRUCTORS
new
my $hash = Clownfish::Hash->new(
capacity => $capacity, # default: 0
);Return a new Hash.
capacity - The number of elements that the hash will be asked to hold initially.
METHODS
clear
$hash->clear();Empty the hash of all key-value pairs.
store
$hash->store($key, $value);Store a key-value pair.
fetch
my $obj = $hash->fetch($key);Fetch the value associated with key.
Returns: the value, or undef if key is not present.
delete
my $obj = $hash->delete($key);Attempt to delete a key-value pair from the hash.
Returns: the value if key exists and thus deletion succeeds; otherwise undef.
has_key
my $bool = $hash->has_key($key);Indicate whether the supplied key is present.
keys
my $arrayref = $hash->keys();Return the Hash’s keys.
values
my $arrayref = $hash->values();Return the Hash’s values.
get_size
my $int = $hash->get_size();Return the number of key-value pairs.
INHERITANCE
Clownfish::Hash isa Clownfish::Obj.