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.