Directory (veraPDF WCAG Validation 1.20.1 API)

Type Parameters:

K - the Directory key type

V - the Directory value type

All Known Subinterfaces:

Registry<K,V>

All Known Implementing Classes:

MapBackedDirectory, MapBackedRegistry
```
public interface Directory<K,V>
```
A read only Directory that supports key and value types.

Author:

Carl Wilson

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`V`	`getItem(K key)`
`Collection<V>`	`getItems()`
`Set<K>`	`getKeys()`
`boolean`	`isEmpty()`
`int`	`size()`

- Method Detail
  - getItem
```
V getItem(K key)
```
    Parameters:
    
    key - the key used to lookup a particular item
    
    Returns:
    
    the value instance associated with the key
  - getItems
```
Collection<V> getItems()
```
    Returns:
    
    the Collection of values contained in the directory
  - getKeys
```
Set<K> getKeys()
```
    Returns:
    
    the Set of keys contained in the directory
  - size
```
int size()
```
    Returns:
    
    the number of items held in the directory
  - isEmpty
```
boolean isEmpty()
```
    Returns:
    
    true if the directory contains no items, false if not.