com.programix.collections
Class MapTools

java.lang.Object
  com.programix.collections.MapTools

public class MapTools
extends Object

Commonly needed utilities for working with the Collections API Map.

Nested Class Summary

static class

MapTools.MapException Used to indicate that something went wrong in one of the MapTools functions.

Method Summary

static Properties	generateFrom(File propertiesFile)
static Properties	generateFrom(InputStream rawIn)
static Properties	generateFrom(URL propertiesURL)
static <K,V> V	get(Map<K,V> map, K key)
static <K,V> V	get(Map<K,V> map, K key, Class<V> valueType)
static <K> String	getString(Map<K,String> map, K key) Used to lookup required String values in a Map.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

get

public static <K,V> V get(Map<K,V> map,
                          K key)
             throws MapTools.MapException

Throws:

MapTools.MapException

get

public static <K,V> V get(Map<K,V> map,
                          K key,
                          Class<V> valueType)
             throws MapTools.MapException

Throws:

MapTools.MapException

getString

public static <K> String getString(Map<K,String> map,
                                   K key)
                        throws MapTools.MapException

Used to lookup required String values in a Map.

Throws:

MapTools.MapException - if the key is not in the map or if the value found can't be cast into a String or either either parameter is null.

generateFrom

public static Properties generateFrom(InputStream rawIn)
                               throws MapTools.MapException

Throws:

MapTools.MapException

generateFrom

public static Properties generateFrom(File propertiesFile)
                               throws MapTools.MapException

Throws:

MapTools.MapException

generateFrom

public static Properties generateFrom(URL propertiesURL)
                               throws MapTools.MapException

Throws:

MapTools.MapException