Trait CategoryTrait

Namespace: Charcoal\Object
Located at Charcoal/Object/CategoryTrait.php

Methods summary
`public Charcoal\Object\CategoryInterface`	# `setCategoryItemType( string $type )` Parameters `$type` The category item type. Returns `Charcoal\Object\CategoryInterface` Chainable Throws InvalidArgumentException If the type argument is not a string.
`public string`	# `categoryItemType( )` Returns string Throws Exception If no item type was previously set.
`public integer`	# `numCategoryItems( )` Returns integer
`public boolean`	# `hasCategoryItems( )` Returns boolean
`public Collection`	# `categoryItems( )` Returns Collection A list of `CategorizableInterface` objects
`abstract public Collection`	# `loadCategoryItems( )` Returns Collection